==================================================================
BUG: KASAN: stack-out-of-bounds in profile_pc+0xa4/0xe0 arch/x86/kernel/time.c:42
Read of size 8 at addr ffffc90002cf7400 by task syz-executor133/3508
CPU: 0 PID: 3508 Comm: syz-executor133 Not tainted 5.15.153-syzkaller #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+0x1e3/0x2cb lib/dump_stack.c:106
print_address_description+0x63/0x3b0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:434 [inline]
kasan_report+0x16b/0x1c0 mm/kasan/report.c:451
profile_pc+0xa4/0xe0 arch/x86/kernel/time.c:42
profile_tick+0xd4/0x130 kernel/profile.c:416
tick_sched_handle kernel/time/tick-sched.c:255 [inline]
tick_sched_timer+0x390/0x550 kernel/time/tick-sched.c:1473
__run_hrtimer kernel/time/hrtimer.c:1686 [inline]
__hrtimer_run_queues+0x55b/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:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 a2 82 a4 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 d7 cb 31 f7 65 8b 05 a8 f9 dc 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc90002cf7400 EFLAGS: 00000206
RAX: 7758b574de8ce600 RBX: 1ffff9200059ee84 RCX: ffffffff8162f8e8
RDX: dffffc0000000000 RSI: ffffffff8a8b1500 RDI: 0000000000000001
RBP: ffffc90002cf7490 R08: dffffc0000000000 R09: fffffbfff1f7a01c
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff9200059ee80 R14: ffffc90002cf7420 R15: 0000000000000246
spin_unlock_irqrestore include/linux/spinlock.h:418 [inline]
__wake_up_common_lock kernel/sched/wait.c:140 [inline]
__wake_up_sync_key+0x121/0x1c0 kernel/sched/wait.c:205
sock_def_readable+0x135/0x240 net/core/sock.c:3092
__netlink_sendskb net/netlink/af_netlink.c:1277 [inline]
netlink_broadcast_deliver net/netlink/af_netlink.c:1409 [inline]
do_one_broadcast net/netlink/af_netlink.c:1494 [inline]
netlink_broadcast_filtered+0xc60/0x11a0 net/netlink/af_netlink.c:1538
netlink_broadcast+0x35/0x50 net/netlink/af_netlink.c:1562
uevent_net_broadcast_untagged lib/kobject_uevent.c:331 [inline]
kobject_uevent_net_broadcast+0x377/0x560 lib/kobject_uevent.c:409
kobject_uevent_env+0x567/0x8d0 lib/kobject_uevent.c:593
device_del+0x9c4/0xbd0 drivers/base/core.c:3592
rfkill_unregister+0xbe/0x220 net/rfkill/core.c:1116
hci_unregister_dev+0x3fa/0x550 net/bluetooth/hci_core.c:4053
vhci_release+0x73/0xc0 drivers/bluetooth/hci_vhci.c:345
__fput+0x3bf/0x890 fs/file_table.c:280
task_work_run+0x129/0x1a0 kernel/task_work.c:164
exit_task_work include/linux/task_work.h:32 [inline]
do_exit+0x6a3/0x2480 kernel/exit.c:872
do_group_exit+0x144/0x310 kernel/exit.c:994
get_signal+0xc66/0x14e0 kernel/signal.c:2889
arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:867
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:172
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:208
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x5d/0x250 kernel/entry/common.c:301
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fa8c4ad4839
Code: Unable to access opcode bytes at RIP 0x7fa8c4ad480f.
RSP: 002b:00007fa8c4291218 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: 0000000000010000 RBX: 00007fa8c4b5e408 RCX: 00007fa8c4ad4839
RDX: 00000000fffffecc RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007fa8c4b5e400 R08: 00007fa8c4290fa2 R09: 0000000000000000
R10: 0000000000000017 R11: 0000000000000246 R12: 00007fa8c4b2b1cc
R13: 676e696c69666f72 R14: 00000000fffffecc R15: 00007fa8c4b2b004
addr ffffc90002cf7400 is located in stack of task syz-executor133/3508 at offset 0 in frame:
_raw_spin_unlock_irqrestore+0x0/0x130 kernel/locking/spinlock.c:187
this frame has 1 object:
[32, 40) 'flags.i.i.i.i'
Memory state around the buggy address:
ffffc90002cf7300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc90002cf7380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90002cf7400: f1 f1 f1 f1 00 f3 f3 f3 00 00 00 00 00 00 00 00
^
ffffc90002cf7480: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00
ffffc90002cf7500: 00 f3 f3 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00
==================================================================
----------------
Code disassembly (best guess):
0: 9c pushf
1: 8f 44 24 20 pop 0x20(%rsp)
5: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1)
a: 74 08 je 0x14
c: 4c 89 f7 mov %r14,%rdi
f: e8 a2 82 a4 f7 call 0xf7a482b6
14: f6 44 24 21 02 testb $0x2,0x21(%rsp)
19: 75 4e jne 0x69
1b: 41 f7 c7 00 02 00 00 test $0x200,%r15d
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 d7 cb 31 f7 call 0xf731cc06 <-- trapping instruction
2f: 65 8b 05 a8 f9 dc 75 mov %gs:0x75dcf9a8(%rip),%eax # 0x75dcf9de
36: 85 c0 test %eax,%eax
38: 74 3f je 0x79
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: 04 24 add $0x24,%al
3e: 0e (bad)
3f: 36 ss