watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz.1.694:7608]
Modules linked in:
irq event stamp: 214
hardirqs last  enabled at (213): [<ffff8000867cc31c>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline]
hardirqs last  enabled at (213): [<ffff8000867cc31c>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:198
hardirqs last disabled at (214): [<ffff8000867a7afc>] __el1_irq arch/arm64/kernel/entry-common.c:506 [inline]
hardirqs last disabled at (214): [<ffff8000867a7afc>] el1_interrupt+0x28/0x60 arch/arm64/kernel/entry-common.c:522
softirqs last  enabled at (200): [<ffff800080309898>] softirq_handle_end kernel/softirq.c:468 [inline]
softirqs last  enabled at (200): [<ffff800080309898>] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650
softirqs last disabled at (195): [<ffff8000800204b0>] __do_softirq+0x14/0x20 kernel/softirq.c:656
CPU: 0 UID: 0 PID: 7608 Comm: syz.1.694 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
pc : _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:198
lr : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline]
lr : _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:198
sp : ffff8000932f7570
x29: ffff8000932f7570 x28: 0000000000000c00 x27: 00000000000000a0
x26: ffff0000f3636c80 x25: 0000000000000080 x24: ffff0001a507fe80
x23: 0000000000000000 x22: 000000005d0dd6e8 x21: 0000000000000000
x20: ffff800088f270d0 x19: 0000000000000000 x18: 000000001498b89d
x17: ffff800080562280 x16: ffff80008054c44c x15: ffff80008053d3ec
x14: ffff800086733208 x13: 0000000000000001 x12: 0000000000000000
x11: ffff80008015517c x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000000c0 x7 : 0000000000000000 x6 : ffff800080b63cdc
x5 : ffff0000f3636d20 x4 : 0000000000000008 x3 : ffff800080155224
x2 : 0000000000000000 x1 : ffff0000d88bd700 x0 : ffff80011d69a000
Call trace:
 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P)
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P)
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline] (P)
 _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:198 (P)
 stack_depot_save_flags+0x2a0/0x6d8 lib/stackdepot.c:728
 kasan_save_stack mm/kasan/common.c:58 [inline]
 kasan_save_track+0x54/0x78 mm/kasan/common.c:78
 kasan_save_alloc_info+0x44/0x54 mm/kasan/generic.c:570
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0x9c/0xb4 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_node_noprof+0x32c/0x6ac mm/slub.c:5432
 kmalloc_node_noprof include/linux/slab.h:1077 [inline]
 alloc_cpumask_var_node+0x90/0x138 lib/cpumask.c:30
 alloc_cpumask_var include/linux/cpumask.h:1052 [inline]
 zalloc_cpumask_var include/linux/cpumask.h:1058 [inline]
 clock_was_set+0xa4/0x6b0 kernel/time/hrtimer.c:982
 do_adjtimex+0x208/0x2f0 kernel/time/timekeeping.c:2924
 posix_clock_realtime_adj+0x20/0x30 kernel/time/posix-timers.c:207
 do_clock_adjtime+0x120/0x140 kernel/time/posix-timers.c:1154
 __do_sys_clock_adjtime kernel/time/posix-timers.c:1166 [inline]
 __se_sys_clock_adjtime kernel/time/posix-timers.c:1157 [inline]
 __arm64_sys_clock_adjtime+0x17c/0x2ac kernel/time/posix-timers.c:1157
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:140
 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736
 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_local_irq_enable arch/arm64/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 1 skipped: idling at default_idle_call+0xd0/0xfc kernel/sched/idle.c:129