INFO: task syz-executor.1:24082 blocked for more than 143 seconds.
Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28112 pid:24082 ppid: 20486 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4f00 kernel/sched/core.c:6296
schedule+0xd2/0x260 kernel/sched/core.c:6369
rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032
__down_read_common kernel/locking/rwsem.c:1214 [inline]
__down_read kernel/locking/rwsem.c:1223 [inline]
down_read+0xe2/0x440 kernel/locking/rwsem.c:1463
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
do_user_addr_fault+0x9d6/0x11c0 arch/x86/mm/fault.c:1348
handle_page_fault arch/x86/mm/fault.c:1484 [inline]
exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1540
asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x7f5e033d90b9
RSP: 002b:00007f5e03a7eb60 EFLAGS: 00010246
RAX: 0000000020000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 00000000208f9f09 RSI: 0000000000000000 RDI: 00005555557152f0
RBP: 00007f5e03a7ec58 R08: 0000000000000000 R09: 0000000000000000
R10: 00007f5e03a7ec80 R11: 0000000000000246 R12: 00000000002d1ec0
R13: 00007f5e03a7ec80 R14: 00007f5e0354af60 R15: 0000000000000032
INFO: task syz-executor.1:24086 blocked for more than 143 seconds.
Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28176 pid:24086 ppid: 20486 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4f00 kernel/sched/core.c:6296
schedule+0xd2/0x260 kernel/sched/core.c:6369
rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032
__down_read_common kernel/locking/rwsem.c:1214 [inline]
__down_read kernel/locking/rwsem.c:1223 [inline]
down_read+0xe2/0x440 kernel/locking/rwsem.c:1463
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
exit_mm kernel/exit.c:483 [inline]
do_exit+0x91f/0x2a30 kernel/exit.c:793
do_group_exit+0xd2/0x2f0 kernel/exit.c:935
get_signal+0x4b0/0x28c0 kernel/signal.c:2862
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: 0033:0x7f5e03437fe9
RSP: 002b:00007f5e01dad218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f5e0354af68 RCX: 00007f5e03437fe9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f5e0354af68
RBP: 00007f5e0354af60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5e0354af6c
R13: 00007f5e03a7eb1f R14: 00007f5e01dad300 R15: 0000000000022000
INFO: task syz-executor.1:24095 blocked for more than 144 seconds.
Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29504 pid:24095 ppid: 20486 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4f00 kernel/sched/core.c:6296
schedule+0xd2/0x260 kernel/sched/core.c:6369
rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032
__down_read_common kernel/locking/rwsem.c:1214 [inline]
__down_read kernel/locking/rwsem.c:1223 [inline]
down_read+0xe2/0x440 kernel/locking/rwsem.c:1463
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
exit_mm kernel/exit.c:483 [inline]
do_exit+0x91f/0x2a30 kernel/exit.c:793
do_group_exit+0xd2/0x2f0 kernel/exit.c:935
get_signal+0x4b0/0x28c0 kernel/signal.c:2862
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: 0033:0x7f5e03437fe9
RSP: 002b:00007f5e01d6b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f5e0354b108 RCX: 00007f5e03437fe9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f5e0354b108
RBP: 00007f5e0354b100 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5e0354b10c
R13: 00007f5e03a7eb1f R14: 00007f5e01d6b300 R15: 0000000000022000
INFO: task syz-executor.1:24119 blocked for more than 144 seconds.
Not tainted 5.16.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29032 pid:24119 ppid: 20486 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4f00 kernel/sched/core.c:6296
schedule+0xd2/0x260 kernel/sched/core.c:6369
rwsem_down_read_slowpath+0x589/0xa70 kernel/locking/rwsem.c:1032
__down_read_common kernel/locking/rwsem.c:1214 [inline]
__down_read kernel/locking/rwsem.c:1223 [inline]
down_read+0xe2/0x440 kernel/locking/rwsem.c:1463
mmap_read_lock include/linux/mmap_lock.h:117 [inline]
exit_mm kernel/exit.c:483 [inline]
do_exit+0x91f/0x2a30 kernel/exit.c:793
do_group_exit+0xd2/0x2f0 kernel/exit.c:935
get_signal+0x4b0/0x28c0 kernel/signal.c:2862
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: 0033:0x7f5e03437fe9
RSP: 002b:00007f5e01d4a218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f5e0354b1d8 RCX: 00007f5e03437fe9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f5e0354b1d8
RBP: 00007f5e0354b1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5e0354b1dc
R13: 00007f5e03a7eb1f R14: 00007f5e01d4a300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bb85320 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460
2 locks held by getty/3289:
#0: ffff88807eb33098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002b632e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077
1 lock held by syz-executor.1/24082:
#0: ffff888010e77828 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff888010e77828 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x9d6/0x11c0 arch/x86/mm/fault.c:1348
1 lock held by syz-executor.1/24086:
#0: ffff888010e77828 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff888010e77828 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff888010e77828 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2a30 kernel/exit.c:793
1 lock held by syz-executor.1/24088:
1 lock held by syz-executor.1/24095:
#0: ffff888010e77828 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff888010e77828 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff888010e77828 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2a30 kernel/exit.c:793
1 lock held by syz-executor.1/24119:
#0: ffff888010e77828 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff888010e77828 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff888010e77828 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2a30 kernel/exit.c:793
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.16.0-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+0x2e9/0x3a0 kernel/kthread.c:359
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: 24088 Comm: syz-executor.1 Not tainted 5.16.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:find_held_lock+0xe6/0x110 kernel/locking/lockdep.c:5153
Code: 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 0f b6 14 02 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 11 5b 45 89 3e <4c> 89 e0 5d 41 5c 41 5d 41 5e 41 5f c3 4c 89 f7 e8 15 46 63 00 eb
RSP: 0018:ffffc90000007af0 EFLAGS: 00000097
RAX: 0000000000000003 RBX: 0000000000000007 RCX: ffffc90000007b70
RDX: 0000000000000004 RSI: ffffffff8bba4c48 RDI: ffff888071370ab0
RBP: 1ffff92000000f66 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888071370ab0
R13: ffffffff8bba4c48 R14: ffffc90000007b70 R15: 0000000000000002
FS: 00007f5e01d8c700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055571e5cca10 CR3: 000000007c4ed000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lock_release kernel/locking/lockdep.c:5314 [inline]
lock_release+0x1f2/0x720 kernel/locking/lockdep.c:5659
seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline]
timekeeping_get_delta kernel/time/timekeeping.c:252 [inline]
timekeeping_get_ns kernel/time/timekeeping.c:386 [inline]
ktime_get+0x158/0x470 kernel/time/timekeeping.c:829
hrtimer_forward_now include/linux/hrtimer.h:506 [inline]
perf_swevent_hrtimer+0x246/0x3f0 kernel/events/core.c:10626
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:330 [inline]
RIP: 0010:rcu_is_watching+0x39/0xb0 kernel/rcu/tree.c:1128
Code: c7 c3 10 ac 03 00 83 f8 07 89 c5 77 77 48 8d 3c ed a0 18 59 8b 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <75> 51 48 03 1c ed a0 18 59 8b 48 b8 00 00 00 00 00 fc ff df 48 89
RSP: 0018:ffffc9000553fa70 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 000000000003ac10 RCX: ffffffff815d3c01
RDX: 1ffffffff16b2314 RSI: 0000000000000002 RDI: ffffffff8b5918a0
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8d9461d7
R10: fffffbfff1b28c3a R11: 0000000000000001 R12: 0000000000000001
R13: ffff888077ebb4e0 R14: ffff888077ebb7f0 R15: ffff888077ebb7f0
rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
rcu_read_lock_sched_held+0x1c/0x70 kernel/rcu/update.c:123
trace_lock_release include/trace/events/lock.h:58 [inline]
lock_release+0x522/0x720 kernel/locking/lockdep.c:5650
__mutex_unlock_slowpath+0x99/0x5e0 kernel/locking/mutex.c:893
perf_mmap+0x7bf/0x1a50 kernel/events/core.c:6288
call_mmap include/linux/fs.h:2091 [inline]
mmap_region+0xd88/0x1630 mm/mmap.c:1793
do_mmap+0x869/0xfb0 mm/mmap.c:1582
vm_mmap_pgoff+0x1b7/0x290 mm/util.c:519
ksys_mmap_pgoff+0x40d/0x5a0 mm/mmap.c:1630
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: 0033:0x7f5e03437fe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5e01d8c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f5e0354b030 RCX: 00007f5e03437fe9
RDX: 0000000000010006 RSI: 0000000000003000 RDI: 0000000020000000
RBP: 00007f5e0349208d R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000080011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5e03a7eb1f R14: 00007f5e01d8c300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
7: fc ff df
a: 4c 89 f2 mov %r14,%rdx
d: 48 c1 ea 03 shr $0x3,%rdx
11: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx
15: 4c 89 f0 mov %r14,%rax
18: 83 e0 07 and $0x7,%eax
1b: 83 c0 03 add $0x3,%eax
1e: 38 d0 cmp %dl,%al
20: 7c 04 jl 0x26
22: 84 d2 test %dl,%dl
24: 75 11 jne 0x37
26: 5b pop %rbx
27: 45 89 3e mov %r15d,(%r14)
* 2a: 4c 89 e0 mov %r12,%rax <-- trapping instruction
2d: 5d pop %rbp
2e: 41 5c pop %r12
30: 41 5d pop %r13
32: 41 5e pop %r14
34: 41 5f pop %r15
36: c3 retq
37: 4c 89 f7 mov %r14,%rdi
3a: e8 15 46 63 00 callq 0x634654
3f: eb .byte 0xeb