INFO: task syz.3.6409:19546 blocked for more than 122 seconds.
Not tainted 6.12.30-syzkaller-ge2bf362ee23b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.6409 state:D stack:0 pid:19546 tgid:19544 ppid:19242 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5929 [inline]
__schedule+0x145b/0x1f10 kernel/sched/core.c:7755
__schedule_loop kernel/sched/core.c:7836 [inline]
schedule+0xc6/0x240 kernel/sched/core.c:7851
request_wait_answer fs/fuse/dev.c:476 [inline]
__fuse_request_send fs/fuse/dev.c:491 [inline]
__fuse_simple_request+0xdb1/0x1980 fs/fuse/dev.c:586
fuse_simple_request fs/fuse/fuse_i.h:1248 [inline]
fuse_send_open fs/fuse/file.c:53 [inline]
fuse_file_open+0x47c/0x910 fs/fuse/file.c:161
fuse_do_open fs/fuse/file.c:190 [inline]
fuse_open+0x83d/0x1ba0 fs/fuse/file.c:293
do_dentry_open+0x978/0x1510 fs/open.c:960
vfs_open+0x86/0x230 fs/open.c:1090
do_open fs/namei.c:3774 [inline]
path_openat+0x2b6c/0x34b0 fs/namei.c:3933
do_filp_open+0x1c6/0x3e0 fs/namei.c:3960
do_open_execat+0x133/0x3e0 fs/exec.c:904
alloc_bprm+0x2b/0xb50 fs/exec.c:1541
do_execveat_common+0x198/0xa80 fs/exec.c:1940
do_execve fs/exec.c:2063 [inline]
__do_sys_execve fs/exec.c:2139 [inline]
__se_sys_execve fs/exec.c:2134 [inline]
__x64_sys_execve+0x96/0xb0 fs/exec.c:2134
x64_sys_call+0x12c4/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:60
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fb4b778e929
RSP: 002b:00007fb4b85bf038 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 00007fb4b79b6080 RCX: 00007fb4b778e929
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000080
RBP: 00007fb4b7810b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fb4b79b6080 R15: 00007fff97ce5a28
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 37 Comm: khungtaskd Not tainted 6.12.30-syzkaller-ge2bf362ee23b #0 e1c904518e9113895a28c59b25a6002cdacb68bf
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:94
dump_stack_lvl+0x10c/0x190 lib/dump_stack.c:120
dump_stack+0x19/0x20 lib/dump_stack.c:129
nmi_cpu_backtrace+0x2bf/0x2d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41
trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:229 [inline]
watchdog+0xd8f/0xed0 kernel/hung_task.c:385
kthread+0x2c7/0x370 kernel/kthread.c:389
ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 98 Comm: klogd Not tainted 6.12.30-syzkaller-ge2bf362ee23b #0 e1c904518e9113895a28c59b25a6002cdacb68bf
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:check_kcov_mode kernel/kcov.c:194 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x3b/0x70 kernel/kcov.c:217
Code: 40 e9 04 00 65 8b 15 fc 45 7f 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 ec 0b 00 00 00 74 2c 8b 91 c8 0b 00 00 <83> fa 02 75 21 48 8b 91 d0 0b 00 00 48 8b 32 48 8d 7e 01 8b 89 cc
RSP: 0018:ffffc90000e3f310 EFLAGS: 00000246
RAX: ffffffff82743b73 RBX: ffffc90000e3f940 RCX: ffff88810bfc8000
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffffc90000e3f5e2
RBP: ffffc90000e3f310 R08: ffff88810bfc8000 R09: 0000000000000003
R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000080
R13: ffffc90000e3f5e0 R14: ffff8881093f3190 R15: ffff888109f4bb40
FS: 00007f53695c9c80(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe9032ad98 CR3: 000000010bf42000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 00000000000007ce
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
cond_compute_av+0x3f3/0x410 security/selinux/ss/conditional.c:584
context_struct_compute_av+0x80a/0x1680 security/selinux/ss/services.c:671
security_compute_av+0x38d/0xfa0 security/selinux/ss/services.c:1146
avc_compute_av+0x89/0x770 security/selinux/avc.c:994
avc_perm_nonode+0xc8/0x1b0 security/selinux/avc.c:1118
avc_has_perm_noaudit+0x21c/0x360 security/selinux/avc.c:1161
avc_has_perm+0xc2/0x220 security/selinux/avc.c:1196
selinux_socket_unix_may_send+0x1d6/0x2a0 security/selinux/hooks.c:5051
security_unix_may_send+0x4e/0xc0 security/security.c:4509
unix_dgram_sendmsg+0xdab/0x1b70 net/unix/af_unix.c:2118
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
__sys_sendto+0x66a/0x6f0 net/socket.c:2217
__do_sys_sendto net/socket.c:2229 [inline]
__se_sys_sendto net/socket.c:2225 [inline]
__x64_sys_sendto+0xe9/0x100 net/socket.c:2225
x64_sys_call+0x2c2c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:45
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f5369719407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007fff6b4e0b80 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f53695c9c80 RCX: 00007f5369719407
RDX: 000000000000004d RSI: 00007fff6b4e0cc0 RDI: 0000000000000003
RBP: 00007fff6b4e10f0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000202 R12: 00007fff6b4e1108
R13: 00007fff6b4e0cc0 R14: 0000000000000032 R15: 00007fff6b4e0cc0