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(parent: 3eae0f4) | patch
net/packet: convert po->auxdata to an atomic flag
authorEric Dumazet <edumazet@google.com>
Thu, 16 Mar 2023 01:10:08 +0000 (01:10 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 11 May 2023 14:03:18 +0000 (23:03 +0900)
commit382310d9c82e07d8328e9c9d35a96922e22afd32
treef74bdada93c69eef6de6c00ef82a082e5fbbe7eatree | snapshot
parent3eae0f4c3129d728b280dad4510f0b37f0b2069ecommit | diff
net/packet: convert po->auxdata to an atomic flag

[ Upstream commit fd53c297aa7b077ae98a3d3d2d3aa278a1686ba6 ]

po->auxdata can be read while another thread
is changing its value, potentially raising KCSAN splat.

Convert it to PACKET_SOCK_AUXDATA flag.

Fixes: 8dc419447415 ("[PACKET]: Add optional checksum computation for recvmsg")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
net/packet/af_packet.c diff | blob | history
net/packet/diag.c diff | blob | history
net/packet/internal.h diff | blob | history
Domain: System / Kernel;