------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted
------------------------------------------------------
syz-executor.2/5660 is trying to acquire lock:
ffffffff8e00dbb8 ((console_sem).lock){-...}-{2:2}, at: down_trylock+0x20/0xa0 kernel/locking/semaphore.c:139
but task is already holding lock:
ffff8880b953e318 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&rq->__lock){-.-.}-{2:2}:
lock_acquire+0x1e4/0x530 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:1385 [inline]
rq_lock kernel/sched/sched.h:1699 [inline]
task_fork_fair+0x61/0x1e0 kernel/sched/fair.c:12629
sched_cgroup_fork+0x37c/0x410 kernel/sched/core.c:4845
copy_process+0x2217/0x3df0 kernel/fork.c:2498
kernel_clone+0x223/0x840 kernel/fork.c:2796
user_mode_thread+0x132/0x1a0 kernel/fork.c:2874
rest_init+0x27/0x300 init/main.c:695
arch_call_rest_init+0xe/0x10 init/main.c:831
start_kernel+0x47a/0x500 init/main.c:1077
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:509
x86_64_start_kernel+0x99/0xa0 arch/x86/kernel/head64.c:490
common_startup_64+0x13e/0x147
-> #1 (&p->pi_lock){-.-.}-{2:2}:
lock_acquire+0x1e4/0x530 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
up+0x72/0x90 kernel/locking/semaphore.c:191
__up_console_sem kernel/printk/printk.c:340 [inline]
__console_unlock kernel/printk/printk.c:2725 [inline]
console_unlock+0x22f/0x4d0 kernel/printk/printk.c:3044
vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2342
_printk+0xd5/0x120 kernel/printk/printk.c:2367
batadv_check_known_mac_addr+0x2bd/0x410 net/batman-adv/hard-interface.c:528
batadv_hard_if_event+0x3a5/0x1620 net/batman-adv/hard-interface.c:998
notifier_call_chain+0x18f/0x3b0 kernel/notifier.c:93
call_netdevice_notifiers_extack net/core/dev.c:1988 [inline]
call_netdevice_notifiers net/core/dev.c:2002 [inline]
dev_set_mac_address+0x3d9/0x510 net/core/dev.c:8946
dev_set_mac_address_user+0x31/0x50 net/core/dev.c:8960
do_setlink+0x8b3/0x41f0 net/core/rtnetlink.c:2839
__rtnl_newlink net/core/rtnetlink.c:3680 [inline]
rtnl_newlink+0x180b/0x20a0 net/core/rtnetlink.c:3727
rtnetlink_rcv_msg+0x89b/0x10d0 net/core/rtnetlink.c:6595
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2559
netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline]
netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1361
netlink_sendmsg+0x8e1/0xcb0 net/netlink/af_netlink.c:1905
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
__sys_sendto+0x3a4/0x4f0 net/socket.c:2191
__do_sys_sendto net/socket.c:2203 [inline]
__se_sys_sendto net/socket.c:2199 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2199
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
-> #0 ((console_sem).lock){-...}-{2:2}:
check_prev_add kernel/locking/lockdep.c:3134 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain+0x18cb/0x58e0 kernel/locking/lockdep.c:3869
__lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
lock_acquire+0x1e4/0x530 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
down_trylock+0x20/0xa0 kernel/locking/semaphore.c:139
__down_trylock_console_sem+0x109/0x250 kernel/printk/printk.c:323
console_trylock kernel/printk/printk.c:2678 [inline]
console_trylock_spinning kernel/printk/printk.c:1958 [inline]
vprintk_emit+0x283/0x770 kernel/printk/printk.c:2341
_printk+0xd5/0x120 kernel/printk/printk.c:2367
__report_bug lib/bug.c:195 [inline]
report_bug+0x346/0x500 lib/bug.c:219
handle_bug+0x3e/0x70 arch/x86/kernel/traps.c:239
exc_invalid_op+0x1a/0x50 arch/x86/kernel/traps.c:260
asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:621
__local_bh_enable_ip+0x1be/0x200 kernel/softirq.c:362
spin_unlock_bh include/linux/spinlock.h:396 [inline]
__sock_map_delete net/core/sock_map.c:424 [inline]
sock_map_delete_elem+0xca/0x140 net/core/sock_map.c:446
bpf_prog_2c29ac5cdc6b1842+0x42/0x46
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run4+0x25a/0x490 kernel/trace/bpf_trace.c:2422
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x250b/0x49d0 kernel/sched/core.c:6733
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7058
irqentry_exit+0x5e/0x90 kernel/entry/common.c:348
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
arch_test_and_set_bit arch/x86/include/asm/bitops.h:137 [inline]
test_and_set_bit include/asm-generic/bitops/instrumented-atomic.h:72 [inline]
queue_work_on+0x1f8/0x250 kernel/workqueue.c:2434
bit_putcs+0x18ba/0x1db0
fbcon_putcs+0x255/0x390 drivers/video/fbdev/core/fbcon.c:1283
fbcon_redraw+0x16c/0x400 drivers/video/fbdev/core/fbcon.c:1635
fbcon_scroll+0x325/0x5b0 drivers/video/fbdev/core/fbcon.c:1831
con_scroll+0x751/0x9e0 drivers/tty/vt/vt.c:577
lf drivers/tty/vt/vt.c:1461 [inline]
do_con_trol drivers/tty/vt/vt.c:2149 [inline]
do_con_write+0x2b3d/0x7820 drivers/tty/vt/vt.c:2905
con_put_char+0x95/0xf0 drivers/tty/vt/vt.c:3259
tty_put_char+0xe3/0x190 drivers/tty/tty_io.c:3167
do_output_char+0x6b1/0x970 drivers/tty/n_tty.c:469
process_output drivers/tty/n_tty.c:494 [inline]
n_tty_write+0xe0e/0x1230 drivers/tty/n_tty.c:2390
iterate_tty_write drivers/tty/tty_io.c:1021 [inline]
file_tty_write+0x54f/0x9b0 drivers/tty/tty_io.c:1096
call_write_iter include/linux/fs.h:2108 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa84/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
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 ***
7 locks held by syz-executor.2/5660:
#0: ffff88801efea0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffff88801efea130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: tty_write_lock drivers/tty/tty_io.c:954 [inline]
#1: ffff88801efea130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: iterate_tty_write drivers/tty/tty_io.c:973 [inline]
#1: ffff88801efea130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: file_tty_write+0x1f3/0x9b0 drivers/tty/tty_io.c:1096
#2: ffff88801efea2e8 (&tty->termios_rwsem){++++}-{3:3}, at: n_tty_write+0x264/0x1230 drivers/tty/n_tty.c:2362
#3: ffffc900034eb380 (&ldata->output_lock){+.+.}-{3:3}, at: process_output drivers/tty/n_tty.c:491 [inline]
#3: ffffc900034eb380 (&ldata->output_lock){+.+.}-{3:3}, at: n_tty_write+0xdf8/0x1230 drivers/tty/n_tty.c:2390
#4: ffffffff8e00dc20 (console_lock){+.+.}-{0:0}, at: do_con_write+0x114/0x7820 drivers/tty/vt/vt.c:2862
#5: ffff8880b953e318 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
#6: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#6: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#6: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline]
#6: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x16e/0x490 kernel/trace/bpf_trace.c:2422
stack backtrace:
CPU: 1 PID: 5660 Comm: syz-executor.2 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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+0x18cb/0x58e0 kernel/locking/lockdep.c:3869
__lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
lock_acquire+0x1e4/0x530 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
down_trylock+0x20/0xa0 kernel/locking/semaphore.c:139
__down_trylock_console_sem+0x109/0x250 kernel/printk/printk.c:323
console_trylock kernel/printk/printk.c:2678 [inline]
console_trylock_spinning kernel/printk/printk.c:1958 [inline]
vprintk_emit+0x283/0x770 kernel/printk/printk.c:2341
_printk+0xd5/0x120 kernel/printk/printk.c:2367
__report_bug lib/bug.c:195 [inline]
report_bug+0x346/0x500 lib/bug.c:219
handle_bug+0x3e/0x70 arch/x86/kernel/traps.c:239
exc_invalid_op+0x1a/0x50 arch/x86/kernel/traps.c:260
asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:621
RIP: 0010:__local_bh_enable_ip+0x1be/0x200 kernel/softirq.c:362
Code: 3b 44 24 60 75 52 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 90 0f 0b 90 e9 ca fe ff ff e8 55 00 00 00 eb 9c 90 <0f> 0b 90 e9 fa fe ff ff 48 c7 c1 0c 41 86 8f 80 e1 07 80 c1 03 38
RSP: 0018:ffffc9000345e9c0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 1ffff9200068bd3c RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff895b48fa
RBP: ffffc9000345ea80 R08: ffff8880635479eb R09: 1ffff1100c6a8f3d
R10: dffffc0000000000 R11: ffffed100c6a8f3e R12: dffffc0000000000
R13: ffff88807f7f7980 R14: ffffc9000345ea00 R15: 0000000000000201
spin_unlock_bh include/linux/spinlock.h:396 [inline]
__sock_map_delete net/core/sock_map.c:424 [inline]
sock_map_delete_elem+0xca/0x140 net/core/sock_map.c:446
bpf_prog_2c29ac5cdc6b1842+0x42/0x46
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run4+0x25a/0x490 kernel/trace/bpf_trace.c:2422
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x250b/0x49d0 kernel/sched/core.c:6733
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7058
irqentry_exit+0x5e/0x90 kernel/entry/common.c:348
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:arch_test_and_set_bit arch/x86/include/asm/bitops.h:137 [inline]
RIP: 0010:test_and_set_bit include/asm-generic/bitops/instrumented-atomic.h:72 [inline]
RIP: 0010:queue_work_on+0x1f8/0x250 kernel/workqueue.c:2434
Code: 11 e8 ec f1 35 00 4d 85 e4 75 16 e8 e2 f1 35 00 eb 15 e8 db f1 35 00 e8 66 91 0c 0a 4d 85 e4 74 ea e8 cc f1 35 00 fb 45 84 ed <0f> 94 c0 48 c7 44 24 20 0e 36 e0 45 48 b9 00 00 00 00 00 fc ff df
RSP: 0018:ffffc9000345ef60 EFLAGS: 00000246
RAX: ffffffff815f0284 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000a2e9000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000345f030 R08: ffffffff815f025a R09: 1ffffffff2595ca0
R10: dffffc0000000000 R11: fffffbfff2595ca1 R12: 0000000000000200
R13: 0000000000000000 R14: 0000000000000046 R15: 1ffff9200068bdf0
bit_putcs+0x18ba/0x1db0
fbcon_putcs+0x255/0x390 drivers/video/fbdev/core/fbcon.c:1283
fbcon_redraw+0x16c/0x400 drivers/video/fbdev/core/fbcon.c:1635
fbcon_scroll+0x325/0x5b0 drivers/video/fbdev/core/fbcon.c:1831
con_scroll+0x751/0x9e0 drivers/tty/vt/vt.c:577
lf drivers/tty/vt/vt.c:1461 [inline]
do_con_trol drivers/tty/vt/vt.c:2149 [inline]
do_con_write+0x2b3d/0x7820 drivers/tty/vt/vt.c:2905
con_put_char+0x95/0xf0 drivers/tty/vt/vt.c:3259
tty_put_char+0xe3/0x190 drivers/tty/tty_io.c:3167
do_output_char+0x6b1/0x970 drivers/tty/n_tty.c:469
process_output drivers/tty/n_tty.c:494 [inline]
n_tty_write+0xe0e/0x1230 drivers/tty/n_tty.c:2390
iterate_tty_write drivers/tty/tty_io.c:1021 [inline]
file_tty_write+0x54f/0x9b0 drivers/tty/tty_io.c:1096
call_write_iter include/linux/fs.h:2108 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa84/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7faccae7de69
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:00007faccbb280c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007faccafabf80 RCX: 00007faccae7de69
RDX: 0000000000001006 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007faccaeca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007faccafabf80 R15: 00007ffdceb1cee8
WARNING: CPU: 1 PID: 5660 at kernel/softirq.c:362 __local_bh_enable_ip+0x1be/0x200 kernel/softirq.c:362
Modules linked in:
CPU: 1 PID: 5660 Comm: syz-executor.2 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__local_bh_enable_ip+0x1be/0x200 kernel/softirq.c:362
Code: 3b 44 24 60 75 52 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 90 0f 0b 90 e9 ca fe ff ff e8 55 00 00 00 eb 9c 90 <0f> 0b 90 e9 fa fe ff ff 48 c7 c1 0c 41 86 8f 80 e1 07 80 c1 03 38
RSP: 0018:ffffc9000345e9c0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 1ffff9200068bd3c RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff895b48fa
RBP: ffffc9000345ea80 R08: ffff8880635479eb R09: 1ffff1100c6a8f3d
R10: dffffc0000000000 R11: ffffed100c6a8f3e R12: dffffc0000000000
R13: ffff88807f7f7980 R14: ffffc9000345ea00 R15: 0000000000000201
FS: 00007faccbb286c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30521000 CR3: 000000002b7f4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
spin_unlock_bh include/linux/spinlock.h:396 [inline]
__sock_map_delete net/core/sock_map.c:424 [inline]
sock_map_delete_elem+0xca/0x140 net/core/sock_map.c:446
bpf_prog_2c29ac5cdc6b1842+0x42/0x46
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run4+0x25a/0x490 kernel/trace/bpf_trace.c:2422
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x250b/0x49d0 kernel/sched/core.c:6733
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7058
irqentry_exit+0x5e/0x90 kernel/entry/common.c:348
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:arch_test_and_set_bit arch/x86/include/asm/bitops.h:137 [inline]
RIP: 0010:test_and_set_bit include/asm-generic/bitops/instrumented-atomic.h:72 [inline]
RIP: 0010:queue_work_on+0x1f8/0x250 kernel/workqueue.c:2434
Code: 11 e8 ec f1 35 00 4d 85 e4 75 16 e8 e2 f1 35 00 eb 15 e8 db f1 35 00 e8 66 91 0c 0a 4d 85 e4 74 ea e8 cc f1 35 00 fb 45 84 ed <0f> 94 c0 48 c7 44 24 20 0e 36 e0 45 48 b9 00 00 00 00 00 fc ff df
RSP: 0018:ffffc9000345ef60 EFLAGS: 00000246
RAX: ffffffff815f0284 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000a2e9000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000345f030 R08: ffffffff815f025a R09: 1ffffffff2595ca0
R10: dffffc0000000000 R11: fffffbfff2595ca1 R12: 0000000000000200
R13: 0000000000000000 R14: 0000000000000046 R15: 1ffff9200068bdf0
bit_putcs+0x18ba/0x1db0
fbcon_putcs+0x255/0x390 drivers/video/fbdev/core/fbcon.c:1283
fbcon_redraw+0x16c/0x400 drivers/video/fbdev/core/fbcon.c:1635
fbcon_scroll+0x325/0x5b0 drivers/video/fbdev/core/fbcon.c:1831
con_scroll+0x751/0x9e0 drivers/tty/vt/vt.c:577
lf drivers/tty/vt/vt.c:1461 [inline]
do_con_trol drivers/tty/vt/vt.c:2149 [inline]
do_con_write+0x2b3d/0x7820 drivers/tty/vt/vt.c:2905
con_put_char+0x95/0xf0 drivers/tty/vt/vt.c:3259
tty_put_char+0xe3/0x190 drivers/tty/tty_io.c:3167
do_output_char+0x6b1/0x970 drivers/tty/n_tty.c:469
process_output drivers/tty/n_tty.c:494 [inline]
n_tty_write+0xe0e/0x1230 drivers/tty/n_tty.c:2390
iterate_tty_write drivers/tty/tty_io.c:1021 [inline]
file_tty_write+0x54f/0x9b0 drivers/tty/tty_io.c:1096
call_write_iter include/linux/fs.h:2108 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa84/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7faccae7de69
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:00007faccbb280c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007faccafabf80 RCX: 00007faccae7de69
RDX: 0000000000001006 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007faccaeca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007faccafabf80 R15: 00007ffdceb1cee8
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Code disassembly (best guess):
0: 11 e8 adc %ebp,%eax
2: ec in (%dx),%al
3: f1 int1
4: 35 00 4d 85 e4 xor $0xe4854d00,%eax
9: 75 16 jne 0x21
b: e8 e2 f1 35 00 call 0x35f1f2
10: eb 15 jmp 0x27
12: e8 db f1 35 00 call 0x35f1f2
17: e8 66 91 0c 0a call 0xa0c9182
1c: 4d 85 e4 test %r12,%r12
1f: 74 ea je 0xb
21: e8 cc f1 35 00 call 0x35f1f2
26: fb sti
27: 45 84 ed test %r13b,%r13b
* 2a: 0f 94 c0 sete %al <-- trapping instruction
2d: 48 c7 44 24 20 0e 36 movq $0x45e0360e,0x20(%rsp)
34: e0 45
36: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx
3d: fc ff df