FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
======================================================
WARNING: possible circular locking dependency detected
6.10.0-rc6-syzkaller-00067-g8a9c6c40432e #0 Not tainted
------------------------------------------------------
syz.3.4/5246 is trying to acquire lock:
ffffffff8e328140 (console_owner){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:334 [inline]
ffffffff8e328140 (console_owner){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:232 [inline]
ffffffff8e328140 (console_owner){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:286 [inline]
ffffffff8e328140 (console_owner){....}-{0:0}, at: console_flush_all+0x152/0xfd0 kernel/printk/printk.c:2971
but task is already holding lock:
ffff8880b943e798 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0xb0/0x140 kernel/sched/core.c:567
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #5 (&rq->__lock){-.-.}-{2:2}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
_raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
raw_spin_rq_lock kernel/sched/sched.h:1406 [inline]
rq_lock kernel/sched/sched.h:1702 [inline]
task_fork_fair+0x61/0x1e0 kernel/sched/fair.c:12710
sched_cgroup_fork+0x37e/0x410 kernel/sched/core.c:4844
copy_process+0x2217/0x3dc0 kernel/fork.c:2499
kernel_clone+0x226/0x8f0 kernel/fork.c:2797
user_mode_thread+0x132/0x1a0 kernel/fork.c:2875
rest_init+0x23/0x300 init/main.c:712
start_kernel+0x47a/0x500 init/main.c:1103
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507
x86_64_start_kernel+0x99/0xa0 arch/x86/kernel/head64.c:488
common_startup_64+0x13e/0x147
-> #4 (&p->pi_lock){-.-.}-{2:2}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:553 [inline]
try_to_wake_up+0xb0/0x1470 kernel/sched/core.c:4262
create_worker+0x507/0x720 kernel/workqueue.c:2835
workqueue_init+0x520/0x8a0 kernel/workqueue.c:7877
kernel_init_freeable+0x3fe/0x5d0 init/main.c:1562
kernel_init+0x1d/0x2b0 init/main.c:1467
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
-> #3 (&pool->lock){-.-.}-{2:2}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
__queue_work+0x6e5/0xee0
queue_work_on+0x1c2/0x380 kernel/workqueue.c:2411
queue_work include/linux/workqueue.h:621 [inline]
rpm_suspend+0xe70/0x1730 drivers/base/power/runtime.c:662
__pm_runtime_idle+0x131/0x1a0 drivers/base/power/runtime.c:1104
pm_runtime_put include/linux/pm_runtime.h:448 [inline]
__device_attach+0x3e5/0x520 drivers/base/dd.c:1046
bus_probe_device+0x189/0x260 drivers/base/bus.c:532
device_add+0x856/0xbf0 drivers/base/core.c:3679
serial_base_port_add+0x2b6/0x3f0 drivers/tty/serial/serial_base_bus.c:178
serial_core_port_device_add drivers/tty/serial/serial_core.c:3380 [inline]
serial_core_register_port+0x381/0x23a0 drivers/tty/serial/serial_core.c:3421
serial8250_register_8250_port+0x1433/0x1cd0 drivers/tty/serial/8250/8250_core.c:1135
serial_pnp_probe+0x4f9/0x9d0 drivers/tty/serial/8250/8250_pnp.c:490
pnp_device_probe+0x2bc/0x460 drivers/pnp/driver.c:111
really_probe+0x2ba/0xad0 drivers/base/dd.c:656
__driver_probe_device+0x1a2/0x390 drivers/base/dd.c:798
driver_probe_device+0x50/0x430 drivers/base/dd.c:828
__driver_attach+0x45f/0x710 drivers/base/dd.c:1214
bus_for_each_dev+0x23b/0x2b0 drivers/base/bus.c:368
bus_add_driver+0x346/0x670 drivers/base/bus.c:673
driver_register+0x23a/0x320 drivers/base/driver.c:246
serial8250_init+0x9e/0x170 drivers/tty/serial/8250/8250_core.c:1236
do_one_initcall+0x24a/0x880 init/main.c:1267
do_initcall_level+0x157/0x210 init/main.c:1329
do_initcalls+0x3f/0x80 init/main.c:1345
kernel_init_freeable+0x435/0x5d0 init/main.c:1578
kernel_init+0x1d/0x2b0 init/main.c:1467
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
-> #2 (&dev->power.lock){-.-.}-{2:2}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
__pm_runtime_resume+0x112/0x180 drivers/base/power/runtime.c:1171
pm_runtime_get include/linux/pm_runtime.h:396 [inline]
__uart_start+0x17c/0x450 drivers/tty/serial/serial_core.c:148
uart_write+0x152/0x380 drivers/tty/serial/serial_core.c:633
process_output_block drivers/tty/n_tty.c:574 [inline]
n_tty_write+0xd6c/0x1230 drivers/tty/n_tty.c:2389
iterate_tty_write drivers/tty/tty_io.c:1021 [inline]
file_tty_write+0x551/0x9b0 drivers/tty/tty_io.c:1096
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa74/0xc90 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #1 (&port_lock_key){-...}-{2:2}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
uart_port_lock_irqsave include/linux/serial_core.h:618 [inline]
serial8250_console_write+0x1a8/0x1770 drivers/tty/serial/8250/8250_port.c:3352
console_emit_next_record kernel/printk/printk.c:2913 [inline]
console_flush_all+0x867/0xfd0 kernel/printk/printk.c:2979
console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3048
vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2348
_printk+0xd5/0x120 kernel/printk/printk.c:2373
register_console+0x727/0xcf0 kernel/printk/printk.c:3581
univ8250_console_init+0x49/0x50 drivers/tty/serial/8250/8250_core.c:714
console_init+0x1b8/0x6f0 kernel/printk/printk.c:3727
start_kernel+0x2d3/0x500 init/main.c:1038
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507
x86_64_start_kernel+0x99/0xa0 arch/x86/kernel/head64.c:488
common_startup_64+0x13e/0x147
-> #0 (console_owner){....}-{0:0}:
check_prev_add kernel/locking/lockdep.c:3134 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3869
__lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
console_lock_spinning_enable kernel/printk/printk.c:1873 [inline]
console_emit_next_record kernel/printk/printk.c:2907 [inline]
console_flush_all+0x810/0xfd0 kernel/printk/printk.c:2979
console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3048
vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2348
_printk+0xd5/0x120 kernel/printk/printk.c:2373
fail_dump lib/fault-inject.c:45 [inline]
should_fail_ex+0x391/0x4e0 lib/fault-inject.c:153
strncpy_from_user+0x36/0x2f0 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x71/0x140 mm/maccess.c:186
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:216 [inline]
____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:311 [inline]
bpf_probe_read_compat_str+0xe9/0x180 kernel/trace/bpf_trace.c:307
bpf_prog_e3f550b2299101ce+0x40/0x46
bpf_dispatcher_nop_func include/linux/bpf.h:1243 [inline]
__bpf_prog_run include/linux/filter.h:691 [inline]
bpf_prog_run include/linux/filter.h:698 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2403 [inline]
bpf_trace_run4+0x336/0x590 kernel/trace/bpf_trace.c:2446
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x2587/0x4a20 kernel/sched/core.c:6742
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5758
mmu_notifier_invalidate_range_start include/linux/mmu_notifier.h:436 [inline]
try_to_unmap_one+0x885/0x35b0 mm/rmap.c:1668
rmap_walk_anon+0x4cf/0x8a0 mm/rmap.c:2605
try_to_unmap+0x243/0x2e0
shrink_folio_list+0x2522/0x8f70 mm/vmscan.c:1278
reclaim_folio_list mm/vmscan.c:2125 [inline]
reclaim_pages+0x921/0xc70 mm/vmscan.c:2161
madvise_cold_or_pageout_pte_range+0x2964/0x32a0 mm/madvise.c:550
walk_pmd_range mm/pagewalk.c:143 [inline]
walk_pud_range mm/pagewalk.c:221 [inline]
walk_p4d_range mm/pagewalk.c:256 [inline]
walk_pgd_range+0xba3/0x1810 mm/pagewalk.c:293
__walk_page_range+0x132/0x720 mm/pagewalk.c:395
walk_page_range+0x58f/0x7c0 mm/pagewalk.c:521
madvise_pageout_page_range mm/madvise.c:609 [inline]
madvise_pageout mm/madvise.c:636 [inline]
madvise_vma_behavior mm/madvise.c:1042 [inline]
madvise_walk_vmas mm/madvise.c:1268 [inline]
do_madvise+0x3219/0x4590 mm/madvise.c:1464
__do_sys_madvise mm/madvise.c:1481 [inline]
__se_sys_madvise mm/madvise.c:1479 [inline]
__x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1479
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
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 ***
7 locks held by syz.3.4/5246:
#0: ffff888079711e18 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:144 [inline]
#0: ffff888079711e18 (&mm->mmap_lock){++++}-{3:3}, at: do_madvise+0x481/0x4590 mm/madvise.c:1442
#1: ffff88807ddffb18 (&anon_vma->rwsem){++++}-{3:3}, at: folio_lock_anon_vma_read+0x168/0x670 mm/rmap.c:560
#2: ffffffff8e43d7c0 (mmu_notifier_invalidate_range_start){+.+.}-{0:0}, at: mmu_notifier_invalidate_range_start include/linux/mmu_notifier.h:436 [inline]
#2: ffffffff8e43d7c0 (mmu_notifier_invalidate_range_start){+.+.}-{0:0}, at: try_to_unmap_one+0x861/0x35b0 mm/rmap.c:1668
#3: ffff8880b943e798 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0xb0/0x140 kernel/sched/core.c:567
#4: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#4: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#4: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2402 [inline]
#4: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x244/0x590 kernel/trace/bpf_trace.c:2446
#5: ffffffff8e20fa60 (console_lock){+.+.}-{0:0}, at: _printk+0xd5/0x120 kernel/printk/printk.c:2373
#6: ffffffff8e20f690 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:334 [inline]
#6: ffffffff8e20f690 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:232 [inline]
#6: ffffffff8e20f690 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:286 [inline]
#6: ffffffff8e20f690 (console_srcu){....}-{0:0}, at: console_flush_all+0x152/0xfd0 kernel/printk/printk.c:2971
stack backtrace:
CPU: 1 PID: 5246 Comm: syz.3.4 Not tainted 6.10.0-rc6-syzkaller-00067-g8a9c6c40432e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2187
check_prev_add kernel/locking/lockdep.c:3134 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3869
__lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
console_lock_spinning_enable kernel/printk/printk.c:1873 [inline]
console_emit_next_record kernel/printk/printk.c:2907 [inline]
console_flush_all+0x810/0xfd0 kernel/printk/printk.c:2979
console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3048
vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2348
_printk+0xd5/0x120 kernel/printk/printk.c:2373
fail_dump lib/fault-inject.c:45 [inline]
should_fail_ex+0x391/0x4e0 lib/fault-inject.c:153
strncpy_from_user+0x36/0x2f0 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x71/0x140 mm/maccess.c:186
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:216 [inline]
____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:311 [inline]
bpf_probe_read_compat_str+0xe9/0x180 kernel/trace/bpf_trace.c:307
bpf_prog_e3f550b2299101ce+0x40/0x46
bpf_dispatcher_nop_func include/linux/bpf.h:1243 [inline]
__bpf_prog_run include/linux/filter.h:691 [inline]
bpf_prog_run include/linux/filter.h:698 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2403 [inline]
bpf_trace_run4+0x336/0x590 kernel/trace/bpf_trace.c:2446
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x2587/0x4a20 kernel/sched/core.c:6742
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5758
Code: 2b 00 74 08 4c 89 f7 e8 6a 73 89 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc90002f06320 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff920005e0c70 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcaccc0 RDI: ffffffff8c1fe940
RBP: ffffc90002f06468 R08: ffffffff92fa75b7 R09: 1ffffffff25f4eb6
R10: dffffc0000000000 R11: fffffbfff25f4eb7 R12: 1ffff920005e0c6c
R13: dffffc0000000000 R14: ffffc90002f06380 R15: 0000000000000246
mmu_notifier_invalidate_range_start include/linux/mmu_notifier.h:436 [inline]
try_to_unmap_one+0x885/0x35b0 mm/rmap.c:1668
rmap_walk_anon+0x4cf/0x8a0 mm/rmap.c:2605
try_to_unmap+0x243/0x2e0
shrink_folio_list+0x2522/0x8f70 mm/vmscan.c:1278
reclaim_folio_list mm/vmscan.c:2125 [inline]
reclaim_pages+0x921/0xc70 mm/vmscan.c:2161
madvise_cold_or_pageout_pte_range+0x2964/0x32a0 mm/madvise.c:550
walk_pmd_range mm/pagewalk.c:143 [inline]
walk_pud_range mm/pagewalk.c:221 [inline]
walk_p4d_range mm/pagewalk.c:256 [inline]
walk_pgd_range+0xba3/0x1810 mm/pagewalk.c:293
__walk_page_range+0x132/0x720 mm/pagewalk.c:395
walk_page_range+0x58f/0x7c0 mm/pagewalk.c:521
madvise_pageout_page_range mm/madvise.c:609 [inline]
madvise_pageout mm/madvise.c:636 [inline]
madvise_vma_behavior mm/madvise.c:1042 [inline]
madvise_walk_vmas mm/madvise.c:1268 [inline]
do_madvise+0x3219/0x4590 mm/madvise.c:1464
__do_sys_madvise mm/madvise.c:1481 [inline]
__se_sys_madvise mm/madvise.c:1479 [inline]
__x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1479
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f05ec975bd9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f05ed70e048 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f05ecb04038 RCX: 00007f05ec975bd9
RDX: 0000000000000015 RSI: 0000000000600003 RDI: 0000000020000000
RBP: 00007f05ed70e0a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 000000000000006e R14: 00007f05ecb04038 R15: 00007ffc09cd6028
CPU: 1 PID: 5246 Comm: syz.3.4 Not tainted 6.10.0-rc6-syzkaller-00067-g8a9c6c40432e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
fail_dump lib/fault-inject.c:52 [inline]
should_fail_ex+0x3b0/0x4e0 lib/fault-inject.c:153
strncpy_from_user+0x36/0x2f0 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x71/0x140 mm/maccess.c:186
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:216 [inline]
____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:311 [inline]
bpf_probe_read_compat_str+0xe9/0x180 kernel/trace/bpf_trace.c:307
bpf_prog_e3f550b2299101ce+0x40/0x46
bpf_dispatcher_nop_func include/linux/bpf.h:1243 [inline]
__bpf_prog_run include/linux/filter.h:691 [inline]
bpf_prog_run include/linux/filter.h:698 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2403 [inline]
bpf_trace_run4+0x336/0x590 kernel/trace/bpf_trace.c:2446
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x2587/0x4a20 kernel/sched/core.c:6742
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5758
Code: 2b 00 74 08 4c 89 f7 e8 6a 73 89 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc90002f06320 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff920005e0c70 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcaccc0 RDI: ffffffff8c1fe940
RBP: ffffc90002f06468 R08: ffffffff92fa75b7 R09: 1ffffffff25f4eb6
R10: dffffc0000000000 R11: fffffbfff25f4eb7 R12: 1ffff920005e0c6c
R13: dffffc0000000000 R14: ffffc90002f06380 R15: 0000000000000246
mmu_notifier_invalidate_range_start include/linux/mmu_notifier.h:436 [inline]
try_to_unmap_one+0x885/0x35b0 mm/rmap.c:1668
rmap_walk_anon+0x4cf/0x8a0 mm/rmap.c:2605
try_to_unmap+0x243/0x2e0
shrink_folio_list+0x2522/0x8f70 mm/vmscan.c:1278
reclaim_folio_list mm/vmscan.c:2125 [inline]
reclaim_pages+0x921/0xc70 mm/vmscan.c:2161
madvise_cold_or_pageout_pte_range+0x2964/0x32a0 mm/madvise.c:550
walk_pmd_range mm/pagewalk.c:143 [inline]
walk_pud_range mm/pagewalk.c:221 [inline]
walk_p4d_range mm/pagewalk.c:256 [inline]
walk_pgd_range+0xba3/0x1810 mm/pagewalk.c:293
__walk_page_range+0x132/0x720 mm/pagewalk.c:395
walk_page_range+0x58f/0x7c0 mm/pagewalk.c:521
madvise_pageout_page_range mm/madvise.c:609 [inline]
madvise_pageout mm/madvise.c:636 [inline]
madvise_vma_behavior mm/madvise.c:1042 [inline]
madvise_walk_vmas mm/madvise.c:1268 [inline]
do_madvise+0x3219/0x4590 mm/madvise.c:1464
__do_sys_madvise mm/madvise.c:1481 [inline]
__se_sys_madvise mm/madvise.c:1479 [inline]
__x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1479
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f05ec975bd9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f05ed70e048 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f05ecb04038 RCX: 00007f05ec975bd9
RDX: 0000000000000015 RSI: 0000000000600003 RDI: 0000000020000000
RBP: 00007f05ed70e0a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 000000000000006e R14: 00007f05ecb04038 R15: 00007ffc09cd6028
syz.3.4 (5246) used greatest stack depth: 16304 bytes left
----------------
Code disassembly (best guess):
0: 2b 00 sub (%rax),%eax
2: 74 08 je 0xc
4: 4c 89 f7 mov %r14,%rdi
7: e8 6a 73 89 00 call 0x897376
c: f6 44 24 61 02 testb $0x2,0x61(%rsp)
11: 0f 85 85 01 00 00 jne 0x19c
17: 41 f7 c7 00 02 00 00 test $0x200,%r15d
1e: 74 01 je 0x21
20: fb sti
21: 48 c7 44 24 40 0e 36 movq $0x45e0360e,0x40(%rsp)
28: e0 45
* 2a: 4b c7 44 25 00 00 00 movq $0x0,0x0(%r13,%r12,1) <-- trapping instruction
31: 00 00
33: 43 c7 44 25 09 00 00 movl $0x0,0x9(%r13,%r12,1)
3a: 00 00
3c: 43 rex.XB
3d: c7 .byte 0xc7
3e: 44 rex.R
3f: 25 .byte 0x25