syzbot
unread,May 14, 2020, 4:18:12 PM5/14/20Sign in to reply to author
Sign in to forward
You do not have permission to delete messages in this group
Sign in to report message
Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message
to andre...@google.com, laurent....@ideasonboard.com, linux-...@vger.kernel.org, linux...@vger.kernel.org, linu...@vger.kernel.org, mch...@kernel.org, sakari...@linux.intel.com, syzkall...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 059e7e0f usb: raw-gadget: fix typo in uapi headers
git tree:
https://github.com/google/kasan.git usb-fuzzer
console output:
https://syzkaller.appspot.com/x/log.txt?x=10e77dfa100000
kernel config:
https://syzkaller.appspot.com/x/.config?x=b484a6e53b2b06ad
dashboard link:
https://syzkaller.appspot.com/bug?extid=dd320d114deb3f5bb79b
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro:
https://syzkaller.appspot.com/x/repro.syz?x=16cd44ac100000
C reproducer:
https://syzkaller.appspot.com/x/repro.c?x=17b12b92100000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by:
syzbot+dd320d...@syzkaller.appspotmail.com
uvcvideo 1-1:0.0: Entity type for entity Processing 1 was not initialized!
uvcvideo 1-1:0.0: Entity type for entity Input 255 was not initialized!
------------[ cut here ]------------
WARNING: CPU: 0 PID: 163 at drivers/media/mc/mc-entity.c:669 media_create_pad_link+0x500/0x650 drivers/media/mc/mc-entity.c:669
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 163 Comm: kworker/0:3 Not tainted 5.7.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0xef/0x16e lib/dump_stack.c:118
panic+0x2aa/0x6e1 kernel/panic.c:221
__warn.cold+0x2f/0x30 kernel/panic.c:582
report_bug+0x27b/0x2f0 lib/bug.c:195
fixup_bug arch/x86/kernel/traps.c:175 [inline]
fixup_bug arch/x86/kernel/traps.c:170 [inline]
do_error_trap+0x12b/0x1e0 arch/x86/kernel/traps.c:267
do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286
invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:media_create_pad_link+0x500/0x650 drivers/media/mc/mc-entity.c:669
Code: bc ea ff ff ff eb da e8 ee e0 37 fd 0f 0b 41 bc ea ff ff ff eb cb e8 df e0 37 fd 0f 0b 41 bc ea ff ff ff eb bc e8 d0 e0 37 fd <0f> 0b 41 bc ea ff ff ff eb ad e8 c1 e0 37 fd 0f 0b 41 bc ea ff ff
RSP: 0018:ffff8881ce48ef70 EFLAGS: 00010293
RAX: ff
---
This bug is generated by a bot. It may contain errors.
See
https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at
syzk...@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this bug, for details see:
https://goo.gl/tpsmEJ#testing-patches