------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
5.15.158-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.1/3635 is trying to acquire lock:
ffffffff8c914660 (console_owner){-...}-{0:0}, at: console_lock_spinning_enable+0x2c/0x60 kernel/printk/printk.c:1802
but task is already holding lock:
ffff8880b9b2a218 (hrtimer_bases.lock){-.-.}-{2:2}, at: __run_hrtimer kernel/time/hrtimer.c:1690 [inline]
ffff8880b9b2a218 (hrtimer_bases.lock){-.-.}-{2:2}, at: __hrtimer_run_queues+0x662/0xcf0 kernel/time/hrtimer.c:1750
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #6 (hrtimer_bases.lock){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
lock_hrtimer_base kernel/time/hrtimer.c:173 [inline]
hrtimer_start_range_ns+0xd8/0xc50 kernel/time/hrtimer.c:1297
hrtimer_start_expires include/linux/hrtimer.h:434 [inline]
do_start_rt_bandwidth kernel/sched/rt.c:69 [inline]
start_rt_bandwidth kernel/sched/rt.c:80 [inline]
inc_rt_group kernel/sched/rt.c:1207 [inline]
inc_rt_tasks kernel/sched/rt.c:1251 [inline]
__enqueue_rt_entity kernel/sched/rt.c:1321 [inline]
enqueue_rt_entity kernel/sched/rt.c:1368 [inline]
enqueue_task_rt+0x5a0/0xbf0 kernel/sched/rt.c:1398
enqueue_task+0x181/0x3a0 kernel/sched/core.c:1977
activate_task kernel/sched/core.c:2005 [inline]
ttwu_do_activate+0x1cf/0x430 kernel/sched/core.c:3614
sched_ttwu_pending+0x34e/0x730 kernel/sched/core.c:3689
__sysvec_call_function_single+0x9a/0x250 arch/x86/kernel/smp.c:248
sysvec_call_function_single+0x89/0xb0 arch/x86/kernel/smp.c:243
asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:646
native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
acpi_safe_halt drivers/acpi/processor_idle.c:109 [inline]
acpi_idle_do_entry+0x10f/0x340 drivers/acpi/processor_idle.c:570
acpi_idle_enter+0x352/0x4f0 drivers/acpi/processor_idle.c:705
cpuidle_enter_state+0x521/0xef0 drivers/cpuidle/cpuidle.c:237
cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:351
call_cpuidle kernel/sched/idle.c:158 [inline]
cpuidle_idle_call kernel/sched/idle.c:239 [inline]
do_idle+0x3e4/0x670 kernel/sched/idle.c:306
cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:403
start_secondary+0x371/0x500 arch/x86/kernel/smpboot.c:281
secondary_startup_64_no_verify+0xb1/0xbb
-> #5 (&rt_b->rt_runtime_lock){-...}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
__enable_runtime kernel/sched/rt.c:840 [inline]
rq_online_rt+0x123/0x300 kernel/sched/rt.c:2331
set_rq_online kernel/sched/core.c:9037 [inline]
sched_cpu_activate+0x508/0x6b0 kernel/sched/core.c:9144
cpuhp_invoke_callback+0x49f/0x820 kernel/cpu.c:191
cpuhp_thread_fun+0x3ee/0x790 kernel/cpu.c:822
smpboot_thread_fn+0x51b/0x9d0 kernel/smpboot.c:164
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300
-> #4 (&rq->__lock){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
_raw_spin_lock_nested+0x2d/0x40 kernel/locking/spinlock.c:368
raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:475
raw_spin_rq_lock kernel/sched/sched.h:1326 [inline]
rq_lock kernel/sched/sched.h:1621 [inline]
task_fork_fair+0x5d/0x350 kernel/sched/fair.c:11480
sched_cgroup_fork+0x2d3/0x330 kernel/sched/core.c:4466
copy_process+0x224a/0x3ef0 kernel/fork.c:2320
kernel_clone+0x210/0x960 kernel/fork.c:2604
kernel_thread+0x168/0x1e0 kernel/fork.c:2656
rest_init+0x21/0x330 init/main.c:706
start_kernel+0x48c/0x540 init/main.c:1140
secondary_startup_64_no_verify+0xb1/0xbb
-> #3 (&p->pi_lock){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
try_to_wake_up+0xae/0x1300 kernel/sched/core.c:4030
__wake_up_common+0x2a0/0x4e0 kernel/sched/wait.c:108
__wake_up_common_lock kernel/sched/wait.c:138 [inline]
__wake_up+0x112/0x1c0 kernel/sched/wait.c:157
tty_port_default_wakeup+0xa8/0x100 drivers/tty/tty_port.c:51
serial8250_tx_chars+0x60d/0x800 drivers/tty/serial/8250/8250_port.c:1828
serial8250_handle_irq+0x505/0x600 drivers/tty/serial/8250/8250_port.c:1924
serial8250_default_handle_irq+0xc8/0x1e0 drivers/tty/serial/8250/8250_port.c:1941
serial8250_interrupt+0xa1/0x1e0 drivers/tty/serial/8250/8250_core.c:127
__handle_irq_event_percpu+0x292/0xa70 kernel/irq/handle.c:156
handle_irq_event_percpu kernel/irq/handle.c:196 [inline]
handle_irq_event+0xff/0x2b0 kernel/irq/handle.c:213
handle_edge_irq+0x245/0xbf0 kernel/irq/chip.c:822
generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
handle_irq arch/x86/kernel/irq.c:231 [inline]
__common_interrupt+0xd7/0x1f0 arch/x86/kernel/irq.c:250
common_interrupt+0x9f/0xc0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:629
get_lock_parent_ip include/linux/ftrace.h:860 [inline]
preempt_latency_start kernel/sched/core.c:5471 [inline]
preempt_count_add+0x9d/0x180 kernel/sched/core.c:5496
unwind_next_frame+0xbb/0x1fa0 arch/x86/kernel/unwind_orc.c:433
arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
____kasan_kmalloc+0xba/0xf0 mm/kasan/common.c:513
kasan_kmalloc include/linux/kasan.h:264 [inline]
__kmalloc+0x168/0x300 mm/slub.c:4407
kmalloc include/linux/slab.h:596 [inline]
kzalloc include/linux/slab.h:721 [inline]
ext4_htree_store_dirent+0x7f/0x580 fs/ext4/dir.c:475
htree_dirblock_to_tree+0x930/0x10d0 fs/ext4/namei.c:1140
ext4_htree_fill_tree+0x73d/0x13f0 fs/ext4/namei.c:1219
ext4_dx_readdir fs/ext4/dir.c:598 [inline]
ext4_readdir+0x2edc/0x38e0 fs/ext4/dir.c:142
iterate_dir+0x224/0x570
__do_sys_getdents64 fs/readdir.c:369 [inline]
__se_sys_getdents64+0x209/0x4f0 fs/readdir.c:354
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
-> #2 (&tty->write_wait){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
__wake_up_common_lock kernel/sched/wait.c:137 [inline]
__wake_up+0xf5/0x1c0 kernel/sched/wait.c:157
tty_port_default_wakeup+0xa8/0x100 drivers/tty/tty_port.c:51
serial8250_tx_chars+0x60d/0x800 drivers/tty/serial/8250/8250_port.c:1828
serial8250_handle_irq+0x505/0x600 drivers/tty/serial/8250/8250_port.c:1924
serial8250_default_handle_irq+0xc8/0x1e0 drivers/tty/serial/8250/8250_port.c:1941
serial8250_interrupt+0xa1/0x1e0 drivers/tty/serial/8250/8250_core.c:127
__handle_irq_event_percpu+0x292/0xa70 kernel/irq/handle.c:156
handle_irq_event_percpu kernel/irq/handle.c:196 [inline]
handle_irq_event+0xff/0x2b0 kernel/irq/handle.c:213
handle_edge_irq+0x245/0xbf0 kernel/irq/chip.c:822
generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
handle_irq arch/x86/kernel/irq.c:231 [inline]
__common_interrupt+0xd7/0x1f0 arch/x86/kernel/irq.c:250
common_interrupt+0x9f/0xc0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:629
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
spin_unlock_irqrestore include/linux/spinlock.h:418 [inline]
uart_write+0x6af/0x930 drivers/tty/serial/serial_core.c:590
process_output_block drivers/tty/n_tty.c:592 [inline]
n_tty_write+0xd7e/0x1280 drivers/tty/n_tty.c:2339
do_tty_write drivers/tty/tty_io.c:1038 [inline]
file_tty_write+0x561/0x920 drivers/tty/tty_io.c:1110
call_write_iter include/linux/fs.h:2172 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0xacf/0xe50 fs/read_write.c:594
ksys_write+0x1a2/0x2c0 fs/read_write.c:647
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
-> #1 (&port_lock_key){-.-.}-{2:2}:
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
serial8250_console_write+0x19d/0x1180 drivers/tty/serial/8250/8250_port.c:3354
console_unlock+0xced/0x12b0 kernel/printk/printk.c:2744
vprintk_emit+0xbf/0x150 kernel/printk/printk.c:2274
_printk+0xd1/0x120 kernel/printk/printk.c:2299
register_console+0x65a/0x940 kernel/printk/printk.c:3107
univ8250_console_init+0x41/0x50 drivers/tty/serial/8250/8250_core.c:690
console_init+0x18c/0x660 kernel/printk/printk.c:3207
start_kernel+0x301/0x540 init/main.c:1076
secondary_startup_64_no_verify+0xb1/0xbb
-> #0 (console_owner){-...}-{0:0}:
check_prev_add kernel/locking/lockdep.c:3053 [inline]
check_prevs_add kernel/locking/lockdep.c:3172 [inline]
validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788
__lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
console_lock_spinning_enable+0x51/0x60 kernel/printk/printk.c:1805
console_unlock+0xa47/0x12b0 kernel/printk/printk.c:2741
vprintk_emit+0xbf/0x150 kernel/printk/printk.c:2274
_printk+0xd1/0x120 kernel/printk/printk.c:2299
report_bug+0x1e5/0x2e0 lib/bug.c:195
handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:239
exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:259
asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:566
copy_from_user_nofault+0x15c/0x1c0
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
bpf_prog_4841e6ad801ea8bb+0x35/0xd7c
bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
bpf_trace_run2+0x19e/0x340 kernel/trace/bpf_trace.c:1917
trace_hrtimer_start include/trace/events/timer.h:199 [inline]
debug_activate kernel/time/hrtimer.c:476 [inline]
enqueue_hrtimer+0x324/0x390 kernel/time/hrtimer.c:1084
__run_hrtimer kernel/time/hrtimer.c:1703 [inline]
__hrtimer_run_queues+0x6b6/0xcf0 kernel/time/hrtimer.c:1750
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
finish_lock_switch+0x91/0x100 kernel/sched/core.c:4785
finish_task_switch+0x134/0x630 kernel/sched/core.c:4902
context_switch kernel/sched/core.c:5033 [inline]
__schedule+0x12cc/0x45b0 kernel/sched/core.c:6376
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6780
irqentry_exit+0x53/0x80 kernel/entry/common.c:432
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
count_memcg_event_mm+0x301/0x3e0
handle_mm_fault+0x161/0x5950 mm/memory.c:4834
faultin_page mm/gup.c:976 [inline]
__get_user_pages+0x4ed/0x11d0 mm/gup.c:1197
__get_user_pages_locked mm/gup.c:1382 [inline]
get_user_pages_unlocked+0x23b/0x8a0 mm/gup.c:2222
__gup_longterm_unlocked mm/gup.c:2823 [inline]
internal_get_user_pages_fast+0x2306/0x2820 mm/gup.c:2911
iov_iter_get_pages+0x25a/0x570 lib/iov_iter.c:1544
__bio_iov_iter_get_pages block/bio.c:1136 [inline]
bio_iov_iter_get_pages+0x477/0x18e0 block/bio.c:1195
iomap_dio_bio_iter+0xab9/0x1540 fs/iomap/direct-io.c:321
__iomap_dio_rw+0xf9f/0x1f40 fs/iomap/direct-io.c:586
iomap_dio_rw+0x38/0x80 fs/iomap/direct-io.c:672
ext4_dio_write_iter fs/ext4/file.c:570 [inline]
ext4_file_write_iter+0x1779/0x1990 fs/ext4/file.c:681
call_write_iter include/linux/fs.h:2172 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0xacf/0xe50 fs/read_write.c:594
ksys_write+0x1a2/0x2c0 fs/read_write.c:647
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
other info that might help us debug this:
Chain exists of:
console_owner --> &rt_b->rt_runtime_lock --> hrtimer_bases.lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(hrtimer_bases.lock);
lock(&rt_b->rt_runtime_lock);
lock(hrtimer_bases.lock);
lock(console_owner);
*** DEADLOCK ***
8 locks held by syz-executor.1/3635:
#0: ffff888076164d70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x2cb/0x380 fs/file.c:1088
#1: ffff88814ae86460 (sb_writers#5){.+.+}-{0:0}, at: vfs_write+0x29a/0xe50 fs/read_write.c:590
#2: ffff88805e15a1d8 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
#2: ffff88805e15a1d8 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: ext4_dio_write_iter fs/ext4/file.c:508 [inline]
#2: ffff88805e15a1d8 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: ext4_file_write_iter+0x5c4/0x1990 fs/ext4/file.c:681
#3: ffff88807c1cd528 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
#3: ffff88807c1cd528 (&mm->mmap_lock){++++}-{3:3}, at: get_user_pages_unlocked+0x10c/0x8a0 mm/gup.c:2221
#4: ffffffff8c91fae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311
#5: ffff8880b9b2a218 (hrtimer_bases.lock){-.-.}-{2:2}, at: __run_hrtimer kernel/time/hrtimer.c:1690 [inline]
#5: ffff8880b9b2a218 (hrtimer_bases.lock){-.-.}-{2:2}, at: __hrtimer_run_queues+0x662/0xcf0 kernel/time/hrtimer.c:1750
#6: ffffffff8c91fae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311
#7: ffffffff8c7fc3a0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0xa6/0x150 kernel/printk/printk.c:2273
stack backtrace:
CPU: 1 PID: 3635 Comm: syz-executor.1 Not tainted 5.15.158-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
check_noncircular+0x2f8/0x3b0 kernel/locking/lockdep.c:2133
check_prev_add kernel/locking/lockdep.c:3053 [inline]
check_prevs_add kernel/locking/lockdep.c:3172 [inline]
validate_chain+0x1649/0x5930 kernel/locking/lockdep.c:3788
__lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623
console_lock_spinning_enable+0x51/0x60 kernel/printk/printk.c:1805
console_unlock+0xa47/0x12b0 kernel/printk/printk.c:2741
vprintk_emit+0xbf/0x150 kernel/printk/printk.c:2274
_printk+0xd1/0x120 kernel/printk/printk.c:2299
report_bug+0x1e5/0x2e0 lib/bug.c:195
handle_bug+0x3d/0x70 arch/x86/kernel/traps.c:239
exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:259
asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:566
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 7b c4 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 64 c4 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc90000dd0be8 EFLAGS: 00010046
RAX: ffffffff81aa985c RBX: 0000000000000000 RCX: ffff88807a10bb80
RDX: 0000000080010003 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aa976d R09: fffffbfff1f7ee19
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90000dd0c48
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
bpf_prog_4841e6ad801ea8bb+0x35/0xd7c
bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
bpf_trace_run2+0x19e/0x340 kernel/trace/bpf_trace.c:1917
trace_hrtimer_start include/trace/events/timer.h:199 [inline]
debug_activate kernel/time/hrtimer.c:476 [inline]
enqueue_hrtimer+0x324/0x390 kernel/time/hrtimer.c:1084
__run_hrtimer kernel/time/hrtimer.c:1703 [inline]
__hrtimer_run_queues+0x6b6/0xcf0 kernel/time/hrtimer.c:1750
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:finish_lock_switch+0x91/0x100 kernel/sched/core.c:4785
Code: 45 31 c9 68 b7 90 59 81 e8 cc 1a 09 00 48 83 c4 08 4c 89 ff e8 60 da fe ff 66 90 4c 89 ff e8 f6 ba cd 08 e8 d1 4b 2d 00 fb 5b <41> 5c 41 5d 41 5e 41 5f c3 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 87
RSP: 0018:ffffc9000116e718 EFLAGS: 00000282
RAX: e5b6dd99e902a300 RBX: ffff88807b4c1df4 RCX: ffffffff81631938
RDX: dffffc0000000000 RSI: ffffffff8a8b2980 RDI: ffffffff8ad8f600
RBP: ffffc9000116e790 R08: dffffc0000000000 R09: fffffbfff1f7ee1f
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff11017367613 R14: ffff8880b9b3b098 R15: ffff8880b9b3a340
finish_task_switch+0x134/0x630 kernel/sched/core.c:4902
context_switch kernel/sched/core.c:5033 [inline]
__schedule+0x12cc/0x45b0 kernel/sched/core.c:6376
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6780
irqentry_exit+0x53/0x80 kernel/entry/common.c:432
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:768 [inline]
RIP: 0010:count_memcg_event_mm+0x301/0x3e0 include/linux/memcontrol.h:1082
Code: 89 fe ff ff e8 80 3d c7 ff eb 1f e8 79 3d c7 ff e8 64 ae 64 08 4d 85 ed 74 89 e8 6a 3d c7 ff fb 49 bd 00 00 00 00 00 fc ff df ea b3 64 08 89 c3 31 ff 89 c6 e8 af 40 c7 ff 85 db 74 10 e8 d6
RSP: 0018:ffffc9000116eb00 EFLAGS: 00000287
RAX: ffffffff81b91f56 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc900035cb000 RSI: 000000000001ba8d RDI: 000000000001ba8e
RBP: ffffc9000116ebd0 R08: ffffffff81b91ecb R09: fffffbfff1f7ee1f
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807b1d0000
R13: dffffc0000000000 R14: 1ffff9200022dd64 R15: 0000000000000046
handle_mm_fault+0x161/0x5950 mm/memory.c:4834
faultin_page mm/gup.c:976 [inline]
__get_user_pages+0x4ed/0x11d0 mm/gup.c:1197
__get_user_pages_locked mm/gup.c:1382 [inline]
get_user_pages_unlocked+0x23b/0x8a0 mm/gup.c:2222
__gup_longterm_unlocked mm/gup.c:2823 [inline]
internal_get_user_pages_fast+0x2306/0x2820 mm/gup.c:2911
iov_iter_get_pages+0x25a/0x570 lib/iov_iter.c:1544
__bio_iov_iter_get_pages block/bio.c:1136 [inline]
bio_iov_iter_get_pages+0x477/0x18e0 block/bio.c:1195
iomap_dio_bio_iter+0xab9/0x1540 fs/iomap/direct-io.c:321
__iomap_dio_rw+0xf9f/0x1f40 fs/iomap/direct-io.c:586
iomap_dio_rw+0x38/0x80 fs/iomap/direct-io.c:672
ext4_dio_write_iter fs/ext4/file.c:570 [inline]
ext4_file_write_iter+0x1779/0x1990 fs/ext4/file.c:681
call_write_iter include/linux/fs.h:2172 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0xacf/0xe50 fs/read_write.c:594
ksys_write+0x1a2/0x2c0 fs/read_write.c:647
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f44ec1a9d69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f44ea71c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f44ec2d7f80 RCX: 00007f44ec1a9d69
RDX: 0000000000400000 RSI: 0000000020000000 RDI: 0000000000000008
RBP: 00007f44ec1f649e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f44ec2d7f80 R15: 00007ffdf8088e78
WARNING: CPU: 1 PID: 3635 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 1 PID: 3635 Comm: syz-executor.1 Not tainted 5.15.158-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 7b c4 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 64 c4 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc90000dd0be8 EFLAGS: 00010046
RAX: ffffffff81aa985c RBX: 0000000000000000 RCX: ffff88807a10bb80
RDX: 0000000080010003 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aa976d R09: fffffbfff1f7ee19
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90000dd0c48
FS: 00007f44ea71c6c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f621000 CR3: 0000000074d37000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
bpf_prog_4841e6ad801ea8bb+0x35/0xd7c
bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
bpf_trace_run2+0x19e/0x340 kernel/trace/bpf_trace.c:1917
trace_hrtimer_start include/trace/events/timer.h:199 [inline]
debug_activate kernel/time/hrtimer.c:476 [inline]
enqueue_hrtimer+0x324/0x390 kernel/time/hrtimer.c:1084
__run_hrtimer kernel/time/hrtimer.c:1703 [inline]
__hrtimer_run_queues+0x6b6/0xcf0 kernel/time/hrtimer.c:1750
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:finish_lock_switch+0x91/0x100 kernel/sched/core.c:4785
Code: 45 31 c9 68 b7 90 59 81 e8 cc 1a 09 00 48 83 c4 08 4c 89 ff e8 60 da fe ff 66 90 4c 89 ff e8 f6 ba cd 08 e8 d1 4b 2d 00 fb 5b <41> 5c 41 5d 41 5e 41 5f c3 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 87
RSP: 0018:ffffc9000116e718 EFLAGS: 00000282
RAX: e5b6dd99e902a300 RBX: ffff88807b4c1df4 RCX: ffffffff81631938
RDX: dffffc0000000000 RSI: ffffffff8a8b2980 RDI: ffffffff8ad8f600
RBP: ffffc9000116e790 R08: dffffc0000000000 R09: fffffbfff1f7ee1f
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff11017367613 R14: ffff8880b9b3b098 R15: ffff8880b9b3a340
finish_task_switch+0x134/0x630 kernel/sched/core.c:4902
context_switch kernel/sched/core.c:5033 [inline]
__schedule+0x12cc/0x45b0 kernel/sched/core.c:6376
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6780
irqentry_exit+0x53/0x80 kernel/entry/common.c:432
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:768 [inline]
RIP: 0010:count_memcg_event_mm+0x301/0x3e0 include/linux/memcontrol.h:1082
Code: 89 fe ff ff e8 80 3d c7 ff eb 1f e8 79 3d c7 ff e8 64 ae 64 08 4d 85 ed 74 89 e8 6a 3d c7 ff fb 49 bd 00 00 00 00 00 fc ff df ea b3 64 08 89 c3 31 ff 89 c6 e8 af 40 c7 ff 85 db 74 10 e8 d6
RSP: 0018:ffffc9000116eb00 EFLAGS: 00000287
RAX: ffffffff81b91f56 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc900035cb000 RSI: 000000000001ba8d RDI: 000000000001ba8e
RBP: ffffc9000116ebd0 R08: ffffffff81b91ecb R09: fffffbfff1f7ee1f
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807b1d0000
R13: dffffc0000000000 R14: 1ffff9200022dd64 R15: 0000000000000046
handle_mm_fault+0x161/0x5950 mm/memory.c:4834
faultin_page mm/gup.c:976 [inline]
__get_user_pages+0x4ed/0x11d0 mm/gup.c:1197
__get_user_pages_locked mm/gup.c:1382 [inline]
get_user_pages_unlocked+0x23b/0x8a0 mm/gup.c:2222
__gup_longterm_unlocked mm/gup.c:2823 [inline]
internal_get_user_pages_fast+0x2306/0x2820 mm/gup.c:2911
iov_iter_get_pages+0x25a/0x570 lib/iov_iter.c:1544
__bio_iov_iter_get_pages block/bio.c:1136 [inline]
bio_iov_iter_get_pages+0x477/0x18e0 block/bio.c:1195
iomap_dio_bio_iter+0xab9/0x1540 fs/iomap/direct-io.c:321
__iomap_dio_rw+0xf9f/0x1f40 fs/iomap/direct-io.c:586
iomap_dio_rw+0x38/0x80 fs/iomap/direct-io.c:672
ext4_dio_write_iter fs/ext4/file.c:570 [inline]
ext4_file_write_iter+0x1779/0x1990 fs/ext4/file.c:681
call_write_iter include/linux/fs.h:2172 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0xacf/0xe50 fs/read_write.c:594
ksys_write+0x1a2/0x2c0 fs/read_write.c:647
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f44ec1a9d69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f44ea71c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f44ec2d7f80 RCX: 00007f44ec1a9d69
RDX: 0000000000400000 RSI: 0000000020000000 RDI: 0000000000000008
RBP: 00007f44ec1f649e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f44ec2d7f80 R15: 00007ffdf8088e78
----------------
Code disassembly (best guess):
0: 45 31 c9 xor %r9d,%r9d
3: 68 b7 90 59 81 push $0xffffffff815990b7
8: e8 cc 1a 09 00 call 0x91ad9
d: 48 83 c4 08 add $0x8,%rsp
11: 4c 89 ff mov %r15,%rdi
14: e8 60 da fe ff call 0xfffeda79
19: 66 90 xchg %ax,%ax
1b: 4c 89 ff mov %r15,%rdi
1e: e8 f6 ba cd 08 call 0x8cdbb19
23: e8 d1 4b 2d 00 call 0x2d4bf9
28: fb sti
29: 5b pop %rbx
* 2a: 41 5c pop %r12 <-- trapping instruction
2c: 41 5d pop %r13
2e: 41 5e pop %r14
30: 41 5f pop %r15
32: c3 ret
33: 44 89 f1 mov %r14d,%ecx
36: 80 e1 07 and $0x7,%cl
39: 80 c1 03 add $0x3,%cl
3c: 38 c1 cmp %al,%cl
3e: 7c 87 jl 0xffffffc7