INFO: task syz-executor.2:4122 blocked for more than 143 seconds.
Not tainted 5.17.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:27832 pid: 4122 ppid: 3921 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0x90d/0x2680 kernel/sched/core.c:6295
schedule+0xd2/0x260 kernel/sched/core.c:6368
schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x174/0x270 kernel/sched/completion.c:138
kthread_stop+0x104/0x4f0 kernel/kthread.c:709
ext4_stop_mmpd+0x34/0xb0 fs/ext4/mmp.c:255
__ext4_fill_super fs/ext4/super.c:5505 [inline]
ext4_fill_super+0x76f3/0xc1f0 fs/ext4/super.c:5554
get_tree_bdev+0x398/0x680 fs/super.c:1292
vfs_get_tree+0x7f/0x2c0 fs/super.c:1497
do_new_mount fs/namespace.c:2994 [inline]
path_mount+0x7e8/0x1a40 fs/namespace.c:3324
do_mount fs/namespace.c:3337 [inline]
__do_sys_mount fs/namespace.c:3545 [inline]
__se_sys_mount fs/namespace.c:3522 [inline]
__x64_sys_mount+0x1f5/0x260 fs/namespace.c:3522
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x467afa
RSP: 002b:00007f477d63dfa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000380 RCX: 0000000000467afa
RDX: 0000000020000000 RSI: 00000000200000c0 RDI: 00007f477d63e000
RBP: 00007f477d63e040 R08: 00007f477d63e040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000
R13: 00000000200000c0 R14: 00007f477d63e000 R15: 0000000020000200
INFO: task syz-executor.0:4160 blocked for more than 143 seconds.
Not tainted 5.17.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:27832 pid: 4160 ppid: 3927 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0x90d/0x2680 kernel/sched/core.c:6295
schedule+0xd2/0x260 kernel/sched/core.c:6368
schedule_timeout+0x19d/0x250 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x174/0x270 kernel/sched/completion.c:138
kthread_stop+0x104/0x4f0 kernel/kthread.c:709
ext4_stop_mmpd+0x34/0xb0 fs/ext4/mmp.c:255
__ext4_fill_super fs/ext4/super.c:5505 [inline]
ext4_fill_super+0x76f3/0xc1f0 fs/ext4/super.c:5554
get_tree_bdev+0x398/0x680 fs/super.c:1292
vfs_get_tree+0x7f/0x2c0 fs/super.c:1497
do_new_mount fs/namespace.c:2994 [inline]
path_mount+0x7e8/0x1a40 fs/namespace.c:3324
do_mount fs/namespace.c:3337 [inline]
__do_sys_mount fs/namespace.c:3545 [inline]
__se_sys_mount fs/namespace.c:3522 [inline]
__x64_sys_mount+0x1f5/0x260 fs/namespace.c:3522
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x467afa
RSP: 002b:00007f1720757fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000380 RCX: 0000000000467afa
RDX: 0000000020000000 RSI: 00000000200000c0 RDI: 00007f1720758000
RBP: 00007f1720758040 R08: 00007f1720758040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000
R13: 00000000200000c0 R14: 00007f1720758000 R15: 0000000020000200
Showing all locks held in the system:
2 locks held by kworker/u4:0/8:
#0: ffff8880b9f39c18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:489 [inline]
#0: ffff8880b9f39c18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1318 [inline]
#0: ffff8880b9f39c18 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1616 [inline]
#0: ffff8880b9f39c18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x236/0x2680 kernel/sched/core.c:6209
#1: ffff8880b9f27948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3e7/0x4e0 kernel/sched/psi.c:891
1 lock held by khungtaskd/27:
#0: ffffffff8ad784e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460
5 locks held by kworker/u4:2/53:
2 locks held by getty/3309:
#0: ffff888021bbc098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x1f/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900027632e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x9dd/0xed0 drivers/tty/n_tty.c:2077
1 lock held by syz-executor.2/4122:
#0: ffff8880770d80e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x192/0x9e0 fs/super.c:228
1 lock held by syz-executor.0/4160:
#0: ffff888011bba0e0 (&type->s_umount_key#27/1){+.+.}-{3:3}, at: alloc_super+0x192/0x9e0 fs/super.c:228
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.17.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x57/0x7d lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x30/0xc0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x11f/0x170 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0x88c/0xbf0 kernel/hung_task.c:369
kthread+0x299/0x340 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 1037 Comm: kworker/u4:5 Not tainted 5.17.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy7 ieee80211_iface_work
RIP: 0010:unwind_next_frame+0xeed/0x1ce0 arch/x86/kernel/unwind_orc.c:624
Code: c0 74 08 3c 03 0f 8e 5c 09 00 00 41 3b 2e 0f 84 a7 05 00 00 bf 01 00 00 00 e8 3f bf 19 00 b8 01 00 00 00 65 8b 15 c3 06 d4 7e <85> d2 0f 85 91 f1 ff ff e8 8d d2 d1 ff e9 87 f1 ff ff 4c 8b 7c 24
RSP: 0018:ffffc900048af468 EFLAGS: 00000297
RAX: 0000000000000001 RBX: 1ffff92000915e95 RCX: 0000000000000000
RDX: 0000000080000000 RSI: ffffc900048af948 RDI: 0000000000000001
RBP: ffffc900048af970 R08: ffffffff8d2eba00 R09: 0000000000000001
R10: fffff52000915eb3 R11: 000000000007c078 R12: ffffc900048a8000
R13: ffffc900048af575 R14: ffffc900048af540 R15: ffffc900048af574
FS: 0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561ea2916680 CR3: 000000000aa8e000 CR4: 0000000000350ee0
Call Trace:
arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
kasan_set_track+0x21/0x30 mm/kasan/common.c:45
kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
____kasan_slab_free mm/kasan/common.c:366 [inline]
____kasan_slab_free+0x130/0x160 mm/kasan/common.c:328
kasan_slab_free include/linux/kasan.h:236 [inline]
slab_free_hook mm/slub.c:1728 [inline]
slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1754
slab_free mm/slub.c:3509 [inline]
kfree+0xcb/0x280 mm/slub.c:4562
ieee802_11_parse_elems_crc+0x8c0/0xf70 net/mac80211/util.c:1535
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2228 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1605 [inline]
ieee80211_ibss_rx_queued_mgmt+0xb25/0x2fc0 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
ieee80211_iface_work+0x731/0x980 net/mac80211/iface.c:1581
process_one_work+0x879/0x1410 kernel/workqueue.c:2307
worker_thread+0x5a0/0xf60 kernel/workqueue.c:2454
kthread+0x299/0x340 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: c0 74 08 3c 03 shlb $0x3,0x3c(%rax,%rcx,1)
5: 0f 8e 5c 09 00 00 jle 0x967
b: 41 3b 2e cmp (%r14),%ebp
e: 0f 84 a7 05 00 00 je 0x5bb
14: bf 01 00 00 00 mov $0x1,%edi
19: e8 3f bf 19 00 callq 0x19bf5d
1e: b8 01 00 00 00 mov $0x1,%eax
23: 65 8b 15 c3 06 d4 7e mov %gs:0x7ed406c3(%rip),%edx # 0x7ed406ed
* 2a: 85 d2 test %edx,%edx <-- trapping instruction
2c: 0f 85 91 f1 ff ff jne 0xfffff1c3
32: e8 8d d2 d1 ff callq 0xffd1d2c4
37: e9 87 f1 ff ff jmpq 0xfffff1c3
3c: 4c rex.WR
3d: 8b .byte 0x8b
3e: 7c 24 jl 0x64