syzbot

watchdog: BUG: soft lockup - CPU#0 stuck for 246s! [syz-executor237:478]
Modules linked in:
CPU: 0 PID: 478 Comm: syz-executor237 Not tainted 6.1.141-syzkaller-00038-ge2deb0b42a3a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:csd_lock_wait kernel/smp.c:453 [inline]
RIP: 0010:smp_call_function_many_cond+0x872/0x960 kernel/smp.c:998
Code: 41 8b 1f 89 de 83 e6 01 31 ff e8 39 66 09 00 83 e3 01 48 bb 00 00 00 00 00 fc ff df 75 0a e8 05 62 09 00 e9 38 ff ff ff f3 90 <41> 0f b6 44 1d 00 84 c0 75 14 41 f7 07 01 00 00 00 0f 84 1a ff ff
RSP: 0018:ffffc9000162f500 EFLAGS: 00000293
RAX: ffffffff8166958e RBX: dffffc0000000000 RCX: ffff88811faed100
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000162f638 R08: dffffc0000000000 R09: ffffed103ee07213
R10: 0000000000000000 R11: ffffffff81341b30 R12: 1ffff1103ee07210
R13: 1ffff1103ee2789d R14: 0000000000000001 R15: ffff8881f713c4e8
FS:  000055555ccc63c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000104291000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 on_each_cpu_cond_mask+0x43/0x80 kernel/smp.c:1166
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:1574 [inline]
 text_poke_bp_batch+0x1cc/0x580 arch/x86/kernel/alternative.c:1774
 text_poke_bp+0xc8/0x140 arch/x86/kernel/alternative.c:2011
 __static_call_transform+0x318/0x500 arch/x86/kernel/static_call.c:109
 arch_static_call_transform+0xd3/0x280 arch/x86/kernel/static_call.c:161
 __static_call_update+0xef/0x5c0 kernel/static_call_inline.c:136
 tracepoint_update_call kernel/tracepoint.c:317 [inline]
 tracepoint_remove_func kernel/tracepoint.c:441 [inline]
 tracepoint_probe_unregister+0x817/0x8b0 kernel/tracepoint.c:551
 bpf_probe_unregister+0x61/0x70 kernel/trace/bpf_trace.c:2359
 bpf_raw_tp_link_release+0x63/0x90 kernel/bpf/syscall.c:3170
 bpf_link_free+0x13a/0x390 kernel/bpf/syscall.c:2739
 bpf_link_put kernel/bpf/syscall.c:2765 [inline]
 bpf_link_release+0x15f/0x170 kernel/bpf/syscall.c:2774
 __fput+0x1fc/0x8f0 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x1db/0x240 kernel/task_work.c:203
 ptrace_notify+0x221/0x250 kernel/signal.c:2377
 ptrace_report_syscall include/linux/ptrace.h:424 [inline]
 ptrace_report_syscall_exit include/linux/ptrace.h:486 [inline]
 syscall_exit_work+0x84/0x140 kernel/entry/common.c:258
 syscall_exit_to_user_mode_prepare+0x1c/0x20 kernel/entry/common.c:285
 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
 syscall_exit_to_user_mode+0xd/0x30 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8b3774910a
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 43 82 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 a3 82 02 00 8b 44 24
RSP: 002b:00007ffe2ee75290 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f8b3774910a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 00007f8b37709590 R08: 002d54c011289928 R09: 00007f8b377991c2
R10: 00007ffe2ee752e0 R11: 0000000000000293 R12: 00007ffe2ee75370
R13: 0000000000035e6b R14: 0000000000035e9d R15: 00007ffe2ee75300
 </TASK>