INFO: task syz-executor.4:15473 blocked for more than 143 seconds.
Not tainted 6.4.0-rc1-syzkaller-00138-gd4d58949a6ea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24584 pid:15473 ppid:5029 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
inode_lock_nested include/linux/fs.h:810 [inline]
lock_two_directories+0x116/0x120 fs/namei.c:3032
ovl_workdir_ok fs/overlayfs/super.c:981 [inline]
ovl_get_workdir+0x211/0x17c0 fs/overlayfs/super.c:1416
ovl_fill_super+0x1c64/0x2bd0 fs/overlayfs/super.c:1992
mount_nodev+0x56/0xe0 fs/super.c:1426
legacy_get_tree+0xef/0x190 fs/fs_context.c:610
vfs_get_tree+0x8c/0x270 fs/super.c:1510
do_new_mount+0x28f/0xae0 fs/namespace.c:3039
do_mount fs/namespace.c:3382 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1da3c8c169
RSP: 002b:00007f1da4a64168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f1da3dabf80 RCX: 00007f1da3c8c169
RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f1da3ce7ca1 R08: 0000000020000280 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd196cf0ef R14: 00007f1da4a64300 R15: 0000000000022000
INFO: task syz-executor.4:15540 blocked for more than 144 seconds.
Not tainted 6.4.0-rc1-syzkaller-00138-gd4d58949a6ea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:27024 pid:15540 ppid:5029 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
inode_lock_nested include/linux/fs.h:810 [inline]
f2fs_rename fs/f2fs/namei.c:1004 [inline]
f2fs_rename2+0xc71/0x2ad0 fs/f2fs/namei.c:1332
vfs_rename+0xb1b/0xfa0 fs/namei.c:4849
do_renameat2+0xd78/0x1660 fs/namei.c:5002
__do_sys_rename fs/namei.c:5048 [inline]
__se_sys_rename fs/namei.c:5046 [inline]
__x64_sys_rename+0x86/0x90 fs/namei.c:5046
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1da3c8c169
RSP: 002b:00007f1da4a43168 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f1da3dac050 RCX: 00007f1da3c8c169
RDX: 0000000000000000 RSI: 0000000020000440 RDI: 0000000020000000
RBP: 00007f1da3ce7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd196cf0ef R14: 00007f1da4a43300 R15: 0000000000022000
INFO: task syz-executor.4:15544 blocked for more than 145 seconds.
Not tainted 6.4.0-rc1-syzkaller-00138-gd4d58949a6ea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:29096 pid:15544 ppid:5029 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
inode_lock_nested include/linux/fs.h:810 [inline]
do_rmdir+0x260/0x6a0 fs/namei.c:4245
__do_sys_rmdir fs/namei.c:4276 [inline]
__se_sys_rmdir fs/namei.c:4274 [inline]
__x64_sys_rmdir+0x49/0x50 fs/namei.c:4274
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1da3c8c169
RSP: 002b:00007f1da4a22168 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 00007f1da3dac120 RCX: 00007f1da3c8c169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200002c0
RBP: 00007f1da3ce7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd196cf0ef R14: 00007f1da4a22300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf27670 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8cf27a30 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
#0: ffffffff8cf274a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/u4:3/42:
2 locks held by getty/4746:
#0: ffff88802d142098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1:
ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176
1 lock held by syz-executor.1/5022:
#0: ffffffff8cf2cb78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#0: ffffffff8cf2cb78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:992
1 lock held by syz-executor.3/5030:
#0: ffffffff8cf2cb78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#0: ffffffff8cf2cb78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:992
2 locks held by kworker/0:5/5084:
#0: ffff888012472538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1: ffffc90004b4fd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
4 locks held by syz-executor.4/15473:
#0: ffff8880354b20e0 (&type->s_umount_key#63/1){+.+.}-{3:3}, at: alloc_super+0x217/0x930 fs/super.c:228
#1: ffff88805bc88748 (&type->s_vfs_rename_key#4){+.+.}-{3:3}, at: lock_rename+0x52/0xa0 fs/namei.c:3046
#2: ffff888038a2bf38 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: lock_two_directories+0xc3/0x120
#3: ffff888038a2b660 (&type->i_mutex_dir_key#11/5){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:810 [inline]
#3: ffff888038a2b660 (&type->i_mutex_dir_key#11/5){+.+.}-{3:3}, at: lock_two_directories+0x116/0x120 fs/namei.c:3032
4 locks held by syz-executor.4/15540:
#0: ffff88805bc88460 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:394
#1: ffff888038a2d0e8 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:810 [inline]
#1: ffff888038a2d0e8 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: lock_rename fs/namei.c:3042 [inline]
#1: ffff888038a2d0e8 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: do_renameat2+0x615/0x1660 fs/namei.c:4941
#2: ffff888038a2b660 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline]
#2: ffff888038a2b660 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: vfs_rename+0x617/0xfa0 fs/namei.c:4821
#3: ffff888038a2bf38 (&type->i_mutex_dir_key#11/4){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:810 [inline]
#3: ffff888038a2bf38 (&type->i_mutex_dir_key#11/4){+.+.}-{3:3}, at: f2fs_rename fs/f2fs/namei.c:1004 [inline]
#3: ffff888038a2bf38 (&type->i_mutex_dir_key#11/4){+.+.}-{3:3}, at: f2fs_rename2+0xc71/0x2ad0 fs/f2fs/namei.c:1332
2 locks held by syz-executor.4/15544:
#0: ffff88805bc88460 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:394
#1: ffff888038a2d0e8 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:810 [inline]
#1: ffff888038a2d0e8 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: do_rmdir+0x260/0x6a0 fs/namei.c:4245
1 lock held by syz-executor.5/18798:
#0: ffff88807c5d00e0 (&type->s_umount_key#50/1){+.+.}-{3:3}, at: alloc_super+0x217/0x930 fs/super.c:228
1 lock held by syz-executor.2/18804:
3 locks held by syz-executor.2/18805:
2 locks held by syz-executor.2/18823:
#0: ffff8880320e0460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:394
#1: ffff888078167200 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline]
#1: ffff888078167200 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: process_measurement+0x435/0x1ce0 security/integrity/ima/ima_main.c:243
1 lock held by syz-executor.2/18829:
#0: ffff888078167200 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:775 [inline]
#0: ffff888078167200 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: process_measurement+0x435/0x1ce0 security/integrity/ima/ima_main.c:243
3 locks held by syz-executor.0/18822:
3 locks held by syz-executor.4/18832:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc1-syzkaller-00138-gd4d58949a6ea #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8859 Comm: kworker/u4:10 Not tainted 6.4.0-rc1-syzkaller-00138-gd4d58949a6ea #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Workqueue: phy3 ieee80211_iface_work
RIP: 0010:find_stack lib/stackdepot.c:351 [inline]
RIP: 0010:__stack_depot_save+0x15a/0x650 lib/stackdepot.c:390
Code: 48 8b 2d 31 6d 7c 0d 8b 1d 27 6d 7c 0d 44 21 f3 4c 8b 64 dd 00 45 89 c5 eb 04 4d 8b 24 24 4d 85 e4 74 2c 45 39 74 24 08 75 f0 <45> 39 44 24 0c 75 e9 31 c0 49 8b 0c c7 49 3b 4c c4 18 75 dc 48 ff
RSP: 0018:ffffc9000a7aef08 EFLAGS: 00000246
RAX: 0000000053a9cb46 RBX: 000000000007d1de RCX: 0000000033581e9a
RDX: ffffc9000a7aefc0 RSI: 0000000000000000 RDI: 0000000000000800
RBP: ffff88823b400000 R08: 000000000000000d R09: ffffc9000a7aeed0
R10: ffffc9000a7aee30 R11: dffffc0000000001 R12: ffff88805be8f170
R13: 000000000000000d R14: 000000005877d1de R15: ffffc9000a7aef60
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005604c5393000 CR3: 00000000208bf000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kasan_save_stack+0x4f/0x60 mm/kasan/common.c:46
__kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:491
kvfree_call_rcu+0x109/0x8d0 kernel/rcu/tree.c:3332
cfg80211_update_known_bss+0x166/0x9e0
cfg80211_bss_update+0x171/0x20d0 net/wireless/scan.c:1728
cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2478 [inline]
cfg80211_inform_bss_frame_data+0xc5b/0x22c0 net/wireless/scan.c:2511
ieee80211_bss_info_update+0x801/0xf00 net/mac80211/scan.c:190
ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
ieee80211_ibss_rx_queued_mgmt+0x192f/0x2cf0 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1594 [inline]
ieee80211_iface_work+0x7bd/0xd00 net/mac80211/iface.c:1648
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308