INFO: task syz-executor.0:7823 blocked for more than 143 seconds.
Not tainted 5.16.0-next-20220114-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:28112 pid: 7823 ppid: 3630 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4e90 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/0x2b10 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: 0033:0x7fe0373a4fe9
RSP: 002b:00007ffcdea12028 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007fe0373a4fe9
RDX: 00007fe037357c2b RSI: ffffffffffffffbc RDI: 0000000000000000
RBP: 0000000000000000 R08: 00007ffcdeac0080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffcdea12110
INFO: task syz-executor.0:7825 blocked for more than 143 seconds.
Not tainted 5.16.0-next-20220114-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:25024 pid: 7825 ppid: 3630 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4e90 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/0x2b10 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: 0033:0x7fe0373a4fe9
RSP: 002b:00007fe035d1a218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fe0374b7f68 RCX: 00007fe0373a4fe9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe0374b7f68
RBP: 00007fe0374b7f60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe0374b7f6c
R13: 00007ffcdea11def R14: 00007fe035d1a300 R15: 0000000000022000
INFO: task syz-executor.0:7828 blocked for more than 144 seconds.
Not tainted 5.16.0-next-20220114-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:28896 pid: 7828 ppid: 3630 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4e90 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/0x2b10 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: 0033:0x7fe0373a4fe9
RSP: 002b:00007fe035cf9218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fe0374b8038 RCX: 00007fe0373a4fe9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe0374b8038
RBP: 00007fe0374b8030 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe0374b803c
R13: 00007ffcdea11def R14: 00007fe035cf9300 R15: 0000000000022000
INFO: task syz-executor.0:7829 can't die for more than 144 seconds.
task:syz-executor.0 state:R running task stack:28616 pid: 7829 ppid: 3630 flags:0x00004006
Call Trace:
INFO: task syz-executor.0:7830 blocked for more than 144 seconds.
Not tainted 5.16.0-next-20220114-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:29456 pid: 7830 ppid: 3630 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4e90 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/0x2b10 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: 0033:0x7fe0373a4fe9
RSP: 002b:00007fe035cb7218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fe0374b81d8 RCX: 00007fe0373a4fe9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe0374b81d8
RBP: 00007fe0374b81d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe0374b81dc
R13: 00007ffcdea11def R14: 00007fe035cb7300 R15: 0000000000022000
INFO: task syz-executor.0:7831 blocked for more than 144 seconds.
Not tainted 5.16.0-next-20220114-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:29448 pid: 7831 ppid: 3630 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4e90 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/0x2b10 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: 0033:0x7fe0373a4fe9
RSP: 002b:00007fe035c96168 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: fffffffffffffffc RBX: 00007fe0374b82a0 RCX: 00007fe0373a4fe9
RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020ffc000
RBP: 00007fe0373ff08d R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcdea11def R14: 00007fe035c96300 R15: 0000000000022000
INFO: task syz-executor.0:7832 blocked for more than 145 seconds.
Not tainted 5.16.0-next-20220114-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:29176 pid: 7832 ppid: 3630 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4e90 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/0x2b10 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: 0033:0x7fe0373a4fe9
RSP: 002b:00007fe035c75218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fe0374b8378 RCX: 00007fe0373a4fe9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe0374b8378
RBP: 00007fe0374b8370 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe0374b837c
R13: 00007ffcdea11def R14: 00007fe035c75300 R15: 0000000000022000
INFO: task syz-executor.0:7833 can't die for more than 145 seconds.
task:syz-executor.0 state:D stack:30328 pid: 7833 ppid: 3630 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4e90 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: 0033:0x7fe03734bf04
RSP: 002b:00007fe035c54190 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007fe03740c877
RDX: 000000000015e64b RSI: 0000000000000000 RDI: 00007fe0373fdfad
RBP: 00007fe0373ff08d R08: 0000000000000642 R09: 00007ffcdeac0080
R10: 00007ffcdeac0090 R11: 000000000004cbb8 R12: 0000000000000000
R13: 00007ffcdea11def R14: 00007fe035c54300 R15: 0000000000022000
INFO: task syz-executor.0:7833 blocked for more than 146 seconds.
Not tainted 5.16.0-next-20220114-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:30328 pid: 7833 ppid: 3630 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4e90 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: 0033:0x7fe03734bf04
RSP: 002b:00007fe035c54190 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007fe03740c877
RDX: 000000000015e64b RSI: 0000000000000000 RDI: 00007fe0373fdfad
RBP: 00007fe0373ff08d R08: 0000000000000642 R09: 00007ffcdeac0080
R10: 00007ffcdeac0090 R11: 000000000004cbb8 R12: 0000000000000000
R13: 00007ffcdea11def R14: 00007fe035c54300 R15: 0000000000022000
INFO: task syz-executor.0:7834 can't die for more than 146 seconds.
task:syz-executor.0 state:D stack:30328 pid: 7834 ppid: 3630 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4e90 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: 0033:0x7fe03734bf04
RSP: 002b:00007fe035c33190 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007fe03740b757
RDX: 000000000015e64b RSI: 0000000000000000 RDI: 00007fe0373fdfad
RBP: 00007fe0373ff08d R08: 0000000000000642 R09: 00007ffcdeac0080
R10: 00007ffcdeac0090 R11: 000000000004cbb8 R12: 0000000000000000
R13: 00007ffcdea11def R14: 00007fe035c33300 R15: 0000000000022000
INFO: task syz-executor.0:7834 blocked for more than 146 seconds.
Not tainted 5.16.0-next-20220114-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:30328 pid: 7834 ppid: 3630 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4e90 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: 0033:0x7fe03734bf04
RSP: 002b:00007fe035c33190 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007fe03740b757
RDX: 000000000015e64b RSI: 0000000000000000 RDI: 00007fe0373fdfad
RBP: 00007fe0373ff08d R08: 0000000000000642 R09: 00007ffcdeac0080
R10: 00007ffcdeac0090 R11: 000000000004cbb8 R12: 0000000000000000
R13: 00007ffcdea11def R14: 00007fe035c33300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bb833a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460
2 locks held by getty/3286:
#0: ffff88802320e098 (&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
1 lock held by syz-executor.0/7823:
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2b10 kernel/exit.c:793
1 lock held by syz-executor.0/7825:
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2b10 kernel/exit.c:793
1 lock held by syz-executor.0/7828:
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2b10 kernel/exit.c:793
1 lock held by syz-executor.0/7829:
1 lock held by syz-executor.0/7830:
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2b10 kernel/exit.c:793
1 lock held by syz-executor.0/7831:
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2b10 kernel/exit.c:793
1 lock held by syz-executor.0/7832:
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: exit_mm kernel/exit.c:483 [inline]
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: do_exit+0x91f/0x2b10 kernel/exit.c:793
1 lock held by syz-executor.0/7833:
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff88807b2d5528 (&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.0/7834:
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#0: ffff88807b2d5528 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x9d6/0x11c0 arch/x86/mm/fault.c:1348
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-next-20220114-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: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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7829 Comm: syz-executor.0 Not tainted 5.16.0-next-20220114-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__this_cpu_preempt_check+0xd/0x20 lib/smp_processor_id.c:66
Code: 00 00 48 c7 c6 e0 01 06 8a 48 c7 c7 20 02 06 8a e9 78 fe ff ff 0f 1f 84 00 00 00 00 00 55 48 89 fd 0f 1f 44 00 00 48 89 ee 5d <48> c7 c7 60 02 06 8a e9 57 fe ff ff cc cc cc cc cc cc cc eb 1e 0f
RSP: 0018:ffffc9000fc4f9b8 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff89ac2e40 RDI: ffffffff89ac2e40
RBP: ffffffff8bb832e0 R08: 0000000000000000 R09: ffffffff8d949717
R10: fffffbfff1b292e2 R11: 0000000000000001 R12: ffff88801bcb1d40
R13: 0000000000000000 R14: 00000000ffffffff R15: ffff88801bcb27a8
FS: 00007fe035cd8700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3a6f973680 CR3: 000000007997a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lockdep_recursion_finish kernel/locking/lockdep.c:438 [inline]
lock_is_held_type+0xd7/0x140 kernel/locking/lockdep.c:5683
lock_is_held include/linux/lockdep.h:283 [inline]
rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125
trace_lock_acquire include/trace/events/lock.h:13 [inline]
lock_acquire+0x442/0x510 kernel/locking/lockdep.c:5610
__mutex_lock_common kernel/locking/mutex.c:600 [inline]
__mutex_lock+0x12f/0x12f0 kernel/locking/mutex.c:733
perf_mmap+0x62e/0x1a50 kernel/events/core.c:6275
call_mmap include/linux/fs.h:2079 [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: 0033:0x7fe0373a4fe9
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:00007fe035cd8168 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fe0374b8100 RCX: 00007fe0373a4fe9
RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020ffc000
RBP: 00007fe0373ff08d R08: 0000000000000004 R09: 0000000000000000
R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcdea11def R14: 00007fe035cd8300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 48 c7 c6 e0 01 06 8a mov $0xffffffff8a0601e0,%rsi
9: 48 c7 c7 20 02 06 8a mov $0xffffffff8a060220,%rdi
10: e9 78 fe ff ff jmpq 0xfffffe8d
15: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1)
1c: 00
1d: 55 push %rbp
1e: 48 89 fd mov %rdi,%rbp
21: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
26: 48 89 ee mov %rbp,%rsi
29: 5d pop %rbp
* 2a: 48 c7 c7 60 02 06 8a mov $0xffffffff8a060260,%rdi <-- trapping instruction
31: e9 57 fe ff ff jmpq 0xfffffe8d
36: cc int3
37: cc int3
38: cc int3
39: cc int3
3a: cc int3
3b: cc int3
3c: cc int3
3d: eb 1e jmp 0x5d
3f: 0f .byte 0xf