[v6.1] INFO: task hung in bpf_xdp_link_attach

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 4078fa637fcd Linux 6.1.91
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=14d5beb2980000
kernel config: https://syzkaller.appspot.com/x/.config?x=715ba80acfd3def4
dashboard link: https://syzkaller.appspot.com/bug?extid=38b569f5b74a083b5ae8
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/2443dfe91c62/disk-4078fa63.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/12dbc2af3348/vmlinux-4078fa63.xz
kernel image: https://storage.googleapis.com/syzbot-assets/da3589238e32/bzImage-4078fa63.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+38b569...@syzkaller.appspotmail.com

INFO: task syz-executor.4:6077 blocked for more than 143 seconds.
Not tainted 6.1.91-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24512 pid:6077 ppid:5575 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747
bpf_xdp_link_attach+0xdb/0x460 net/core/dev.c:9468
link_create+0x619/0xa20 kernel/bpf/syscall.c:4642
__sys_bpf+0x5aa/0x6c0 kernel/bpf/syscall.c:5075
__do_sys_bpf kernel/bpf/syscall.c:5109 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5107 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5107
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f6a3507cee9
RSP: 002b:00007f6a35d7b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f6a351ac050 RCX: 00007f6a3507cee9
RDX: 0000000000000010 RSI: 0000000020000000 RDI: 000000000000001c
RBP: 00007f6a350c949e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f6a351ac050 R15: 00007ffd36c7ad68
</TASK>
INFO: task syz-executor.2:6083 blocked for more than 143 seconds.


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