INFO: task syz-executor.4:6360 blocked for more than 143 seconds.
Not tainted 6.2.0-rc3-syzkaller-00008-g1fe4fd6f5cad #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:20840 pid:6360 ppid:5107 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x995/0xe20 kernel/sched/core.c:6555
schedule+0xcb/0x190 kernel/sched/core.c:6631
rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x231/0x270 kernel/locking/rwsem.c:1563
inode_lock include/linux/fs.h:756 [inline]
lock_mount+0x5f/0x2d0 fs/namespace.c:2397
do_new_mount_fc fs/namespace.c:3088 [inline]
do_new_mount+0x3f3/0xad0 fs/namespace.c:3147
do_mount fs/namespace.c:3488 [inline]
__do_sys_mount fs/namespace.c:3697 [inline]
__se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3674
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f855748c0c9
RSP: 002b:00007f85581c7168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f85575abf80 RCX: 00007f855748c0c9
RDX: 0000000020002100 RSI: 00000000200020c0 RDI: 0000000000000000
RBP: 00007f85574e7ae9 R08: 0000000020002140 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffccd3d82df R14: 00007f85581c7300 R15: 0000000000022000
INFO: task syz-executor.4:6372 blocked for more than 143 seconds.
Not tainted 6.2.0-rc3-syzkaller-00008-g1fe4fd6f5cad #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:19968 pid:6372 ppid:5107 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x995/0xe20 kernel/sched/core.c:6555
schedule+0xcb/0x190 kernel/sched/core.c:6631
io_schedule+0x83/0x100 kernel/sched/core.c:8811
bit_wait_io+0xe/0xc0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0xbb/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0x1c3/0x240 kernel/sched/wait_bit.c:117
wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline]
__lock_buffer fs/buffer.c:69 [inline]
lock_buffer include/linux/buffer_head.h:397 [inline]
__sync_dirty_buffer+0x107/0x330 fs/buffer.c:2732
__ext4_handle_dirty_metadata+0x29a/0x810 fs/ext4/ext4_jbd2.c:387
ext4_handle_dirty_dirblock+0x363/0x6b0 fs/ext4/namei.c:438
ext4_finish_convert_inline_dir+0x58a/0x700 fs/ext4/inline.c:1181
ext4_convert_inline_data_nolock+0x639/0x820 fs/ext4/inline.c:1258
ext4_try_add_inline_entry+0x683/0x990 fs/ext4/inline.c:1331
ext4_add_entry+0x5a4/0xeb0 fs/ext4/namei.c:2385
ext4_mkdir+0x557/0xcf0 fs/ext4/namei.c:3007
vfs_mkdir+0x3b3/0x590 fs/namei.c:4036
do_mkdirat+0x25b/0x530 fs/namei.c:4061
__do_sys_mkdirat fs/namei.c:4076 [inline]
__se_sys_mkdirat fs/namei.c:4074 [inline]
__x64_sys_mkdirat+0x85/0x90 fs/namei.c:4074
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f855748c0c9
RSP: 002b:00007f85581a6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f85575ac050 RCX: 00007f855748c0c9
RDX: 0000000000000000 RSI: 0000000020000540 RDI: 0000000000000005
RBP: 00007f85574e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffccd3d82df R14: 00007f85581a6300 R15: 0000000000022000
INFO: task syz-executor.4:6377 blocked for more than 143 seconds.
Not tainted 6.2.0-rc3-syzkaller-00008-g1fe4fd6f5cad #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:23912 pid:6377 ppid:5107 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x995/0xe20 kernel/sched/core.c:6555
schedule+0xcb/0x190 kernel/sched/core.c:6631
rwsem_down_read_slowpath+0x5f9/0x930 kernel/locking/rwsem.c:1095
__down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260
inode_lock_shared include/linux/fs.h:766 [inline]
lookup_slow+0x45/0x70 fs/namei.c:1701
walk_component+0x2e1/0x410 fs/namei.c:1993
lookup_last fs/namei.c:2450 [inline]
path_lookupat+0x17d/0x450 fs/namei.c:2474
filename_lookup+0x274/0x650 fs/namei.c:2503
user_path_at_empty+0x40/0x1a0 fs/namei.c:2876
user_path_at include/linux/namei.h:57 [inline]
do_mount fs/namespace.c:3485 [inline]
__do_sys_mount fs/namespace.c:3697 [inline]
__se_sys_mount+0x296/0x3c0 fs/namespace.c:3674
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f855748c0c9
RSP: 002b:00007f8558164168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f85575ac1f0 RCX: 00007f855748c0c9
RDX: 0000000020002100 RSI: 00000000200020c0 RDI: 0000000000000000
RBP: 00007f85574e7ae9 R08: 0000000020002140 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffccd3d82df R14: 00007f8558164300 R15: 0000000000022000
INFO: task syz-executor.4:6384 blocked for more than 144 seconds.
Not tainted 6.2.0-rc3-syzkaller-00008-g1fe4fd6f5cad #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24640 pid:6384 ppid:5107 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x995/0xe20 kernel/sched/core.c:6555
schedule+0xcb/0x190 kernel/sched/core.c:6631
rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x231/0x270 kernel/locking/rwsem.c:1563
inode_lock include/linux/fs.h:756 [inline]
open_last_lookups fs/namei.c:3478 [inline]
path_openat+0x7b9/0x2dd0 fs/namei.c:3711
do_filp_open+0x264/0x4f0 fs/namei.c:3741
do_sys_openat2+0x124/0x4e0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1337
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f855748c0c9
RSP: 002b:00007f8558122168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f85575ac390 RCX: 00007f855748c0c9
RDX: 000000000000275a RSI: 0000000020000180 RDI: ffffffffffffff9c
RBP: 00007f85574e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffccd3d82df R14: 00007f8558122300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d326f50 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d327750 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8d326d80 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:3/46:
#0: ffff888140b0b138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc90000b77d00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
#2: ffff88814014a0e0 (&type->s_umount_key#40){.+.+}-{3:3}, at: trylock_super+0x1b/0xf0 fs/super.c:415
2 locks held by getty/4743:
#0: ffff88814a01c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.4/6360:
#0: ffff88807320c030 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#0: ffff88807320c030 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: lock_mount+0x5f/0x2d0 fs/namespace.c:2397
3 locks held by syz-executor.4/6372:
#0: ffff8880318b0460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:508
#1: ffff88807320c030 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
#1: ffff88807320c030 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: filename_create+0x22a/0x4f0 fs/namei.c:3807
#2: ffff88807320bcf8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
#2: ffff88807320bcf8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_try_add_inline_entry+0xe1/0x990 fs/ext4/inline.c:1289
1 lock held by syz-executor.4/6377:
#0: ffff88807320c030 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:766 [inline]
#0: ffff88807320c030 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1701
2 locks held by syz-executor.4/6384:
#0: ffff8880318b0460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:508
#1: ffff88807320c030 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff88807320c030 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: open_last_lookups fs/namei.c:3478 [inline]
#1: ffff88807320c030 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: path_openat+0x7b9/0x2dd0 fs/namei.c:3711
2 locks held by kworker/u4:9/7513:
#0: ffff8880b983a1d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:537
#1: ffff8880b9827748 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x57b/0x9a0 kernel/sched/psi.c:964
1 lock held by syz-executor.4/7597:
#0: ffff88801ebfe4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfe/0xa60 block/bdev.c:813
1 lock held by syz-executor.3/7644:
#0: ffff88801ebfe4c8 (&disk->open_mutex){+.+.}-{3:3}, at: sync_bdevs+0x1b0/0x320 block/bdev.c:1052
1 lock held by syz-executor.3/7645:
#0: ffff88801ebfe4c8 (&disk->open_mutex){+.+.}-{3:3}, at: sync_bdevs+0x1b0/0x320 block/bdev.c:1052
1 lock held by syz-executor.3/7649:
#0: ffff88801ebfe4c8 (&disk->open_mutex){+.+.}-{3:3}, at: sync_bdevs+0x1b0/0x320 block/bdev.c:1052
1 lock held by syz-executor.3/7654:
#0: ffff88801ebfe4c8 (&disk->open_mutex){+.+.}-{3:3}, at: sync_bdevs+0x1b0/0x320 block/bdev.c:1052
2 locks held by syz-executor.5/7763:
#0: ffff8880318b00e0 (&type->s_umount_key#31){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff88801ec687d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:364 [inline]
#1: ffff88801ec687d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2723
2 locks held by syz-executor.5/7764:
#0: ffff8880318b00e0 (&type->s_umount_key#31){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff88801ec687d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:364 [inline]
#1: ffff88801ec687d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2723
2 locks held by syz-executor.5/7765:
#0: ffff8880318b00e0 (&type->s_umount_key#31){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff88801ec687d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:364 [inline]
#1: ffff88801ec687d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2723
2 locks held by syz-executor.5/7768:
#0: ffff8880318b00e0 (&type->s_umount_key#31){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff88801ec687d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:364 [inline]
#1: ffff88801ec687d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2723
1 lock held by syz-executor.4/7770:
#0: ffff88801ebfe4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfe/0xa60 block/bdev.c:813
2 locks held by syz-executor.3/7821:
#0: ffff8880318b00e0 (&type->s_umount_key#31){++++}-{3:3}, at: iterate_supers+0xb0/0x1f0 fs/super.c:722
#1: ffff88801ec687d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:364 [inline]
#1: ffff88801ec687d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x264/0xaa0 fs/fs-writeback.c:2723
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc3-syzkaller-00008-g1fe4fd6f5cad #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1b1/0x290 lib/dump_stack.c:106
nmi_cpu_backtrace+0x46f/0x4f0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1ba/0x420 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xcd5/0xd20 kernel/hung_task.c:377
kthread+0x266/0x300 kernel/kthread.c:376
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: 7513 Comm: kworker/u4:9 Not tainted 6.2.0-rc3-syzkaller-00008-g1fe4fd6f5cad #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: phy11 ieee80211_iface_work
RIP: 0010:ieee80211_sta_get_rates+0x46f/0x770 net/mac80211/util.c:2349
Code: 84 c0 0f 85 e7 00 00 00 0f b7 1b 83 7c 24 10 1f 0f 87 12 01 00 00 e8 70 32 50 f7 4c 8b 24 24 03 5c 24 20 89 d8 99 f7 7c 24 40 <89> c3 89 c7 8b 6c 24 14 89 ee e8 f2 33 50 f7 39 eb 0f 85 0a ff ff
RSP: 0018:ffffc90017ecf818 EFLAGS: 00000202
RAX: 00000000000001e0 RBX: 00000000000001e0 RCX: ffff8880269b1d40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8a3ba8b2 R09: fffffbfff1d2cdfe
R10: fffffbfff1d2cdfe R11: 1ffffffff1d2cdfd R12: ffff88807e10b3d0
R13: 0000000000000001 R14: 000000000000000a R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055acf8a7b0c0 CR3: 000000000d08e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_update_sta_info net/mac80211/ibss.c:1003 [inline]
ieee80211_rx_bss_info net/mac80211/ibss.c:1118 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1186/0x2c40 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1581 [inline]
ieee80211_iface_work+0x773/0xcf0 net/mac80211/iface.c:1635
process_one_work+0x877/0xdb0 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308