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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kunit fixes from Shuah Khan:
"One fix to force the use of the 'tty' console for UML.
Given that kunit tool requires the console output, explicitly stating
the dependency makes sense than relying on it being the default"
* tag 'linux-kselftest-kunit-fixes-5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: tool: Force the use of the 'tty' console for UML
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fixes from Shuah Khan:
"Two minor fixes to vDSO test changes in this merge window"
* tag 'linux-kselftest-next-5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/vDSO: fix -Wformat warning in vdso_test_correctness
selftests/vDSO: add additional binaries to .gitignore
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Pull kvm fixes from Paolo Bonzini:
"x86:
- Fixes for the new scalable MMU
- Fixes for migration of nested hypervisors on AMD
- Fix for clang integrated assembler
- Fix for left shift by 64 (UBSAN)
- Small cleanups
- Straggler SEV-ES patch
ARM:
- VM init cleanups
- PSCI relay cleanups
- Kill CONFIG_KVM_ARM_PMU
- Fixup __init annotations
- Fixup reg_to_encoding()
- Fix spurious PMCR_EL0 access
Misc:
- selftests cleanups"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (38 commits)
KVM: x86: __kvm_vcpu_halt can be static
KVM: SVM: Add support for booting APs in an SEV-ES guest
KVM: nSVM: cancel KVM_REQ_GET_NESTED_STATE_PAGES on nested vmexit
KVM: nSVM: mark vmcb as dirty when forcingly leaving the guest mode
KVM: nSVM: correctly restore nested_run_pending on migration
KVM: x86/mmu: Clarify TDP MMU page list invariants
KVM: x86/mmu: Ensure TDP MMU roots are freed after yield
kvm: check tlbs_dirty directly
KVM: x86: change in pv_eoi_get_pending() to make code more readable
MAINTAINERS: Really update email address for Sean Christopherson
KVM: x86: fix shift out of bounds reported by UBSAN
KVM: selftests: Implement perf_test_util more conventionally
KVM: selftests: Use vm_create_with_vcpus in create_vm
KVM: selftests: Factor out guest mode code
KVM/SVM: Remove leftover __svm_vcpu_run prototype from svm.c
KVM: SVM: Add register operand to vmsave call in sev_es_vcpu_load
KVM: x86/mmu: Optimize not-present/MMIO SPTE check in get_mmio_spte()
KVM: x86/mmu: Use raw level to index into MMIO walks' sptes array
KVM: x86/mmu: Get root level from walkers when retrieving MMIO SPTE
KVM: x86/mmu: Use -1 to flag an undefined spte in get_mmio_spte()
...
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For IPv6 traffic, mausezahn needs to be invoked with '-6'. Otherwise an
error is returned:
# ip netns exec me mausezahn veth1 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 -t tcp "dp=1-1023, flags=syn"
Failed to set source IPv4 address. Please check if source is set to a valid IPv4 address.
Invalid command line parameters!
Fixes: 7c741868ceab ("selftests: Add torture tests to nexthop tests")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Alexei Starovoitov says:
====================
pull-request: bpf 2021-01-07
We've added 4 non-merge commits during the last 10 day(s) which contain
a total of 4 files changed, 14 insertions(+), 7 deletions(-).
The main changes are:
1) Fix task_iter bug caused by the merge conflict resolution, from Yonghong.
2) Fix resolve_btfids for multiple type hierarchies, from Jiri.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpftool: Fix compilation failure for net.o with older glibc
tools/resolve_btfids: Warn when having multiple IDs for single type
bpf: Fix a task_iter bug caused by a merge conflict resolution
selftests/bpf: Fix a compile error for BPF_F_BPRM_SECUREEXEC
====================
Link: https://lore.kernel.org/r/20210107221555.64959-1-alexei.starovoitov@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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It's not conventional C to put non-inline functions in header
files. Create a source file for the functions instead. Also
reduce the amount of globals and rename the functions to
something less generic.
Reviewed-by: Ben Gardon <bgardon@google.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-Id: <20201218141734.54359-4-drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Reviewed-by: Ben Gardon <bgardon@google.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-Id: <20201218141734.54359-3-drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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demand_paging_test, dirty_log_test, and dirty_log_perf_test have
redundant guest mode code. Factor it out.
Also, while adding a new include, remove the ones we don't need.
Reviewed-by: Ben Gardon <bgardon@google.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-Id: <20201218141734.54359-2-drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Fixes to get_mmio_spte, destined to 5.10 stable branch.
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connection tracking
Convert Christians bug description into a reproducer.
Cc: Shuah Khan <shuah@kernel.org>
Reported-by: Christian Perle <christian.perle@secunet.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Adds new 2 new tests to the PTMU script: pmtu_ipv4/6_route_change.
These tests explicitly test for a recently discovered problem in the
IPv6 routing framework where PMTU exceptions were not properly released
when replacing a route via "ip route change ...".
After creating PMTU exceptions, the route from the device A to R1 will be
replaced with a new route, then device A will be deleted. If the PMTU
exceptions were properly cleaned up by the kernel, this device deletion
will succeed. Otherwise, the unregistration of the device will stall, and
messages such as the following will be logged in dmesg:
unregister_netdevice: waiting for veth_A-R1 to become free. Usage count = 4
Signed-off-by: Sean Tranchetti <stranche@codeaurora.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/1609892546-11389-2-git-send-email-stranche@quicinc.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The udpgro.sh will always return 0 (unless the bpf selftest was not
build first) even if there are some failed sub test-cases.
Therefore the kselftest framework will report this case is OK.
Check and return the exit status of each test to make it easier to
spot real failures.
Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes, including fixes from netfilter, wireless and bpf
trees.
Current release - regressions:
- mt76: fix NULL pointer dereference in mt76u_status_worker and
mt76s_process_tx_queue
- net: ipa: fix interconnect enable bug
Current release - always broken:
- netfilter: fixes possible oops in mtype_resize in ipset
- ath11k: fix number of coding issues found by static analysis tools
and spurious error messages
Previous releases - regressions:
- e1000e: re-enable s0ix power saving flows for systems with the
Intel i219-LM Ethernet controllers to fix power use regression
- virtio_net: fix recursive call to cpus_read_lock() to avoid a
deadlock
- ipv4: ignore ECN bits for fib lookups in fib_compute_spec_dst()
- sysfs: take the rtnl lock around XPS configuration
- xsk: fix memory leak for failed bind and rollback reservation at
NETDEV_TX_BUSY
- r8169: work around power-saving bug on some chip versions
Previous releases - always broken:
- dcb: validate netlink message in DCB handler
- tun: fix return value when the number of iovs exceeds MAX_SKB_FRAGS
to prevent unnecessary retries
- vhost_net: fix ubuf refcount when sendmsg fails
- bpf: save correct stopping point in file seq iteration
- ncsi: use real net-device for response handler
- neighbor: fix div by zero caused by a data race (TOCTOU)
- bareudp: fix use of incorrect min_headroom size and a false
positive lockdep splat from the TX lock
- mvpp2:
- clear force link UP during port init procedure in case
bootloader had set it
- add TCAM entry to drop flow control pause frames
- fix PPPoE with ipv6 packet parsing
- fix GoP Networking Complex Control config of port 3
- fix pkt coalescing IRQ-threshold configuration
- xsk: fix race in SKB mode transmit with shared cq
- ionic: account for vlan tag len in rx buffer len
- stmmac: ignore the second clock input, current clock framework does
not handle exclusive clock use well, other drivers may reconfigure
the second clock
Misc:
- ppp: change PPPIOCUNBRIDGECHAN ioctl request number to follow
existing scheme"
* tag 'net-5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (99 commits)
net: dsa: lantiq_gswip: Fix GSWIP_MII_CFG(p) register access
net: dsa: lantiq_gswip: Enable GSWIP_MII_CFG_EN also for internal PHYs
net: lapb: Decrease the refcount of "struct lapb_cb" in lapb_device_event
r8169: work around power-saving bug on some chip versions
net: usb: qmi_wwan: add Quectel EM160R-GL
selftests: mlxsw: Set headroom size of correct port
net: macb: Correct usage of MACB_CAPS_CLK_HW_CHG flag
ibmvnic: fix: NULL pointer dereference.
docs: networking: packet_mmap: fix old config reference
docs: networking: packet_mmap: fix formatting for C macros
vhost_net: fix ubuf refcount incorrectly when sendmsg fails
bareudp: Fix use of incorrect min_headroom size
bareudp: set NETIF_F_LLTX flag
net: hdlc_ppp: Fix issues when mod_timer is called while timer is running
atlantic: remove architecture depends
erspan: fix version 1 check in gre_parse_header()
net: hns: fix return value check in __lb_other_process()
net: sched: prevent invalid Scell_log shift count
net: neighbor: fix a crash caused by mod zero
ipv4: Ignore ECN bits for fib lookups in fib_compute_spec_dst()
...
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The test was setting the headroom size of the wrong port. This was not
visible because of a firmware bug that canceled this bug.
Set the headroom size of the correct port, so that the test will pass
with both old and new firmware versions.
Fixes: bfa804784e32 ("selftests: mlxsw: Add a PFC test")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/20201230114251.394009-1-idosch@idosch.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Pull ENABLE_MUST_CHECK removal from Miguel Ojeda:
"Remove CONFIG_ENABLE_MUST_CHECK (Masahiro Yamada)"
Note that this removes the config option by making the must-check
unconditional, not by removing must check itself.
* tag 'compiler-attributes-for-linus-v5.11' of git://github.com/ojeda/linux:
Compiler Attributes: remove CONFIG_ENABLE_MUST_CHECK
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Fix the following -Wformat warnings in vdso_test_correctness.c:
vdso_test_correctness.c: In function ‘test_one_clock_gettime64’:
vdso_test_correctness.c:352:21: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 3 has type ‘long long int’ [-Wformat=]
352 | printf("\t%llu.%09ld %llu.%09ld %llu.%09ld\n",
| ~~~~^
| |
| long int
| %09lld
353 | (unsigned long long)start.tv_sec, start.tv_nsec,
| ~~~~~~~~~~~~~
| |
| long long int
vdso_test_correctness.c:352:32: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 5 has type ‘long long int’ [-Wformat=]
352 | printf("\t%llu.%09ld %llu.%09ld %llu.%09ld\n",
| ~~~~^
| |
| long int
| %09lld
353 | (unsigned long long)start.tv_sec, start.tv_nsec,
354 | (unsigned long long)vdso.tv_sec, vdso.tv_nsec,
| ~~~~~~~~~~~~
| |
| long long int
vdso_test_correctness.c:352:43: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 7 has type ‘long long int’ [-Wformat=]
The tv_sec member of __kernel_timespec is long long, both in
uapi/linux/time_types.h and locally in vdso_test_correctness.c.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Add the test binaries introduced by commit 693f5ca08ca0 ("kselftest:
Extend vDSO selftest"), commit 03f55c7952c9 ("kselftest: Extend vDSO
selftest to clock_getres") and commit c7e5789b24d3 ("kselftest: Move
test_vdso to the vDSO test suite") to .gitignore.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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kunit_tool relies on the UML console outputting printk() output to the
tty in order to get results. Since the default console driver could
change, pass 'console=tty' to the kernel.
This is triggered by a change[1] to use ttynull as a fallback console
driver which -- by chance or by design -- seems to have changed the
default console output on UML, breaking kunit_tool. While this may be
fixed, we should be less fragile to such changes in the default.
[1]:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=757055ae8dedf5333af17b3b5b4b70ba9bc9da4e
Signed-off-by: David Gow <davidgow@google.com>
Fixes: 757055ae8ded ("init/console: Use ttynull as a fallback when there is no console")
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Commit d8cbe8bfa7d ("tools/testing/selftests/vm: fix build error") tried
to include a ARCH check for powerpc, however ARCH is not defined in the
Makefile before including lib.mk. This makes test building to skip on
both x86 and powerpc.
Fix the arch check by replacing it using machine type as it is already
defined and used in the test.
Link: https://lkml.kernel.org/r/20201215100402.257376-1-harish@linux.ibm.com
Fixes: d8cbe8bfa7d ("tools/testing/selftests/vm: fix build error")
Signed-off-by: Harish <harish@linux.ibm.com>
Reviewed-by: Sandipan Das <sandipan@linux.ibm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Sandipan Das <sandipan@linux.ibm.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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When CONFIG_BPF_LSM is not configured, running bpf selftesting will show
BPF_F_BPRM_SECUREEXEC undefined error for bprm_opts.c.
The problem is that bprm_opts.c includes vmliunx.h. The vmlinux.h is
generated by "bpftool btf dump file ./vmlinux format c". On the other
hand, BPF_F_BPRM_SECUREEXEC is defined in include/uapi/linux/bpf.h
and used only in bpf_lsm.c. When CONFIG_BPF_LSM is not set, bpf_lsm
will not be compiled, so vmlinux.h will not include definition of
BPF_F_BPRM_SECUREEXEC.
Ideally, we want to compile bpf selftest regardless of the configuration
setting, so change the include file from vmlinux.h to bpf.h.
Signed-off-by: Jiang Wang <jiang.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20201224011242.585967-1-jiang.wang@bytedance.com
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Daniel Borkmann says:
====================
pull-request: bpf 2020-12-28
The following pull-request contains BPF updates for your *net* tree.
There is a small merge conflict between bpf tree commit 69ca310f3416
("bpf: Save correct stopping point in file seq iteration") and net tree
commit 66ed594409a1 ("bpf/task_iter: In task_file_seq_get_next use
task_lookup_next_fd_rcu"). The get_files_struct() does not exist anymore
in net, so take the hunk in HEAD and add the `info->tid = curr_tid` to
the error path:
[...]
curr_task = task_seq_get_next(ns, &curr_tid, true);
if (!curr_task) {
info->task = NULL;
info->tid = curr_tid;
return NULL;
}
/* set info->task and info->tid */
[...]
We've added 10 non-merge commits during the last 9 day(s) which contain
a total of 11 files changed, 75 insertions(+), 20 deletions(-).
The main changes are:
1) Various AF_XDP fixes such as fill/completion ring leak on failed bind and
fixing a race in skb mode's backpressure mechanism, from Magnus Karlsson.
2) Fix latency spikes on lockdep enabled kernels by adding a rescheduling
point to BPF hashtab initialization, from Eric Dumazet.
3) Fix a splat in task iterator by saving the correct stopping point in the
seq file iteration, from Jonathan Lemon.
4) Fix BPF maps selftest by adding retries in case hashtab returns EBUSY
errors on update/deletes, from Andrii Nakryiko.
5) Fix BPF selftest error reporting to something more user friendly if the
vmlinux BTF cannot be found, from Kamal Mostafa.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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20b6cc34ea74 ("bpf: Avoid hashtab deadlock with map_locked") introduced
a possibility of getting EBUSY error on lock contention, which seems to happen
very deterministically in test_maps when running 1024 threads on low-CPU
machine. In libbpf CI case, it's a 2 CPU VM and it's hitting this 100% of the
time. Work around by retrying on EBUSY (and EAGAIN, while we are at it) after
a small sleep. sched_yield() is too agressive and fails even after 20 retries,
so I went with usleep(1) for backoff.
Also log actual error returned to make it easier to see what's going on.
Fixes: 20b6cc34ea74 ("bpf: Avoid hashtab deadlock with map_locked")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20201223200652.3417075-1-andrii@kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Use /usr/bin/env for shebang lines in scripts
- Remove useless -Wnested-externs warning flag
- Update documents
- Refactor log handling in modpost
- Stop building modules without MODULE_LICENSE() tag
- Make the insane combination of 'static' and EXPORT_SYMBOL an error
- Improve genksyms to handle _Static_assert()
* tag 'kbuild-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
Documentation/kbuild: Document platform dependency practises
Documentation/kbuild: Document COMPILE_TEST dependencies
genksyms: Ignore module scoped _Static_assert()
modpost: turn static exports into error
modpost: turn section mismatches to error from fatal()
modpost: change license incompatibility to error() from fatal()
modpost: turn missing MODULE_LICENSE() into error
modpost: refactor error handling and clarify error/fatal difference
modpost: rename merror() to error()
kbuild: don't hardcode depmod path
kbuild: doc: document subdir-y syntax
kbuild: doc: clarify the difference between extra-y and always-y
kbuild: doc: split if_changed explanation to a separate section
kbuild: doc: merge 'Special Rules' and 'Custom kbuild commands' sections
kbuild: doc: fix 'List directories to visit when descending' section
kbuild: doc: replace arch/$(ARCH)/ with arch/$(SRCARCH)/
kbuild: doc: update the description about kbuild Makefiles
Makefile.extrawarn: remove -Wnested-externs warning
tweewide: Fix most Shebang lines
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Merge KASAN updates from Andrew Morton.
This adds a new hardware tag-based mode to KASAN. The new mode is
similar to the existing software tag-based KASAN, but relies on arm64
Memory Tagging Extension (MTE) to perform memory and pointer tagging
(instead of shadow memory and compiler instrumentation).
By Andrey Konovalov and Vincenzo Frascino.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (60 commits)
kasan: update documentation
kasan, mm: allow cache merging with no metadata
kasan: sanitize objects when metadata doesn't fit
kasan: clarify comment in __kasan_kfree_large
kasan: simplify assign_tag and set_tag calls
kasan: don't round_up too much
kasan, mm: rename kasan_poison_kfree
kasan, mm: check kasan_enabled in annotations
kasan: add and integrate kasan boot parameters
kasan: inline (un)poison_range and check_invalid_free
kasan: open-code kasan_unpoison_slab
kasan: inline random_tag for HW_TAGS
kasan: inline kasan_reset_tag for tag-based modes
kasan: remove __kasan_unpoison_stack
kasan: allow VMAP_STACK for HW_TAGS mode
kasan, arm64: unpoison stack only with CONFIG_KASAN_STACK
kasan: introduce set_alloc_info
kasan: rename get_alloc/free_info
kasan: simplify quarantine_put call site
kselftest/arm64: check GCR_EL1 after context switch
...
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Pull dma-mapping updates from Christoph Hellwig:
- support for a partial IOMMU bypass (Alexey Kardashevskiy)
- add a DMA API benchmark (Barry Song)
- misc fixes (Tiezhu Yang, tangjianqiang)
* tag 'dma-mapping-5.11' of git://git.infradead.org/users/hch/dma-mapping:
selftests/dma: add test application for DMA_MAP_BENCHMARK
dma-mapping: add benchmark support for streaming DMA APIs
dma-contiguous: fix a typo error in a comment
dma-pool: no need to check return value of debugfs_create functions
powerpc/dma: Fallback to dma_ops when persistent memory present
dma-mapping: Allow mixing bypass and mapped DMA operation
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This test is specific to MTE and verifies that the GCR_EL1 register is
context switched correctly.
It spawns 1024 processes and each process spawns 5 threads. Each thread
writes a random setting of GCR_EL1 through the prctl() system call and
reads it back verifying that it is the same. If the values are not the
same it reports a failure.
Note: The test has been extended to verify that even SYNC and ASYNC mode
setting is preserved correctly over context switching.
Link: https://lkml.kernel.org/r/b51a165426e906e7ec8a68d806ef3f8cd92581a6.1606161801.git.andreyknvl@google.com
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Marco Elver <elver@google.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull KVM updates from Paolo Bonzini:
"Much x86 work was pushed out to 5.12, but ARM more than made up for it.
ARM:
- PSCI relay at EL2 when "protected KVM" is enabled
- New exception injection code
- Simplification of AArch32 system register handling
- Fix PMU accesses when no PMU is enabled
- Expose CSV3 on non-Meltdown hosts
- Cache hierarchy discovery fixes
- PV steal-time cleanups
- Allow function pointers at EL2
- Various host EL2 entry cleanups
- Simplification of the EL2 vector allocation
s390:
- memcg accouting for s390 specific parts of kvm and gmap
- selftest for diag318
- new kvm_stat for when async_pf falls back to sync
x86:
- Tracepoints for the new pagetable code from 5.10
- Catch VFIO and KVM irqfd events before userspace
- Reporting dirty pages to userspace with a ring buffer
- SEV-ES host support
- Nested VMX support for wait-for-SIPI activity state
- New feature flag (AVX512 FP16)
- New system ioctl to report Hyper-V-compatible paravirtualization features
Generic:
- Selftest improvements"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (171 commits)
KVM: SVM: fix 32-bit compilation
KVM: SVM: Add AP_JUMP_TABLE support in prep for AP booting
KVM: SVM: Provide support to launch and run an SEV-ES guest
KVM: SVM: Provide an updated VMRUN invocation for SEV-ES guests
KVM: SVM: Provide support for SEV-ES vCPU loading
KVM: SVM: Provide support for SEV-ES vCPU creation/loading
KVM: SVM: Update ASID allocation to support SEV-ES guests
KVM: SVM: Set the encryption mask for the SVM host save area
KVM: SVM: Add NMI support for an SEV-ES guest
KVM: SVM: Guest FPU state save/restore not needed for SEV-ES guest
KVM: SVM: Do not report support for SMM for an SEV-ES guest
KVM: x86: Update __get_sregs() / __set_sregs() to support SEV-ES
KVM: SVM: Add support for CR8 write traps for an SEV-ES guest
KVM: SVM: Add support for CR4 write traps for an SEV-ES guest
KVM: SVM: Add support for CR0 write traps for an SEV-ES guest
KVM: SVM: Add support for EFER write traps for an SEV-ES guest
KVM: SVM: Support string IO operations for an SEV-ES guest
KVM: SVM: Support MMIO for an SEV-ES guest
KVM: SVM: Create trace events for VMGEXIT MSR protocol processing
KVM: SVM: Create trace events for VMGEXIT processing
...
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git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull close_range fix from Christian Brauner:
"syzbot reported a bug when asking close_range() to unshare the file
descriptor table and making all fds close-on-exec.
If CLOSE_RANGE_UNSHARE the caller will receive a private file
descriptor table in case their file descriptor table is currently
shared before operating on the requested file descriptor range.
For the case where the caller has requested all file descriptors to be
actually closed via e.g. close_range(3, ~0U, CLOSE_RANGE_UNSHARE) the
kernel knows that the caller does not need any of the file descriptors
anymore and will optimize the close operation by only copying all
files in the range from 0 to 3 and no others.
However, if the caller requested CLOSE_RANGE_CLOEXEC together with
CLOSE_RANGE_UNSHARE the caller wants to still make use of the file
descriptors so the kernel needs to copy all of them and can't
optimize.
The original patch didn't account for this and thus could cause oopses
as evidenced by the syzbot report because it assumed that all fds had
been copied. Fix this by handling the CLOSE_RANGE_CLOEXEC case and
copying all fds if the two flags are specified together.
This should've been caught in the selftests but the original patch
didn't cover this case and I didn't catch it during review. So in
addition to the bugfix I'm also adding selftests. They will reliably
reproduce the bug on a non-fixed kernel and allows us to catch
regressions and verify correct behavior.
Note, the kernel selftest tree contained a bunch of changes that made
the original selftest fail to compile so there are small fixups in
here make them compile without warnings"
* tag 'close-range-cloexec-unshare-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
selftests/core: add regression test for CLOSE_RANGE_UNSHARE | CLOSE_RANGE_CLOEXEC
selftests/core: add test for CLOSE_RANGE_UNSHARE | CLOSE_RANGE_CLOEXEC
selftests/core: handle missing syscall number for close_range
selftests/core: fix close_range_test build after XFAIL removal
close_range: unshare all fds for CLOSE_RANGE_UNSHARE | CLOSE_RANGE_CLOEXEC
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Merge still more updates from Andrew Morton:
"18 patches.
Subsystems affected by this patch series: mm (memcg and cleanups) and
epoll"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm/Kconfig: fix spelling mistake "whats" -> "what's"
selftests/filesystems: expand epoll with epoll_pwait2
epoll: wire up syscall epoll_pwait2
epoll: add syscall epoll_pwait2
epoll: convert internal api to timespec64
epoll: eliminate unnecessary lock for zero timeout
epoll: replace gotos with a proper loop
epoll: pull all code between fetch_events and send_event into the loop
epoll: simplify and optimize busy loop logic
epoll: move eavail next to the list_empty_careful check
epoll: pull fatal signal checks into ep_send_events()
epoll: simplify signal handling
epoll: check for events when removing a timed out thread from the wait queue
mm/memcontrol:rewrite mem_cgroup_page_lruvec()
mm, kvm: account kvm_vcpu_mmap to kmemcg
mm/memcg: remove unused definitions
mm/memcg: warning on !memcg after readahead page charged
mm/memcg: bail early from swap accounting if memcg disabled
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Code coverage for the epoll_pwait2 syscall.
epoll62: Repeat basic test epoll1, but exercising the new syscall.
epoll63: Pass a timespec and exercise the timeout wakeup path.
Link: https://lkml.kernel.org/r/20201121144401.3727659-5-willemdebruijn.kernel@gmail.com
Signed-off-by: Willem de Bruijn <willemb@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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CLOSE_RANGE_CLOEXEC
This test is a minimalized version of the reproducer given by syzbot
(cf. [1]).
After introducing CLOSE_RANGE_CLOEXEC syzbot reported a crash when
CLOSE_RANGE_CLOEXEC is specified in conjunction with
CLOSE_RANGE_UNSHARE. When CLOSE_RANGE_UNSHARE is specified the caller
will receive a private file descriptor table in case their file
descriptor table is currently shared.
For the case where the caller has requested all file descriptors to be
actually closed via e.g. close_range(3, ~0U, 0) the kernel knows that
the caller does not need any of the file descriptors anymore and will
optimize the close operation by only copying all files in the range from
0 to 3 and no others.
However, if the caller requested CLOSE_RANGE_CLOEXEC together with
CLOSE_RANGE_UNSHARE the caller wants to still make use of the file
descriptors so the kernel needs to copy all of them and can't optimize.
The original patch didn't account for this and thus could cause oopses
as evidenced by the syzbot report. Add tests for this regression.
We first create a huge gap in the fd table. When we now call
CLOSE_RANGE_UNSHARE with a shared fd table and and with ~0U as upper
bound the kernel will only copy up to fd1 file descriptors into the new
fd table. If the kernel is buggy and doesn't handle CLOSE_RANGE_CLOEXEC
correctly it will not have copied all file descriptors and we will oops!
This test passes on a fixed kernel and will trigger an oops on a buggy
kernel.
[1]: https://syzkaller.appspot.com/text?tag=KernelConfig&x=db720fe37a6a41d8
Cc: Giuseppe Scrivano <gscrivan@redhat.com>
Cc: linux-fsdevel@vger.kernel.org
Link: syzbot+96cfd2b22b3213646a93@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20201218145415.801063-4-christian.brauner@ubuntu.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
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Add a test to verify that CLOSE_RANGE_UNSHARE works correctly when combined
with CLOSE_RANGE_CLOEXEC for the single-threaded case.
Cc: Giuseppe Scrivano <gscrivan@redhat.com>
Cc: linux-fsdevel@vger.kernel.org
Link: https://lore.kernel.org/r/20201218145415.801063-3-christian.brauner@ubuntu.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
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This improves the syscall number handling in the close_range()
selftests. This should handle any architecture.
Cc: Giuseppe Scrivano <gscrivan@redhat.com>
Cc: linux-fsdevel@vger.kernel.org
Link: https://lore.kernel.org/r/20201218145415.801063-2-christian.brauner@ubuntu.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
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XFAIL was removed in commit 9847d24af95c ("selftests/harness: Refactor
XFAIL into SKIP") and its use in close_range_test was already replaced
by commit 1d44d0dd61b6 ("selftests: core: use SKIP instead of XFAIL in
close_range_test.c"). However, commit 23afeaeff3d9 ("selftests: core:
add tests for CLOSE_RANGE_CLOEXEC") introduced usage of XFAIL in
TEST(close_range_cloexec). Use SKIP there as well.
Fixes: 23afeaeff3d9 ("selftests: core: add tests for CLOSE_RANGE_CLOEXEC")
Cc: Giuseppe Scrivano <gscrivan@redhat.com>
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Link: https://lore.kernel.org/r/20201218112428.13662-1-tklauser@distanz.ch
Link: https://lore.kernel.org/r/20201218145415.801063-1-christian.brauner@ubuntu.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest updates from Steven Rostedt:
"No new features. Just a couple of fixes that I had in my local
repository that fixed issues with sending the result emails"
* tag 'ktest-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest.pl: Fix the logic for truncating the size of the log file for email
ktest.pl: If size of log is too big to email, email error message
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|
There are two spelling mistakes in output messages. Fix these.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20201214223539.83168-1-colin.king@canonical.com
|
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Current release - always broken:
- net/smc: fix access to parent of an ib device
- devlink: use _BITUL() macro instead of BIT() in the UAPI header
- handful of mptcp fixes
Previous release - regressions:
- intel: AF_XDP: clear the status bits for the next_to_use descriptor
- dpaa2-eth: fix the size of the mapped SGT buffer
Previous release - always broken:
- mptcp: fix security context on server socket
- ethtool: fix string set id check
- ethtool: fix error paths in ethnl_set_channels()
- lan743x: fix rx_napi_poll/interrupt ping-pong
- qca: ar9331: fix sleeping function called from invalid context bug"
* tag 'net-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (32 commits)
net/sched: sch_taprio: reset child qdiscs before freeing them
nfp: move indirect block cleanup to flower app stop callback
octeontx2-af: Fix undetected unmap PF error check
net: nixge: fix spelling mistake in Kconfig: "Instuments" -> "Instruments"
qlcnic: Fix error code in probe
mptcp: fix pending data accounting
mptcp: push pending frames when subflow has free space
mptcp: properly annotate nested lock
mptcp: fix security context on server socket
net/mlx5: Fix compilation warning for 32-bit platform
mptcp: clear use_ack and use_map when dropping other suboptions
devlink: use _BITUL() macro instead of BIT() in the UAPI header
net: korina: fix return value
net/smc: fix access to parent of an ib device
ethtool: fix error paths in ethnl_set_channels()
nfc: s3fwrn5: Remove unused NCI prop commands
nfc: s3fwrn5: Remove the delay for NFC sleep
phy: fix kdoc warning
tipc: do sanity check payload of a netlink message
use __netdev_notify_peers in hyperv
...
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- Switch to the generic C VDSO, as well as some cleanups of our VDSO
setup/handling code.
- Support for KUAP (Kernel User Access Prevention) on systems using the
hashed page table MMU, using memory protection keys.
- Better handling of PowerVM SMT8 systems where all threads of a core
do not share an L2, allowing the scheduler to make better scheduling
decisions.
- Further improvements to our machine check handling.
- Show registers when unwinding interrupt frames during stack traces.
- Improvements to our pseries (PowerVM) partition migration code.
- Several series from Christophe refactoring and cleaning up various
parts of the 32-bit code.
- Other smaller features, fixes & cleanups.
Thanks to: Alan Modra, Alexey Kardashevskiy, Andrew Donnellan, Aneesh
Kumar K.V, Ard Biesheuvel, Athira Rajeev, Balamuruhan S, Bill Wendling,
Cédric Le Goater, Christophe Leroy, Christophe Lombard, Colin Ian King,
Daniel Axtens, David Hildenbrand, Frederic Barrat, Ganesh Goudar,
Gautham R. Shenoy, Geert Uytterhoeven, Giuseppe Sacco, Greg Kurz,
Harish, Jan Kratochvil, Jordan Niethe, Kaixu Xia, Laurent Dufour,
Leonardo Bras, Madhavan Srinivasan, Mahesh Salgaonkar, Mathieu
Desnoyers, Nathan Lynch, Nicholas Piggin, Oleg Nesterov, Oliver
O'Halloran, Oscar Salvador, Po-Hsu Lin, Qian Cai, Qinglang Miao, Randy
Dunlap, Ravi Bangoria, Sachin Sant, Sandipan Das, Sebastian Andrzej
Siewior , Segher Boessenkool, Srikar Dronamraju, Tyrel Datwyler, Uwe
Kleine-König, Vincent Stehlé, Youling Tang, and Zhang Xiaoxu.
* tag 'powerpc-5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (304 commits)
powerpc/32s: Fix cleanup_cpu_mmu_context() compile bug
powerpc: Add config fragment for disabling -Werror
powerpc/configs: Add ppc64le_allnoconfig target
powerpc/powernv: Rate limit opal-elog read failure message
powerpc/pseries/memhotplug: Quieten some DLPAR operations
powerpc/ps3: use dma_mapping_error()
powerpc: force inlining of csum_partial() to avoid multiple csum_partial() with GCC10
powerpc/perf: Fix Threshold Event Counter Multiplier width for P10
powerpc/mm: Fix hugetlb_free_pmd_range() and hugetlb_free_pud_range()
KVM: PPC: Book3S HV: Fix mask size for emulated msgsndp
KVM: PPC: fix comparison to bool warning
KVM: PPC: Book3S: Assign boolean values to a bool variable
powerpc: Inline setup_kup()
powerpc/64s: Mark the kuap/kuep functions non __init
KVM: PPC: Book3S HV: XIVE: Add a comment regarding VP numbering
powerpc/xive: Improve error reporting of OPAL calls
powerpc/xive: Simplify xive_do_source_eoi()
powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_EOI_FW
powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_MASK_FW
powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_SHIFT_BUG
...
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When multiple subflows are active, we can receive a
window update on subflow with no write space available.
MPTCP will try to push frames on such subflow and will
fail. Pending frames will be pushed only after receiving
a window update on a subflow with some wspace available.
Overall the above could lead to suboptimal aggregate
bandwidth usage.
Instead, we should try to push pending frames as soon as
the subflow reaches both conditions mentioned above.
We can finally enable self-tests with asymmetric links,
as the above makes them finally pass.
Fixes: 6f8a612a33e4 ("mptcp: keep track of advertised windows right edge")
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Pull rdma updates from Jason Gunthorpe:
"A smaller set of patches, nothing stands out as being particularly
major this cycle. The biggest item would be the new HIP09 HW support
from HNS, otherwise it was pretty quiet for new work here:
- Driver bug fixes and updates: bnxt_re, cxgb4, rxe, hns, i40iw,
cxgb4, mlx4 and mlx5
- Bug fixes and polishing for the new rts ULP
- Cleanup of uverbs checking for allowed driver operations
- Use sysfs_emit all over the place
- Lots of bug fixes and clarity improvements for hns
- hip09 support for hns
- NDR and 50/100Gb signaling rates
- Remove dma_virt_ops and go back to using the IB DMA wrappers
- mlx5 optimizations for contiguous DMA regions"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (147 commits)
RDMA/cma: Don't overwrite sgid_attr after device is released
RDMA/mlx5: Fix MR cache memory leak
RDMA/rxe: Use acquire/release for memory ordering
RDMA/hns: Simplify AEQE process for different types of queue
RDMA/hns: Fix inaccurate prints
RDMA/hns: Fix incorrect symbol types
RDMA/hns: Clear redundant variable initialization
RDMA/hns: Fix coding style issues
RDMA/hns: Remove unnecessary access right set during INIT2INIT
RDMA/hns: WARN_ON if get a reserved sl from users
RDMA/hns: Avoid filling sl in high 3 bits of vlan_id
RDMA/hns: Do shift on traffic class when using RoCEv2
RDMA/hns: Normalization the judgment of some features
RDMA/hns: Limit the length of data copied between kernel and userspace
RDMA/mlx4: Remove bogus dev_base_lock usage
RDMA/uverbs: Fix incorrect variable type
RDMA/core: Do not indicate device ready when device enablement fails
RDMA/core: Clean up cq pool mechanism
RDMA/core: Update kernel documentation for ib_create_named_qp()
MAINTAINERS: SOFT-ROCE: Change Zhu Yanjun's email address
...
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull seccomp updates from Kees Cook:
"The major change here is finally gaining seccomp constant-action
bitmaps, which internally reduces the seccomp overhead for many
real-world syscall filters to O(1), as discussed at Plumbers this
year.
- Improve seccomp performance via constant-action bitmaps (YiFei Zhu
& Kees Cook)
- Fix bogus __user annotations (Jann Horn)
- Add missed CONFIG for improved selftest coverage (Mickaël Salaün)"
* tag 'seccomp-v5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
selftests/seccomp: Update kernel config
seccomp: Remove bogus __user annotations
seccomp/cache: Report cache data through /proc/pid/seccomp_cache
xtensa: Enable seccomp architecture tracking
sh: Enable seccomp architecture tracking
s390: Enable seccomp architecture tracking
riscv: Enable seccomp architecture tracking
powerpc: Enable seccomp architecture tracking
parisc: Enable seccomp architecture tracking
csky: Enable seccomp architecture tracking
arm: Enable seccomp architecture tracking
arm64: Enable seccomp architecture tracking
selftests/seccomp: Compare bitmap vs filter overhead
x86: Enable seccomp architecture tracking
seccomp/cache: Add "emulator" to check if filter is constant allow
seccomp/cache: Lookup syscall allowlist bitmap for fast path
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If Makefile cannot find any of the vmlinux's in its VMLINUX_BTF_PATHS list,
it tries to run btftool incorrectly, with VMLINUX_BTF unset:
bpftool btf dump file $(VMLINUX_BTF) format c
Such that the keyword 'format' is misinterpreted as the path to vmlinux.
The resulting build error message is fairly cryptic:
GEN vmlinux.h
Error: failed to load BTF from format: No such file or directory
This patch makes the failure reason clearer by yielding this instead:
Makefile:...: *** Cannot find a vmlinux for VMLINUX_BTF at any of
"{paths}". Stop.
Fixes: acbd06206bbb ("selftests/bpf: Add vmlinux.h selftest exercising tracing of syscalls")
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201215182011.15755-1-kamal@canonical.com
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kunit updates from Shuah Khan:
- documentation update and fix to kunit_tool to parse diagnostic
messages correctly from David Gow
- Support for Parameterized Testing and fs/ext4 test updates to use
KUnit parameterized testing feature from Arpitha Raghunandan
- Helper to derive file names depending on --build_dir argument from
Andy Shevchenko
* tag 'linux-kselftest-kunit-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
fs: ext4: Modify inode-test.c to use KUnit parameterized testing feature
kunit: Support for Parameterized Testing
kunit: kunit_tool: Correctly parse diagnostic messages
Documentation: kunit: provide guidance for testing many inputs
kunit: Introduce get_file_path() helper
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest updates from Shuah Khan:
- Much needed gpio test Makefile cleanup to various problems with test
dependencies and build errors from Michael Ellerman
- Enabling vDSO test on non x86 platforms from Vincenzo Frascino
- Fix intel_pstate to replace deprecated ftime() usages with
clock_gettime() from Tommi Rantala
- cgroup test build fix on older releases from Sachin Sant
- A couple of spelling mistake fixes
* tag 'linux-kselftest-next-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/cgroup: Fix build on older distros
selftests/run_kselftest.sh: fix dry-run typo
tool: selftests: fix spelling typo of 'writting'
selftests/memfd: Fix implicit declaration warnings
selftests: intel_pstate: ftime() is deprecated
selftests/gpio: Add to CLEAN rule rather than overriding
selftests/gpio: Fix build when source tree is read only
selftests/gpio: Move include of lib.mk up
selftests/gpio: Use TEST_GEN_PROGS_EXTENDED
kselftest: Extend vdso correctness test to clock_gettime64
kselftest: Move test_vdso to the vDSO test suite
kselftest: Extend vDSO selftest to clock_getres
kselftest: Extend vDSO selftest
kselftest: Enable vDSO test on non x86 platforms
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
"Build fixes for clone3 and rseq tests"
* tag 'linux-kselftest-fixes-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/clone3: Fix build error
rseq/selftests: Fix MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ build error under other arch.
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Merge yet more updates from Andrew Morton:
- lots of little subsystems
- a few post-linux-next MM material. Most of the rest awaits more
merging of other trees.
Subsystems affected by this series: alpha, procfs, misc, core-kernel,
bitmap, lib, lz4, checkpatch, nilfs, kdump, rapidio, gcov, bfs, relay,
resource, ubsan, reboot, fault-injection, lzo, apparmor, and mm (swap,
memory-hotplug, pagemap, cleanups, and gup).
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (86 commits)
mm: fix some spelling mistakes in comments
mm: simplify follow_pte{,pmd}
mm: unexport follow_pte_pmd
apparmor: remove duplicate macro list_entry_is_head()
lib/lzo/lzo1x_compress.c: make lzogeneric1x_1_compress() static
fault-injection: handle EI_ETYPE_TRUE
reboot: hide from sysfs not applicable settings
reboot: allow to override reboot type if quirks are found
reboot: remove cf9_safe from allowed types and rename cf9_force
reboot: allow to specify reboot mode via sysfs
reboot: refactor and comment the cpu selection code
lib/ubsan.c: mark type_check_kinds with static keyword
kcov: don't instrument with UBSAN
ubsan: expand tests and reporting
ubsan: remove UBSAN_MISC in favor of individual options
ubsan: enable for all*config builds
ubsan: disable UBSAN_TRAP for all*config
ubsan: disable object-size sanitizer under GCC
ubsan: move cc-option tests into Kconfig
ubsan: remove redundant -Wno-maybe-uninitialized
...
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This new test ensures that fortified strscpy has the same behavior than
vanilla strscpy (e.g. returning -E2BIG when src content is truncated).
Finally, it generates a crash at runtime because there is a write overflow
in destination string.
Link: https://lkml.kernel.org/r/20201122162451.27551-5-laniel_francis@privacyrequired.com
Signed-off-by: Francis Laniel <laniel_francis@privacyrequired.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Daniel Axtens <dja@axtens.net>
Cc: Daniel Micay <danielmicay@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull close_range/openat2 updates from Christian Brauner:
"This contains a fix for openat2() to make RESOLVE_BENEATH and
RESOLVE_IN_ROOT mutually exclusive. It doesn't make sense to specify
both at the same time. The openat2() selftests have been extended to
verify that these two flags can't be specified together.
This also adds the CLOSE_RANGE_CLOEXEC flag to close_range() which
allows to mark a range of file descriptors as close-on-exec without
actually closing them.
This is useful in general but the use-case that triggered the patch is
installing a seccomp profile in the calling task before exec. If the
seccomp profile wants to block the close_range() syscall it obviously
can't use it to close all fds before exec. If it calls close_range()
before installing the seccomp profile it needs to take care not to
close fds that it will still need before the exec meaning it would
have to call close_range() multiple times on different ranges and then
still fall back to closing fds one by one right before the exec.
CLOSE_RANGE_CLOEXEC allows to solve this problem relying on the exec
codepath to get rid of the unwanted fds. The close_range() tests have
been expanded to verify that CLOSE_RANGE_CLOEXEC works"
* tag 'close-range-openat2-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
selftests: core: add tests for CLOSE_RANGE_CLOEXEC
fs, close_range: add flag CLOSE_RANGE_CLOEXEC
selftests: openat2: add RESOLVE_ conflict test
openat2: reject RESOLVE_BENEATH|RESOLVE_IN_ROOT
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging / IIO driver updates from Greg KH:
"Here is the big staging and IIO driver pull request for 5.11-rc1
Lots of different things in here:
- loads of driver updates
- so many coding style cleanups
- new IIO drivers
- Android ION code is finally removed from the tree
- wimax drivers are moved to staging on their way out of the kernel
Nothing really exciting, just the constant grind of kernel development :)
All have been in linux-next for a while with no reported issues"
* tag 'staging-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (341 commits)
staging: olpc_dcon: Do not call platform_device_unregister() in dcon_probe()
staging: most: Fix spelling mistake "tranceiver" -> "transceiver"
staging: qlge: remove duplicate word in comment
staging: comedi: mf6x4: Fix AI end-of-conversion detection
staging: greybus: Add TODO item about modernizing the pwm code
pinctrl: ralink: add a pinctrl driver for the rt2880 family
dt-bindings: pinctrl: rt2880: add binding document
staging: rtl8723bs: remove ELEMENT_ID enum
staging: rtl8723bs: remove unused macros
staging: rtl8723bs: replace EID_EXTCapability
staging: rtl8723bs: replace EID_BSSIntolerantChlReport
staging: rtl8723bs: replace EID_BSSCoexistence
staging: rtl8723bs: replace _MME_IE_
staging: rtl8723bs: replace _WAPI_IE_
staging: rtl8723bs: replace _EXT_SUPPORTEDRATES_IE_
staging: rtl8723bs: replace _ERPINFO_IE_
staging: rtl8723bs: replace _CHLGETXT_IE_
staging: rtl8723bs: replace _COUNTRY_IE_
staging: rtl8723bs: replace _IBSS_PARA_IE_
staging: rtl8723bs: replace _TIM_IE_
...
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core:
- support "prefer busy polling" NAPI operation mode, where we defer
softirq for some time expecting applications to periodically busy
poll
- AF_XDP: improve efficiency by more batching and hindering the
adjacency cache prefetcher
- af_packet: make packet_fanout.arr size configurable up to 64K
- tcp: optimize TCP zero copy receive in presence of partial or
unaligned reads making zero copy a performance win for much smaller
messages
- XDP: add bulk APIs for returning / freeing frames
- sched: support fragmenting IP packets as they come out of conntrack
- net: allow virtual netdevs to forward UDP L4 and fraglist GSO skbs
BPF:
- BPF switch from crude rlimit-based to memcg-based memory accounting
- BPF type format information for kernel modules and related tracing
enhancements
- BPF implement task local storage for BPF LSM
- allow the FENTRY/FEXIT/RAW_TP tracing programs to use
bpf_sk_storage
Protocols:
- mptcp: improve multiple xmit streams support, memory accounting and
many smaller improvements
- TLS: support CHACHA20-POLY1305 cipher
- seg6: add support for SRv6 End.DT4/DT6 behavior
- sctp: Implement RFC 6951: UDP Encapsulation of SCTP
- ppp_generic: add ability to bridge channels directly
- bridge: Connectivity Fault Management (CFM) support as is defined
in IEEE 802.1Q section 12.14.
Drivers:
- mlx5: make use of the new auxiliary bus to organize the driver
internals
- mlx5: more accurate port TX timestamping support
- mlxsw:
- improve the efficiency of offloaded next hop updates by using
the new nexthop object API
- support blackhole nexthops
- support IEEE 802.1ad (Q-in-Q) bridging
- rtw88: major bluetooth co-existance improvements
- iwlwifi: support new 6 GHz frequency band
- ath11k: Fast Initial Link Setup (FILS)
- mt7915: dual band concurrent (DBDC) support
- net: ipa: add basic support for IPA v4.5
Refactor:
- a few pieces of in_interrupt() cleanup work from Sebastian Andrzej
Siewior
- phy: add support for shared interrupts; get rid of multiple driver
APIs and have the drivers write a full IRQ handler, slight growth
of driver code should be compensated by the simpler API which also
allows shared IRQs
- add common code for handling netdev per-cpu counters
- move TX packet re-allocation from Ethernet switch tag drivers to a
central place
- improve efficiency and rename nla_strlcpy
- number of W=1 warning cleanups as we now catch those in a patchwork
build bot
Old code removal:
- wan: delete the DLCI / SDLA drivers
- wimax: move to staging
- wifi: remove old WDS wifi bridging support"
* tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1922 commits)
net: hns3: fix expression that is currently always true
net: fix proc_fs init handling in af_packet and tls
nfc: pn533: convert comma to semicolon
af_vsock: Assign the vsock transport considering the vsock address flags
af_vsock: Set VMADDR_FLAG_TO_HOST flag on the receive path
vsock_addr: Check for supported flag values
vm_sockets: Add VMADDR_FLAG_TO_HOST vsock flag
vm_sockets: Add flags field in the vsock address data structure
net: Disable NETIF_F_HW_TLS_TX when HW_CSUM is disabled
tcp: Add logic to check for SYN w/ data in tcp_simple_retransmit
net: mscc: ocelot: install MAC addresses in .ndo_set_rx_mode from process context
nfc: s3fwrn5: Release the nfc firmware
net: vxget: clean up sparse warnings
mlxsw: spectrum_router: Use eXtended mezzanine to offload IPv4 router
mlxsw: spectrum: Set KVH XLT cache mode for Spectrum2/3
mlxsw: spectrum_router_xm: Introduce basic XM cache flushing
mlxsw: reg: Add Router LPM Cache Enable Register
mlxsw: reg: Add Router LPM Cache ML Delete Register
mlxsw: spectrum_router_xm: Implement L-value tracking for M-index
mlxsw: reg: Add XM Router M Table Register
...
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