watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz.5.2585:12712]
Modules linked in:
irq event stamp: 4838
hardirqs last  enabled at (4837): [<ffff800011917454>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline]
hardirqs last  enabled at (4837): [<ffff800011917454>] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94
hardirqs last disabled at (4838): [<ffff8000119154d0>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline]
hardirqs last disabled at (4838): [<ffff8000119154d0>] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:486
softirqs last  enabled at (464): [<ffff8000081a8dc0>] softirq_handle_end kernel/softirq.c:421 [inline]
softirqs last  enabled at (464): [<ffff8000081a8dc0>] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:606
softirqs last disabled at (443): [<ffff800008020164>] __do_softirq+0x14/0x20 kernel/softirq.c:612
CPU: 0 PID: 12712 Comm: syz.5.2585 Not tainted 6.1.140-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : csd_lock_wait kernel/smp.c:424 [inline]
pc : smp_call_function_many_cond+0x1384/0x1460 kernel/smp.c:998
lr : csd_lock_wait kernel/smp.c:424 [inline]
lr : smp_call_function_many_cond+0x139c/0x1460 kernel/smp.c:998
sp : ffff8000228d75e0
x29: ffff8000228d7640 x28: 0000000000000001 x27: ffff80001506d000
x26: 0000000000000011 x25: ffff800015071140 x24: ffff00019f72c140
x23: 1fffe00033ee5828 x22: dfff800000000000 x21: ffff00019f7519c8
x20: 0000000000000001 x19: ffff800015269da0 x18: ffff800020530059
x17: 00000000000000ac x16: ffff8000082d1c1c x15: 0000000000000002
x14: 0000000000000001 x13: 0000000000ff0100 x12: 0000000000080000
x11: 000000000007ffff x10: ffff800033ace000 x9 : 0000000000000000
x8 : 0000000000000011 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000006 x4 : 0000000000000000 x3 : ffff8000083ffc04
x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 __cmpwait_case_32 arch/arm64/include/asm/cmpxchg.h:252 [inline]
 __cmpwait arch/arm64/include/asm/cmpxchg.h:278 [inline]
 csd_lock_wait kernel/smp.c:424 [inline]
 smp_call_function_many_cond+0x1384/0x1460 kernel/smp.c:998
 smp_call_function_many kernel/smp.c:1022 [inline]
 smp_call_function kernel/smp.c:1044 [inline]
 kick_all_cpus_sync+0x40/0xa0 kernel/smp.c:1190
 flush_icache_range arch/arm64/include/asm/cacheflush.h:103 [inline]
 bpf_flush_icache arch/arm64/net/bpf_jit_comp.c:1499 [inline]
 bpf_int_jit_compile+0x940/0x104c arch/arm64/net/bpf_jit_comp.c:1629
 bpf_prog_select_runtime+0x3cc/0x69c kernel/bpf/core.c:2234
 bpf_migrate_filter net/core/filter.c:1309 [inline]
 bpf_prepare_filter+0xd58/0xeb4 net/core/filter.c:1357
 __get_filter+0x2cc/0x414 net/core/filter.c:1526
 sk_attach_filter+0x2c/0x140 net/core/filter.c:1541
 sk_setsockopt+0x14b8/0x2428 net/core/sock.c:1299
 sock_setsockopt+0x68/0x80 net/core/sock.c:1550
 __sys_setsockopt+0x32c/0x504 net/socket.c:2284
 __do_sys_setsockopt net/socket.c:2299 [inline]
 __se_sys_setsockopt net/socket.c:2296 [inline]
 __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2296
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585