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| author | Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> | 2021-10-19 20:27:26 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-26 11:40:31 +0100 |
| commit | aa88387bb8b082de70973ee6b40ee71322b97e34 (patch) | |
| tree | 7dcbd296baf7756b0633a7ba05011dfc154e2697 /scripts/cleanfile | |
| parent | cb7c438911a7a34959dd1e0f41b3c9a0812e6595 (diff) | |
smackfs: use netlbl_cfg_cipsov4_del() for deleting cipso_v4_doi
[ Upstream commit 0934ad42bb2c5df90a1b9de690f93de735b622fe ]
syzbot is reporting UAF at cipso_v4_doi_search() [1], for smk_cipso_doi()
is calling kfree() without removing from the cipso_v4_doi_list list after
netlbl_cfg_cipsov4_map_add() returned an error. We need to use
netlbl_cfg_cipsov4_del() in order to remove from the list and wait for
RCU grace period before kfree().
Link: https://syzkaller.appspot.com/bug?extid=93dba5b91f0fed312cbd [1]
Reported-by: syzbot <syzbot+93dba5b91f0fed312cbd@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes: 6c2e8ac0953fccdd ("netlabel: Update kernel configuration API")
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'scripts/cleanfile')
0 files changed, 0 insertions, 0 deletions