linux-stable/net/packet
Eric Dumazet bf44077c1b af_packet: fix tracking issues in packet_do_bind()
It appears that my changes in packet_do_bind() were
slightly wrong.

syzbot found that calling bind() twice would trigger
a false positive.

Remove proto_curr/dev_curr variables and rewrite things
to be less confusing (like not having to use netdev_tracker_alloc(),
and instead use the standard dev_hold_track())

Fixes: f1d9268e06 ("net: add net device refcount tracker to struct packet_type")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20220107183953.3886647-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-01-07 19:11:55 -08:00
..
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
af_packet.c af_packet: fix tracking issues in packet_do_bind() 2022-01-07 19:11:55 -08:00
diag.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
internal.h net/packet: remove data races in fanout operations 2021-04-14 14:34:38 -07:00