INFO: task syz-executor.1:32742 blocked for more than 144 seconds.
Not tainted 6.4.0-rc1-syzkaller-00071-g105131df9c3b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:24640 pid:32742 ppid:28503 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xc9a/0x5880 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
io_schedule+0xbe/0x130 kernel/sched/core.c:8979
bit_wait_io+0x16/0xe0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0x11f/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0xd9/0x110 kernel/sched/wait_bit.c:117
wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline]
__lock_buffer fs/buffer.c:70 [inline]
lock_buffer include/linux/buffer_head.h:406 [inline]
__sync_dirty_buffer+0x30e/0x380 fs/buffer.c:2807
__ext4_handle_dirty_metadata+0x2b7/0x8e0 fs/ext4/ext4_jbd2.c:387
ext4_convert_inline_data_nolock+0x6e6/0xf10 fs/ext4/inline.c:1252
ext4_convert_inline_data+0x51a/0x5f0 fs/ext4/inline.c:2063
ext4_page_mkwrite+0x360/0x1680 fs/ext4/inode.c:6044
do_page_mkwrite+0x1a1/0x690 mm/memory.c:2931
do_shared_fault mm/memory.c:4595 [inline]
do_fault mm/memory.c:4663 [inline]
do_pte_missing mm/memory.c:3647 [inline]
handle_pte_fault mm/memory.c:4947 [inline]
__handle_mm_fault+0x254b/0x41c0 mm/memory.c:5089
handle_mm_fault+0x2af/0x9f0 mm/memory.c:5243
faultin_page mm/gup.c:925 [inline]
__get_user_pages+0x60a/0x10e0 mm/gup.c:1147
__get_user_pages_locked mm/gup.c:1381 [inline]
__gup_longterm_locked+0x720/0x2420 mm/gup.c:2079
pin_user_pages_remote+0x101/0x160 mm/gup.c:3124
process_vm_rw_single_vec mm/process_vm_access.c:105 [inline]
process_vm_rw_core.constprop.0+0x43b/0x990 mm/process_vm_access.c:215
process_vm_rw+0x29c/0x300 mm/process_vm_access.c:283
__do_sys_process_vm_writev mm/process_vm_access.c:303 [inline]
__se_sys_process_vm_writev mm/process_vm_access.c:298 [inline]
__x64_sys_process_vm_writev+0xe3/0x1b0 mm/process_vm_access.c:298
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: 0033:0x7fe280a8c169
RSP: 002b:00007fe281879168 EFLAGS: 00000246 ORIG_RAX: 0000000000000137
RAX: ffffffffffffffda RBX: 00007fe280babf80 RCX: 00007fe280a8c169
RDX: 0000000000000001 RSI: 000000002001a580 RDI: 000000000000026d
RBP: 00007fe280ae7ca1 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000200002c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc5fa7ee0f R14: 00007fe281879300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8c798430 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8c798130 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/27:
#0: ffffffff8c799040 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6545
2 locks held by getty/4748:
#0: ffff88802c132098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2176
3 locks held by kworker/u4:5/5134:
3 locks held by kworker/0:14/18154:
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
#0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1: ffffc900101efdb0 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
#2: ffff888028f3d240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1d5/0x24a0 drivers/net/netdevsim/fib.c:1489
3 locks held by kworker/u4:9/19161:
#0: ffff888145a7e938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888145a7e938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888145a7e938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
#0: ffff888145a7e938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
#0: ffff888145a7e938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
#0: ffff888145a7e938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1: ffffc9000bcdfdb0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
#2: ffff8880142760e0 (&type->s_umount_key#40){.+.+}-{3:3}, at: trylock_super+0x21/0x110 fs/super.c:414
2 locks held by kworker/u4:26/29133:
4 locks held by syz-executor.1/32742:
#0: ffff88807e3f3768 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:142 [inline]
#0: ffff88807e3f3768 (&mm->mmap_lock){++++}-{3:3}, at: process_vm_rw_single_vec mm/process_vm_access.c:104 [inline]
#0: ffff88807e3f3768 (&mm->mmap_lock){++++}-{3:3}, at: process_vm_rw_core.constprop.0+0x40a/0x990 mm/process_vm_access.c:215
#1: ffff88807c09e558 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x1a1/0x690 mm/memory.c:2931
#2: ffff88803c462da0 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline]
#2: ffff88803c462da0 (mapping.invalidate_lock){++++}-{3:3}, at: ext4_page_mkwrite+0x358/0x1680 fs/ext4/inode.c:6042
#3: ffff88803c4628c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
#3: ffff88803c4628c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x352/0x5f0 fs/ext4/inline.c:2061
1 lock held by syz-executor.1/359:
#0: ffff8881413254c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x95/0xb80 block/bdev.c:747
1 lock held by syz-executor.4/1161:
#0: ffff8881413254c8 (&disk->open_mutex){+.+.}-{3:3}, at: sync_bdevs+0xed/0x340 block/bdev.c:986
2 locks held by syz-executor.4/1241:
#0: ffff88807c09e0e0 (&type->s_umount_key#31){++++}-{3:3}, at: iterate_supers+0xdf/0x2a0 fs/super.c:743
#1: ffff88801ee287d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:364 [inline]
#1: ffff88801ee287d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x190/0xa60 fs/fs-writeback.c:2728
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.4.0-rc1-syzkaller-00071-g105131df9c3b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
nmi_cpu_backtrace+0x29c/0x350 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x2a4/0x300 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+0xe16/0x1090 kernel/hung_task.c:379
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5134 Comm: kworker/u4:5 Not tainted 6.4.0-rc1-syzkaller-00071-g105131df9c3b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Workqueue: phy12 ieee80211_iface_work
RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:30 [inline]
RIP: 0010:__orc_find+0x6f/0xf0 arch/x86/kernel/unwind_orc.c:52
Code: 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 48 48 63 03 48 01
RSP: 0018:ffffc90004dcf728 EFLAGS: 00000212
RAX: 1ffffffff1d11615 RBX: ffffffff8e88b0a8 RCX: ffffffff8130a9ef
RDX: 0000000000000000 RSI: ffffffff8effed06 RDI: ffffffff8e88b0a0
RBP: ffffffff8e88b0a0 R08: ffffffff8effed06 R09: ffffc90004dcf828
R10: ffffc90004dcf830 R11: 0000000000094001 R12: ffffffff8e88b0b0
R13: ffffffff8e88b0a0 R14: ffffffff8e88b0a0 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbc52663866 CR3: 000000000c571000 CR4: 0000000000350ee0
Call Trace:
orc_find arch/x86/kernel/unwind_orc.c:192 [inline]
unwind_next_frame+0x2ac/0x1e30 arch/x86/kernel/unwind_orc.c:466
__unwind_start+0x51f/0x800 arch/x86/kernel/unwind_orc.c:732
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0x60/0xf0 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x90/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
kasan_save_free_info+0x2e/0x40 mm/kasan/generic.c:521
____kasan_slab_free mm/kasan/common.c:236 [inline]
____kasan_slab_free+0x160/0x1c0 mm/kasan/common.c:200
kasan_slab_free include/linux/kasan.h:162 [inline]
slab_free_hook mm/slub.c:1781 [inline]
slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1807
slab_free mm/slub.c:3786 [inline]
kmem_cache_free+0xe9/0x480 mm/slub.c:3808
kfree_skbmem+0xef/0x1b0 net/core/skbuff.c:971
__kfree_skb net/core/skbuff.c:1029 [inline]
kfree_skb_reason+0x186/0x3c0 net/core/skbuff.c:1064
kfree_skb include/linux/skbuff.h:1236 [inline]
ieee80211_iface_work+0x357/0xd70 net/mac80211/iface.c:1650
process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405
worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308