hfsplus: xattr searching failed
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
======================================================
WARNING: possible circular locking dependency detected
6.1.122-syzkaller #0 Tainted: G W
------------------------------------------------------
syz.3.1229/8838 is trying to acquire lock:
ffffffff8d207278 ((console_sem).lock){-.-.}-{2:2}, at: down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:139
but task is already holding lock:
ffff8880b8e3a9d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&rq->__lock){-.-.}-{2:2}:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
_raw_spin_lock_nested+0x2d/0x40 kernel/locking/spinlock.c:378
raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537
raw_spin_rq_lock kernel/sched/sched.h:1355 [inline]
rq_lock kernel/sched/sched.h:1645 [inline]
task_fork_fair+0x5d/0x350 kernel/sched/fair.c:11877
sched_cgroup_fork+0x374/0x400 kernel/sched/core.c:4682
copy_process+0x2442/0x4060 kernel/fork.c:2383
kernel_clone+0x222/0x920 kernel/fork.c:2681
user_mode_thread+0x12e/0x190 kernel/fork.c:2757
rest_init+0x23/0x300 init/main.c:698
start_kernel+0x0/0x53f init/main.c:893
start_kernel+0x496/0x53f init/main.c:1140
secondary_startup_64_no_verify+0xcf/0xdb
-> #1 (&p->pi_lock){-.-.}-{2:2}:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
__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+0xad/0x12e0 kernel/sched/core.c:4108
up+0x6e/0x90 kernel/locking/semaphore.c:191
__up_console_sem+0x11a/0x1e0 kernel/printk/printk.c:260
__console_unlock kernel/printk/printk.c:2697 [inline]
console_unlock+0x591/0x7c0 kernel/printk/printk.c:2908
vprintk_emit+0x523/0x740 kernel/printk/printk.c:2303
dev_vprintk_emit+0x2aa/0x323 drivers/base/core.c:4932
dev_printk_emit+0xd9/0x118 drivers/base/core.c:4943
_dev_warn+0x11e/0x165 drivers/base/core.c:4999
usb_set_configuration+0x1e3b/0x2020 drivers/usb/core/message.c:1980
usb_generic_driver_probe+0x84/0x140 drivers/usb/core/generic.c:238
usb_probe_device+0x130/0x260 drivers/usb/core/driver.c:293
really_probe+0x2ab/0xcb0 drivers/base/dd.c:639
__driver_probe_device+0x1a2/0x3d0 drivers/base/dd.c:785
driver_probe_device+0x50/0x420 drivers/base/dd.c:815
__device_attach_driver+0x2cf/0x510 drivers/base/dd.c:943
bus_for_each_drv+0x183/0x200 drivers/base/bus.c:429
__device_attach+0x359/0x570 drivers/base/dd.c:1015
bus_probe_device+0xba/0x1e0 drivers/base/bus.c:489
device_add+0xb48/0xfd0 drivers/base/core.c:3696
usb_new_device+0xbdd/0x18f0 drivers/usb/core/hub.c:2620
hub_port_connect drivers/usb/core/hub.c:5477 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5617 [inline]
port_event drivers/usb/core/hub.c:5773 [inline]
hub_event+0x2efe/0x5730 drivers/usb/core/hub.c:5855
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
-> #0 ((console_sem).lock){-.-.}-{2:2}:
check_prev_add kernel/locking/lockdep.c:3090 [inline]
check_prevs_add kernel/locking/lockdep.c:3209 [inline]
validate_chain+0x1661/0x5950 kernel/locking/lockdep.c:3825
__lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:139
__down_trylock_console_sem+0x105/0x250 kernel/printk/printk.c:243
console_trylock kernel/printk/printk.c:2650 [inline]
console_trylock_spinning kernel/printk/printk.c:1896 [inline]
vprintk_emit+0x1ee/0x740 kernel/printk/printk.c:2302
_printk+0xd1/0x111 kernel/printk/printk.c:2328
fail_dump lib/fault-inject.c:45 [inline]
should_fail_ex+0x387/0x4d0 lib/fault-inject.c:147
strncpy_from_user+0x32/0x360 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x6c/0x130 mm/maccess.c:186
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:204 [inline]
____bpf_probe_read_user_str kernel/trace/bpf_trace.c:213 [inline]
bpf_probe_read_user_str+0x26/0x70 kernel/trace/bpf_trace.c:210
bpf_prog_bc7c5c6b9645592f+0x35/0x37
bpf_dispatcher_nop_func include/linux/bpf.h:992 [inline]
__bpf_prog_run include/linux/filter.h:603 [inline]
bpf_prog_run include/linux/filter.h:610 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2284 [inline]
bpf_trace_run4+0x253/0x470 kernel/trace/bpf_trace.c:2325
__traceiter_sched_switch+0x91/0xc0 include/trace/events/sched.h:222
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x2128/0x4570 kernel/sched/core.c:6555
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
irqentry_exit+0x53/0x80 kernel/entry/common.c:439
asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:696
get_current arch/x86/include/asm/current.h:15 [inline]
__syscall_enter_from_user_work kernel/entry/common.c:97 [inline]
syscall_enter_from_user_mode+0x37/0x230 kernel/entry/common.c:118
do_syscall_64+0x1e/0xb0 arch/x86/entry/common.c:77
entry_SYSCALL_64_after_hwframe+0x68/0xd2
other info that might help us debug this:
Chain exists of:
(console_sem).lock --> &p->pi_lock --> &rq->__lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&rq->__lock);
lock(&p->pi_lock);
lock(&rq->__lock);
lock((console_sem).lock);
*** DEADLOCK ***
2 locks held by syz.3.1229/8838:
#0: ffff8880b8e3a9d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537
#1: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
#1: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
#1: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2283 [inline]
#1: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x16a/0x470 kernel/trace/bpf_trace.c:2325
stack backtrace:
CPU: 0 PID: 8838 Comm: syz.3.1229 Tainted: G W 6.1.122-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
check_noncircular+0x2fa/0x3b0 kernel/locking/lockdep.c:2170
check_prev_add kernel/locking/lockdep.c:3090 [inline]
check_prevs_add kernel/locking/lockdep.c:3209 [inline]
validate_chain+0x1661/0x5950 kernel/locking/lockdep.c:3825
__lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5049
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
down_trylock+0x1c/0xa0 kernel/locking/semaphore.c:139
__down_trylock_console_sem+0x105/0x250 kernel/printk/printk.c:243
console_trylock kernel/printk/printk.c:2650 [inline]
console_trylock_spinning kernel/printk/printk.c:1896 [inline]
vprintk_emit+0x1ee/0x740 kernel/printk/printk.c:2302
_printk+0xd1/0x111 kernel/printk/printk.c:2328
fail_dump lib/fault-inject.c:45 [inline]
should_fail_ex+0x387/0x4d0 lib/fault-inject.c:147
strncpy_from_user+0x32/0x360 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x6c/0x130 mm/maccess.c:186
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:204 [inline]
____bpf_probe_read_user_str kernel/trace/bpf_trace.c:213 [inline]
bpf_probe_read_user_str+0x26/0x70 kernel/trace/bpf_trace.c:210
bpf_prog_bc7c5c6b9645592f+0x35/0x37
bpf_dispatcher_nop_func include/linux/bpf.h:992 [inline]
__bpf_prog_run include/linux/filter.h:603 [inline]
bpf_prog_run include/linux/filter.h:610 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2284 [inline]
bpf_trace_run4+0x253/0x470 kernel/trace/bpf_trace.c:2325
__traceiter_sched_switch+0x91/0xc0 include/trace/events/sched.h:222
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x2128/0x4570 kernel/sched/core.c:6555
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
irqentry_exit+0x53/0x80 kernel/entry/common.c:439
asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:696
RIP: 0010:__syscall_enter_from_user_work kernel/entry/common.c:97 [inline]
RIP: 0010:syscall_enter_from_user_mode+0x37/0x230 kernel/entry/common.c:118
Code: 49 89 fe 48 8b 7c 24 30 e8 f6 fa ff ff 0f 1f 44 00 00 0f 1f 44 00 00 e8 67 f3 de f6 e8 e2 f1 de f6 fb 65 4c 8b 3d 29 04 50 75 <49> 8b 5f 08 f6 c3 3f 0f 84 ad 00 00 00 f6 c3 20 74 17 4c 89 f7 e8
RSP: 0018:ffffc900048f7ef8 EFLAGS: 00000282
RAX: 65ee8250e5b02900 RBX: ffffc900048f7f30 RCX: ffffffff97355103
RDX: dffffc0000000000 RSI: ffffffff8b0c0340 RDI: ffffffff8b5e67c0
RBP: ffffc900048f7f48 R08: dffffc0000000000 R09: fffffbfff1d360d6
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000103 R14: ffffc900048f7f58 R15: ffff888065ad8000
do_syscall_64+0x1e/0xb0 arch/x86/entry/common.c:77
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f36a7585d29
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:00007f36a73ff038 EFLAGS: 00000246 ORIG_RAX: 0000000000000103
RAX: ffffffffffffffda RBX: 00007f36a7776160 RCX: 00007f36a7585d29
RDX: 0000000000001408 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f36a73ff090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000103 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f36a7776160 R15: 00007ffcbd640708
CPU: 0 PID: 8838 Comm: syz.3.1229 Tainted: G W 6.1.122-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
fail_dump lib/fault-inject.c:52 [inline]
should_fail_ex+0x3a6/0x4d0 lib/fault-inject.c:147
strncpy_from_user+0x32/0x360 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x6c/0x130 mm/maccess.c:186
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:204 [inline]
____bpf_probe_read_user_str kernel/trace/bpf_trace.c:213 [inline]
bpf_probe_read_user_str+0x26/0x70 kernel/trace/bpf_trace.c:210
bpf_prog_bc7c5c6b9645592f+0x35/0x37
bpf_dispatcher_nop_func include/linux/bpf.h:992 [inline]
__bpf_prog_run include/linux/filter.h:603 [inline]
bpf_prog_run include/linux/filter.h:610 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2284 [inline]
bpf_trace_run4+0x253/0x470 kernel/trace/bpf_trace.c:2325
__traceiter_sched_switch+0x91/0xc0 include/trace/events/sched.h:222
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x2128/0x4570 kernel/sched/core.c:6555
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
irqentry_exit+0x53/0x80 kernel/entry/common.c:439
asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:696
RIP: 0010:__syscall_enter_from_user_work kernel/entry/common.c:97 [inline]
RIP: 0010:syscall_enter_from_user_mode+0x37/0x230 kernel/entry/common.c:118
Code: 49 89 fe 48 8b 7c 24 30 e8 f6 fa ff ff 0f 1f 44 00 00 0f 1f 44 00 00 e8 67 f3 de f6 e8 e2 f1 de f6 fb 65 4c 8b 3d 29 04 50 75 <49> 8b 5f 08 f6 c3 3f 0f 84 ad 00 00 00 f6 c3 20 74 17 4c 89 f7 e8
RSP: 0018:ffffc900048f7ef8 EFLAGS: 00000282
RAX: 65ee8250e5b02900 RBX: ffffc900048f7f30 RCX: ffffffff97355103
RDX: dffffc0000000000 RSI: ffffffff8b0c0340 RDI: ffffffff8b5e67c0
RBP: ffffc900048f7f48 R08: dffffc0000000000 R09: fffffbfff1d360d6
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000103 R14: ffffc900048f7f58 R15: ffff888065ad8000
do_syscall_64+0x1e/0xb0 arch/x86/entry/common.c:77
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f36a7585d29
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:00007f36a73ff038 EFLAGS: 00000246 ORIG_RAX: 0000000000000103
RAX: ffffffffffffffda RBX: 00007f36a7776160 RCX: 00007f36a7585d29
RDX: 0000000000001408 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f36a73ff090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000103 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f36a7776160 R15: 00007ffcbd640708
----------------
Code disassembly (best guess):
0: 49 89 fe mov %rdi,%r14
3: 48 8b 7c 24 30 mov 0x30(%rsp),%rdi
8: e8 f6 fa ff ff call 0xfffffb03
d: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
12: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
17: e8 67 f3 de f6 call 0xf6def383
1c: e8 e2 f1 de f6 call 0xf6def203
21: fb sti
22: 65 4c 8b 3d 29 04 50 mov %gs:0x75500429(%rip),%r15 # 0x75500453
29: 75
* 2a: 49 8b 5f 08 mov 0x8(%r15),%rbx <-- trapping instruction
2e: f6 c3 3f test $0x3f,%bl
31: 0f 84 ad 00 00 00 je 0xe4
37: f6 c3 20 test $0x20,%bl
3a: 74 17 je 0x53
3c: 4c 89 f7 mov %r14,%rdi
3f: e8 .byte 0xe8