INFO: task syz-executor.0:7369 blocked for more than 144 seconds.
Not tainted 6.1.91-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:22424 pid:7369 ppid:6859 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
wait_on_state fs/btrfs/extent-io-tree.c:709 [inline]
wait_extent_bit+0x423/0x570 fs/btrfs/extent-io-tree.c:742
lock_extent+0x17a/0x200 fs/btrfs/extent-io-tree.c:1657
btrfs_page_mkwrite+0x550/0xc90 fs/btrfs/inode.c:8602
do_page_mkwrite+0x1a1/0x5f0 mm/memory.c:2992
wp_page_shared+0x164/0x380 mm/memory.c:3341
handle_pte_fault mm/memory.c:5031 [inline]
__handle_mm_fault mm/memory.c:5155 [inline]
handle_mm_fault+0x2525/0x5340 mm/memory.c:5276
do_user_addr_fault arch/x86/mm/fault.c:1371 [inline]
handle_page_fault arch/x86/mm/fault.c:1462 [inline]
exc_page_fault+0x26f/0x660 arch/x86/mm/fault.c:1518
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:ffffc900031ff3b0 EFLAGS: 00050202
RAX: ffffffff84384001 RBX: 00007fffffffefc8 RCX: 0000000000000007
RDX: 0000000000000000 RSI: ffffc900031ff460 RDI: 00000000200002a0
RBP: ffffc900031ff510 R08: 0000000000000000 R09: fffff5200063fe93
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000038
R13: ffffc900031ff460 R14: 00000000200002a0 R15: ffffc900031ff460
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:41
copy_to_user include/linux/uaccess.h:169 [inline]
fiemap_fill_next_extent+0x231/0x410 fs/ioctl.c:144
emit_fiemap_extent fs/btrfs/extent_io.c:3561 [inline]
fiemap_process_hole+0x107e/0x1290 fs/btrfs/extent_io.c:3821
extent_fiemap+0xef7/0x1ff0
btrfs_fiemap+0x174/0x1e0 fs/btrfs/inode.c:8274
ioctl_fiemap fs/ioctl.c:219 [inline]
do_vfs_ioctl+0x18e9/0x2a90 fs/ioctl.c:810
__do_sys_ioctl fs/ioctl.c:868 [inline]
__se_sys_ioctl+0x81/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f3546a7cee9
RSP: 002b:00007f35478500c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f3546babf80 RCX: 00007f3546a7cee9
RDX: 0000000020000280 RSI: 00000000c020660b RDI: 0000000000000004
RBP: 00007f3546ac949e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f3546babf80 R15: 00007ffe2a517bb8
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d12ae50 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d12b650 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
1 lock held by khungtaskd/28:
#0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
#0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
#0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6494
2 locks held by kworker/u4:2/33:
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc90000aa7d20 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
2 locks held by kworker/u4:4/102:
2 locks held by getty/3303:
#0: ffff888029e3f098 (&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+0x6a7/0x1db0 drivers/tty/n_tty.c:2188
3 locks held by kworker/0:7/3616:
#0: ffff88814b275138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc90004ecfd20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}
, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#2: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcc/0x16b0 net/ipv6/addrconf.c:4114
3 locks held by kworker/0:8/4994:
#0: ffff888012470938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc9000344fd20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#2: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:263
2 locks held by kworker/0:15/5070:
#0: ffff888012470938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc90003a4fd20 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
2 locks held by kworker/1:15/5935:
#0: ffff888012472138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc900057dfd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
4 locks held by syz-executor.0/7369:
#0: ffff888059fc3600 (&sb->s_type->i_mutex_key#28){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline]
#0: ffff888059fc3600 (&sb->s_type->i_mutex_key#28){++++}-{3:3}, at: btrfs_inode_lock+0x5c/0xd0 fs/btrfs/inode.c:147
#1: ffff888079633d58 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#1: ffff888079633d58 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5304 [inline]
#1: ffff888079633d58 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x2e/0x2e0 mm/memory.c:5366
#2: ffff888076ace558 (sb_pagefaults#3){.+.+}-{0:0}, at: do_page_mkwrite+0x1a1/0x5f0 mm/memory.c:2992
#3: ffff888059fc3488 (&ei->i_mmap_lock){++++}-{3:3}, at: btrfs_page_mkwrite+0x421/0xc90 fs/btrfs/inode.c:8591
3 locks held by kworker/u4:18/7997:
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc90009027d20 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#2: ffffffff8d130278 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#2: ffffffff8d130278 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x360/0x930 kernel/rcu/tree_exp.h:962
2 locks held by kworker/u4:19/8301:
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
#1: ffffc90003a1fd20 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
1 lock held by syz-executor.2/9780:
2 locks held by syz-executor.3/9781:
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8e29af28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7c1/0xff0 net/core/rtnetlink.c:6118
#1: ffffffff8d130278 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#1: ffffffff8d130278 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x360/0x930 kernel/rcu/tree_exp.h:962
1 lock held by syz-executor.1/9797:
1 lock held by dhcpcd/9800:
#0: ffff888045390130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1748 [inline]
#0: ffff888045390130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xd00 net/packet/af_packet.c:3198
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.91-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b0/0x3f0 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+0xf88/0xfd0 kernel/hung_task.c:377
kthread+0x28d/0x320 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: 9780 Comm: syz-executor.2 Not tainted 6.1.91-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:__lock_acquire+0x112/0x1f80 kernel/locking/lockdep.c:4952
Code: 14 00 00 49 8d ad d8 0a 00 00 48 89 e8 48 c1 e8 03 48 89 44 24 28 0f b6 04 10 84 c0 0f 85 6d 15 00 00 48 89 6c 24 18 8b 75 00 <48> c7 c0 60 41 c9 91 48 c1 e8 03 0f b6 04 10 84 c0 48 89 74 24 40
RSP: 0018:ffffc90004dbf620 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffffff901f7a60 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880183d70b0
RBP: ffff88805cf56418 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88805cf55940 R14: ffff8880183d70b0 R15: 0000000000000001
FS: 00007f2aec5d36c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020488030 CR3: 000000007eb7a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
lock_sock_nested+0x66/0x100 net/core/sock.c:3488
lock_sock include/net/sock.h:1748 [inline]
aead_check_key+0x43/0x1e0 crypto/algif_aead.c:385
aead_recvmsg_nokey+0x1c/0x60 crypto/algif_aead.c:440
____sys_recvmsg+0x285/0x530
___sys_recvmsg net/socket.c:2775 [inline]
do_recvmmsg+0x46d/0xad0 net/socket.c:2869
__sys_recvmmsg net/socket.c:2948 [inline]
__do_sys_recvmmsg net/socket.c:2971 [inline]
__se_sys_recvmmsg net/socket.c:2964 [inline]
__x64_sys_recvmmsg+0x195/0x240 net/socket.c:2964
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f2aeb87cee9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2aec5d30c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f2aeb9abf80 RCX: 00007f2aeb87cee9
RDX: 03ffffffffffff67 RSI: 0000000020002440 RDI: 0000000000000004
RBP: 00007f2aeb8c949e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f2aeb9abf80 R15: 00007ffe85c4cd58