INFO: task syz-executor.1:8083 blocked for more than 143 seconds.
Not tainted 5.17.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28112 pid: 8083 ppid: 3660 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4db0 kernel/sched/core.c:6295
schedule+0xd2/0x260 kernel/sched/core.c:6368
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
__do_sys_exit_group kernel/exit.c:946 [inline]
__se_sys_exit_group kernel/exit.c:944 [inline]
__x64_sys_exit_group+0x3a/0x50 kernel/exit.c:944
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: 0033:0x7ffa3cec8059
RSP: 002b:00007ffa3d50ed58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007ffa3cec8059
RDX: 00007ffa3ce7ac9b RSI: ffffffffffffffb8 RDI: 0000000000000000
RBP: 0000000000000000 R08: 00007ffd7c877080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffa3d50ee40
INFO: task syz-executor.1:8086 blocked for more than 143 seconds.
Not tainted 5.17.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28168 pid: 8086 ppid: 3660 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4db0 kernel/sched/core.c:6295
schedule+0xd2/0x260 kernel/sched/core.c:6368
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: 0033:0x7ffa3cec8059
RSP: 002b:00007ffa3b83d218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007ffa3cfdaf68 RCX: 00007ffa3cec8059
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ffa3cfdaf68
RBP: 00007ffa3cfdaf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffa3cfdaf6c
R13: 00007ffa3d50eb1f R14: 00007ffa3b83d300 R15: 0000000000022000
INFO: task syz-executor.1:8087 blocked for more than 144 seconds.
Not tainted 5.17.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29464 pid: 8087 ppid: 3660 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4db0 kernel/sched/core.c:6295
schedule+0xd2/0x260 kernel/sched/core.c:6368
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: 0033:0x7ffa3cec8059
RSP: 002b:00007ffa3b81c218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007ffa3cfdb038 RCX: 00007ffa3cec8059
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ffa3cfdb038
RBP: 00007ffa3cfdb030 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffa3cfdb03c
R13: 00007ffa3d50eb1f R14: 00007ffa3b81c300 R15: 0000000000022000
INFO: task syz-executor.1:8089 blocked for more than 144 seconds.
Not tainted 5.17.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29464 pid: 8089 ppid: 3660 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4db0 kernel/sched/core.c:6295
schedule+0xd2/0x260 kernel/sched/core.c:6368
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: 0033:0x7ffa3cec8059
RSP: 002b:00007ffa3b7da218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007ffa3cfdb1d8 RCX: 00007ffa3cec8059
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ffa3cfdb1d8
RBP: 00007ffa3cfdb1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffa3cfdb1dc
R13: 00007ffa3d50eb1f R14: 00007ffa3b7da300 R15: 0000000000022000
INFO: task syz-executor.1:8090 blocked for more than 145 seconds.
Not tainted 5.17.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29448 pid: 8090 ppid: 3660 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4db0 kernel/sched/core.c:6295
schedule+0xd2/0x260 kernel/sched/core.c:6368
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: 0033:0x7ffa3cec8059
RSP: 002b:00007ffa3b7b9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: fffffffffffffffc RBX: 00007ffa3cfdb2a0 RCX: 00007ffa3cec8059
RDX: 0000000000000000 RSI: 0000000000002000 RDI: 0000000020ffe000
RBP: 00007ffa3cf2208d R08: 0000000000000004 R09: 0000000000000000
R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffa3d50eb1f R14: 00007ffa3b7b9300 R15: 0000000000022000
INFO: task syz-executor.1:8091 blocked for more than 145 seconds.
Not tainted 5.17.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28912 pid: 8091 ppid: 3660 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4db0 kernel/sched/core.c:6295
schedule+0xd2/0x260 kernel/sched/core.c:6368
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: 0033:0x7ffa3cec8059
RSP: 002b:00007ffa3b798218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007ffa3cfdb378 RCX: 00007ffa3cec8059
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ffa3cfdb378
RBP: 00007ffa3cfdb370 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffa3cfdb37c
R13: 00007ffa3d50eb1f R14: 00007ffa3b798300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bb83aa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460
3 locks held by kworker/u4:4/977:
#0: ffff8880b9c39c58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:489
#1: ffff8880b9c27948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3e7/0x4e0 kernel/sched/psi.c:891
#2: ffff8880b9c28498 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x5a/0x1f0 kernel/time/timer.c:946
2 locks held by getty/3283:
#0: ffff88814aa0b098 (&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.1/8083:
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2a30 kernel/exit.c:793
1 lock held by syz-executor.1/8086:
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2a30 kernel/exit.c:793
1 lock held by syz-executor.1/8087:
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2a30 kernel/exit.c:793
1 lock held by syz-executor.1/8088:
1 lock held by syz-executor.1/8089:
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2a30 kernel/exit.c:793
1 lock held by syz-executor.1/8090:
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2a30 kernel/exit.c:793
1 lock held by syz-executor.1/8091:
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff8880236e1d28 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff8880236e1d28 (&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 5.17.0-rc1-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:212 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:369
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: 925 Comm: kworker/0:2 Not tainted 5.17.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x7/0x60 kernel/kcov.c:200
Code: 46 00 5d be 03 00 00 00 e9 36 86 65 02 66 0f 1f 44 00 00 48 8b be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 65 8b 05 f9 14 8a 7e <89> c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 00 70 02 00 a9
RSP: 0018:ffffc9000498f8c8 EFLAGS: 00000283
RAX: 0000000080000001 RBX: dffffc0000000000 RCX: ffff88823bd81000
RDX: 0000000000000000 RSI: ffff88801b369d00 RDI: 0000000000000003
RBP: ffff88823bd81000 R08: ffff88823bd802b6 R09: 0000000000000001
R10: ffffffff81bfcd3e R11: 0000000000000000 R12: ffff88823bd80000
R13: 00000000ffffffaf R14: ffffffff9057a3e8 R15: ffff88823bd802b6
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000ef7388 CR3: 000000000b88e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
for_each_canary mm/kfence/core.c:352 [inline]
kfence_guarded_alloc mm/kfence/core.c:437 [inline]
__kfence_alloc+0xef4/0x1490 mm/kfence/core.c:910
kfence_alloc include/linux/kfence.h:126 [inline]
slab_alloc_node mm/slub.c:3148 [inline]
kmem_cache_alloc_node+0x3cc/0x3f0 mm/slub.c:3266
__alloc_skb+0x215/0x340 net/core/skbuff.c:414
alloc_skb include/linux/skbuff.h:1158 [inline]
nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:745 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:802 [inline]
nsim_dev_trap_report_work+0x29a/0xbc0 drivers/net/netdevsim/dev.c:843
process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
worker_thread+0x657/0x1110 kernel/workqueue.c:2454
kthread+0x2e9/0x3a0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 46 00 5d be rex.RX add %r11b,-0x42(%rbp)
4: 03 00 add (%rax),%eax
6: 00 00 add %al,(%rax)
8: e9 36 86 65 02 jmpq 0x2658643
d: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
13: 48 8b be b0 01 00 00 mov 0x1b0(%rsi),%rdi
1a: e8 b4 ff ff ff callq 0xffffffd3
1f: 31 c0 xor %eax,%eax
21: c3 retq
22: 90 nop
23: 65 8b 05 f9 14 8a 7e mov %gs:0x7e8a14f9(%rip),%eax # 0x7e8a1523
* 2a: 89 c1 mov %eax,%ecx <-- trapping instruction
2c: 48 8b 34 24 mov (%rsp),%rsi
30: 81 e1 00 01 00 00 and $0x100,%ecx
36: 65 48 8b 14 25 00 70 mov %gs:0x27000,%rdx
3d: 02 00
3f: a9 .byte 0xa9