INFO: task syz-executor.0:4700 blocked for more than 143 seconds.
Not tainted 5.17.0-rc6-syzkaller-00228-gac84e82f78cb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:28152 pid: 4700 ppid: 3869 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6304
schedule+0x12b/0x1f0 kernel/sched/core.c:6377
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1142
__down_write_common kernel/locking/rwsem.c:1259 [inline]
__down_write kernel/locking/rwsem.c:1268 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1515
inode_lock include/linux/fs.h:777 [inline]
chown_common+0x4fd/0x820 fs/open.c:677
do_fchownat+0x165/0x240 fs/open.c:711
__do_sys_chown fs/open.c:731 [inline]
__se_sys_chown fs/open.c:729 [inline]
__x64_sys_chown+0x7e/0x90 fs/open.c:729
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fbd2ff44049
RSP: 002b:00007fbd2e898168 EFLAGS: 00000246 ORIG_RAX: 000000000000005c
RAX: ffffffffffffffda RBX: 00007fbd30057030 RCX: 00007fbd2ff44049
RDX: 000000000000ee00 RSI: 000000000000ee00 RDI: 0000000020000040
RBP: 00007fbd2ff9e08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffbff936bf R14: 00007fbd2e898300 R15: 0000000000022000
INFO: task syz-executor.1:4709 blocked for more than 144 seconds.
Not tainted 5.17.0-rc6-syzkaller-00228-gac84e82f78cb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28624 pid: 4709 ppid: 4175 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6304
schedule+0x12b/0x1f0 kernel/sched/core.c:6377
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1142
__down_write_common kernel/locking/rwsem.c:1259 [inline]
__down_write kernel/locking/rwsem.c:1268 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1515
inode_lock include/linux/fs.h:777 [inline]
chown_common+0x4fd/0x820 fs/open.c:677
do_fchownat+0x165/0x240 fs/open.c:711
__do_sys_chown fs/open.c:731 [inline]
__se_sys_chown fs/open.c:729 [inline]
__x64_sys_chown+0x7e/0x90 fs/open.c:729
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fd4b584e049
RSP: 002b:00007fd4b41a2168 EFLAGS: 00000246 ORIG_RAX: 000000000000005c
RAX: ffffffffffffffda RBX: 00007fd4b5961030 RCX: 00007fd4b584e049
RDX: 000000000000ee00 RSI: 000000000000ee00 RDI: 0000000020000040
RBP: 00007fd4b58a808d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe7e79475f R14: 00007fd4b41a2300 R15: 0000000000022000
INFO: task syz-executor.5:4712 blocked for more than 145 seconds.
Not tainted 5.17.0-rc6-syzkaller-00228-gac84e82f78cb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28624 pid: 4712 ppid: 3874 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6304
schedule+0x12b/0x1f0 kernel/sched/core.c:6377
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1142
__down_write_common kernel/locking/rwsem.c:1259 [inline]
__down_write kernel/locking/rwsem.c:1268 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1515
inode_lock include/linux/fs.h:777 [inline]
chown_common+0x4fd/0x820 fs/open.c:677
do_fchownat+0x165/0x240 fs/open.c:711
__do_sys_chown fs/open.c:731 [inline]
__se_sys_chown fs/open.c:729 [inline]
__x64_sys_chown+0x7e/0x90 fs/open.c:729
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f6ec0107049
RSP: 002b:00007f6ebea5b168 EFLAGS: 00000246 ORIG_RAX: 000000000000005c
RAX: ffffffffffffffda RBX: 00007f6ec021a030 RCX: 00007f6ec0107049
RDX: 000000000000ee00 RSI: 000000000000ee00 RDI: 0000000020000040
RBP: 00007f6ec016108d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdd0649f5f R14: 00007f6ebea5b300 R15: 0000000000022000
INFO: task syz-executor.2:4725 blocked for more than 145 seconds.
Not tainted 5.17.0-rc6-syzkaller-00228-gac84e82f78cb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28624 pid: 4725 ppid: 4158 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6304
schedule+0x12b/0x1f0 kernel/sched/core.c:6377
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1142
__down_write_common kernel/locking/rwsem.c:1259 [inline]
__down_write kernel/locking/rwsem.c:1268 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1515
inode_lock include/linux/fs.h:777 [inline]
chown_common+0x4fd/0x820 fs/open.c:677
do_fchownat+0x165/0x240 fs/open.c:711
__do_sys_chown fs/open.c:731 [inline]
__se_sys_chown fs/open.c:729 [inline]
__x64_sys_chown+0x7e/0x90 fs/open.c:729
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f3c75015049
RSP: 002b:00007f3c73969168 EFLAGS: 00000246 ORIG_RAX: 000000000000005c
RAX: ffffffffffffffda RBX: 00007f3c75128030 RCX: 00007f3c75015049
RDX: 000000000000ee00 RSI: 000000000000ee00 RDI: 0000000020000040
RBP: 00007f3c7506f08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff6b95205f R14: 00007f3c73969300 R15: 0000000000022000
INFO: task syz-executor.4:4724 blocked for more than 145 seconds.
Not tainted 5.17.0-rc6-syzkaller-00228-gac84e82f78cb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:28624 pid: 4724 ppid: 3870 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0x926/0x1080 kernel/sched/core.c:6304
schedule+0x12b/0x1f0 kernel/sched/core.c:6377
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1142
__down_write_common kernel/locking/rwsem.c:1259 [inline]
__down_write kernel/locking/rwsem.c:1268 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1515
inode_lock include/linux/fs.h:777 [inline]
chown_common+0x4fd/0x820 fs/open.c:677
do_fchownat+0x165/0x240 fs/open.c:711
__do_sys_chown fs/open.c:731 [inline]
__se_sys_chown fs/open.c:729 [inline]
__x64_sys_chown+0x7e/0x90 fs/open.c:729
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fdc2ca32049
RSP: 002b:00007fdc2b386168 EFLAGS: 00000246 ORIG_RAX: 000000000000005c
RAX: ffffffffffffffda RBX: 00007fdc2cb45030 RCX: 00007fdc2ca32049
RDX: 000000000000ee00 RSI: 000000000000ee00 RDI: 0000000020000040
RBP: 00007fdc2ca8c08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc3ea4292f R14: 00007fdc2b386300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/26:
#0: ffffffff8cb1d460 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3276:
#0: ffff88814af29098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002b662e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6c5/0x1c60 drivers/tty/n_tty.c:2075
2 locks held by syz-executor.0/4695:
2 locks held by syz-executor.0/4700:
#0: ffff88801e638460 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
#1: ffff888070588d98 (&sb->s_type->i_mutex_key#22){++++}-{3:3}, at: inode_lock include/linux/fs.h:777 [inline]
#1: ffff888070588d98 (&sb->s_type->i_mutex_key#22){++++}-{3:3}, at: chown_common+0x4fd/0x820 fs/open.c:677
2 locks held by syz-executor.1/4701:
2 locks held by syz-executor.1/4709:
#0: ffff88801d316460 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
#1: ffff88806ceb0208 (&sb->s_type->i_mutex_key#22){++++}-{3:3}, at: inode_lock include/linux/fs.h:777 [inline]
#1: ffff88806ceb0208 (&sb->s_type->i_mutex_key#22){++++}-{3:3}, at: chown_common+0x4fd/0x820 fs/open.c:677
2 locks held by syz-executor.5/4706:
#0: ffff88807d4a4d70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:1034
#1: ffff88806ceb07d0 (&sb->s_type->i_mutex_key#22){++++}-{3:3}, at: iterate_dir+0x124/0x640 fs/readdir.c:55
2 locks held by syz-executor.5/4712:
#0: ffff8880618b6460 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
#1: ffff88806ceb07d0 (&sb->s_type->i_mutex_key#22){++++}-{3:3}, at: inode_lock include/linux/fs.h:777 [inline]
#1: ffff88806ceb07d0 (&sb->s_type->i_mutex_key#22){++++}-{3:3}, at: chown_common+0x4fd/0x820 fs/open.c:677
2 locks held by syz-executor.2/4720:
2 locks held by syz-executor.2/4725:
#0: ffff88807daf6460 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
#1: ffff888070589360 (&sb->s_type->i_mutex_key#22){++++}-{3:3}, at: inode_lock include/linux/fs.h:777 [inline]
#1: ffff888070589360 (&sb->s_type->i_mutex_key#22){++++}-{3:3}, at: chown_common+0x4fd/0x820 fs/open.c:677
2 locks held by syz-executor.4/4721:
2 locks held by syz-executor.4/4724:
#0: ffff88805d4cc460 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
#1: ffff88806ceb0d98 (&sb->s_type->i_mutex_key#22){++++}-{3:3}, at: inode_lock include/linux/fs.h:777 [inline]
#1: ffff88806ceb0d98 (&sb->s_type->i_mutex_key#22){++++}-{3:3}, at: chown_common+0x4fd/0x820 fs/open.c:677
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.17.0-rc6-syzkaller-00228-gac84e82f78cb #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+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 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+0xc82/0xcd0 kernel/hung_task.c:369
kthread+0x2a3/0x2d0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 48 Comm: kworker/u4:2 Not tainted 5.17.0-rc6-syzkaller-00228-gac84e82f78cb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy8 ieee80211_iface_work
RIP: 0010:slab_free_freelist_hook+0x94/0x1a0 mm/slub.c:1765
Code: 89 df 4c 89 f6 31 c9 e8 7a 44 00 00 b0 01 e9 0f 01 00 00 49 c7 07 00 00 00 00 49 c7 45 00 00 00 00 00 eb 13 66 90 48 8b 04 24 08 48 3b 6c 24 10 0f 84 d1 00 00 00 4c 89 f5 8b 43 28 4d 8b 34
RSP: 0018:ffffc9000118f770 EFLAGS: 00000202
RAX: ffffc9000118f7c4 RBX: ffff888011441640 RCX: ffffffff81674ab1
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff888070b64c00 R08: dffffc0000000000 R09: fffffbfff1ffbbd2
R10: fffffbfff1ffbbd2 R11: 0000000000000000 R12: 0000000000000000
R13: ffffc9000118f7c8 R14: 0000000000000000 R15: ffffc9000118f7d0
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb0e942d310 CR3: 0000000062785000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
slab_free mm/slub.c:3509 [inline]
kfree+0xb8/0x2e0 mm/slub.c:4562
ieee802_11_parse_elems_crc+0xe63/0x1040 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+0x389/0x2b30 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
ieee80211_iface_work+0x713/0xca0 net/mac80211/iface.c:1581
process_one_work+0x86c/0x1190 kernel/workqueue.c:2307
worker_thread+0xab1/0x1300 kernel/workqueue.c:2454
kthread+0x2a3/0x2d0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
----------------
Code disassembly (best guess):
0: 89 df mov %ebx,%edi
2: 4c 89 f6 mov %r14,%rsi
5: 31 c9 xor %ecx,%ecx
7: e8 7a 44 00 00 callq 0x4486
c: b0 01 mov $0x1,%al
e: e9 0f 01 00 00 jmpq 0x122
13: 49 c7 07 00 00 00 00 movq $0x0,(%r15)
1a: 49 c7 45 00 00 00 00 movq $0x0,0x0(%r13)
21: 00
22: eb 13 jmp 0x37
24: 66 90 xchg %ax,%ax
26: 48 8b 04 24 mov (%rsp),%rax
* 2a: ff 08 decl (%rax) <-- trapping instruction
2c: 48 3b 6c 24 10 cmp 0x10(%rsp),%rbp
31: 0f 84 d1 00 00 00 je 0x108
37: 4c 89 f5 mov %r14,%rbp
3a: 8b 43 28 mov 0x28(%rbx),%eax
3d: 4d rex.WRB
3e: 8b .byte 0x8b
3f: 34 .byte 0x34