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| H A D | ip6_output.c | diff 68c8ba16ab712eb709c6bab80ff151079d11d97a Mon May 06 09:11:29 CDT 2024 Shigeru Yoshida <syoshida@redhat.com> ipv6: Fix potential uninit-value access in __ip6_make_skb()
[ Upstream commit 4e13d3a9c25b7080f8a619f961e943fe08c2672c ]
As it was done in commit fc1092f51567 ("ipv4: Fix uninit-value access in
__ip_make_skb()") for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6->flowi6_flags
instead of testing HDRINCL on the socket to avoid a race condition which
causes uninit-value access.
Fixes: ea30388baebc ("ipv6: Fix an uninit variable access bug in __ip6_make_skb()")
Signed-off-by: Shigeru Yoshida <syoshida@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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