diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2023-10-13 01:17:46 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-10-13 02:07:34 +0200 |
| commit | 0e6bb5b7f4c8e6665e76bdafce37ad4a8daf83c5 (patch) | |
| tree | 6f71fc5628f01bcf9d2dc6eceb3000ee4e73c79a /net/packet | |
| parent | net: gso_test: fix build with gcc-12 and earlier (diff) | |
| parent | Merge tag 'net-6.6-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netd... (diff) | |
| download | linux-0e6bb5b7f4c8e6665e76bdafce37ad4a8daf83c5.tar.xz linux-0e6bb5b7f4c8e6665e76bdafce37ad4a8daf83c5.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
No conflicts.
Adjacent changes:
kernel/bpf/verifier.c
829955981c55 ("bpf: Fix verifier log for async callback return values")
a923819fb2c5 ("bpf: Treat first argument as return value for bpf_throw")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/packet')
| -rw-r--r-- | net/packet/af_packet.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 8f97648d652f..a84e00b5904b 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -3607,7 +3607,12 @@ static int packet_getname(struct socket *sock, struct sockaddr *uaddr, if (dev) { sll->sll_hatype = dev->type; sll->sll_halen = dev->addr_len; - memcpy(sll->sll_addr_flex, dev->dev_addr, dev->addr_len); + + /* Let __fortify_memcpy_chk() know the actual buffer size. */ + memcpy(((struct sockaddr_storage *)sll)->__data + + offsetof(struct sockaddr_ll, sll_addr) - + offsetofend(struct sockaddr_ll, sll_family), + dev->dev_addr, dev->addr_len); } else { sll->sll_hatype = 0; /* Bad: we have no ARPHRD_UNSPEC */ sll->sll_halen = 0; |