------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Tainted: G L
------------------------------------------------------
syz.1.427/8274 is trying to acquire lock:
ffffffff8e6f53c0 (console_owner){-.-.}-{0:0}, at: console_lock_spinning_enable+0x61/0x80 kernel/printk/printk.c:1902
but task is already holding lock:
ffff8880b843b2e0 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:655 [inline]
ffff8880b843b2e0 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x88/0x140 kernel/sched/core.c:639
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #4 (&rq->__lock){-.-.}-{2:2}:
_raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
raw_spin_rq_lock_nested+0x2c/0x140 kernel/sched/core.c:647
raw_spin_rq_lock kernel/sched/sched.h:1615 [inline]
_task_rq_lock+0xcf/0x490 kernel/sched/core.c:747
cgroup_move_task+0x81/0x2b0 kernel/sched/psi.c:1170
css_set_move_task+0x285/0x600 kernel/cgroup/cgroup.c:948
cgroup_post_fork+0x202/0x9b0 kernel/cgroup/cgroup.c:6911
copy_process+0x5f26/0x7a10 kernel/fork.c:2467
kernel_clone+0xfc/0x9a0 kernel/fork.c:2654
user_mode_thread+0xcc/0x110 kernel/fork.c:2730
rest_init+0x21/0x260 init/main.c:725
start_kernel+0x47f/0x480 init/main.c:1210
x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310
x86_64_start_kernel+0x12b/0x130 arch/x86/kernel/head64.c:291
common_startup_64+0x13e/0x148
-> #3 (&p->pi_lock){-.-.}-{2:2}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline]
_raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:570 [inline]
try_to_wake_up+0xb2/0x1a80 kernel/sched/core.c:4130
__wake_up_common+0x135/0x1f0 kernel/sched/wait.c:108
__wake_up_common_lock kernel/sched/wait.c:125 [inline]
__wake_up+0x31/0x60 kernel/sched/wait.c:146
tty_port_default_wakeup+0x47/0x60 drivers/tty/tty_port.c:67
serial8250_tx_chars+0x68f/0x860 drivers/tty/serial/8250/8250_port.c:1719
serial8250_handle_irq+0x73e/0xcb0 drivers/tty/serial/8250/8250_port.c:1827
serial8250_default_handle_irq+0x9e/0x270 drivers/tty/serial/8250/8250_port.c:1846
serial8250_interrupt+0xf8/0x1d0 drivers/tty/serial/8250/8250_core.c:86
__handle_irq_event_percpu+0x232/0x8e0 kernel/irq/handle.c:209
handle_irq_event_percpu kernel/irq/handle.c:246 [inline]
handle_irq_event+0xab/0x1e0 kernel/irq/handle.c:263
handle_edge_irq+0x375/0x970 kernel/irq/chip.c:855
generic_handle_irq_desc include/linux/irqdesc.h:186 [inline]
handle_irq arch/x86/kernel/irq.c:262 [inline]
call_irq_handler arch/x86/kernel/irq.c:318 [inline]
__common_interrupt+0xd8/0x2f0 arch/x86/kernel/irq.c:333
common_interrupt+0xb9/0xe0 arch/x86/kernel/irq.c:326
asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:688
native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:62
arch_safe_halt arch/x86/include/asm/paravirt.h:73 [inline]
default_idle+0x9/0x10 arch/x86/kernel/process.c:767
default_idle_call+0x6c/0xb0 kernel/sched/idle.c:122
cpuidle_idle_call kernel/sched/idle.c:191 [inline]
do_idle+0x35b/0x4b0 kernel/sched/idle.c:332
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:430
rest_init+0x251/0x260 init/main.c:760
start_kernel+0x47f/0x480 init/main.c:1210
x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310
x86_64_start_kernel+0x12b/0x130 arch/x86/kernel/head64.c:291
common_startup_64+0x13e/0x148
-> #2 (&tty->write_wait){-.-.}-{3:3}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline]
_raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
__wake_up_common_lock kernel/sched/wait.c:124 [inline]
__wake_up+0x1c/0x60 kernel/sched/wait.c:146
tty_port_default_wakeup+0x47/0x60 drivers/tty/tty_port.c:67
serial8250_tx_chars+0x68f/0x860 drivers/tty/serial/8250/8250_port.c:1719
serial8250_handle_irq+0x73e/0xcb0 drivers/tty/serial/8250/8250_port.c:1827
serial8250_default_handle_irq+0x9e/0x270 drivers/tty/serial/8250/8250_port.c:1846
serial8250_interrupt+0xf8/0x1d0 drivers/tty/serial/8250/8250_core.c:86
__handle_irq_event_percpu+0x232/0x8e0 kernel/irq/handle.c:209
handle_irq_event_percpu kernel/irq/handle.c:246 [inline]
handle_irq_event+0xab/0x1e0 kernel/irq/handle.c:263
handle_edge_irq+0x375/0x970 kernel/irq/chip.c:855
generic_handle_irq_desc include/linux/irqdesc.h:186 [inline]
handle_irq arch/x86/kernel/irq.c:262 [inline]
call_irq_handler arch/x86/kernel/irq.c:318 [inline]
__common_interrupt+0xd8/0x2f0 arch/x86/kernel/irq.c:333
common_interrupt+0xb9/0xe0 arch/x86/kernel/irq.c:326
asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:688
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline]
_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194
spin_unlock_irqrestore include/linux/spinlock.h:407 [inline]
uart_port_unlock_irqrestore include/linux/serial_core.h:788 [inline]
uart_port_unlock_deref drivers/tty/serial/serial_core.c:91 [inline]
uart_port_unlock_deref drivers/tty/serial/serial_core.c:88 [inline]
uart_write+0x29d/0xb20 drivers/tty/serial/serial_core.c:634
process_output_block drivers/tty/n_tty.c:557 [inline]
n_tty_write+0x44f/0x12d0 drivers/tty/n_tty.c:2366
iterate_tty_write drivers/tty/tty_io.c:1006 [inline]
file_tty_write.isra.0+0x4d2/0x890 drivers/tty/tty_io.c:1081
tty_write drivers/tty/tty_io.c:1102 [inline]
redirected_tty_write drivers/tty/tty_io.c:1125 [inline]
redirected_tty_write+0xd4/0x120 drivers/tty/tty_io.c:1105
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x6ac/0x1070 fs/read_write.c:688
ksys_write+0x12a/0x250 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #1 (&port_lock_key){-.-.}-{3:3}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline]
_raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
uart_port_lock_irqsave include/linux/serial_core.h:717 [inline]
serial8250_console_write+0x17e/0x1900 drivers/tty/serial/8250/8250_port.c:3301
console_emit_next_record kernel/printk/printk.c:3183 [inline]
console_flush_one_record+0x790/0xe50 kernel/printk/printk.c:3269
console_flush_all kernel/printk/printk.c:3343 [inline]
__console_flush_and_unlock kernel/printk/printk.c:3373 [inline]
console_unlock+0x103/0x260 kernel/printk/printk.c:3413
vprintk_emit+0x407/0x6b0 kernel/printk/printk.c:2479
_printk+0xcf/0x110 kernel/printk/printk.c:2504
register_console.cold+0xc0/0x248 kernel/printk/printk.c:4208
univ8250_console_init+0x6f/0x80 drivers/tty/serial/8250/8250_core.c:515
console_init+0x423/0x620 kernel/printk/printk.c:4407
start_kernel+0x305/0x480 init/main.c:1147
x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310
x86_64_start_kernel+0x12b/0x130 arch/x86/kernel/head64.c:291
common_startup_64+0x13e/0x148
-> #0 (console_owner){-.-.}-{0:0}:
check_prev_add kernel/locking/lockdep.c:3165 [inline]
check_prevs_add kernel/locking/lockdep.c:3284 [inline]
validate_chain kernel/locking/lockdep.c:3908 [inline]
__lock_acquire+0x14b8/0x2630 kernel/locking/lockdep.c:5237
lock_acquire kernel/locking/lockdep.c:5868 [inline]
lock_acquire+0x1cf/0x380 kernel/locking/lockdep.c:5825
console_lock_spinning_enable+0x72/0x80 kernel/printk/printk.c:1902
console_emit_next_record kernel/printk/printk.c:3177 [inline]
console_flush_one_record+0x739/0xe50 kernel/printk/printk.c:3269
console_flush_all kernel/printk/printk.c:3343 [inline]
__console_flush_and_unlock kernel/printk/printk.c:3373 [inline]
console_unlock+0x103/0x260 kernel/printk/printk.c:3413
vprintk_emit+0x407/0x6b0 kernel/printk/printk.c:2479
_printk+0xcf/0x110 kernel/printk/printk.c:2504
__report_bug.cold+0x15/0x137 lib/bug.c:243
report_bug+0xb2/0x220 lib/bug.c:281
handle_bug+0x16a/0x2a0 arch/x86/kernel/traps.c:435
exc_invalid_op+0x17/0x50 arch/x86/kernel/traps.c:489
asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:616
lockdep_assert_rq_held kernel/sched/sched.h:1600 [inline]
lockdep_assert_rq_held kernel/sched/sched.h:1597 [inline]
update_rq_clock+0x40a/0xd20 kernel/sched/core.c:850
pick_next_task kernel/sched/core.c:6129 [inline]
__schedule+0x1b7d/0x6120 kernel/sched/core.c:6849
preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7235
irqentry_exit+0x17b/0x670 kernel/entry/common.c:239
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
__kasan_check_write+0x0/0x20 mm/kasan/shadow.c:31
instrument_atomic_read_write include/linux/instrumented.h:112 [inline]
atomic_sub_and_test include/linux/atomic/atomic-instrumented.h:1365 [inline]
page_ref_sub_and_test include/linux/page_ref.h:177 [inline]
folio_ref_sub_and_test include/linux/page_ref.h:186 [inline]
folios_put_refs+0x1e0/0x840 mm/swap.c:974
free_pages_and_swap_cache+0x242/0x480 mm/swap_state.c:423
__tlb_batch_free_encoded_pages+0xe9/0x280 mm/mmu_gather.c:138
tlb_batch_pages_flush mm/mmu_gather.c:151 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:398 [inline]
tlb_flush_mmu+0xe9/0x590 mm/mmu_gather.c:405
zap_pte_range mm/memory.c:1968 [inline]
zap_pmd_range mm/memory.c:2021 [inline]
zap_pud_range mm/memory.c:2049 [inline]
zap_p4d_range mm/memory.c:2070 [inline]
unmap_page_range+0x2333/0x4840 mm/memory.c:2091
unmap_single_vma+0x153/0x240 mm/memory.c:2133
unmap_vmas+0x295/0x590 mm/memory.c:2171
exit_mmap+0x1ef/0xa30 mm/mmap.c:1302
__mmput+0x12a/0x410 kernel/fork.c:1174
mmput+0x67/0x80 kernel/fork.c:1197
exit_mm kernel/exit.c:581 [inline]
do_exit+0x78a/0x2aa0 kernel/exit.c:959
do_group_exit+0xd5/0x2a0 kernel/exit.c:1112
get_signal+0x1ec7/0x21e0 kernel/signal.c:3034
arch_do_signal_or_restart+0x91/0x770 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
exit_to_user_mode_loop kernel/entry/common.c:98 [inline]
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:270 [inline]
irqentry_exit_to_user_mode include/linux/irq-entry-common.h:339 [inline]
irqentry_exit+0x1f8/0x670 kernel/entry/common.c:219
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
other info that might help us debug this:
Chain exists of:
console_owner --> &p->pi_lock --> &rq->__lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&rq->__lock);
lock(&p->pi_lock);
lock(&rq->__lock);
lock(console_owner);
*** DEADLOCK ***
4 locks held by syz.1.427/8274:
#0: ffff8880344b0340 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:592 [inline]
#0: ffff8880344b0340 (&mm->mmap_lock){++++}-{4:4}, at: exit_mmap+0x124/0xa30 mm/mmap.c:1286
#1: ffff8880b843b2e0 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:655 [inline]
#1: ffff8880b843b2e0 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x88/0x140 kernel/sched/core.c:639
#2: ffffffff8e7d5800 (console_lock){+.+.}-{0:0}, at: _printk+0xcf/0x110 kernel/printk/printk.c:2504
#3: ffffffff8e7d5878 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:317 [inline]
#3: ffffffff8e7d5878 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:428 [inline]
#3: ffffffff8e7d5878 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:291 [inline]
#3: ffffffff8e7d5878 (console_srcu){....}-{0:0}, at: console_flush_one_record+0xfd/0xe50 kernel/printk/printk.c:3246
stack backtrace:
CPU: 0 UID: 0 PID: 8274 Comm: syz.1.427 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
print_circular_bug.cold+0x178/0x1c7 kernel/locking/lockdep.c:2043
check_noncircular+0x146/0x160 kernel/locking/lockdep.c:2175
check_prev_add kernel/locking/lockdep.c:3165 [inline]
check_prevs_add kernel/locking/lockdep.c:3284 [inline]
validate_chain kernel/locking/lockdep.c:3908 [inline]
__lock_acquire+0x14b8/0x2630 kernel/locking/lockdep.c:5237
lock_acquire kernel/locking/lockdep.c:5868 [inline]
lock_acquire+0x1cf/0x380 kernel/locking/lockdep.c:5825
console_lock_spinning_enable+0x72/0x80 kernel/printk/printk.c:1902
console_emit_next_record kernel/printk/printk.c:3177 [inline]
console_flush_one_record+0x739/0xe50 kernel/printk/printk.c:3269
console_flush_all kernel/printk/printk.c:3343 [inline]
__console_flush_and_unlock kernel/printk/printk.c:3373 [inline]
console_unlock+0x103/0x260 kernel/printk/printk.c:3413
vprintk_emit+0x407/0x6b0 kernel/printk/printk.c:2479
_printk+0xcf/0x110 kernel/printk/printk.c:2504
__report_bug.cold+0x15/0x137 lib/bug.c:243
report_bug+0xb2/0x220 lib/bug.c:281
handle_bug+0x16a/0x2a0 arch/x86/kernel/traps.c:435
exc_invalid_op+0x17/0x50 arch/x86/kernel/traps.c:489
asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:616
RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1600 [inline]
RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1597 [inline]
RIP: 0010:update_rq_clock+0x40a/0xd20 kernel/sched/core.c:850
Code: ab 48 0b 00 00 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f e9 18 9f ba 09 a8 04 0f 84 df fc ff ff 90 0f 0b 90 e9 d6 fc ff ff 90 <0f> 0b 90 e9 92 fc ff ff 4c 8d 83 40 0b 00 00 48 b8 00 00 00 00 00
RSP: 0018:ffffc90004846ea0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8880b853b280 RCX: 0000000000000001
RDX: 0000000000000046 RSI: ffffffff8de558ca RDI: ffffffff8c1af620
RBP: ffffc90004847048 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff90d9b217 R11: 0000000000000000 R12: ffffffff90d9e5e4
R13: ffff8880b853c0c0 R14: ffff88801e6e9e80 R15: ffff8880b853b280
pick_next_task kernel/sched/core.c:6129 [inline]
__schedule+0x1b7d/0x6120 kernel/sched/core.c:6849
preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7235
irqentry_exit+0x17b/0x670 kernel/entry/common.c:239
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__kasan_check_write+0x0/0x20 mm/kasan/shadow.c:36
Code: 0c 24 89 f6 31 d2 e9 0f f3 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 0c 24 89 f6 ba 01 00 00 00 e9 dc f2 ff ff 66 66
RSP: 0018:ffffc90004847150 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffffea0001023840 RCX: ffffffff8245cb40
RDX: ffff88802c1e3d00 RSI: 0000000000000004 RDI: ffffea0001023874
RBP: 0000000000000004 R08: 0000000000000005 R09: 0000000000000004
R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90004847298
R13: dffffc0000000000 R14: ffffc90004847328 R15: ffffc90004847350
instrument_atomic_read_write include/linux/instrumented.h:112 [inline]
atomic_sub_and_test include/linux/atomic/atomic-instrumented.h:1365 [inline]
page_ref_sub_and_test include/linux/page_ref.h:177 [inline]
folio_ref_sub_and_test include/linux/page_ref.h:186 [inline]
folios_put_refs+0x1e0/0x840 mm/swap.c:974
free_pages_and_swap_cache+0x242/0x480 mm/swap_state.c:423
__tlb_batch_free_encoded_pages+0xe9/0x280 mm/mmu_gather.c:138
tlb_batch_pages_flush mm/mmu_gather.c:151 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:398 [inline]
tlb_flush_mmu+0xe9/0x590 mm/mmu_gather.c:405
zap_pte_range mm/memory.c:1968 [inline]
zap_pmd_range mm/memory.c:2021 [inline]
zap_pud_range mm/memory.c:2049 [inline]
zap_p4d_range mm/memory.c:2070 [inline]
unmap_page_range+0x2333/0x4840 mm/memory.c:2091
unmap_single_vma+0x153/0x240 mm/memory.c:2133
unmap_vmas+0x295/0x590 mm/memory.c:2171
exit_mmap+0x1ef/0xa30 mm/mmap.c:1302
__mmput+0x12a/0x410 kernel/fork.c:1174
mmput+0x67/0x80 kernel/fork.c:1197
exit_mm kernel/exit.c:581 [inline]
do_exit+0x78a/0x2aa0 kernel/exit.c:959
do_group_exit+0xd5/0x2a0 kernel/exit.c:1112
get_signal+0x1ec7/0x21e0 kernel/signal.c:3034
arch_do_signal_or_restart+0x91/0x770 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
exit_to_user_mode_loop kernel/entry/common.c:98 [inline]
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:270 [inline]
irqentry_exit_to_user_mode include/linux/irq-entry-common.h:339 [inline]
irqentry_exit+0x1f8/0x670 kernel/entry/common.c:219
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x4021000
Code: Unable to access opcode bytes at 0x4020fd6.
RSP: 002b:0000000000000011 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00007f1a16816090 RCX: 00007f1a1659c799
RDX: 9999999999999999 RSI: 0000000000000009 RDI: 0000000100000008
RBP: 00007f1a16632bd9 R08: 0000000004000006 R09: 0000000000000000
R10: ffffffff81000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1a16816128 R14: 00007f1a16816090 R15: 00007fff3cc90b68
debug_locks && !(lock_is_held(&(__rq_lockp(rq))->dep_map) != 0)
WARNING: kernel/sched/sched.h:1600 at lockdep_assert_rq_held kernel/sched/sched.h:1600 [inline], CPU#0: syz.1.427/8274
WARNING: kernel/sched/sched.h:1600 at lockdep_assert_rq_held kernel/sched/sched.h:1597 [inline], CPU#0: syz.1.427/8274
WARNING: kernel/sched/sched.h:1600 at update_rq_clock+0x40a/0xd20 kernel/sched/core.c:850, CPU#0: syz.1.427/8274
Modules linked in:
CPU: 0 UID: 0 PID: 8274 Comm: syz.1.427 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1600 [inline]
RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1597 [inline]
RIP: 0010:update_rq_clock+0x40a/0xd20 kernel/sched/core.c:850
Code: ab 48 0b 00 00 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f e9 18 9f ba 09 a8 04 0f 84 df fc ff ff 90 0f 0b 90 e9 d6 fc ff ff 90 <0f> 0b 90 e9 92 fc ff ff 4c 8d 83 40 0b 00 00 48 b8 00 00 00 00 00
RSP: 0018:ffffc90004846ea0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8880b853b280 RCX: 0000000000000001
RDX: 0000000000000046 RSI: ffffffff8de558ca RDI: ffffffff8c1af620
RBP: ffffc90004847048 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff90d9b217 R11: 0000000000000000 R12: ffffffff90d9e5e4
R13: ffff8880b853c0c0 R14: ffff88801e6e9e80 R15: ffff8880b853b280
FS: 0000000000000000(0000) GS:ffff88812434e000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1a13f8eff8 CR3: 000000002aeb4000 CR4: 00000000003526f0
Call Trace:
pick_next_task kernel/sched/core.c:6129 [inline]
__schedule+0x1b7d/0x6120 kernel/sched/core.c:6849
preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7235
irqentry_exit+0x17b/0x670 kernel/entry/common.c:239
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__kasan_check_write+0x0/0x20 mm/kasan/shadow.c:36
Code: 0c 24 89 f6 31 d2 e9 0f f3 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 0c 24 89 f6 ba 01 00 00 00 e9 dc f2 ff ff 66 66
RSP: 0018:ffffc90004847150 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffffea0001023840 RCX: ffffffff8245cb40
RDX: ffff88802c1e3d00 RSI: 0000000000000004 RDI: ffffea0001023874
RBP: 0000000000000004 R08: 0000000000000005 R09: 0000000000000004
R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90004847298
R13: dffffc0000000000 R14: ffffc90004847328 R15: ffffc90004847350
instrument_atomic_read_write include/linux/instrumented.h:112 [inline]
atomic_sub_and_test include/linux/atomic/atomic-instrumented.h:1365 [inline]
page_ref_sub_and_test include/linux/page_ref.h:177 [inline]
folio_ref_sub_and_test include/linux/page_ref.h:186 [inline]
folios_put_refs+0x1e0/0x840 mm/swap.c:974
free_pages_and_swap_cache+0x242/0x480 mm/swap_state.c:423
__tlb_batch_free_encoded_pages+0xe9/0x280 mm/mmu_gather.c:138
tlb_batch_pages_flush mm/mmu_gather.c:151 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:398 [inline]
tlb_flush_mmu+0xe9/0x590 mm/mmu_gather.c:405
zap_pte_range mm/memory.c:1968 [inline]
zap_pmd_range mm/memory.c:2021 [inline]
zap_pud_range mm/memory.c:2049 [inline]
zap_p4d_range mm/memory.c:2070 [inline]
unmap_page_range+0x2333/0x4840 mm/memory.c:2091
unmap_single_vma+0x153/0x240 mm/memory.c:2133
unmap_vmas+0x295/0x590 mm/memory.c:2171
exit_mmap+0x1ef/0xa30 mm/mmap.c:1302
__mmput+0x12a/0x410 kernel/fork.c:1174
mmput+0x67/0x80 kernel/fork.c:1197
exit_mm kernel/exit.c:581 [inline]
do_exit+0x78a/0x2aa0 kernel/exit.c:959
do_group_exit+0xd5/0x2a0 kernel/exit.c:1112
get_signal+0x1ec7/0x21e0 kernel/signal.c:3034
arch_do_signal_or_restart+0x91/0x770 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
exit_to_user_mode_loop kernel/entry/common.c:98 [inline]
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:270 [inline]
irqentry_exit_to_user_mode include/linux/irq-entry-common.h:339 [inline]
irqentry_exit+0x1f8/0x670 kernel/entry/common.c:219
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x4021000
Code: Unable to access opcode bytes at 0x4020fd6.
RSP: 002b:0000000000000011 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00007f1a16816090 RCX: 00007f1a1659c799
RDX: 9999999999999999 RSI: 0000000000000009 RDI: 0000000100000008
RBP: 00007f1a16632bd9 R08: 0000000004000006 R09: 0000000000000000
R10: ffffffff81000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1a16816128 R14: 00007f1a16816090 R15: 00007fff3cc90b68
----------------
Code disassembly (best guess):
0: 0c 24 or $0x24,%al
2: 89 f6 mov %esi,%esi
4: 31 d2 xor %edx,%edx
6: e9 0f f3 ff ff jmp 0xfffff31a
b: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1)
12: 00 00 00 00
16: 0f 1f 40 00 nopl 0x0(%rax)
1a: 90 nop
1b: 90 nop
1c: 90 nop
1d: 90 nop
1e: 90 nop
1f: 90 nop
20: 90 nop
21: 90 nop
22: 90 nop
23: 90 nop
24: 90 nop
25: 90 nop
26: 90 nop
27: 90 nop
28: 90 nop
29: 90 nop
* 2a: f3 0f 1e fa endbr64 <-- trapping instruction
2e: 48 8b 0c 24 mov (%rsp),%rcx
32: 89 f6 mov %esi,%esi
34: ba 01 00 00 00 mov $0x1,%edx
39: e9 dc f2 ff ff jmp 0xfffff31a
3e: 66 data16
3f: 66 data16