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| author |   Sabrina Dubroca <sd@queasysnail.net> | 2017-12-31 16:18:56 +0100 |
|---|---|---|
| committer |   Steffen Klassert <steffen.klassert@secunet.com> | 2017-12-31 16:29:24 +0100 |
| commit | 2f10a61cee8fdb9f8da90f5db687e1862b22cf06 (patch) | |
| tree | ce6216dcf1b159f1c63a130778fe81105a3bd8fb /net/xfrm/xfrm_input.c | |
| parent | af_key: fix buffer overread in parse_exthdrs() (diff) | |
| download | linux-dev-2f10a61cee8fdb9f8da90f5db687e1862b22cf06.tar.xz linux-dev-2f10a61cee8fdb9f8da90f5db687e1862b22cf06.zip | |
xfrm: fix rcu usage in xfrm_get_type_offload
request_module can sleep, thus we cannot hold rcu_read_lock() while
calling it. The function also jumps back and takes rcu_read_lock()
again (in xfrm_state_get_afinfo()), resulting in an imbalance.
This codepath is triggered whenever a new offloaded state is created.
Fixes: ffdb5211da1c ("xfrm: Auto-load xfrm offload modules")
Reported-by: syzbot+ca425f44816d749e8eb49755567a75ee48cf4a30@syzkaller.appspotmail.com
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/xfrm/xfrm_input.c')
0 files changed, 0 insertions, 0 deletions