INFO: task kworker/u4:5:2604 blocked for more than 147 seconds.
Not tainted 5.15.104-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:5 state:D stack:20152 pid: 2604 ppid: 2 flags:0x00004000
Workqueue: writeback wb_workfn (flush-7:0)
Call Trace:
context_switch kernel/sched/core.c:5023 [inline]
__schedule+0x12c4/0x4590 kernel/sched/core.c:6369
schedule+0x11b/0x1f0 kernel/sched/core.c:6452
rwsem_down_write_slowpath+0xebb/0x15c0 kernel/locking/rwsem.c:1157
__down_write_common kernel/locking/rwsem.c:1284 [inline]
__down_write kernel/locking/rwsem.c:1293 [inline]
down_write+0x164/0x170 kernel/locking/rwsem.c:1542
f2fs_balance_fs+0x4d4/0x6a0 fs/f2fs/segment.c:529
f2fs_write_inode+0x4c3/0x540 fs/f2fs/inode.c:727
write_inode fs/fs-writeback.c:1475 [inline]
__writeback_single_inode+0x644/0xe30 fs/fs-writeback.c:1680
writeback_sb_inodes+0xbf0/0x1a50 fs/fs-writeback.c:1905
__writeback_inodes_wb+0x114/0x400 fs/fs-writeback.c:1976
wb_writeback+0x465/0xc50 fs/fs-writeback.c:2081
wb_check_old_data_flush fs/fs-writeback.c:2181 [inline]
wb_do_writeback fs/fs-writeback.c:2234 [inline]
wb_workfn+0xc55/0x1130 fs/fs-writeback.c:2263
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2306
worker_thread+0xaca/0x1280 kernel/workqueue.c:2453
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Showing all locks held in the system:
4 locks held by kworker/u4:0/9:
3 locks held by kworker/1:0/21:
#0:
ffff888011c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2279
#1: ffffc90000db7d20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2281
#2:
ffffffff8c91fe68 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
ffffffff8c91fe68 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x350/0x740 kernel/rcu/tree_exp.h:840
2 locks held by kworker/1:1/25:
#0: ffff888011c66538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2279
#1: ffffc90000dffd20 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2281
1 lock held by khungtaskd/27:
#0: ffffffff8c91b920 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
4 locks held by kworker/u4:5/2604:
#0: ffff8881427ec138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2279
#1: ffffc9000b847d20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2281
#2: ffff8880779c00e0 (&type->s_umount_key#61){++++}-{3:3}, at: trylock_super+0x1b/0xf0 fs/super.c:418
#3: ffff8880310f5108 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_balance_fs+0x4d4/0x6a0 fs/f2fs/segment.c:529
2 locks held by getty/3267:
#0: ffff88814b00f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc90001ed62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1da0 drivers/tty/n_tty.c:2147
3 locks held by kworker/0:7/3682:
#0: ffff888011c64d38 ((wq_completion)events){+.+.}-{0:0}
, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2279
#1:
ffffc9000318fd20
(
fqdir_free_work
){+.+.}-{0:0}
, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2281
#2:
ffffffff8c91fd70
(
rcu_state.barrier_mutex
){+.+.}-{3:3}
, at: rcu_barrier+0x9c/0x4e0 kernel/rcu/tree.c:3994
6 locks held by syz-executor.0/5704:
1 lock held by syz-executor.4/8054:
#0:
ffffffff8c91fd70
(
rcu_state.barrier_mutex
){+.+.}-{3:3}
, at: rcu_barrier+0x9c/0x4e0 kernel/rcu/tree.c:3994
2 locks held by syz-executor.5/8076:
#0:
ffffffff8c7db868 (sched_core_mutex){+.+.}-{3:3}, at: sched_core_get+0x47/0x1d0 kernel/sched/core.c:329
#1: ffffffff8c91fe68 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
#1: ffffffff8c91fe68 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x350/0x740 kernel/rcu/tree_exp.h:840
1 lock held by syz-executor.2/8083:
#0: ffffffff8d9d37e8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x346/0xf60 net/core/dev_ioctl.c:540
1 lock held by syz-executor.3/8085:
#0: ffffffff8d9d37e8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x598/0xf60 net/core/dev_ioctl.c:611
1 lock held by syz-executor.3/8086:
#0: ffffffff8d9d37e8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x346/0xf60 net/core/dev_ioctl.c:540
1 lock held by syz-executor.1/8090:
#0: ffffffff8d9d37e8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x598/0xf60 net/core/dev_ioctl.c:611
1 lock held by syz-executor.1/8092:
#0: ffffffff8d9d37e8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x346/0xf60 net/core/dev_ioctl.c:540
1 lock held by syz-executor.0/8098:
#0: ffffffff8d9d37e8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x598/0xf60 net/core/dev_ioctl.c:611
1 lock held by syz-executor.0/8100:
#0: ffffffff8d9d37e8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x346/0xf60 net/core/dev_ioctl.c:540
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.104-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xe72/0xeb0 kernel/hung_task.c:295
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3832 Comm: kworker/u4:11 Not tainted 5.15.104-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Workqueue: phy3 ieee80211_iface_work
RIP: 0010:memset_erms+0xb/0x10 arch/x86/lib/memset_64.S:65
Code: 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 f3 aa <4c> 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01 01 01
RSP: 0018:ffffc90002fbf1e0 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffc90002fbf2f0 RCX: 0000000000000000
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc90002fbf300
RBP: ffffffff8ede8012 R08: dffffc0000000000 R09: ffffc90002fbf2f0
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1dbd002
R13: 1ffffffff1dbd002 R14: ffffffff8ede800e R15: ffffc90002fbf2a0
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2de24000 CR3: 000000002caf4000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
unwind_next_frame+0xbc8/0x1fa0 arch/x86/kernel/unwind_orc.c:547
arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
____kasan_kmalloc+0xba/0xf0 mm/kasan/common.c:513
kasan_kmalloc include/linux/kasan.h:264 [inline]
__kmalloc+0x168/0x300 mm/slub.c:4407
kmalloc include/linux/slab.h:596 [inline]
kzalloc include/linux/slab.h:721 [inline]
ieee802_11_parse_elems_crc+0xb3/0x1130 net/mac80211/util.c:1478
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2238 [inline]
ieee80211_bss_info_update+0x86d/0xc80 net/mac80211/scan.c:212
ieee80211_rx_bss_info net/mac80211/ibss.c:1123 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1614 [inline]
ieee80211_ibss_rx_queued_mgmt+0x175e/0x2af0 net/mac80211/ibss.c:1643
ieee80211_iface_process_skb net/mac80211/iface.c:1441 [inline]
ieee80211_iface_work+0x78f/0xcc0 net/mac80211/iface.c:1495
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2306
worker_thread+0xaca/0x1280 kernel/workqueue.c:2453
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298