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| author | Eric Dumazet <edumazet@google.com> | 2024-08-20 16:08:59 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-08-21 17:35:49 -0700 |
| commit | 2d5ff7e339d04622d8282661df36151906d0e1c7 (patch) | |
| tree | 7c555df7e6e3d2e51519885f279a1e6c41a080fe /drivers/gnss | |
| parent | da273b377ae0d9bd255281ed3c2adb228321687b (diff) | |
| download | linux-2d5ff7e339d04622d8282661df36151906d0e1c7.tar.gz linux-2d5ff7e339d04622d8282661df36151906d0e1c7.tar.bz2 linux-2d5ff7e339d04622d8282661df36151906d0e1c7.zip | |
ipv6: prevent possible UAF in ip6_xmit()
If skb_expand_head() returns NULL, skb has been freed
and the associated dst/idev could also have been freed.
We must use rcu_read_lock() to prevent a possible UAF.
Fixes: 0c9f227bee11 ("ipv6: use skb_expand_head in ip6_xmit")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Vasily Averin <vasily.averin@linux.dev>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20240820160859.3786976-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/gnss')
0 files changed, 0 insertions, 0 deletions