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[v5.15] INFO: task hung in ip6mr_sk_done
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May 27, 2024, 9:56:27 PM
May 27
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Hello,
syzbot found the following issue on:
HEAD commit: c61bd26ae81a Linux 5.15.160
git tree: linux-5.15.y
console output:
https://syzkaller.appspot.com/x/log.txt?x=10df2e3c980000
kernel config:
https://syzkaller.appspot.com/x/.config?x=235f0e81ca937c17
dashboard link:
https://syzkaller.appspot.com/bug?extid=f3fd3f2be965a2701ee6
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image:
https://storage.googleapis.com/syzbot-assets/d61a97eef8b9/disk-c61bd26a.raw.xz
vmlinux:
https://storage.googleapis.com/syzbot-assets/ab4908b4b59b/vmlinux-c61bd26a.xz
kernel image:
https://storage.googleapis.com/syzbot-assets/d818fd46802b/bzImage-c61bd26a.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by:
syzbot+f3fd3f...@syzkaller.appspotmail.com
INFO: task syz-executor.4:8485 blocked for more than 143 seconds.
Not tainted 5.15.160-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:26488 pid: 8485 ppid: 8142 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5030 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
schedule+0x11b/0x1f0 kernel/sched/core.c:6459
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6518
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
ip6mr_sk_done+0xa0/0x2a0 net/ipv6/ip6mr.c:1584
rawv6_close+0x60/0x80 net/ipv6/raw.c:1206
inet_release+0x174/0x1f0 net/ipv4/af_inet.c:434
__sock_release net/socket.c:649 [inline]
sock_close+0xcd/0x230 net/socket.c:1336
---
This report 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 issue. See:
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If the report is already addressed, let syzbot know by replying with:
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