INFO: task syz-executor.1:11773 can't die for more than 143 seconds.
task:syz-executor.1 state:D stack:27048 pid:11773 ppid: 3684 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5000 [inline]
__schedule+0xab2/0x4db0 kernel/sched/core.c:6309
schedule+0xd2/0x1f0 kernel/sched/core.c:6381
schedule_timeout+0x1db/0x2a0 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
__flush_work+0x56c/0xb10 kernel/workqueue.c:3075
__cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3162
p9_conn_destroy net/9p/trans_fd.c:884 [inline]
p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919
p9_client_create+0x97a/0x1070 net/9p/client.c:1072
v9fs_session_init+0x1e2/0x1810 fs/9p/v9fs.c:408
v9fs_mount+0x73/0xa80 fs/9p/vfs_super.c:126
legacy_get_tree+0x105/0x220 fs/fs_context.c:610
vfs_get_tree+0x89/0x2f0 fs/super.c:1497
do_new_mount fs/namespace.c:3012 [inline]
path_mount+0x1320/0x1fa0 fs/namespace.c:3342
do_mount fs/namespace.c:3355 [inline]
__do_sys_mount fs/namespace.c:3563 [inline]
__se_sys_mount fs/namespace.c:3540 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3540
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: 0033:0x7f2c213bc059
RSP: 002b:00007f2c20310168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f2c214cf030 RCX: 00007f2c213bc059
RDX: 0000000020000140 RSI: 0000000020000000 RDI: 0000000000000000
RBP: 00007f2c2141608d R08: 00000000200003c0 R09: 0000000000000000
R10: 0000000000800001 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffea959c13f R14: 00007f2c20310300 R15: 0000000000022000
INFO: task syz-executor.1:11773 blocked for more than 143 seconds.
Not tainted 5.17.0-rc2-next-20220204-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27048 pid:11773 ppid: 3684 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5000 [inline]
__schedule+0xab2/0x4db0 kernel/sched/core.c:6309
schedule+0xd2/0x1f0 kernel/sched/core.c:6381
schedule_timeout+0x1db/0x2a0 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
__flush_work+0x56c/0xb10 kernel/workqueue.c:3075
__cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3162
p9_conn_destroy net/9p/trans_fd.c:884 [inline]
p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919
p9_client_create+0x97a/0x1070 net/9p/client.c:1072
v9fs_session_init+0x1e2/0x1810 fs/9p/v9fs.c:408
v9fs_mount+0x73/0xa80 fs/9p/vfs_super.c:126
legacy_get_tree+0x105/0x220 fs/fs_context.c:610
vfs_get_tree+0x89/0x2f0 fs/super.c:1497
do_new_mount fs/namespace.c:3012 [inline]
path_mount+0x1320/0x1fa0 fs/namespace.c:3342
do_mount fs/namespace.c:3355 [inline]
__do_sys_mount fs/namespace.c:3563 [inline]
__se_sys_mount fs/namespace.c:3540 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3540
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: 0033:0x7f2c213bc059
RSP: 002b:00007f2c20310168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f2c214cf030 RCX: 00007f2c213bc059
RDX: 0000000020000140 RSI: 0000000020000000 RDI: 0000000000000000
RBP: 00007f2c2141608d R08: 00000000200003c0 R09: 0000000000000000
R10: 0000000000800001 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffea959c13f R14: 00007f2c20310300 R15: 0000000000022000
Showing all locks held in the system:
2 locks held by kworker/1:0/20:
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc90000da7da8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
1 lock held by khungtaskd/26:
#0: ffffffff8bb83a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6463
2 locks held by getty/3275:
#0: ffff88814a92e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002b662e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 26 Comm: khungtaskd Not tainted 5.17.0-rc2-next-20220204-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+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:256 [inline]
watchdog+0xcb7/0xed0 kernel/hung_task.c:413
kthread+0x2e9/0x3a0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 49 Comm: kworker/u4:2 Not tainted 5.17.0-rc2-next-20220204-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy10 ieee80211_iface_work
RIP: 0010:unwind_next_frame+0x8b4/0x1ce0 arch/x86/kernel/unwind_orc.c:470
Code: c7 41 84 f9 0f 85 b3 0e 00 00 83 e0 07 40 38 c6 40 0f 9e c7 40 84 f6 0f 95 c0 40 84 c7 0f 85 9a 0e 00 00 49 0f bf 00 48 01 d0 <48> 89 44 24 60 e9 aa fd ff ff 49 8d 7e 40 48 b8 00 00 00 00 00 fc
RSP: 0018:ffffc9000129f710 EFLAGS: 00000292
RAX: ffffc9000129fcb0 RBX: 1ffff92000253eea RCX: ffffffff8e861cbb
RDX: ffffc9000129fc88 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000001 R08: ffffffff8e861cb6 R09: 0000000000000001
R10: fffff52000253f08 R11: 0000000000088078 R12: ffffc9000129f830
R13: ffffc9000129f81d R14: ffffc9000129f7e8 R15: ffffffff8e861cba
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f055f82b818 CR3: 000000000b88e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000009000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
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+0x166/0x1a0 mm/kasan/common.c:328
kasan_slab_free include/linux/kasan.h:226 [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+0xce/0x2d0 mm/slub.c:4562
skb_free_head net/core/skbuff.c:655 [inline]
skb_release_data+0x718/0x870 net/core/skbuff.c:677
skb_release_all net/core/skbuff.c:742 [inline]
__kfree_skb net/core/skbuff.c:756 [inline]
kfree_skb_reason net/core/skbuff.c:776 [inline]
kfree_skb_reason+0x138/0x400 net/core/skbuff.c:770
kfree_skb include/linux/skbuff.h:1115 [inline]
ieee80211_iface_work+0x413/0xd00 net/mac80211/iface.c:1583
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 41 84 f9 test %dil,%r9b
3: 0f 85 b3 0e 00 00 jne 0xebc
9: 83 e0 07 and $0x7,%eax
c: 40 38 c6 cmp %al,%sil
f: 40 0f 9e c7 setle %dil
13: 40 84 f6 test %sil,%sil
16: 0f 95 c0 setne %al
19: 40 84 c7 test %al,%dil
1c: 0f 85 9a 0e 00 00 jne 0xebc
22: 49 0f bf 00 movswq (%r8),%rax
26: 48 01 d0 add %rdx,%rax
* 29: 48 89 44 24 60 mov %rax,0x60(%rsp) <-- trapping instruction
2e: e9 aa fd ff ff jmpq 0xfffffddd
33: 49 8d 7e 40 lea 0x40(%r14),%rdi
37: 48 rex.W
38: b8 00 00 00 00 mov $0x0,%eax
3d: 00 fc add %bh,%ah