watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz.0.184:5634]
Modules linked in:
irq event stamp: 1942
hardirqs last  enabled at (1941): [<ffff8000867c300c>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline]
hardirqs last  enabled at (1941): [<ffff8000867c300c>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:198
hardirqs last disabled at (1942): [<ffff80008679e7dc>] __el1_irq arch/arm64/kernel/entry-common.c:510 [inline]
hardirqs last disabled at (1942): [<ffff80008679e7dc>] el1_interrupt+0x28/0x60 arch/arm64/kernel/entry-common.c:526
softirqs last  enabled at (1934): [<ffff800080309080>] softirq_handle_end kernel/softirq.c:468 [inline]
softirqs last  enabled at (1934): [<ffff800080309080>] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650
softirqs last disabled at (1929): [<ffff8000800204b0>] __do_softirq+0x14/0x20 kernel/softirq.c:656
CPU: 0 UID: 0 PID: 5634 Comm: syz.0.184 Not tainted syzkaller #0 PREEMPT 
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 : ffff8000a9887920
x29: ffff8000a9887920 x28: 00000000000000aa x27: ffff0001ae044d80
x26: 000000b2d05e0000 x25: ffff0001ae044d20 x24: 0000000000000008
x23: ffff0001ae044f00 x22: ffff0001ae044cc0 x21: ffff0000c1e53740
x20: ffff0001ae044cc0 x19: 0000000000000000 x18: 00000000ffffffff
x17: ffff80008a186c80 x16: ffff80008a51b8b8 x15: ffff0000cc15e250
x14: ffff0000cc15e230 x13: 0000000000000001 x12: 0000000000000000
x11: ffff80008a3fcd08 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000000c0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000020 x4 : 0000000000000008 x3 : ffff800080154bd4
x2 : 0000000000000007 x1 : ffff0000cc15d700 x0 : ffff800125721000
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)
 class_raw_spinlock_irqsave_destructor include/linux/spinlock.h:571 [inline]
 clock_was_set+0x4d8/0x6b0 kernel/time/hrtimer.c:997
 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:740
 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:759
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 4674 Comm: sshd-session Not tainted syzkaller #0 PREEMPT 
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 : do_page_fault+0x754/0xb64 arch/arm64/mm/fault.c:704
lr : do_page_fault+0x3d4/0xb64 arch/arm64/mm/fault.c:695
sp : ffff80009b6e7d80
x29: ffff80009b6e7dc0 x28: 1fffe00019cd8ecc x27: ffff0000ce6c7660
x26: 0000000000000255 x25: ffff0000d344ba00 x24: dfff800000000000
x23: ffff0000ce6c7640 x22: 0000ffffab7f89dc x21: ffff80009b6e7ec0
x20: 000000009200004f x19: 0000ffffab7f89dc x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000
x11: ffff80008a3fcd08 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000000 x7 : ffff8000809eab9c x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000801838d8
x2 : 0000000000000002 x1 : ffff0000d344ba00 x0 : 0000000000000000
Call trace:
 do_page_fault+0x754/0xb64 arch/arm64/mm/fault.c:787 (P)
 do_mem_abort+0x70/0x190 arch/arm64/mm/fault.c:980
 el0_da+0x78/0x254 arch/arm64/kernel/entry-common.c:556
 el0t_64_sync_handler+0x10c/0x148 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594