How about this patch? If it is appropriate, I will send a real one.
mm/slub: fix slab double-free when release callback of sysfs trigger
Signed-off-by: Yanfei Xu
diff --git a/mm/slub.c b/mm/slub.c
index 4148235ba554..d10c4fbf8c84 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -5653,7 +5653,
On 10/16/20 12:10 PM, Hillf Danton wrote:
On Fri, 16 Oct 2020 11:15:27 +0800 Yanfei Xu wrote:
On 10/14/20 8:31 PM, Hillf Danton wrote:
On Wed, 14 Oct 2020 15:17:31 +0800
From: Yanfei Xu
Locking slock-AF_BLUETOOTH-BTPROTO_SCO may happen in process context or
BH context. If in process cont
On 10/14/20 8:31 PM, Hillf Danton wrote:
On Wed, 14 Oct 2020 15:17:31 +0800
From: Yanfei Xu
Locking slock-AF_BLUETOOTH-BTPROTO_SCO may happen in process context or
BH context. If in process context, we should use lock_sock(). As blow
warning, sco_conn_del() is called in process context, so
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit:e8878ab8 Merge tag 'spi-fix-v5.9-rc4' of
git://git.kernel...
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1213075990
> kernel config:
https://syzkaller.appspot.com/x/.co
