INFO: task syz-executor.2:19248 blocked for more than 143 seconds.
Not tainted 6.1.0-rc7-syzkaller-00012-gca57f02295f1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:23816 pid:19248 ppid:3680 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6521
schedule+0xcb/0x190 kernel/sched/core.c:6597
io_schedule+0x83/0x100 kernel/sched/core.c:8741
folio_wait_bit_common+0x83a/0x12a0 mm/filemap.c:1296
btrfs_page_mkwrite+0x41f/0xc80 fs/btrfs/inode.c:8444
do_page_mkwrite+0x19e/0x5e0 mm/memory.c:2978
wp_page_shared+0x15e/0x380 mm/memory.c:3324
handle_pte_fault mm/memory.c:4973 [inline]
__handle_mm_fault mm/memory.c:5097 [inline]
handle_mm_fault+0x1e72/0x3630 mm/memory.c:5218
do_user_addr_fault+0x69b/0xcb0 arch/x86/mm/fault.c:1428
handle_page_fault arch/x86/mm/fault.c:1519 [inline]
exc_page_fault+0x7a/0x110 arch/x86/mm/fault.c:1575
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7fcf3c886c26
RSP: 002b:00007ffc321c0888 EFLAGS: 00010206
RAX: 0000000020000240 RBX: 0000000000000000 RCX: 006c6c756e797474
RDX: 000000000000000d RSI: 7974742f7665642f RDI: 0000000020000240
RBP: 00007ffc321c0948 R08: 00007fcf3c800000 R09: 00007fcf3c400000
R10: 00007fcf3c407248 R11: 0000000000000246 R12: 0000000000268138
R13: 00007ffc321c0970 R14: 00007fcf3c9ac120 R15: 0000000000000032
INFO: task syz-executor.2:19289 blocked for more than 143 seconds.
Not tainted 6.1.0-rc7-syzkaller-00012-gca57f02295f1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:21536 pid:19289 ppid:3680 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6521
schedule+0xcb/0x190 kernel/sched/core.c:6597
wait_on_state fs/btrfs/extent-io-tree.c:707 [inline]
wait_extent_bit+0x467/0x610 fs/btrfs/extent-io-tree.c:740
lock_extent+0x184/0x210 fs/btrfs/extent-io-tree.c:1651
btrfs_page_mkwrite+0x533/0xc80 fs/btrfs/inode.c:8454
do_page_mkwrite+0x19e/0x5e0 mm/memory.c:2978
wp_page_shared+0x15e/0x380 mm/memory.c:3324
handle_pte_fault mm/memory.c:4973 [inline]
__handle_mm_fault mm/memory.c:5097 [inline]
handle_mm_fault+0x1e72/0x3630 mm/memory.c:5218
do_user_addr_fault+0x69b/0xcb0 arch/x86/mm/fault.c:1428
handle_page_fault arch/x86/mm/fault.c:1519 [inline]
exc_page_fault+0x7a/0x110 arch/x86/mm/fault.c:1575
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0010:copy_user_short_string+0xd/0x40 arch/x86/lib/copy_user_64.S:233
Code: 74 0a 89 d1 f3 a4 89 c8 0f 01 ca c3 89 d0 0f 01 ca c3 01 ca eb e7 0f 1f 80 00 00 00 00 89 d1 83 e2 07 c1 e9 03 74 12 4c 8b 06 <4c> 89 07 48 8d 76 08 48 8d 7f 08 ff c9 75 ee 21 d2 74 10 89 d1 8a
RSP: 0018:ffffc90015de7550 EFLAGS: 00050202
RAX: ffffffff8438ad01 RBX: 00007fffffffefc8 RCX: 0000000000000007
RDX: 0000000000000000 RSI: ffffc90015de7600 RDI: 0000000020000560
RBP: ffffc90015de76b0 R08: 0000000000000000 R09: fffff52002bbcec7
R10: fffff52002bbcec7 R11: 1ffff92002bbcec0 R12: 0000000000000038
R13: ffffc90015de7600 R14: 0000000020000560 R15: ffffc90015de7600
copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
raw_copy_to_user arch/x86/include/asm/uaccess_64.h:58 [inline]
_copy_to_user+0xe9/0x130 lib/usercopy.c:34
copy_to_user include/linux/uaccess.h:169 [inline]
fiemap_fill_next_extent+0x22e/0x410 fs/ioctl.c:144
emit_last_fiemap_cache fs/btrfs/extent_io.c:3589 [inline]
extent_fiemap+0x1e26/0x21c0 fs/btrfs/extent_io.c:4119
btrfs_fiemap+0x172/0x1e0 fs/btrfs/inode.c:8126
ioctl_fiemap fs/ioctl.c:219 [inline]
do_vfs_ioctl+0x187f/0x29a0 fs/ioctl.c:810
__do_sys_ioctl fs/ioctl.c:868 [inline]
__se_sys_ioctl+0x83/0x170 fs/ioctl.c:856
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: 0033:0x7fcf3c88c0d9
RSP: 002b:00007fcf3d52e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fcf3c9ac050 RCX: 00007fcf3c88c0d9
RDX: 0000000020000540 RSI: 00000000c020660b RDI: 0000000000000004
RBP: 00007fcf3c8e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc321c080f R14: 00007fcf3d52e300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d1272b0 (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: ffffffff8d127ab0 (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: ffffffff8d1270e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:3/46:
#0: ffff8880b9839dd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:537
#1: ffff8880b9827788 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x57b/0x9a0 kernel/sched/psi.c:897
#2: ffff8880b9828358 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x12a/0x270 kernel/time/timer.c:999
2 locks held by getty/3309:
#0: ffff888017c13098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 drivers/tty/n_tty.c:2177
3 locks held by syz-executor.2/19248:
#0: ffff88807a1fdf98 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#0: ffff88807a1fdf98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x2e2/0xcb0 arch/x86/mm/fault.c:1369
#1: ffff88807e81c558 (sb_pagefaults#3){.+.+}-{0:0}, at: do_page_mkwrite+0x19e/0x5e0 mm/memory.c:2978
#2: ffff88802f8017a8 (&ei->i_mmap_lock){++++}-{3:3}, at: btrfs_page_mkwrite+0x417/0xc80 fs/btrfs/inode.c:8443
3 locks held by syz-executor.2/19289:
#0: ffff88807a1fdf98 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#0: ffff88807a1fdf98 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x2e2/0xcb0 arch/x86/mm/fault.c:1369
#1: ffff88807e81c558 (sb_pagefaults#3){.+.+}-{0:0}, at: do_page_mkwrite+0x19e/0x5e0 mm/memory.c:2978
#2: ffff88802f8017a8 (&ei->i_mmap_lock){++++}-{3:3}, at: btrfs_page_mkwrite+0x417/0xc80 fs/btrfs/inode.c:8443
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc7-syzkaller-00012-gca57f02295f1 #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+0x1b1/0x28e 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+0xcf5/0xd40 kernel/hung_task.c:377
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 15700 Comm: kworker/u4:0 Not tainted 6.1.0-rc7-syzkaller-00012-gca57f02295f1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: phy8 ieee80211_iface_work
RIP: 0010:hlock_class kernel/locking/lockdep.c:227 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4754 [inline]
RIP: 0010:__lock_acquire+0x787/0x1f60 kernel/locking/lockdep.c:5005
Code: 41 8b 2f 81 e5 ff 1f 00 00 48 89 e8 48 c1 e8 06 48 8d 3c c5 40 71 59 90 be 08 00 00 00 e8 51 5c 74 00 48 0f a3 2d 49 17 ef 0e <72> 37 48 ba 00 00 00 00 00 fc ff df 48 8b 44 24 50 0f b6 04 10 84
RSP: 0018:ffffc9000b697528 EFLAGS: 00000057
RAX: 0000000000000001 RBX: ffff8880739d0a98 RCX: ffffffff816a59ef
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90597228
RBP: 000000000000076b R08: dffffc0000000000 R09: fffffbfff20b2e46
R10: fffffbfff20b2e46 R11: 1ffffffff20b2e45 R12: 0000000000000001
R13: 0000000000000004 R14: 0000000000000001 R15: ffff8880739d0a98
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555644f6d0 CR3: 0000000045206000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x182/0x3c0 kernel/locking/lockdep.c:5668
__mutex_lock_common+0x1bd/0x26e0 kernel/locking/mutex.c:603
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
sdata_lock net/mac80211/ieee80211_i.h:1111 [inline]
ieee80211_ibss_rx_queued_mgmt+0x115/0x2c00 net/mac80211/ibss.c:1627
ieee80211_iface_process_skb net/mac80211/iface.c:1630 [inline]
ieee80211_iface_work+0x773/0xcf0 net/mac80211/iface.c:1684
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:306