Merge branch 'l2tp-fix-some-races-in-session-deletion'

Browse source

Guillaume Nault says:

====================
l2tp: fix some races in session deletion

L2TP provides several interfaces for deleting sessions. Using two of
them concurrently can lead to use-after-free bugs.

Patch #2 uses a flag to prevent double removal of L2TP sessions.
Patch #1 fixes a bug found in the way. Fixing this bug is also
necessary for patch #2 to handle all cases.

This issue is similar to the tunnel deletion bug being worked on by
Sabrina: https://patchwork.ozlabs.org/patch/814173/
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

David S. Miller 2017-09-25 14:44:41 -07:00

parent 5c346525d3 b228a94066

commit 016576d531

3 changed files with 11 additions and 4 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

6

net/l2tp/l2tp_core.c

View file

1

net/l2tp/l2tp_core.h

View file

8

net/l2tp/l2tp_ppp.c

View file