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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-05-25 20:24:28 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-05-25 20:24:28 -0700 |
| commit | bc2dbc5420e82560e650f8531ceca597441ca171 (patch) | |
| tree | ac93448eaba1fe89fa007f9945f7e507b97dba8e /kernel | |
| parent | 03250e1028057173b212341015d5fbf53327042c (diff) | |
| parent | 3f1959721558a976aaf9c2024d5bc884e6411bf7 (diff) | |
| download | linux-bc2dbc5420e82560e650f8531ceca597441ca171.tar.bz2 | |
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"16 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
kasan: fix memory hotplug during boot
kasan: free allocated shadow memory on MEM_CANCEL_ONLINE
checkpatch: fix macro argument precedence test
init/main.c: include <linux/mem_encrypt.h>
kernel/sys.c: fix potential Spectre v1 issue
mm/memory_hotplug: fix leftover use of struct page during hotplug
proc: fix smaps and meminfo alignment
mm: do not warn on offline nodes unless the specific node is explicitly requested
mm, memory_hotplug: make has_unmovable_pages more robust
mm/kasan: don't vfree() nonexistent vm_area
MAINTAINERS: change hugetlbfs maintainer and update files
ipc/shm: fix shmat() nil address after round-down when remapping
Revert "ipc/shm: Fix shmat mmap nil-page protection"
idr: fix invalid ptr dereference on item delete
ocfs2: revert "ocfs2/o2hb: check len for bio_add_page() to avoid getting incorrect bio"
mm: fix nr_rotate_swap leak in swapon() error case
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sys.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/sys.c b/kernel/sys.c index b0eee418ee0d..d1b2b8d934bb 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -71,6 +71,9 @@ #include <asm/io.h> #include <asm/unistd.h> +/* Hardening for Spectre-v1 */ +#include <linux/nospec.h> + #include "uid16.h" #ifndef SET_UNALIGN_CTL @@ -1453,6 +1456,7 @@ SYSCALL_DEFINE2(old_getrlimit, unsigned int, resource, if (resource >= RLIM_NLIMITS) return -EINVAL; + resource = array_index_nospec(resource, RLIM_NLIMITS); task_lock(current->group_leader); x = current->signal->rlim[resource]; task_unlock(current->group_leader); @@ -1472,6 +1476,7 @@ COMPAT_SYSCALL_DEFINE2(old_getrlimit, unsigned int, resource, if (resource >= RLIM_NLIMITS) return -EINVAL; + resource = array_index_nospec(resource, RLIM_NLIMITS); task_lock(current->group_leader); r = current->signal->rlim[resource]; task_unlock(current->group_leader); |