INFO: task kworker/u4:14:20197 blocked for more than 152 seconds.
Not tainted 6.2.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:14 state:D stack:23552 pid:20197 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn (flush-7:4)
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
queue_log_writer+0x293/0x2f0 fs/reiserfs/journal.c:2980
check_journal_end fs/reiserfs/journal.c:3676 [inline]
do_journal_end+0x908/0x4af0 fs/reiserfs/journal.c:4042
reiserfs_write_inode+0x27e/0x2d0 fs/reiserfs/inode.c:1779
write_inode fs/fs-writeback.c:1451 [inline]
__writeback_single_inode+0xcfc/0x1440 fs/fs-writeback.c:1663
writeback_sb_inodes+0x54d/0xf90 fs/fs-writeback.c:1889
wb_writeback+0x2c5/0xd70 fs/fs-writeback.c:2063
wb_do_writeback fs/fs-writeback.c:2206 [inline]
wb_workfn+0x2e0/0x12f0 fs/fs-writeback.c:2246
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task syz-executor.4:25250 blocked for more than 152 seconds.
Not tainted 6.2.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24520 pid:25250 ppid:14175 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
bit_wait+0x16/0xe0 kernel/sched/wait_bit.c:199
__wait_on_bit+0x64/0x180 kernel/sched/wait_bit.c:49
__inode_wait_for_writeback+0x153/0x1f0 fs/fs-writeback.c:1472
inode_wait_for_writeback+0x26/0x40 fs/fs-writeback.c:1484
evict+0x2b7/0x6b0 fs/inode.c:661
iput_final fs/inode.c:1747 [inline]
iput.part.0+0x59b/0x880 fs/inode.c:1773
iput+0x5c/0x80 fs/inode.c:1763
dentry_unlink_inode+0x2b1/0x460 fs/dcache.c:401
d_delete fs/dcache.c:2565 [inline]
d_delete+0x16f/0x1c0 fs/dcache.c:2554
xattr_unlink+0x139/0x190 fs/reiserfs/xattr.c:96
lookup_and_delete_xattr fs/reiserfs/xattr.c:494 [inline]
reiserfs_xattr_set_handle+0x83c/0xb00 fs/reiserfs/xattr.c:529
reiserfs_xattr_set+0x454/0x5b0 fs/reiserfs/xattr.c:633
trusted_set+0xa7/0xd0 fs/reiserfs/xattr_trusted.c:31
__vfs_removexattr+0x155/0x1c0 fs/xattr.c:497
__vfs_removexattr_locked+0x1b0/0x440 fs/xattr.c:532
vfs_removexattr+0xcf/0x260 fs/xattr.c:554
ovl_do_removexattr fs/overlayfs/overlayfs.h:272 [inline]
ovl_removexattr fs/overlayfs/overlayfs.h:280 [inline]
ovl_make_workdir fs/overlayfs/super.c:1361 [inline]
ovl_get_workdir fs/overlayfs/super.c:1444 [inline]
ovl_fill_super+0x20ba/0x6330 fs/overlayfs/super.c:2000
mount_nodev+0x64/0x120 fs/super.c:1405
legacy_get_tree+0x109/0x220 fs/fs_context.c:610
vfs_get_tree+0x8d/0x2f0 fs/super.c:1489
do_new_mount fs/namespace.c:3145 [inline]
path_mount+0x132a/0x1e20 fs/namespace.c:3475
do_mount fs/namespace.c:3488 [inline]
__do_sys_mount fs/namespace.c:3697 [inline]
__se_sys_mount fs/namespace.c:3674 [inline]
__x64_sys_mount+0x283/0x300 fs/namespace.c:3674
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f8ab048c0c9
RSP: 002b:00007f8ab1240168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8ab05abf80 RCX: 00007f8ab048c0c9
RDX: 0000000020000080 RSI: 00000000200000c0 RDI: 0000000000000000
RBP: 00007f8ab04e7ae9 R08: 0000000020000480 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffefa58b2cf R14: 00007f8ab1240300 R15: 0000000000022000
INFO: task syz-executor.4:25252 blocked for more than 152 seconds.
Not tainted 6.2.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:27424 pid:25252 ppid:14175 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
wb_wait_for_completion+0x182/0x240 fs/fs-writeback.c:192
sync_inodes_sb+0x1aa/0x9e0 fs/fs-writeback.c:2725
sync_filesystem.part.0+0xe6/0x1d0 fs/sync.c:64
sync_filesystem+0x8f/0xc0 fs/sync.c:43
reiserfs_remount+0x129/0x1540 fs/reiserfs/super.c:1445
legacy_reconfigure+0x119/0x180 fs/fs_context.c:633
reconfigure_super+0x40c/0xa30 fs/super.c:935
do_remount fs/namespace.c:2807 [inline]
path_mount+0x1830/0x1e20 fs/namespace.c:3467
do_mount fs/namespace.c:3488 [inline]
__do_sys_mount fs/namespace.c:3697 [inline]
__se_sys_mount fs/namespace.c:3674 [inline]
__x64_sys_mount+0x283/0x300 fs/namespace.c:3674
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f8ab048d5fa
RSP: 002b:00007f8ab121ef88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8ab048d5fa
RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 0000000000000000
RBP: 00007f8ab121f020 R08: 00007f8ab121f020 R09: 0000000001a484bc
R10: 0000000001a484bc R11: 0000000000000206 R12: 00000000200000c0
R13: 0000000020000100 R14: 00007f8ab121efe0 R15: 00000000200007c0
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/11:
#0: ffffffff8c78dff0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/12:
#0: ffffffff8c78dcf0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/27:
#0: ffffffff8c78eb40 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264 kernel/locking/lockdep.c:6494
2 locks held by getty/4738:
#0: ffff88802a7cb098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900020482f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
2 locks held by kworker/u4:2/20172:
2 locks held by kworker/u4:14/20197:
#0: ffff888140f96938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888140f96938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888140f96938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888140f96938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888140f96938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888140f96938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc9000500fda8 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
4 locks held by syz-executor.4/25250:
#0: ffff888035f7c0e0 (&type->s_umount_key#88/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228
#1: ffff88807985e460 (sb_writers#18){.+.+}-{0:0}, at: ovl_make_workdir fs/overlayfs/super.c:1290 [inline]
#1: ffff88807985e460 (sb_writers#18){.+.+}-{0:0}, at: ovl_get_workdir fs/overlayfs/super.c:1444 [inline]
#1: ffff88807985e460 (sb_writers#18){.+.+}-{0:0}, at: ovl_fill_super+0x19d6/0x6330 fs/overlayfs/super.c:2000
#2: ffff8880484dd320 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#2: ffff8880484dd320 (&type->i_mutex_dir_key#9){++++}-{3:3}, at: vfs_removexattr+0xbb/0x260 fs/xattr.c:553
#3: ffff88803b1423a0 (&type->i_mutex_dir_key#9/3){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:791 [inline]
#3: ffff88803b1423a0 (&type->i_mutex_dir_key#9/3){+.+.}-{3:3}, at: lookup_and_delete_xattr fs/reiserfs/xattr.c:486 [inline]
#3: ffff88803b1423a0 (&type->i_mutex_dir_key#9/3){+.+.}-{3:3}, at: reiserfs_xattr_set_handle+0x7ab/0xb00 fs/reiserfs/xattr.c:529
2 locks held by syz-executor.4/25252:
#0: ffff88807985e0e0 (&type->s_umount_key#81){++++}-{3:3}, at: do_remount fs/namespace.c:2804 [inline]
#0: ffff88807985e0e0 (&type->s_umount_key#81){++++}-{3:3}, at: path_mount+0x13e0/0x1e20 fs/namespace.c:3467
#1: ffff88801f3e07d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:364 [inline]
#1: ffff88801f3e07d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x190/0x9e0 fs/fs-writeback.c:2723
1 lock held by syz-executor.5/26326:
#0: ffff88807985e0e0 (&type->s_umount_key#81){++++}-{3:3}, at: iterate_supers+0xdf/0x2a0 fs/super.c:722
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.2.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x333/0x3c0 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+0xc75/0xfc0 kernel/hung_task.c:377
kthread+0x2e8/0x3a0 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: 15151 Comm: kworker/u4:37 Not tainted 6.2.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: phy25 ieee80211_iface_work
RIP: 0010:cfg80211_find_elem_match+0x4/0x1e0 net/wireless/scan.c:1234
Code: ff 48 89 df e8 ad dc a8 f8 e9 08 ff ff ff e8 a3 dc a8 f8 e9 01 fe ff ff e8 99 dc a8 f8 eb 9c 0f 1f 80 00 00 00 00 f3 0f 1e fa <41> 57 41 89 ff 41 56 41 55 41 54 55 89 d5 53 48 89 f3 48 83 ec 28
RSP: 0018:ffffc9000505f890 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000078 RCX: ffffc9000505f990
RDX: 0000000000000000 RSI: ffff88803c1ffa58 RDI: 00000000000000ff
RBP: ffffc9000505fca0 R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000000b R11: 0000000000094001 R12: ffff888023a08050
R13: 0000000000000080 R14: ffffc9000505fbb0 R15: 000000000000004c
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c01384b000 CR3: 000000007e1ba000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
cfg80211_find_ext_elem include/net/cfg80211.h:6351 [inline]
ieee802_11_parse_elems_full+0x766/0x1330 net/mac80211/util.c:1634
ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2260 [inline]
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2267 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1605 [inline]
ieee80211_ibss_rx_queued_mgmt+0xd58/0x3160 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1583 [inline]
ieee80211_iface_work+0xa4d/0xd70 net/mac80211/iface.c:1637
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308