INFO: task syz-executor.5:12121 blocked for more than 143 seconds.
Not tainted 6.7.0-rc6-syzkaller-00022-g55cb5f43689d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:25040 pid:12121 tgid:12121 ppid:5090 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
io_schedule+0x8c/0x100 kernel/sched/core.c:8998
folio_wait_bit_common+0x881/0x12b0 mm/filemap.c:1273
btrfs_page_mkwrite+0x4a4/0xd10 fs/btrfs/inode.c:8148
do_page_mkwrite+0x197/0x470 mm/memory.c:2944
wp_page_shared mm/memory.c:3339 [inline]
do_wp_page+0x1d07/0x4d40 mm/memory.c:3479
handle_pte_fault mm/memory.c:5055 [inline]
__handle_mm_fault mm/memory.c:5180 [inline]
handle_mm_fault+0x1b1c/0x6680 mm/memory.c:5345
do_user_addr_fault arch/x86/mm/fault.c:1364 [inline]
handle_page_fault arch/x86/mm/fault.c:1505 [inline]
exc_page_fault+0x456/0x870 arch/x86/mm/fault.c:1561
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7f8f97a5dc7c
RSP: 002b:00007ffca54bf138 EFLAGS: 00010206
RAX: 0000000020000440 RBX: 00007ffca54bf248 RCX: 00007f8f97600000
RDX: 000000000000001f RSI: 00007f8f97606fe0 RDI: 0000000020000440
RBP: 0000000000000001 R08: 00007f8f97a00000 R09: 0000000000000001
R10: 00007ffca558f080 R11: 0000000000012eb8 R12: 00007f8f97606fc0
R13: fffffffffffffffe R14: 00007f8f97600000 R15: 00007f8f97606fc8
INFO: task syz-executor.5:12161 blocked for more than 144 seconds.
Not tainted 6.7.0-rc6-syzkaller-00022-g55cb5f43689d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:22072 pid:12161 tgid:12121 ppid:5090 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
wait_extent_bit fs/btrfs/extent-io-tree.c:799 [inline]
lock_extent+0x69d/0x850 fs/btrfs/extent-io-tree.c:1843
btrfs_page_mkwrite+0x5bd/0xd10 fs/btrfs/inode.c:8158
do_page_mkwrite+0x197/0x470 mm/memory.c:2944
wp_page_shared mm/memory.c:3339 [inline]
do_wp_page+0x1d07/0x4d40 mm/memory.c:3479
handle_pte_fault mm/memory.c:5055 [inline]
__handle_mm_fault mm/memory.c:5180 [inline]
handle_mm_fault+0x1b1c/0x6680 mm/memory.c:5345
do_user_addr_fault arch/x86/mm/fault.c:1413 [inline]
handle_page_fault arch/x86/mm/fault.c:1505 [inline]
exc_page_fault+0x2ad/0x870 arch/x86/mm/fault.c:1561
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0010:rep_movs_alternative+0x33/0x70 arch/x86/lib/copy_user_64.S:58
Code: 40 83 f9 08 73 21 85 c9 74 0f 8a 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 06 <48> 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 73 e8 eb
RSP: 0018:ffffc9000def7550 EFLAGS: 00050206
RAX: 0000000000000000 RBX: 0000000020000118 RCX: 0000000000000038
RDX: 0000000000000000 RSI: ffffc9000def7600 RDI: 00000000200000e0
RBP: ffffc9000def76b0 R08: ffffc9000def7637 R09: 1ffff92001bdeec6
R10: dffffc0000000000 R11: fffff52001bdeec7 R12: 0000000000000038
R13: ffffc9000def7600 R14: 00000000200000e0 R15: ffffc9000def7600
copy_user_generic arch/x86/include/asm/uaccess_64.h:112 [inline]
raw_copy_to_user arch/x86/include/asm/uaccess_64.h:133 [inline]
_copy_to_user+0x86/0xa0 lib/usercopy.c:41
copy_to_user include/linux/uaccess.h:191 [inline]
fiemap_fill_next_extent+0x235/0x410 fs/ioctl.c:145
emit_last_fiemap_cache fs/btrfs/extent_io.c:2511 [inline]
extent_fiemap+0x1b9c/0x1fe0 fs/btrfs/extent_io.c:3038
btrfs_fiemap+0x178/0x1e0 fs/btrfs/inode.c:7830
ioctl_fiemap fs/ioctl.c:220 [inline]
do_vfs_ioctl+0x19ea/0x2b40 fs/ioctl.c:811
__do_sys_ioctl fs/ioctl.c:869 [inline]
__se_sys_ioctl+0x81/0x170 fs/ioctl.c:857
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f8f97a7cbe9
RSP: 002b:00007f8f988480c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f8f97b9c120 RCX: 00007f8f97a7cbe9
RDX: 00000000200000c0 RSI: 00000000c020660b RDI: 0000000000000005
RBP: 00007f8f97ac847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8f97b9c120 R15: 00007ffca54bf058
Showing all locks held in the system:
1 lock held by pool_workqueue_/3:
#0: ffffffff8d9334b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#0: ffffffff8d9334b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:996
1 lock held by khungtaskd/29:
#0: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
6 locks held by kworker/u4:2/42:
2 locks held by getty/4813:
#0: ffff8880262fc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
3 locks held by syz-executor.3/5097:
2 locks held by kworker/0:5/5157:
#0: ffff888012c72938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2602 [inline]
#0: ffff888012c72938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2700
#1: ffffc900045dfd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2602 [inline]
#1: ffffc900045dfd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2700
3 locks held by syz-executor.5/12121:
#0: ffff888079992c40 (&vma->vm_lock->lock){++++}-{3:3}, at: vma_start_read include/linux/mm.h:663 [inline]
#0: ffff888079992c40 (&vma->vm_lock->lock){++++}-{3:3}, at: lock_vma_under_rcu+0x2f6/0x6f0 mm/memory.c:5501
#1: ffff88807e138510 (sb_pagefaults#4){.+.+}-{0:0}, at: do_page_mkwrite+0x197/0x470 mm/memory.c:2944
#2: ffff888046655798 (&ei->i_mmap_lock){++++}-{3:3}, at: btrfs_page_mkwrite+0x49c/0xd10 fs/btrfs/inode.c:8147
4 locks held by syz-executor.5/12161:
#0: ffff888046655910 (&sb->s_type->i_mutex_key#25){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:812 [inline]
#0: ffff888046655910 (&sb->s_type->i_mutex_key#25){++++}-{3:3}, at: btrfs_inode_lock+0x60/0xd0 fs/btrfs/inode.c:370
#1: ffff8880290bf3a0 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:165 [inline]
#1: ffff8880290bf3a0 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5372 [inline]
#1: ffff8880290bf3a0 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x32/0x2d0 mm/memory.c:5432
#2: ffff88807e138510 (sb_pagefaults#4){.+.+}-{0:0}, at: do_page_mkwrite+0x197/0x470 mm/memory.c:2944
#3: ffff888046655798 (&ei->i_mmap_lock){++++}-{3:3}, at: btrfs_page_mkwrite+0x49c/0xd10 fs/btrfs/inode.c:8147
3 locks held by syz-executor.5/15019:
#0: ffff88814c952418 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write_file+0x61/0x200 fs/namespace.c:448
#1: ffff88807d88de00 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#1: ffff88807d88de00 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: vfs_fileattr_set+0x139/0xd40 fs/ioctl.c:682
#2: ffff88814c954b98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages_down_write fs/ext4/ext4.h:1779 [inline]
#2: ffff88814c954b98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_ind_migrate+0x26a/0x8d0 fs/ext4/migrate.c:625
3 locks held by syz-executor.5/15065:
#0: ffff8880320c4348 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x2b0/0x340 fs/file.c:1177
#1: ffff88814c952418 (sb_writers#4){.+.+}-{0:0}, at: vfs_write+0x223/0xb20 fs/read_write.c:580
#2: ffff88807d88de00 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88807d88de00 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_buffered_write_iter+0x97/0x350 fs/ext4/file.c:294
3 locks held by syz-executor.5/15066:
#0: ffff8880320c4fc8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x2b0/0x340 fs/file.c:1177
#1: ffff88814c952418 (sb_writers#4){.+.+}-{0:0}, at: vfs_write+0x223/0xb20 fs/read_write.c:580
#2: ffff88807d88de00 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#2: ffff88807d88de00 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_buffered_write_iter+0x97/0x350 fs/ext4/file.c:294
1 lock held by syz-executor.0/15037:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc6-syzkaller-00022-g55cb5f43689d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
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+0x198/0x310 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2858 Comm: kworker/u4:9 Not tainted 6.7.0-rc6-syzkaller-00022-g55cb5f43689d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:check_kcov_mode kernel/kcov.c:184 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:236 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x34/0x80 kernel/kcov.c:311
Code: 8b 0d 50 4d 75 7e 65 8b 05 51 4d 75 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 57 83 b9 fc 15 00 00 00 74 4e 8b 81 d8 15 00 00 <83> f8 03 75 43 48 8b 91 e0 15 00 00 44 8b 89 dc 15 00 00 49 c1 e1
RSP: 0018:ffffc9000a4ff870 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000bc1 RCX: ffff888026f53b80
RDX: 0000000000000000 RSI: 0000000000000bc1 RDI: 000000000000003f
RBP: ffffc9000a4ff9f0 R08: ffffffff817ceae8 R09: fffff5200149fee8
R10: dffffc0000000000 R11: fffff5200149fee8 R12: 00000001000073a4
R13: dffffc0000000000 R14: ffffc9000a4ff980 R15: 00000001000067e3
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff145faed8 CR3: 000000000d731000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
calc_wheel_index+0x28/0x330 kernel/time/timer.c:539
__mod_timer+0xc6d/0xf40 kernel/time/timer.c:1064
ieee80211_sta_merge_ibss net/mac80211/ibss.c:1269 [inline]
ieee80211_ibss_work+0x4f0/0x14b0 net/mac80211/ibss.c:1669
cfg80211_wiphy_work+0x21e/0x250 net/wireless/core.c:437
process_one_work kernel/workqueue.c:2627 [inline]
process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2700
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2781
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242