INFO: task syz-executor.5:20201 blocked for more than 143 seconds.
Not tainted 6.3.0-syzkaller-04626-g0cfd8703e7da #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:21192 pid:20201 ppid:6310 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
inode_lock include/linux/fs.h:758 [inline]
ext4_buffered_write_iter+0xaf/0x3a0 fs/ext4/file.c:283
ext4_file_write_iter+0x1d6/0x1930
do_iter_write+0x7b1/0xcb0 fs/read_write.c:860
iter_file_splice_write+0x843/0xfe0 fs/splice.c:779
do_splice_from fs/splice.c:857 [inline]
direct_splice_actor+0xe7/0x1c0 fs/splice.c:1023
splice_direct_to_actor+0x4c4/0xbd0 fs/splice.c:978
do_splice_direct+0x283/0x3d0 fs/splice.c:1066
do_sendfile+0x620/0xff0 fs/read_write.c:1254
__do_sys_sendfile64 fs/read_write.c:1316 [inline]
__se_sys_sendfile64+0x100/0x1e0 fs/read_write.c:1308
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f291b48c169
RSP: 002b:00007f291c1fc168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f291b5abf80 RCX: 00007f291b48c169
RDX: 0000000020000000 RSI: 0000000000000005 RDI: 0000000000000005
RBP: 00007f291b4e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000400 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdbd04401f R14: 00007f291c1fc300 R15: 0000000000022000
INFO: task syz-executor.5:20223 blocked for more than 143 seconds.
Not tainted 6.3.0-syzkaller-04626-g0cfd8703e7da #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:27272 pid:20223 ppid:6310 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
io_schedule+0x8c/0x100 kernel/sched/core.c:8887
bit_wait_io+0x12/0xc0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0xbd/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0x1d4/0x250 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:400 [inline]
__sync_dirty_buffer+0x120/0x380 fs/buffer.c:2777
__ext4_handle_dirty_metadata+0x2a6/0x820 fs/ext4/ext4_jbd2.c:387
ext4_convert_inline_data_nolock+0xaba/0xd80 fs/ext4/inline.c:1254
ext4_convert_inline_data+0x4da/0x620 fs/ext4/inline.c:2065
ext4_fallocate+0x14d/0x2050 fs/ext4/extents.c:4701
vfs_fallocate+0x54b/0x6b0 fs/open.c:324
ksys_fallocate fs/open.c:347 [inline]
__do_sys_fallocate fs/open.c:355 [inline]
__se_sys_fallocate fs/open.c:353 [inline]
__x64_sys_fallocate+0xbd/0x100 fs/open.c:353
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f291b48c169
RSP: 002b:00007f291c1ba168 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f291b5ac120 RCX: 00007f291b48c169
RDX: 00000000000064e4 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007f291b4e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdbd04401f R14: 00007f291c1ba300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf25db0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8cf26170 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
#0: ffffffff8cf25be0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:6/2856:
#0: ffff888144fcd138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363
#1: ffffc9000c1f7d20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365
#2: ffff8880167700e0 (&type->s_umount_key#41){.+.+}-{3:3}, at: trylock_super+0x1f/0xf0 fs/super.c:414
2 locks held by getty/4730:
#0: ffff88802cb8a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177
2 locks held by kworker/u4:7/19793:
#0: ffff8880b983bed8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:539
#1: ffff8880b9828788 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3a7/0x770 kernel/sched/psi.c:964
2 locks held by syz-executor.5/20201:
#0: ffff888042f3c460 (sb_writers#4){.+.+}-{0:0}, at: do_sendfile+0x5fb/0xff0 fs/read_write.c:1253
#1: ffff888074a2c030 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#1: ffff888074a2c030 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_buffered_write_iter+0xaf/0x3a0 fs/ext4/file.c:283
3 locks held by syz-executor.5/20223:
#0: ffff888042f3c460 (sb_writers#4){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2505 [inline]
#0: ffff888042f3c460 (sb_writers#4){.+.+}-{0:0}, at: vfs_fallocate+0x4be/0x6b0 fs/open.c:323
#1: ffff888074a2c030 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#1: ffff888074a2c030 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_fallocate+0x145/0x2050 fs/ext4/extents.c:4700
#2: ffff888074a2bcf8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
#2: ffff888074a2bcf8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x3b6/0x620 fs/ext4/inline.c:2063
1 lock held by syz-executor.5/20366:
#0: ffff888146f4b4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x148/0xa30 block/bdev.c:735
3 locks held by syz-executor.1/20397:
#0: ffff88803029c460 (sb_writers#4){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2505 [inline]
#0: ffff88803029c460 (sb_writers#4){.+.+}-{0:0}, at: vfs_fallocate+0x4be/0x6b0 fs/open.c:323
#1: ffff888079468400 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#1: ffff888079468400 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_fallocate+0x145/0x2050 fs/ext4/extents.c:4700
#2: ffff8880794680c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
#2: ffff8880794680c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x3b6/0x620 fs/ext4/inline.c:2063
2 locks held by syz-executor.1/20444:
#0: ffff88803029c460 (sb_writers#4){.+.+}-{0:0}, at: do_sendfile+0x5fb/0xff0 fs/read_write.c:1253
#1: ffff888079468400 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
#1: ffff888079468400 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_buffered_write_iter+0xaf/0x3a0 fs/ext4/file.c:283
1 lock held by udevd/20482:
#0: ffff888146f4b4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x148/0xa30 block/bdev.c:735
1 lock held by syz-executor.1/21032:
#0: ffff888146f4b4c8 (&disk->open_mutex){+.+.}-{3:3}, at: sync_bdevs+0x1a9/0x320 block/bdev.c:974
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.3.0-syzkaller-04626-g0cfd8703e7da #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+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x187/0x300 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+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b2/0x350 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: 10 Comm: kworker/u4:0 Not tainted 6.3.0-syzkaller-04626-g0cfd8703e7da #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Workqueue: phy4 ieee80211_iface_work
RIP: 0010:debug_lockdep_rcu_enabled+0x29/0x30 kernel/rcu/update.c:320
Code: 90 f3 0f 1e fa 31 c0 83 3d cb e7 b3 03 00 74 1d 83 3d 4e 1b b4 03 00 74 14 65 48 8b 0d 60 30 64 75 31 c0 83 b9 c4 0a 00 00 00 <0f> 94 c0 c3 0f 1f 00 66 0f 1f 00 48 8b 3c 24 e8 43 fb ff ff 66 90
RSP: 0018:ffffc900001e0768 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8880167b9dc0
RDX: ffff8880167b9dc0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e08e8 R08: ffffffff8a172b00 R09: fffffbfff205c839
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888078bd97d0
R13: dffffc0000000000 R14: ffff88806f158f5a R15: ffff88806f158f5a
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00cbca000 CR3: 000000000cd30000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock_held_common kernel/rcu/update.c:104 [inline]
rcu_read_lock_held+0xa/0x40 kernel/rcu/update.c:348
__rhashtable_lookup include/linux/rhashtable.h:602 [inline]
rhltable_lookup+0x1b7/0x800 include/linux/rhashtable.h:696
sta_info_hash_lookup net/mac80211/sta_info.c:193 [inline]
sta_info_get_bss+0x101/0x2e0 net/mac80211/sta_info.c:230
ieee80211_rx_for_interface+0x102/0x3d0 net/mac80211/rx.c:4981
__ieee80211_rx_handle_packet net/mac80211/rx.c:5146 [inline]
ieee80211_rx_list+0x2afd/0x3530 net/mac80211/rx.c:5281
ieee80211_rx_napi+0x163/0x380 net/mac80211/rx.c:5304
ieee80211_rx include/net/mac80211.h:4899 [inline]
ieee80211_tasklet_handler+0x10d/0x1b0 net/mac80211/main.c:315
tasklet_action_common+0x320/0x4c0 kernel/softirq.c:798
__do_softirq+0x2ab/0x908 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x159/0x240 kernel/softirq.c:650
irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:ieee80211_sta_get_rates+0x320/0x720 net/mac80211/util.c:2292
Code: 83 7c 24 50 00 0f 84 88 02 00 00 89 d8 24 7f 0f b6 c0 8d 04 80 89 44 24 48 48 83 7c 24 38 00 41 0f 94 c6 bf ff 00 00 00 89 de fb 7b 61 f7 84 db 0f 99 c0 44 08 f0 88 44 24 07 45 31 f6 4c 89
RSP: 0018:ffffc900000f7840 EFLAGS: 00000246
RAX: 000000000000000a RBX: 0000000000000082 RCX: ffff8880167b9dc0
RDX: ffff8880167b9dc0 RSI: 0000000000000082 RDI: 00000000000000ff
RBP: dffffc0000000000 R08: ffffffff8a29368d R09: fffffbfff1ca6d5e
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000008
R13: ffff88802ca73410 R14: ffff88803ffad801 R15: dffffc0000000000
ieee80211_update_sta_info net/mac80211/ibss.c:1003 [inline]
ieee80211_rx_bss_info net/mac80211/ibss.c:1118 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1133/0x2cf0 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1583 [inline]
ieee80211_iface_work+0x7bd/0xd00 net/mac80211/iface.c:1637
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2390
worker_thread+0xa63/0x1210 kernel/workqueue.c:2537
kthread+0x2b2/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308