From: Edward Adam Davis <eadavis@qq.com>
To: syzbot+16062f26c6480975e5ed@syzkaller.appspotmail.com
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [media?] KASAN: slab-use-after-free Read in em28xx_release_resources
Date: Fri, 20 Mar 2026 14:15:13 +0800 [thread overview]
Message-ID: <tencent_CB5DB219664FDF8DB525998DCD1262DDF707@qq.com> (raw)
In-Reply-To: <69608280.050a0220.1c677c.03b0.GAE@google.com>
#syz test
diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c
index b0c184f237a7..563b4267588e 100644
--- a/drivers/media/usb/em28xx/em28xx-video.c
+++ b/drivers/media/usb/em28xx/em28xx-video.c
@@ -2147,7 +2147,7 @@ static int em28xx_v4l2_open(struct file *filp)
video_device_node_name(vdev), v4l2_type_names[fh_type],
v4l2->users);
- if (mutex_lock_interruptible(&dev->lock))
+ if (!mutex_trylock(&dev->lock))
return -ERESTARTSYS;
ret = v4l2_fh_open(filp);
next prev parent reply other threads:[~2026-03-20 6:16 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-02 7:49 [syzbot] [media?] KASAN: slab-use-after-free Read in em28xx_release_resources syzbot
2026-01-09 4:22 ` syzbot
2026-01-09 7:55 ` [PATCH] em28xx: test xiaopeitux
2026-01-09 9:42 ` [syzbot] [media?] KASAN: slab-use-after-free Read in em28xx_release_resources syzbot
2026-01-10 3:22 ` Hillf Danton
2026-01-10 3:50 ` syzbot
2026-01-10 8:50 ` Hillf Danton
2026-01-10 10:13 ` syzbot
2026-01-11 0:23 ` Hillf Danton
2026-01-11 1:51 ` syzbot
2026-01-11 4:46 ` Edward Adam Davis
2026-01-11 5:14 ` syzbot
2026-01-11 5:29 ` [PATCH 1/2] media: em28xx-video: add the unregister of video/VBI entity Edward Adam Davis
2026-01-11 15:31 ` Laurent Pinchart
2026-03-16 14:03 ` Hans Verkuil
2026-03-20 11:45 ` Edward Adam Davis
2026-03-20 12:07 ` hverkuil+cisco
2026-03-20 6:15 ` Edward Adam Davis [this message]
2026-03-20 10:59 ` [syzbot] [media?] KASAN: slab-use-after-free Read in em28xx_release_resources syzbot
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