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(parent: bcbc1b1) | patch
udp: move udp->gro_enabled to udp->udp_flags
authorEric Dumazet <edumazet@google.com>
Tue, 12 Sep 2023 09:17:24 +0000 (09:17 +0000)
committerPaolo Abeni <pabeni@redhat.com>
Thu, 14 Sep 2023 14:16:36 +0000 (16:16 +0200)
commite1dc0615c6b08ef36414f08c011965b8fb56198b
tree146013171a93e03ec8d322c189bd82fc615922abtree | snapshot
parentbcbc1b1de884647aa0318bf74eb7f293d72a1e40commit | diff
udp: move udp->gro_enabled to udp->udp_flags

syzbot reported that udp->gro_enabled can be read locklessly.
Use one atomic bit from udp->udp_flags.

Fixes: e20cf8d3f1f7 ("udp: implement GRO for plain UDP sockets.")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
include/linux/udp.h diff | blob | history
net/ipv4/udp.c diff | blob | history
net/ipv4/udp_offload.c diff | blob | history
net/ipv6/udp.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git