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linux-stable/net/xfrm
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Xin Long 4d33ab08c0 xfrm: set dst dev to blackhole_netdev instead of loopback_dev in ifdown 
The global blackhole_netdev has replaced pernet loopback_dev to become the
one given to the object that holds an netdev when ifdown in many places of
ipv4 and ipv6 since commit 8d7017fd62 ("blackhole_netdev: use
blackhole_netdev to invalidate dst entries").

Especially after commit faab39f63c ("net: allow out-of-order netdev
unregistration"), it's no longer safe to use loopback_dev that may be
freed before other netdev.

This patch is to set dst dev to blackhole_netdev instead of loopback_dev
in ifdown.

v1->v2:
  - add Fixes tag as Eric suggested.

Fixes: faab39f63c ("net: allow out-of-order netdev unregistration")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/e8c87482998ca6fcdab214f5a9d582899ec0c648.1652665047.git.lucien.xin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 		2022-05-17 11:02:07 +02:00
..
Kconfig xfrm/compat: Add 32=>64-bit messages translator 2020-09-24 08:53:03 +02:00
Makefile xfrm: Provide API to register translator module 2020-09-24 08:53:03 +02:00
espintcp.c espintcp: restore IP CB before handing the packet to xfrm 2020-08-17 15:58:04 +02:00
xfrm_algo.c xfrm: Add support for SM4 symmetric cipher algorithm 2021-12-23 09:32:51 +01:00
xfrm_compat.c xfrm: rate limit SA mapping change message to user space 2021-12-23 09:32:51 +01:00
xfrm_device.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ 2022-03-19 14:49:08 +00:00
xfrm_hash.c
…
xfrm_hash.h xfrm: add state hashtable keyed by seq 2021-05-14 13:52:01 +02:00
xfrm_inout.h
…
xfrm_input.c xfrm: update SA curlft.use_time 2021-12-23 09:32:50 +01:00
xfrm_interface.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-03-10 17:16:56 -08:00
xfrm_ipcomp.c net: xfrm: Fix end of loop tests for list_for_each_entry 2021-07-26 12:26:28 +02:00
xfrm_output.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-01-09 17:00:17 -08:00
xfrm_policy.c xfrm: set dst dev to blackhole_netdev instead of loopback_dev in ifdown 2022-05-17 11:02:07 +02:00
xfrm_proc.c
…
xfrm_replay.c xfrm: replay: remove last replay indirection 2021-06-21 09:55:06 +02:00
xfrm_state.c Revert "xfrm: xfrm_state_mtu should return at least 1280 for ipv6" 2022-01-27 07:34:06 +01:00
xfrm_sysctl.c
…
xfrm_user.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ 2022-03-19 14:49:08 +00:00