watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz.0.124:7291]
Modules linked in:
irq event stamp: 7597
hardirqs last  enabled at (7596): [<ffff80008b48466c>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline]
hardirqs last  enabled at (7596): [<ffff80008b48466c>] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:95
hardirqs last disabled at (7597): [<ffff80008b4820e4>] __el1_irq arch/arm64/kernel/entry-common.c:545 [inline]
hardirqs last disabled at (7597): [<ffff80008b4820e4>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:563
softirqs last  enabled at (1092): [<ffff8000800307f8>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (1106): [<ffff800089573904>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (1106): [<ffff800089573904>] sock_devmem_dontneed+0x1d8/0x5fc net/core/sock.c:1086
CPU: 0 UID: 0 PID: 7291 Comm: syz.0.124 Not tainted 6.12.0-rc1-syzkaller-g2d8bce6e34be #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : dm_bm_checksum+0x4e68/0x10050
lr : xas_start+0x324/0x6c4 lib/xarray.c:193
sp : ffff80009f1e7540
x29: ffff80009f1e7540 x28: 1ffff00013e3cee0 x27: 0000000000000000
x26: dfff800000000000 x25: 1ffff00013e3cee3 x24: dfff800000000000
x23: ffff0000cd156380 x22: 0000000000000000 x21: ffff80009f1e7718
x20: 00000000069c430d x19: 0000000000000000 x18: ffff80009f1e74a0
x17: 000000000002cfbb x16: ffff8000805866e8 x15: 0000000000000003
x14: 1ffff00013e3cee4 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000040000 x10: 0000000000ff0100 x9 : 0000000000000002
x8 : ffff0000d095dac0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000010
x2 : 0000000000000008 x1 : 00000000069c430d x0 : 0000000000000000
Call trace:
 dm_bm_checksum+0x4e68/0x10050
 xas_load+0x3c/0x50c lib/xarray.c:238
 xas_store+0x94/0x1470 lib/xarray.c:790
 __xa_erase+0x11c/0x1e0 lib/xarray.c:1511
 sock_devmem_dontneed+0x2a0/0x5fc net/core/sock.c:1089
 sk_setsockopt+0x74c/0x30d8 net/core/sock.c:1280
 sock_setsockopt+0x68/0x80 net/core/sock.c:1633
 do_sock_setsockopt+0x238/0x4e0 net/socket.c:2325
 __sys_setsockopt+0x128/0x1a8 net/socket.c:2352
 __do_sys_setsockopt net/socket.c:2361 [inline]
 __se_sys_setsockopt net/socket.c:2358 [inline]
 __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2358
 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:732
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:750
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.12.0-rc1-syzkaller-g2d8bce6e34be #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:50
lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:124
sp : ffff800097947d10
x29: ffff800097947d10 x28: dfff800000000000 x27: 1ffff00012f28fb0
x26: ffff80008f7ed000 x25: 0000000000000000 x24: 0000000000000002
x23: 1ffff00011efdab6 x22: ffff80008f7ed5b0 x21: 0000000000000000
x20: ffff0000c1b80000 x19: ffff8000803003e0 x18: 1fffe000366cc076
x17: ffff80008f7ed000 x16: ffff8000802ffca4 x15: 0000000000000001
x14: 1fffe000366cddd0 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000
x8 : 000000000009d3fb x7 : ffff8000804ab79c x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008b486784
x2 : 0000000000000000 x1 : ffff80008b604f00 x0 : ffff800123f21000
Call trace:
 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline]
 arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:48
 cpuidle_idle_call kernel/sched/idle.c:185 [inline]
 do_idle+0x1f0/0x4e4 kernel/sched/idle.c:326
 cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:424
 secondary_start_kernel+0x1bc/0x1e4 arch/arm64/kernel/smp.c:279
 __secondary_switched+0xb8/0xbc arch/arm64/kernel/head.S:417