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[v5.15] INFO: task hung in ip_setsockopt
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May 24, 2024, 1:44:28 AM
May 24
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Hello,
syzbot found the following issue on:
HEAD commit: 83655231580b Linux 5.15.159
git tree: linux-5.15.y
console output:
https://syzkaller.appspot.com/x/log.txt?x=16c53014980000
kernel config:
https://syzkaller.appspot.com/x/.config?x=ea870d7ee19c0a5c
dashboard link:
https://syzkaller.appspot.com/bug?extid=76442c3ef3a2bec4d0a0
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/d5444b7453a0/disk-83655231.raw.xz
vmlinux:
https://storage.googleapis.com/syzbot-assets/76ae736a43a3/vmlinux-83655231.xz
kernel image:
https://storage.googleapis.com/syzbot-assets/2540e00ba747/bzImage-83655231.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by:
syzbot+76442c...@syzkaller.appspotmail.com
INFO: task syz-executor.2:7416 blocked for more than 143 seconds.
Not tainted 5.15.159-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28824 pid: 7416 ppid: 3526 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
do_ip_setsockopt net/ipv4/ip_sockglue.c:951 [inline]
ip_setsockopt+0x4ff/0x3fb0 net/ipv4/ip_sockglue.c:1430
---
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
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