watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz.4.890:6701]
Modules linked in:
irq event stamp: 4884
hardirqs last  enabled at (4883): [<ffff8000111a3bac>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline]
hardirqs last  enabled at (4883): [<ffff8000111a3bac>] exit_to_kernel_mode+0xe0/0x168 arch/arm64/kernel/entry-common.c:91
hardirqs last disabled at (4884): [<ffff8000111a3e04>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (334): [<ffff80000819d0d8>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (334): [<ffff80000819d0d8>] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:586
softirqs last disabled at (313): [<ffff80000819d6dc>] __do_softirq kernel/softirq.c:592 [inline]
softirqs last disabled at (313): [<ffff80000819d6dc>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (313): [<ffff80000819d6dc>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (313): [<ffff80000819d6dc>] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:641
CPU: 1 PID: 6701 Comm: syz.4.890 Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : csd_lock_wait kernel/smp.c:440 [inline]
pc : smp_call_function_many_cond+0xe00/0xeb0 kernel/smp.c:969
lr : csd_lock_wait kernel/smp.c:440 [inline]
lr : smp_call_function_many_cond+0xe18/0xeb0 kernel/smp.c:969
sp : ffff80001fad6a70
x29: ffff80001fad6ac0 x28: ffff80001414d000 x27: 0000000000000000
x26: 0000000000000011 x25: ffff0001a1130940 x24: ffff800014151000
x23: 1fffe00034226128 x22: dfff800000000000 x21: ffff0001a1115dc8
x20: ffff80001433d380 x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000002 x16: ffff8000111a5644 x15: 0000000000000001
x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000080000
x11: 000000000007ffff x10: ffff800021d7c000 x9 : 0000000000000000
x8 : 0000000000000011 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000004 x4 : 0000000000000000 x3 : ffff8000083cc124
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:440 [inline]
 smp_call_function_many_cond+0xe00/0xeb0 kernel/smp.c:969
 smp_call_function_many kernel/smp.c:993 [inline]
 smp_call_function kernel/smp.c:1015 [inline]
 kick_all_cpus_sync+0x40/0xa0 kernel/smp.c:1159
 flush_icache_range arch/arm64/include/asm/cacheflush.h:103 [inline]
 bpf_flush_icache arch/arm64/net/bpf_jit_comp.c:987 [inline]
 bpf_int_jit_compile+0x484/0xa44 arch/arm64/net/bpf_jit_comp.c:1110
 bpf_prog_select_runtime+0x634/0x8fc kernel/bpf/core.c:1934
 bpf_migrate_filter net/core/filter.c:1307 [inline]
 bpf_prepare_filter+0xd58/0xeb4 net/core/filter.c:1355
 bpf_prog_create+0x100/0x1c0 net/core/filter.c:1395
 __bpf_mt_check_bytecode net/netfilter/xt_bpf.c:35 [inline]
 bpf_mt_check+0xd4/0x198 net/netfilter/xt_bpf.c:68
 xt_check_match+0x314/0x8a0 net/netfilter/x_tables.c:523
 check_match net/ipv6/netfilter/ip6_tables.c:490 [inline]
 find_check_match net/ipv6/netfilter/ip6_tables.c:507 [inline]
 find_check_entry net/ipv6/netfilter/ip6_tables.c:558 [inline]
 translate_table+0xfa4/0x1850 net/ipv6/netfilter/ip6_tables.c:735
 do_replace net/ipv6/netfilter/ip6_tables.c:1156 [inline]
 do_ip6t_set_ctl+0xa10/0xe00 net/ipv6/netfilter/ip6_tables.c:1646
 nf_setsockopt+0x270/0x290 net/netfilter/nf_sockopt.c:101
 ipv6_setsockopt+0x1a18/0x36dc net/ipv6/ipv6_sockglue.c:1014
 udpv6_setsockopt+0xa8/0xc0 net/ipv6/udp.c:1684
 sock_common_setsockopt+0xb0/0xcc net/core/sock.c:3446
 __sys_setsockopt+0x2f8/0x4b0 net/socket.c:2203
 __do_sys_setsockopt net/socket.c:2214 [inline]
 __se_sys_setsockopt net/socket.c:2211 [inline]
 __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2211
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584