watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz.1.38:6616]
Modules linked in:
irq event stamp: 6539
hardirqs last  enabled at (6538): [<ffff80008b4a3b44>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline]
hardirqs last  enabled at (6538): [<ffff80008b4a3b44>] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:95
hardirqs last disabled at (6539): [<ffff80008b4a15bc>] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline]
hardirqs last disabled at (6539): [<ffff80008b4a15bc>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:575
softirqs last  enabled at (736): [<ffff80008003084c>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (744): [<ffff80008958f8d0>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (744): [<ffff80008958f8d0>] sock_devmem_dontneed+0x1d8/0x5fc net/core/sock.c:1086
CPU: 0 UID: 0 PID: 6616 Comm: syz.1.38 Not tainted 6.12.0-rc5-syzkaller-g1bf329c696cf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : check_kcov_mode kernel/kcov.c:185 [inline]
pc : write_comp_data kernel/kcov.c:246 [inline]
pc : __sanitizer_cov_trace_const_cmp8+0x4c/0x98 kernel/kcov.c:321
lr : xa_is_internal include/linux/xarray.h:175 [inline]
lr : xa_is_node include/linux/xarray.h:1264 [inline]
lr : xas_start+0x288/0x6c4 lib/xarray.c:191
sp : ffff8000a39f7530
x29: ffff8000a39f7540 x28: 1ffff0001473eee0 x27: 0000000000000000
x26: dfff800000000000 x25: 1ffff0001473eee3 x24: dfff800000000000
x23: ffff0000ea4a3b00 x22: 0000000000000000 x21: ffff8000a39f7718
x20: ffff8000a39f7700 x19: 0000000000000000 x18: ffff8000a39f74a0
x17: 000000000001f2fd x16: ffff80008058af60 x15: 0000000000000003
x14: 1ffff0001473eee4 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000040000 x10: 0000000000ff0100 x9 : 0000000000000201
x8 : ffff0000ccb63c80 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000010
x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000002
Call trace:
 check_kcov_mode kernel/kcov.c:183 [inline] (P)
 write_comp_data kernel/kcov.c:246 [inline] (P)
 __sanitizer_cov_trace_const_cmp8+0x4c/0x98 kernel/kcov.c:321 (P)
 xa_is_internal include/linux/xarray.h:175 [inline] (L)
 xa_is_node include/linux/xarray.h:1264 [inline] (L)
 xas_start+0x288/0x6c4 lib/xarray.c:191 (L)
 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:2330
 __sys_setsockopt+0x128/0x1a8 net/socket.c:2357
 __do_sys_setsockopt net/socket.c:2366 [inline]
 __se_sys_setsockopt net/socket.c:2363 [inline]
 __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2363
 __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:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
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-rc5-syzkaller-g1bf329c696cf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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 : ffff800097967d10
x29: ffff800097967d10 x28: dfff800000000000 x27: 1ffff00012f2cfb0
x26: ffff80008f7fd000 x25: 0000000000000000 x24: 0000000000000002
x23: 1ffff00011effab8 x22: ffff80008f7fd5c0 x21: 0000000000000000
x20: ffff0000c1b80000 x19: ffff800080304070 x18: 1fffe000366cb876
x17: ffff80008f7fd000 x16: ffff800080303934 x15: 0000000000000001
x14: 1fffe000366cd5d0 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000
x8 : 0000000000051749 x7 : ffff8000804b0500 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008b4a5f20
x2 : 0000000000000000 x1 : ffff80008b615100 x0 : ffff800123f0d000
Call trace:
 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] (P)
 arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:48 (P)
 default_idle_call+0xf8/0x128 kernel/sched/idle.c:124 (L)
 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+0xc0/0xc4 arch/arm64/kernel/head.S:417