INFO: task syz-executor.1:8452 blocked for more than 143 seconds.
Not tainted 5.16.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27736 pid: 8452 ppid: 8423 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1041
__down_read_common kernel/locking/rwsem.c:1223 [inline]
__down_read kernel/locking/rwsem.c:1232 [inline]
down_read+0xe2/0x440 kernel/locking/rwsem.c:1472
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
exit_mm kernel/exit.c:483 [inline]
do_exit+0xa0a/0x2b40 kernel/exit.c:819
do_group_exit+0x125/0x310 kernel/exit.c:929
get_signal+0x47d/0x2220 kernel/signal.c:2852
arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fec43cc8e99
RSP: 002b:00007fec4263e218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fec43ddbf68 RCX: 00007fec43cc8e99
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fec43ddbf68
RBP: 00007fec43ddbf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fec43ddbf6c
R13: 00007fff1dc1974f R14: 00007fec4263e300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bb812e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by klogd/2959:
#0: ffff8880b9d39b18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:478
2 locks held by getty/3288:
#0: ffff88807f29a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:252
#1: ffffc90002b8e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2113
1 lock held by syz-executor.1/8451:
#0: ffff88801ccd6868 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:87 [inline]
#0: ffff88801ccd6868 (&mm->mmap_lock#2){++++}-{3:3}, at: do_mprotect_pkey+0x1e0/0x980 mm/mprotect.c:551
1 lock held by syz-executor.1/8452:
#0: ffff88801ccd6868 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff88801ccd6868 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff88801ccd6868 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0xa0a/0x2b40 kernel/exit.c:819
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc5-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+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x405/0x4f0 kernel/kthread.c:327
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: 4697 Comm: kworker/u4:12 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy25 ieee80211_iface_work
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:163 [inline]
RIP: 0010:unwind_next_frame+0x21c/0x1ce0 arch/x86/kernel/unwind_orc.c:443
Code: 88 80 89 0f 83 34 01 00 00 44 8b 1d 3e b1 21 0a 4c 89 fe 48 81 ee 00 00 00 81 48 c1 ee 08 41 8d 43 ff 39 c6 0f 83 c3 13 00 00 <48> b8 00 00 00 00 00 fc ff df 89 f2 48 8d 3c 95 30 c3 a9 8e 48 89
RSP: 0018:ffffc9000a4df3d0 EFLAGS: 00000097
RAX: 0000000000088089 RBX: 1ffff9200149be82 RCX: 1ffff9200149be9e
RDX: dffffc0000000000 RSI: 0000000000000044 RDI: ffff88801d311718
RBP: 0000000000000001 R08: ffffffff8b9fa3e0 R09: 0000000000000001
R10: fffff5200149bea0 R11: 000000000008808a R12: ffffc9000a4df4f0
R13: ffffc9000a4df4dd R14: ffffc9000a4df4a8 R15: ffffffff810044fe
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c004351948 CR3: 0000000026e27000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 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/0x50 mm/kasan/common.c:38
kasan_set_track+0x21/0x30 mm/kasan/common.c:46
kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
____kasan_slab_free mm/kasan/common.c:366 [inline]
____kasan_slab_free mm/kasan/common.c:328 [inline]
__kasan_slab_free+0xd1/0x110 mm/kasan/common.c:374
kasan_slab_free include/linux/kasan.h:235 [inline]
__cache_free mm/slab.c:3445 [inline]
kfree+0x10d/0x2c0 mm/slab.c:3802
ieee802_11_parse_elems_crc+0xb0f/0x1060 net/mac80211/util.c:1517
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2208 [inline]
ieee80211_bss_info_update+0x42c/0xb30 net/mac80211/scan.c:212
ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline]
ieee80211_ibss_rx_queued_mgmt+0x19cf/0x3130 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1468 [inline]
ieee80211_iface_work+0xa65/0xd00 net/mac80211/iface.c:1522
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 88 80 89 0f 83 34 mov %al,0x34830f89(%rax)
6: 01 00 add %eax,(%rax)
8: 00 44 8b 1d add %al,0x1d(%rbx,%rcx,4)
c: 3e b1 21 ds mov $0x21,%cl
f: 0a 4c 89 fe or -0x2(%rcx,%rcx,4),%cl
13: 48 81 ee 00 00 00 81 sub $0xffffffff81000000,%rsi
1a: 48 c1 ee 08 shr $0x8,%rsi
1e: 41 8d 43 ff lea -0x1(%r11),%eax
22: 39 c6 cmp %eax,%esi
24: 0f 83 c3 13 00 00 jae 0x13ed
* 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction
31: fc ff df
34: 89 f2 mov %esi,%edx
36: 48 8d 3c 95 30 c3 a9 lea -0x71563cd0(,%rdx,4),%rdi
3d: 8e
3e: 48 rex.W
3f: 89 .byte 0x89