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authorLinus Torvalds <torvalds@linux-foundation.org>2018-04-09 17:04:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-09 17:04:10 -0700
commitc18bb396d3d261ebbb4efbc05129c5d354c541e4 (patch)
tree058a1413dd34fe4e1d9a998a43d56f3358b93e36 /net/sctp
parentfd3b36d275660c905da9900b078eea341847d5e4 (diff)
parenta2ac99905f1ea8b15997a6ec39af69aa28a3653b (diff)
downloadlinux-c18bb396d3d261ebbb4efbc05129c5d354c541e4.tar.bz2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller: 1) The sockmap code has to free socket memory on close if there is corked data, from John Fastabend. 2) Tunnel names coming from userspace need to be length validated. From Eric Dumazet. 3) arp_filter() has to take VRFs properly into account, from Miguel Fadon Perlines. 4) Fix oops in error path of tcf_bpf_init(), from Davide Caratti. 5) Missing idr_remove() in u32_delete_key(), from Cong Wang. 6) More syzbot stuff. Several use of uninitialized value fixes all over, from Eric Dumazet. 7) Do not leak kernel memory to userspace in sctp, also from Eric Dumazet. 8) Discard frames from unused ports in DSA, from Andrew Lunn. 9) Fix DMA mapping and reset/failover problems in ibmvnic, from Thomas Falcon. 10) Do not access dp83640 PHY registers prematurely after reset, from Esben Haabendal. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (46 commits) vhost-net: set packet weight of tx polling to 2 * vq size net: thunderx: rework mac addresses list to u64 array inetpeer: fix uninit-value in inet_getpeer dp83640: Ensure against premature access to PHY registers after reset devlink: convert occ_get op to separate registration ARM: dts: ls1021a: Specify TBIPA register address net/fsl_pq_mdio: Allow explicit speficition of TBIPA address ibmvnic: Do not reset CRQ for Mobility driver resets ibmvnic: Fix failover case for non-redundant configuration ibmvnic: Fix reset scheduler error handling ibmvnic: Zero used TX descriptor counter on reset ibmvnic: Fix DMA mapping mistakes tipc: use the right skb in tipc_sk_fill_sock_diag() sctp: sctp_sockaddr_af must check minimal addr length for AF_INET6 net: dsa: Discard frames from unused ports sctp: do not leak kernel memory to user space soreuseport: initialise timewait reuseport field ipv4: fix uninit-value in ip_route_output_key_hash_rcu() dccp: initialize ireq->ir_mark net: fix uninit-value in __hw_addr_add_ex() ...
Diffstat (limited to 'net/sctp')
-rw-r--r--net/sctp/ipv6.c4
-rw-r--r--net/sctp/socket.c13
2 files changed, 11 insertions, 6 deletions
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 6dd976c8ab61..31083b5035ec 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -757,8 +757,10 @@ static int sctp_v6_addr_to_user(struct sctp_sock *sp, union sctp_addr *addr)
sctp_v6_map_v4(addr);
}
- if (addr->sa.sa_family == AF_INET)
+ if (addr->sa.sa_family == AF_INET) {
+ memset(addr->v4.sin_zero, 0, sizeof(addr->v4.sin_zero));
return sizeof(struct sockaddr_in);
+ }
return sizeof(struct sockaddr_in6);
}
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 2a2e094560de..80835ac26d2c 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -357,11 +357,14 @@ static struct sctp_af *sctp_sockaddr_af(struct sctp_sock *opt,
if (!opt->pf->af_supported(addr->sa.sa_family, opt))
return NULL;
- /* V4 mapped address are really of AF_INET family */
- if (addr->sa.sa_family == AF_INET6 &&
- ipv6_addr_v4mapped(&addr->v6.sin6_addr) &&
- !opt->pf->af_supported(AF_INET, opt))
- return NULL;
+ if (addr->sa.sa_family == AF_INET6) {
+ if (len < SIN6_LEN_RFC2133)
+ return NULL;
+ /* V4 mapped address are really of AF_INET family */
+ if (ipv6_addr_v4mapped(&addr->v6.sin6_addr) &&
+ !opt->pf->af_supported(AF_INET, opt))
+ return NULL;
+ }
/* If we get this far, af is valid. */
af = sctp_get_af_specific(addr->sa.sa_family);