FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 1
======================================================
WARNING: possible circular locking dependency detected
6.12.0-rc5-syzkaller-00299-g11066801dd4b #0 Not tainted
------------------------------------------------------
syz.1.40/6068 is trying to acquire lock:
ffffffff8e0c5600 (console_owner){..-.}-{0:0}, at: console_lock_spinning_enable+0x9f/0xd0 kernel/printk/printk.c:1905
but task is already holding lock:
ffff8880b863ee98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:606 [inline]
ffff8880b863ee98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:591
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+0x29/0x130 kernel/sched/core.c:598
raw_spin_rq_lock kernel/sched/sched.h:1505 [inline]
task_rq_lock+0xcf/0x3b0 kernel/sched/core.c:700
cgroup_move_task+0x82/0x250 kernel/sched/psi.c:1161
css_set_move_task+0x288/0x5f0 kernel/cgroup/cgroup.c:898
cgroup_post_fork+0x1c6/0x910 kernel/cgroup/cgroup.c:6692
copy_process+0x51a5/0x8cb0 kernel/fork.c:2598
kernel_clone+0xfd/0x960 kernel/fork.c:2784
user_mode_thread+0xb4/0xf0 kernel/fork.c:2862
rest_init+0x23/0x2b0 init/main.c:712
start_kernel+0x3e4/0x4d0 init/main.c:1105
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:507
x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:488
common_startup_64+0x13e/0x148
-> #3 (&p->pi_lock){-.-.}-{2:2}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:551 [inline]
try_to_wake_up+0xa1/0x14f0 kernel/sched/core.c:4165
__wake_up_common+0x131/0x1e0 kernel/sched/wait.c:89
__wake_up_common_lock kernel/sched/wait.c:106 [inline]
__wake_up+0x31/0x60 kernel/sched/wait.c:127
tty_port_default_wakeup+0x2a/0x40 drivers/tty/tty_port.c:69
serial8250_tx_chars+0x68e/0x860 drivers/tty/serial/8250/8250_port.c:1821
serial8250_handle_irq+0x74d/0xc80 drivers/tty/serial/8250/8250_port.c:1929
serial8250_default_handle_irq+0x9a/0x210 drivers/tty/serial/8250/8250_port.c:1949
serial8250_interrupt+0x103/0x210 drivers/tty/serial/8250/8250_core.c:86
__handle_irq_event_percpu+0x229/0x7c0 kernel/irq/handle.c:158
handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
handle_irq_event+0xab/0x1e0 kernel/irq/handle.c:210
handle_edge_irq+0x263/0xd10 kernel/irq/chip.c:831
generic_handle_irq_desc include/linux/irqdesc.h:173 [inline]
handle_irq arch/x86/kernel/irq.c:247 [inline]
call_irq_handler arch/x86/kernel/irq.c:259 [inline]
__common_interrupt+0xdf/0x250 arch/x86/kernel/irq.c:285
common_interrupt+0xba/0xe0 arch/x86/kernel/irq.c:278
asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline]
acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:111
acpi_idle_enter+0xc5/0x160 drivers/acpi/processor_idle.c:702
cpuidle_enter_state+0xaa/0x4f0 drivers/cpuidle/cpuidle.c:264
cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:385
cpuidle_idle_call kernel/sched/idle.c:230 [inline]
do_idle+0x313/0x3f0 kernel/sched/idle.c:326
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:424
start_secondary+0x222/0x2b0 arch/x86/kernel/smpboot.c:314
common_startup_64+0x13e/0x148
-> #2 (&tty->write_wait){-.-.}-{2:2}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
__wake_up_common_lock kernel/sched/wait.c:105 [inline]
__wake_up+0x1c/0x60 kernel/sched/wait.c:127
tty_port_default_wakeup+0x2a/0x40 drivers/tty/tty_port.c:69
serial8250_tx_chars+0x68e/0x860 drivers/tty/serial/8250/8250_port.c:1821
serial8250_handle_irq+0x74d/0xc80 drivers/tty/serial/8250/8250_port.c:1929
serial8250_default_handle_irq+0x9a/0x210 drivers/tty/serial/8250/8250_port.c:1949
serial8250_interrupt+0x103/0x210 drivers/tty/serial/8250/8250_core.c:86
__handle_irq_event_percpu+0x229/0x7c0 kernel/irq/handle.c:158
handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
handle_irq_event+0xab/0x1e0 kernel/irq/handle.c:210
handle_edge_irq+0x263/0xd10 kernel/irq/chip.c:831
generic_handle_irq_desc include/linux/irqdesc.h:173 [inline]
handle_irq arch/x86/kernel/irq.c:247 [inline]
call_irq_handler arch/x86/kernel/irq.c:259 [inline]
__common_interrupt+0xdf/0x250 arch/x86/kernel/irq.c:285
common_interrupt+0xba/0xe0 arch/x86/kernel/irq.c:278
asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline]
acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:111
acpi_idle_enter+0xc5/0x160 drivers/acpi/processor_idle.c:702
cpuidle_enter_state+0xaa/0x4f0 drivers/cpuidle/cpuidle.c:264
cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:385
cpuidle_idle_call kernel/sched/idle.c:230 [inline]
do_idle+0x313/0x3f0 kernel/sched/idle.c:326
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:424
start_secondary+0x222/0x2b0 arch/x86/kernel/smpboot.c:314
common_startup_64+0x13e/0x148
-> #1 (&port_lock_key){-.-.}-{2:2}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
uart_port_lock_irqsave include/linux/serial_core.h:711 [inline]
serial8250_console_write+0xb56/0x17c0 drivers/tty/serial/8250/8250_port.c:3352
console_emit_next_record kernel/printk/printk.c:3092 [inline]
console_flush_all+0x803/0xc60 kernel/printk/printk.c:3180
__console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
console_unlock+0xd9/0x210 kernel/printk/printk.c:3279
vprintk_emit+0x424/0x6f0 kernel/printk/printk.c:2407
vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:68
_printk+0xc8/0x100 kernel/printk/printk.c:2432
register_console+0xbfd/0x1170 kernel/printk/printk.c:4069
univ8250_console_init+0x5f/0x90 drivers/tty/serial/8250/8250_core.c:513
console_init+0xcc/0x680 kernel/printk/printk.c:4262
start_kernel+0x29a/0x4d0 init/main.c:1040
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:507
x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:488
common_startup_64+0x13e/0x148
-> #0 (console_owner){..-.}-{0:0}:
check_prev_add kernel/locking/lockdep.c:3161 [inline]
check_prevs_add kernel/locking/lockdep.c:3280 [inline]
validate_chain kernel/locking/lockdep.c:3904 [inline]
__lock_acquire+0x250b/0x3ce0 kernel/locking/lockdep.c:5202
lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5825
console_lock_spinning_enable+0xb0/0xd0 kernel/printk/printk.c:1905
console_emit_next_record kernel/printk/printk.c:3086 [inline]
console_flush_all+0x7ac/0xc60 kernel/printk/printk.c:3180
__console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
console_unlock+0xd9/0x210 kernel/printk/printk.c:3279
vprintk_emit+0x424/0x6f0 kernel/printk/printk.c:2407
vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:68
_printk+0xc8/0x100 kernel/printk/printk.c:2432
fail_dump lib/fault-inject.c:46 [inline]
should_fail_ex+0x46c/0x5b0 lib/fault-inject.c:154
strncpy_from_user+0x3b/0x2c0 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x7f/0x180 mm/maccess.c:186
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:215 [inline]
____bpf_probe_read_user_str kernel/trace/bpf_trace.c:224 [inline]
bpf_probe_read_user_str+0x26/0x70 kernel/trace/bpf_trace.c:221
bpf_prog_bc7c5c6b9645592f+0x3e/0x40
bpf_dispatcher_nop_func include/linux/bpf.h:1265 [inline]
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run include/linux/filter.h:708 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2316 [inline]
bpf_trace_run4+0x245/0x5a0 kernel/trace/bpf_trace.c:2359
__bpf_trace_sched_switch+0x13e/0x190 include/trace/events/sched.h:222
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x19b0/0x5730 kernel/sched/core.c:6687
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7012
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_call_function_single+0x1a/0x20 arch/x86/include/asm/idtentry.h:709
avtab_search_node+0x1f0/0x4b0 security/selinux/ss/avtab.c:188
context_struct_compute_av+0x63c/0x1270 security/selinux/ss/services.c:654
security_compute_av+0x48f/0xfd0 security/selinux/ss/services.c:1140
avc_compute_av+0x86/0x5c0 security/selinux/avc.c:986
avc_perm_nonode+0xaa/0x170 security/selinux/avc.c:1110
avc_has_perm_noaudit+0x2d2/0x3a0 security/selinux/avc.c:1153
selinux_inode_permission+0x361/0x590 security/selinux/hooks.c:3118
security_inode_permission+0xda/0x260 security/security.c:2320
inode_permission fs/namei.c:543 [inline]
inode_permission+0x17a/0x5f0 fs/namei.c:510
may_lookup fs/namei.c:1760 [inline]
link_path_walk.part.0.constprop.0+0x1d7/0xd40 fs/namei.c:2366
link_path_walk fs/namei.c:2350 [inline]
path_openat+0x228/0x2d60 fs/namei.c:3929
do_filp_open+0x1dc/0x430 fs/namei.c:3960
do_sys_openat2+0x17a/0x1e0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 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 ***
6 locks held by syz.1.40/6068:
#0: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: path_init+0x6f0/0x1aa0 fs/namei.c:2451
#1: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#1: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#1: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: security_compute_av+0x4e/0xfd0 security/selinux/ss/services.c:1106
#2: ffff8880b863ee98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:606 [inline]
#2: ffff8880b863ee98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:591
#3: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#3: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#3: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2315 [inline]
#3: ffffffff8e1b8340 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x1d6/0x5a0 kernel/trace/bpf_trace.c:2359
#4: ffffffff8e1a5a40 (console_lock){+.+.}-{0:0}, at: vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:68
#5: ffffffff8e1a5ab0 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:342 [inline]
#5: ffffffff8e1a5ab0 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:267 [inline]
#5: ffffffff8e1a5ab0 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:288 [inline]
#5: ffffffff8e1a5ab0 (console_srcu){....}-{0:0}, at: console_flush_all+0x159/0xc60 kernel/printk/printk.c:3157
stack backtrace:
CPU: 0 UID: 0 PID: 6068 Comm: syz.1.40 Not tainted 6.12.0-rc5-syzkaller-00299-g11066801dd4b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_circular_bug+0x41c/0x610 kernel/locking/lockdep.c:2074
check_noncircular+0x31a/0x400 kernel/locking/lockdep.c:2206
check_prev_add kernel/locking/lockdep.c:3161 [inline]
check_prevs_add kernel/locking/lockdep.c:3280 [inline]
validate_chain kernel/locking/lockdep.c:3904 [inline]
__lock_acquire+0x250b/0x3ce0 kernel/locking/lockdep.c:5202
lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5825
console_lock_spinning_enable+0xb0/0xd0 kernel/printk/printk.c:1905
console_emit_next_record kernel/printk/printk.c:3086 [inline]
console_flush_all+0x7ac/0xc60 kernel/printk/printk.c:3180
__console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
console_unlock+0xd9/0x210 kernel/printk/printk.c:3279
vprintk_emit+0x424/0x6f0 kernel/printk/printk.c:2407
vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:68
_printk+0xc8/0x100 kernel/printk/printk.c:2432
fail_dump lib/fault-inject.c:46 [inline]
should_fail_ex+0x46c/0x5b0 lib/fault-inject.c:154
strncpy_from_user+0x3b/0x2c0 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x7f/0x180 mm/maccess.c:186
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:215 [inline]
____bpf_probe_read_user_str kernel/trace/bpf_trace.c:224 [inline]
bpf_probe_read_user_str+0x26/0x70 kernel/trace/bpf_trace.c:221
bpf_prog_bc7c5c6b9645592f+0x3e/0x40
bpf_dispatcher_nop_func include/linux/bpf.h:1265 [inline]
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run include/linux/filter.h:708 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2316 [inline]
bpf_trace_run4+0x245/0x5a0 kernel/trace/bpf_trace.c:2359
__bpf_trace_sched_switch+0x13e/0x190 include/trace/events/sched.h:222
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x19b0/0x5730 kernel/sched/core.c:6687
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7012
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_call_function_single+0x1a/0x20 arch/x86/include/asm/idtentry.h:709
RIP: 0010:avtab_search_node+0x1f0/0x4b0 security/selinux/ss/avtab.c:188
Code: 85 ac 02 00 00 48 8b 13 48 8d 1c c2 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 80 3c 02 00 0f 85 9d 02 00 00 48 8b 1b <48> 85 db 0f 84 9d 01 00 00 e8 d2 e9 42 fd 48 8d 7d 06 48 b8 00 00
RSP: 0018:ffffc900051bf570 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffff888027d5aaa0 RCX: 1ffff11006c58b26
RDX: 1ffff110060fff74 RSI: ffffffff844a9125 RDI: ffffc900051bf6a4
RBP: ffffc900051bf6a0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000800 R11: 0000000000000000 R12: 0000000000000069
R13: 00000000000007ff R14: 000000000000004f R15: 0000000000000007
context_struct_compute_av+0x63c/0x1270 security/selinux/ss/services.c:654
security_compute_av+0x48f/0xfd0 security/selinux/ss/services.c:1140
avc_compute_av+0x86/0x5c0 security/selinux/avc.c:986
avc_perm_nonode+0xaa/0x170 security/selinux/avc.c:1110
avc_has_perm_noaudit+0x2d2/0x3a0 security/selinux/avc.c:1153
selinux_inode_permission+0x361/0x590 security/selinux/hooks.c:3118
security_inode_permission+0xda/0x260 security/security.c:2320
inode_permission fs/namei.c:543 [inline]
inode_permission+0x17a/0x5f0 fs/namei.c:510
may_lookup fs/namei.c:1760 [inline]
link_path_walk.part.0.constprop.0+0x1d7/0xd40 fs/namei.c:2366
link_path_walk fs/namei.c:2350 [inline]
path_openat+0x228/0x2d60 fs/namei.c:3929
do_filp_open+0x1dc/0x430 fs/namei.c:3960
do_sys_openat2+0x17a/0x1e0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efeeb17e719
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:00007efeeabde038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007efeeb336058 RCX: 00007efeeb17e719
RDX: 0000000000000000 RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00007efeeabde090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007efeeb336058 R15: 00007ffee34bbe98
CPU: 0 UID: 0 PID: 6068 Comm: syz.1.40 Not tainted 6.12.0-rc5-syzkaller-00299-g11066801dd4b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
fail_dump lib/fault-inject.c:53 [inline]
should_fail_ex+0x497/0x5b0 lib/fault-inject.c:154
strncpy_from_user+0x3b/0x2c0 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x7f/0x180 mm/maccess.c:186
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:215 [inline]
____bpf_probe_read_user_str kernel/trace/bpf_trace.c:224 [inline]
bpf_probe_read_user_str+0x26/0x70 kernel/trace/bpf_trace.c:221
bpf_prog_bc7c5c6b9645592f+0x3e/0x40
bpf_dispatcher_nop_func include/linux/bpf.h:1265 [inline]
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run include/linux/filter.h:708 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2316 [inline]
bpf_trace_run4+0x245/0x5a0 kernel/trace/bpf_trace.c:2359
__bpf_trace_sched_switch+0x13e/0x190 include/trace/events/sched.h:222
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x19b0/0x5730 kernel/sched/core.c:6687
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7012
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_call_function_single+0x1a/0x20 arch/x86/include/asm/idtentry.h:709
RIP: 0010:avtab_search_node+0x1f0/0x4b0 security/selinux/ss/avtab.c:188
Code: 85 ac 02 00 00 48 8b 13 48 8d 1c c2 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 80 3c 02 00 0f 85 9d 02 00 00 48 8b 1b <48> 85 db 0f 84 9d 01 00 00 e8 d2 e9 42 fd 48 8d 7d 06 48 b8 00 00
RSP: 0018:ffffc900051bf570 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffff888027d5aaa0 RCX: 1ffff11006c58b26
RDX: 1ffff110060fff74 RSI: ffffffff844a9125 RDI: ffffc900051bf6a4
RBP: ffffc900051bf6a0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000800 R11: 0000000000000000 R12: 0000000000000069
R13: 00000000000007ff R14: 000000000000004f R15: 0000000000000007
context_struct_compute_av+0x63c/0x1270 security/selinux/ss/services.c:654
security_compute_av+0x48f/0xfd0 security/selinux/ss/services.c:1140
avc_compute_av+0x86/0x5c0 security/selinux/avc.c:986
avc_perm_nonode+0xaa/0x170 security/selinux/avc.c:1110
avc_has_perm_noaudit+0x2d2/0x3a0 security/selinux/avc.c:1153
selinux_inode_permission+0x361/0x590 security/selinux/hooks.c:3118
security_inode_permission+0xda/0x260 security/security.c:2320
inode_permission fs/namei.c:543 [inline]
inode_permission+0x17a/0x5f0 fs/namei.c:510
may_lookup fs/namei.c:1760 [inline]
link_path_walk.part.0.constprop.0+0x1d7/0xd40 fs/namei.c:2366
link_path_walk fs/namei.c:2350 [inline]
path_openat+0x228/0x2d60 fs/namei.c:3929
do_filp_open+0x1dc/0x430 fs/namei.c:3960
do_sys_openat2+0x17a/0x1e0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efeeb17e719
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:00007efeeabde038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007efeeb336058 RCX: 00007efeeb17e719
RDX: 0000000000000000 RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00007efeeabde090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007efeeb336058 R15: 00007ffee34bbe98
----------------
Code disassembly (best guess):
0: 85 ac 02 00 00 48 8b test %ebp,-0x74b80000(%rdx,%rax,1)
7: 13 48 8d adc -0x73(%rax),%ecx
a: 1c c2 sbb $0xc2,%al
c: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
13: fc ff df
16: 48 89 da mov %rbx,%rdx
19: 48 c1 ea 03 shr $0x3,%rdx
1d: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
21: 0f 85 9d 02 00 00 jne 0x2c4
27: 48 8b 1b mov (%rbx),%rbx
* 2a: 48 85 db test %rbx,%rbx <-- trapping instruction
2d: 0f 84 9d 01 00 00 je 0x1d0
33: e8 d2 e9 42 fd call 0xfd42ea0a
38: 48 8d 7d 06 lea 0x6(%rbp),%rdi
3c: 48 rex.W
3d: b8 .byte 0xb8