FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
======================================================
WARNING: possible circular locking dependency detected
6.1.130-syzkaller #0 Not tainted
------------------------------------------------------
syz.3.865/6899 is trying to acquire lock:
ffffffff8d322840 (console_owner){-...}-{0:0}, at: console_lock_spinning_enable kernel/printk/printk.c:1818 [inline]
ffffffff8d322840 (console_owner){-...}-{0:0}, at: console_emit_next_record+0x74f/0xc30 kernel/printk/printk.c:2774
but task is already holding lock:
ffff8880b8f3a9d8 (&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:
-> #4 (&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:11886
sched_cgroup_fork+0x374/0x400 kernel/sched/core.c:4684
copy_process+0x2482/0x40a0 kernel/fork.c:2383
kernel_clone+0x222/0x920 kernel/fork.c:2681
user_mode_thread+0x140/0x1b0 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
-> #3 (&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/0x1250 kernel/sched/core.c:4110
__wake_up_common+0x2a0/0x4e0 kernel/sched/wait.c:107
__wake_up_common_lock kernel/sched/wait.c:138 [inline]
__wake_up+0x11a/0x1c0 kernel/sched/wait.c:160
tty_port_default_wakeup+0xa2/0xf0 drivers/tty/tty_port.c:71
serial8250_tx_chars+0x60d/0x800 drivers/tty/serial/8250/8250_port.c:1854
serial8250_handle_irq+0x4ff/0x6a0 drivers/tty/serial/8250/8250_port.c:1961
serial8250_default_handle_irq+0xc8/0x1e0 drivers/tty/serial/8250/8250_port.c:1981
serial8250_interrupt+0xa1/0x1e0 drivers/tty/serial/8250/8250_core.c:126
__handle_irq_event_percpu+0x2a8/0xb20 kernel/irq/handle.c:158
handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
handle_irq_event+0x85/0x1e0 kernel/irq/handle.c:210
handle_edge_irq+0x245/0xbf0 kernel/irq/chip.c:819
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+0xae/0xd0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:682
preempt_count_sub+0xee/0x160 kernel/sched/core.c:5736
unwind_next_frame+0x1a3f/0x2220 arch/x86/kernel/unwind_orc.c:629
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:45 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
__kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737
slab_alloc_node mm/slub.c:3398 [inline]
slab_alloc mm/slub.c:3406 [inline]
__kmem_cache_alloc_lru mm/slub.c:3413 [inline]
kmem_cache_alloc+0x10c/0x2d0 mm/slub.c:3422
mt_alloc_one lib/maple_tree.c:152 [inline]
mas_alloc_nodes+0x276/0x800 lib/maple_tree.c:1277
mas_node_count_gfp lib/maple_tree.c:1359 [inline]
mas_preallocate+0x12d/0x350 lib/maple_tree.c:5805
__vma_adjust+0x8df/0x1f40 mm/mmap.c:723
__split_vma+0x36c/0x4c0
do_mas_align_munmap+0x95f/0x15a0 mm/mmap.c:2489
do_mas_munmap+0x246/0x2b0 mm/mmap.c:2638
__mmap_region mm/mmap.c:2686 [inline]
mmap_region+0x8d4/0x2660 mm/mmap.c:2904
do_mmap+0x8c5/0xf60 mm/mmap.c:1424
vm_mmap_pgoff+0x1ca/0x2d0 mm/util.c:520
ksys_mmap_pgoff+0x4f5/0x6d0 mm/mmap.c:1470
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
-> #2 (&tty->write_wait){-.-.}-{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
__wake_up_common_lock kernel/sched/wait.c:137 [inline]
__wake_up+0xfd/0x1c0 kernel/sched/wait.c:160
tty_port_default_wakeup+0xa2/0xf0 drivers/tty/tty_port.c:71
serial8250_tx_chars+0x60d/0x800 drivers/tty/serial/8250/8250_port.c:1854
serial8250_handle_irq+0x4ff/0x6a0 drivers/tty/serial/8250/8250_port.c:1961
serial8250_default_handle_irq+0xc8/0x1e0 drivers/tty/serial/8250/8250_port.c:1981
serial8250_interrupt+0xa1/0x1e0 drivers/tty/serial/8250/8250_core.c:126
__handle_irq_event_percpu+0x2a8/0xb20 kernel/irq/handle.c:158
handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
handle_irq_event+0x85/0x1e0 kernel/irq/handle.c:210
handle_edge_irq+0x245/0xbf0 kernel/irq/chip.c:819
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+0xae/0xd0 arch/x86/kernel/irq.c:240
asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:682
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
uart_write+0x66d/0x8d0 drivers/tty/serial/serial_core.c:602
process_output_block drivers/tty/n_tty.c:586 [inline]
n_tty_write+0xd7f/0x1260 drivers/tty/n_tty.c:2377
do_tty_write drivers/tty/tty_io.c:1018 [inline]
file_tty_write+0x504/0x890 drivers/tty/tty_io.c:1089
call_write_iter include/linux/fs.h:2265 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x857/0xbc0 fs/read_write.c:584
ksys_write+0x19c/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
-> #1 (&port_lock_key){-.-.}-{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
serial8250_console_write+0x19f/0x1a30 drivers/tty/serial/8250/8250_port.c:3433
call_console_driver kernel/printk/printk.c:1977 [inline]
console_emit_next_record+0x86d/0xc30 kernel/printk/printk.c:2777
console_unlock+0x278/0x7c0 kernel/printk/printk.c:2906
vprintk_emit+0x523/0x740 kernel/printk/printk.c:2303
_printk+0xd1/0x111 kernel/printk/printk.c:2328
register_console+0x6b9/0x9a0 kernel/printk/printk.c:3269
univ8250_console_init+0x41/0x43 drivers/tty/serial/8250/8250_core.c:687
console_init+0x1d6/0x7f3 kernel/printk/printk.c:3359
start_kernel+0x30b/0x53f init/main.c:1076
secondary_startup_64_no_verify+0xcf/0xdb
-> #0 (console_owner){-...}-{0:0}:
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
console_lock_spinning_enable kernel/printk/printk.c:1818 [inline]
console_emit_next_record+0x76c/0xc30 kernel/printk/printk.c:2774
console_unlock+0x278/0x7c0 kernel/printk/printk.c:2906
vprintk_emit+0x523/0x740 kernel/printk/printk.c:2303
_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_compat_str kernel/trace/bpf_trace.c:310 [inline]
bpf_probe_read_compat_str+0xe4/0x180 kernel/trace/bpf_trace.c:306
bpf_prog_c1796171ffc7efef+0x35/0x37
bpf_dispatcher_nop_func include/linux/bpf.h:1000 [inline]
__bpf_prog_run include/linux/filter.h:596 [inline]
bpf_prog_run include/linux/filter.h:610 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2284 [inline]
bpf_trace_run4+0x3c3/0x470 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:6557
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6872
irqentry_exit+0x53/0x80 kernel/entry/common.c:439
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
__local_bh_disable_ip+0x0/0x210
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:125 [inline]
_raw_spin_lock_bh+0x18/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
lock_sock_nested+0x66/0x100 net/core/sock.c:3491
lock_sock include/net/sock.h:1756 [inline]
sockopt_lock_sock net/core/sock.c:1056 [inline]
sk_setsockopt+0x4f3/0x34c0 net/core/sock.c:1112
mptcp_sol_socket_intval net/mptcp/sockopt.c:127 [inline]
mptcp_setsockopt_sol_socket_int net/mptcp/sockopt.c:189 [inline]
mptcp_setsockopt_sol_socket net/mptcp/sockopt.c:333 [inline]
mptcp_setsockopt+0x1b66/0x33f0 net/mptcp/sockopt.c:887
__sys_setsockopt+0x57e/0xa00 net/socket.c:2288
__do_sys_setsockopt net/socket.c:2299 [inline]
__se_sys_setsockopt net/socket.c:2296 [inline]
__x64_sys_setsockopt+0xb1/0xc0 net/socket.c:2296
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
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.3.865/6899:
#0: ffff88807e135d30 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1756 [inline]
#0: ffff88807e135d30 (sk_lock-AF_INET){+.+.}-{0:0}, at: sockopt_lock_sock net/core/sock.c:1056 [inline]
#0: ffff88807e135d30 (sk_lock-AF_INET){+.+.}-{0:0}, at: sk_setsockopt+0x4f3/0x34c0 net/core/sock.c:1112
#1: ffff8880b8f3a9d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537
#2: ffffffff8d32e680 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
#2: ffffffff8d32e680 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
#2: ffffffff8d32e680 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2283 [inline]
#2: ffffffff8d32e680 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x16a/0x470 kernel/trace/bpf_trace.c:2325
#3: ffffffff8d20a5a0 (console_lock){+.+.}-{0:0}, at: _printk+0xd1/0x111 kernel/printk/printk.c:2328
stack backtrace:
CPU: 1 PID: 6899 Comm: syz.3.865 Not tainted 6.1.130-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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
console_lock_spinning_enable kernel/printk/printk.c:1818 [inline]
console_emit_next_record+0x76c/0xc30 kernel/printk/printk.c:2774
console_unlock+0x278/0x7c0 kernel/printk/printk.c:2906
vprintk_emit+0x523/0x740 kernel/printk/printk.c:2303
_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_compat_str kernel/trace/bpf_trace.c:310 [inline]
bpf_probe_read_compat_str+0xe4/0x180 kernel/trace/bpf_trace.c:306
bpf_prog_c1796171ffc7efef+0x35/0x37
bpf_dispatcher_nop_func include/linux/bpf.h:1000 [inline]
__bpf_prog_run include/linux/filter.h:596 [inline]
bpf_prog_run include/linux/filter.h:610 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2284 [inline]
bpf_trace_run4+0x3c3/0x470 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:6557
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6872
irqentry_exit+0x53/0x80 kernel/entry/common.c:439
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__local_bh_disable_ip+0x0/0x210 kernel/softirq.c:325
Code: 00 66 0f 1f 84 00 00 00 00 00 89 f6 89 c9 e9 07 de 40 00 0f 1f 80 00 00 00 00 89 f6 e9 19 d6 40 00 66 0f 1f 84 00 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec a0 00
RSP: 0018:ffffc9001c68fa08 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff889e6fa6 RCX: ffff8880328ed940
RDX: dffffc0000000000 RSI: 0000000000000201 RDI: ffffffff889e6fa6
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff2257264
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88807e135c00 R14: ffff88807e135c98 R15: ffffc9001c68fb50
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:125 [inline]
_raw_spin_lock_bh+0x18/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
lock_sock_nested+0x66/0x100 net/core/sock.c:3491
lock_sock include/net/sock.h:1756 [inline]
sockopt_lock_sock net/core/sock.c:1056 [inline]
sk_setsockopt+0x4f3/0x34c0 net/core/sock.c:1112
mptcp_sol_socket_intval net/mptcp/sockopt.c:127 [inline]
mptcp_setsockopt_sol_socket_int net/mptcp/sockopt.c:189 [inline]
mptcp_setsockopt_sol_socket net/mptcp/sockopt.c:333 [inline]
mptcp_setsockopt+0x1b66/0x33f0 net/mptcp/sockopt.c:887
__sys_setsockopt+0x57e/0xa00 net/socket.c:2288
__do_sys_setsockopt net/socket.c:2299 [inline]
__se_sys_setsockopt net/socket.c:2296 [inline]
__x64_sys_setsockopt+0xb1/0xc0 net/socket.c:2296
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f58e858d169
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:00007f58e93e2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f58e87a5fa0 RCX: 00007f58e858d169
RDX: 000000000000000c RSI: 0000000000000001 RDI: 0000000000000005
RBP: 00007f58e93e2090 R08: 0000000000000004 R09: 0000000000000000
R10: 0000400000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f58e87a5fa0 R15: 00007ffecb9e9758
CPU: 1 PID: 6899 Comm: syz.3.865 Not tainted 6.1.130-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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_compat_str kernel/trace/bpf_trace.c:310 [inline]
bpf_probe_read_compat_str+0xe4/0x180 kernel/trace/bpf_trace.c:306
bpf_prog_c1796171ffc7efef+0x35/0x37
bpf_dispatcher_nop_func include/linux/bpf.h:1000 [inline]
__bpf_prog_run include/linux/filter.h:596 [inline]
bpf_prog_run include/linux/filter.h:610 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2284 [inline]
bpf_trace_run4+0x3c3/0x470 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:6557
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6872
irqentry_exit+0x53/0x80 kernel/entry/common.c:439
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__local_bh_disable_ip+0x0/0x210 kernel/softirq.c:325
Code: 00 66 0f 1f 84 00 00 00 00 00 89 f6 89 c9 e9 07 de 40 00 0f 1f 80 00 00 00 00 89 f6 e9 19 d6 40 00 66 0f 1f 84 00 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec a0 00
RSP: 0018:ffffc9001c68fa08 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff889e6fa6 RCX: ffff8880328ed940
RDX: dffffc0000000000 RSI: 0000000000000201 RDI: ffffffff889e6fa6
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff2257264
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88807e135c00 R14: ffff88807e135c98 R15: ffffc9001c68fb50
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:125 [inline]
_raw_spin_lock_bh+0x18/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
lock_sock_nested+0x66/0x100 net/core/sock.c:3491
lock_sock include/net/sock.h:1756 [inline]
sockopt_lock_sock net/core/sock.c:1056 [inline]
sk_setsockopt+0x4f3/0x34c0 net/core/sock.c:1112
mptcp_sol_socket_intval net/mptcp/sockopt.c:127 [inline]
mptcp_setsockopt_sol_socket_int net/mptcp/sockopt.c:189 [inline]
mptcp_setsockopt_sol_socket net/mptcp/sockopt.c:333 [inline]
mptcp_setsockopt+0x1b66/0x33f0 net/mptcp/sockopt.c:887
__sys_setsockopt+0x57e/0xa00 net/socket.c:2288
__do_sys_setsockopt net/socket.c:2299 [inline]
__se_sys_setsockopt net/socket.c:2296 [inline]
__x64_sys_setsockopt+0xb1/0xc0 net/socket.c:2296
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f58e858d169
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:00007f58e93e2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f58e87a5fa0 RCX: 00007f58e858d169
RDX: 000000000000000c RSI: 0000000000000001 RDI: 0000000000000005
RBP: 00007f58e93e2090 R08: 0000000000000004 R09: 0000000000000000
R10: 0000400000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007f58e87a5fa0 R15: 00007ffecb9e9758
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1)
7: 00 00
9: 89 f6 mov %esi,%esi
b: 89 c9 mov %ecx,%ecx
d: e9 07 de 40 00 jmp 0x40de19
12: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
19: 89 f6 mov %esi,%esi
1b: e9 19 d6 40 00 jmp 0x40d639
20: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1)
27: 00 00
* 29: 55 push %rbp <-- trapping instruction
2a: 48 89 e5 mov %rsp,%rbp
2d: 41 57 push %r15
2f: 41 56 push %r14
31: 41 55 push %r13
33: 41 54 push %r12
35: 53 push %rbx
36: 48 83 e4 e0 and $0xffffffffffffffe0,%rsp
3a: 48 rex.W
3b: 81 .byte 0x81
3c: ec in (%dx),%al
3d: a0 .byte 0xa0