watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor:6662]
Modules linked in:
irq event stamp: 355416
hardirqs last  enabled at (355415): [<ffff80008b00487c>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:86 [inline]
hardirqs last  enabled at (355415): [<ffff80008b00487c>] exit_to_kernel_mode+0xc0/0xf0 arch/arm64/kernel/entry-common.c:96
hardirqs last disabled at (355416): [<ffff80008b001cbc>] __el1_irq arch/arm64/kernel/entry-common.c:650 [inline]
hardirqs last disabled at (355416): [<ffff80008b001cbc>] el1_interrupt+0x24/0x54 arch/arm64/kernel/entry-common.c:668
softirqs last  enabled at (355404): [<ffff8000803d88a0>] softirq_handle_end kernel/softirq.c:425 [inline]
softirqs last  enabled at (355404): [<ffff8000803d88a0>] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607
softirqs last disabled at (355387): [<ffff800080022028>] __do_softirq+0x14/0x20 kernel/softirq.c:613
CPU: 1 UID: 0 PID: 6662 Comm: syz-executor Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : propagation_source fs/pnode.c:77 [inline]
pc : change_mnt_propagation+0xec/0x77c fs/pnode.c:114
lr : propagation_source fs/pnode.c:78 [inline]
lr : change_mnt_propagation+0x120/0x77c fs/pnode.c:114
sp : ffff8000a4a07a90
x29: ffff8000a4a07ac0 x28: dfff800000000000 x27: ffff0000efa88b60
x26: ffff0000efa88bb0 x25: 1fffe0001df51176 x24: ffff0000efa88b18
x23: ffff0000f331b238 x22: ffff0000efa88a80 x21: ffff0000efa88a80
x20: 0000000000040000 x19: ffff0000f3339500 x18: 1fffe000337a0688
x17: ffff80008f7be000 x16: ffff80008af6de48 x15: 0000000000000002
x14: 1fffe0001df5116f x13: 0000000000000000 x12: 0000000000000000
x11: ffff60001df51171 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000f33395b8 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000008 x3 : 0000000000000000
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 next_peer fs/pnode.c:19 [inline] (P)
 propagation_source fs/pnode.c:77 [inline] (P)
 change_mnt_propagation+0xec/0x77c fs/pnode.c:114 (P)
 umount_tree+0x7e4/0xbbc fs/namespace.c:1872
 do_umount fs/namespace.c:-1 [inline]
 path_umount+0x90c/0x980 fs/namespace.c:2095
 ksys_umount fs/namespace.c:2118 [inline]
 __do_sys_umount fs/namespace.c:2123 [inline]
 __se_sys_umount fs/namespace.c:2121 [inline]
 __arm64_sys_umount+0x128/0x174 fs/namespace.c:2121
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6746 Comm: syz-executor Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : cpu_relax arch/arm64/include/asm/vdso/processor.h:12 [inline]
pc : path_init+0xdc0/0xe98 fs/namei.c:2537
lr : path_init+0xdc0/0xe98 fs/namei.c:2537
sp : ffff8000a4247680
x29: ffff8000a42476e0 x28: dfff800000000000 x27: 1fffe00019832884
x26: ffff0000cc194420 x25: 0000000000000101 x24: 1ffff00014848f43
x23: ffff80008f745840 x22: ffff8000a4247a1c x21: 0000000000000100
x20: ffff8000a42479e0 x19: 000000000004a017 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80008b007230 x15: 0000000000000001
x14: 1ffff00011ee8b08 x13: 0000000000000000 x12: 0000000000000000
x11: ffff700011ee8b09 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000da1e0000 x7 : ffff800080daa4c4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800080da8a84
x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 path_init+0xdc0/0xe98 fs/namei.c:2537 (P)
 path_openat+0x13c/0x2c40 fs/namei.c:4041
 do_filp_open+0x18c/0x36c fs/namei.c:4073
 do_open_execat+0x124/0x4d8 fs/exec.c:783
 alloc_bprm+0x3c/0x548 fs/exec.c:1410
 do_execveat_common+0x168/0x834 fs/exec.c:1811
 do_execve fs/exec.c:1934 [inline]
 __do_sys_execve fs/exec.c:2010 [inline]
 __se_sys_execve fs/exec.c:2005 [inline]
 __arm64_sys_execve+0x9c/0xb4 fs/exec.c:2005
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596