INFO: task syz-executor.2:5719 blocked for more than 143 seconds.
Not tainted 6.9.0-rc4-syzkaller-00266-g977b1ef51866 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:27296 pid:5719 tgid:5712 ppid:5089 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
rwsem_down_read_slowpath+0x61e/0xb20 kernel/locking/rwsem.c:1086
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x124/0x330 kernel/locking/rwsem.c:1528
inode_lock_shared include/linux/fs.h:805 [inline]
lookup_slow fs/namei.c:1708 [inline]
walk_component+0x342/0x5b0 fs/namei.c:2004
lookup_last fs/namei.c:2461 [inline]
path_lookupat+0x17f/0x770 fs/namei.c:2485
filename_lookup+0x1e5/0x5b0 fs/namei.c:2514
user_path_at_empty+0x42/0x60 fs/namei.c:2921
user_path_at include/linux/namei.h:57 [inline]
do_mount fs/namespace.c:3689 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount fs/namespace.c:3875 [inline]
__x64_sys_mount+0x1ff/0x320 fs/namespace.c:3875
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdbe6e7dea9
RSP: 002b:00007fdbe7b580c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fdbe6fac120 RCX: 00007fdbe6e7dea9
RDX: 0000000020000140 RSI: 00000000200002c0 RDI: 0000000000000000
RBP: 00007fdbe6eca4a4 R08: 0000000020000080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fdbe6fac120 R15: 00007ffd8346e888
INFO: task syz-executor.2:5724 blocked for more than 144 seconds.
Not tainted 6.9.0-rc4-syzkaller-00266-g977b1ef51866 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28784 pid:5724 tgid:5712 ppid:5089 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
rwsem_down_read_slowpath+0x61e/0xb20 kernel/locking/rwsem.c:1086
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x124/0x330 kernel/locking/rwsem.c:1528
inode_lock_shared include/linux/fs.h:805 [inline]
open_last_lookups fs/namei.c:3565 [inline]
path_openat+0x18ce/0x2990 fs/namei.c:3796
do_filp_open+0x1dc/0x430 fs/namei.c:3826
do_sys_openat2+0x17a/0x1e0 fs/open.c:1406
do_sys_open fs/open.c:1421 [inline]
__do_sys_open fs/open.c:1429 [inline]
__se_sys_open fs/open.c:1425 [inline]
__x64_sys_open+0x154/0x1e0 fs/open.c:1425
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdbe6e7dea9
RSP: 002b:00007fdbe7b370c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fdbe6fac1f0 RCX: 00007fdbe6e7dea9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040
RBP: 00007fdbe6eca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fdbe6fac1f0 R15: 00007ffd8346e888
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0:
ffffffff8d7b0e20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
ffffffff8d7b0e20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
ffffffff8d7b0e20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
3 locks held by kworker/u9:1/4470:
#0: ffff8880212c8148 ((wq_completion)hci4){+.+.}-{0:0}, at: process_one_work+0x1296/0x1ac0 kernel/workqueue.c:3229
#1: ffffc9000d567d80 ((work_completion)(&hdev->error_reset)){+.+.}-{0:0}, at: process_one_work+0x906/0x1ac0 kernel/workqueue.c:3230
#2: ffff888062f59060 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_open+0x22/0x90 net/bluetooth/hci_core.c:481
1 lock held by udevd/4526:
2 locks held by getty/4834:
#0: ffff88802a87f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201
3 locks held by kworker/0:7/5145:
1 lock held by syz-executor.2/5713:
1 lock held by syz-executor.2/5719:
#0: ffff88805d060188 (&type->i_mutex_dir_key#14){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:805 [inline]
#0: ffff88805d060188 (&type->i_mutex_dir_key#14){.+.+}-{3:3}, at: lookup_slow fs/namei.c:1708 [inline]
#0: ffff88805d060188 (&type->i_mutex_dir_key#14){.+.+}-{3:3}, at: walk_component+0x342/0x5b0 fs/namei.c:2004
1 lock held by syz-executor.2/5724:
#0: ffff88805d060188 (&type->i_mutex_dir_key#14){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:805 [inline]
#0: ffff88805d060188 (&type->i_mutex_dir_key#14){.+.+}-{3:3}, at: open_last_lookups fs/namei.c:3565 [inline]
#0: ffff88805d060188 (&type->i_mutex_dir_key#14){.+.+}-{3:3}, at: path_openat+0x18ce/0x2990 fs/namei.c:3796
5 locks held by udevd/7201:
5 locks held by syz-executor.3/7781:
#0: ffffffff8f39c7d0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216
#1: ffffffff8f39c888 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8f39c888 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:58 [inline]
#1: ffffffff8f39c888 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:55 [inline]
#1: ffffffff8f39c888 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x580/0x800 net/netlink/genetlink.c:1207
#2: ffffffff8f2fff48 (rtnl_mutex){+.+.}-{3:3}, at: wg_set_device+0xce/0x13e0 drivers/net/wireguard/netlink.c:504
#3: ffff888061431408 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_set_device+0xe4/0x13e0 drivers/net/wireguard/netlink.c:505
#4: ffffffff8d7bc538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#4: ffffffff8d7bc538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x682/0x7a0 kernel/rcu/tree_exp.h:939
2 locks held by syz-executor.3/7788:
#0: ffffffff8f39c7d0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1216
#1: ffffffff8f39c888 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8f39c888 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:58 [inline]
#1: ffffffff8f39c888 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:55 [inline]
#1: ffffffff8f39c888 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x580/0x800 net/netlink/genetlink.c:1207
1 lock held by syz-executor.0/7787:
#0: ffffffff8f2fff48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f2fff48 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe60 net/core/rtnetlink.c:6592
1 lock held by syz-executor.1/7794:
#0: ffffffff8f2fff48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f2fff48 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe60 net/core/rtnetlink.c:6592
2 locks held by iou-sqp-7794/7797:
4 locks held by kvm-nx-lpage-re/7795:
#0: ffffffff8d801688 (cgroup_mutex){+.+.}-{3:3}, at: cgroup_lock include/linux/cgroup.h:368 [inline]
#0: ffffffff8d801688 (cgroup_mutex){+.+.}-{3:3}, at: cgroup_attach_task_all+0x25/0x130 kernel/cgroup/cgroup-v1.c:61
#1: ffffffff8d6545b0 (cpu_hotplug_lock){++++}-{0:0}, at: cgroup_attach_lock+0x12/0x40 kernel/cgroup/cgroup.c:2413
#2: ffffffff8d801450 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: cgroup_attach_lock kernel/cgroup/cgroup.c:2415 [inline]
#2: ffffffff8d801450 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: cgroup_attach_lock+0x37/0x40 kernel/cgroup/cgroup.c:2411
#3: ffffffff8d7bc538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#3: ffffffff8d7bc538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x403/0x7a0 kernel/rcu/tree_exp.h:939
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.9.0-rc4-syzkaller-00266-g977b1ef51866 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xf86/0x1240 kernel/hung_task.c:380
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7264 Comm: udevd Not tainted 6.9.0-rc4-syzkaller-00266-g977b1ef51866 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:tomoyo_domain_quota_is_ok+0x5d/0x5a0 security/tomoyo/util.c:1051
Code: 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 97 04 00 00 41 0f b6 5c 24 4c bf 01 00 00 00 89 de e8 18 6e 4b fd 80 fb 01 74 07 <31> db e9 98 02 00 00 e8 87 73 4b fd 49 8d 7c 24 10 48 b8 00 00 00
RSP: 0018:ffffc900037df7f0 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84424f38
RDX: ffff888028fbbc00 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc900037df9f0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffc900037dfac8
R13: ffffc900037dfac8 R14: ffff88807d116000 R15: 0000000000000001
FS: 00007f3e6d096c80(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555eca410371 CR3: 0000000075d68000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
tomoyo_supervisor+0x2b2/0xea0 security/tomoyo/common.c:2081
tomoyo_audit_path_log security/tomoyo/file.c:168 [inline]
tomoyo_path_permission security/tomoyo/file.c:587 [inline]
tomoyo_path_permission+0x270/0x3b0 security/tomoyo/file.c:573
tomoyo_path_perm+0x35e/0x450 security/tomoyo/file.c:838
security_inode_getattr+0xf4/0x160 security/security.c:2269
vfs_getattr+0x36/0xb0 fs/stat.c:173
vfs_statx+0x171/0x550 fs/stat.c:248
vfs_fstatat+0xb3/0x150 fs/stat.c:304
__do_sys_newfstatat+0x98/0x120 fs/stat.c:468
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3e6d1615f4
Code: 64 c7 00 09 00 00 00 83 c8 ff c3 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 00 00 00 00 41 89 ca b8 06 01 00 00 0f 05 <45> 31 c0 3d 00 f0 ff ff 76 10 48 8b 15 03 a8 0d 00 f7 d8 41 83 c8
RSP: 002b:00007ffc4be2e8b8 EFLAGS: 00000202 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 0000555efaee5b10 RCX: 00007f3e6d1615f4
RDX: 00007ffc4be2e8c8 RSI: 00007ffc4be2e958 RDI: 00000000ffffff9c
RBP: 00007ffc4be2fde8 R08: 00007ffc4be2fde8 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000202 R12: 0000000000000000
R13: 0000555efaee5c00 R14: 00007ffc4be2e958 R15: 0000000000000000