==================================================================
BUG: KASAN: stack-out-of-bounds in profile_pc+0xa4/0xe0 arch/x86/kernel/time.c:42
Read of size 8 at addr ffffc90002d378c0 by task syz-executor215/3501
CPU: 0 PID: 3501 Comm: syz-executor215 Not tainted 5.15.145-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
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:1685 [inline]
__hrtimer_run_queues+0x55b/0xcf0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
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 63 a4 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 e7 ba 31 f7 65 8b 05 58 f6 dc 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc90002d378c0 EFLAGS: 00000206
RAX: 9f30fa84b3699f00 RBX: 1ffff920005a6f1c RCX: ffffffff8162eb78
RDX: dffffc0000000000 RSI: ffffffff8a8b0f80 RDI: 0000000000000001
RBP: ffffc90002d37950 R08: dffffc0000000000 R09: fffffbfff1f79e19
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff920005a6f18 R14: ffffc90002d378e0 R15: 0000000000000246
try_to_wake_up+0x807/0x1300 kernel/sched/core.c:4148
__cpuhp_kick_ap kernel/cpu.c:540 [inline]
cpuhp_invoke_ap_callback kernel/cpu.c:875 [inline]
cpuhp_issue_call+0x314/0x7f0 kernel/cpu.c:1956
__cpuhp_setup_state_cpuslocked+0x44d/0x810 kernel/cpu.c:2104
__cpuhp_setup_state+0x3b/0x50 kernel/cpu.c:2133
cpuhp_setup_state include/linux/cpuhotplug.h:282 [inline]
create_proc_profile+0x8b/0x110 kernel/profile.c:551
profiling_store+0x7d/0xc0 kernel/ksysfs.c:83
kernfs_fop_write_iter+0x3a2/0x4f0 fs/kernfs/file.c:296
call_write_iter include/linux/fs.h:2146 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0xacf/0xe50 fs/read_write.c:594
ksys_write+0x1a2/0x2c0 fs/read_write.c:647
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f458c3d4cb9
Code: d8 5b 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcd8a22ec8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f458c41b22b RCX: 00007f458c3d4cb9
RDX: 0000000000000048 RSI: 0000000020002480 RDI: 0000000000000003
RBP: 00007f458c44c380 R08: 00007ffcd8a22c54 R09: 00007ffcd8a22f84
R10: 0000000000000014 R11: 0000000000000246 R12: 0000000000000004
R13: 0000000000000003 R14: 00007ffcd8a22fb0 R15: 00007ffcd8a22f8d
addr ffffc90002d378c0 is located in stack of task syz-executor215/3501 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:
ffffc90002d37780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc90002d37800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90002d37880: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 f3 f3 f3
^
ffffc90002d37900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc90002d37980: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2
==================================================================
----------------
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 63 a4 f7 call 0xf7a463b6
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 e7 ba 31 f7 call 0xf731bb16 <-- trapping instruction
2f: 65 8b 05 58 f6 dc 75 mov %gs:0x75dcf658(%rip),%eax # 0x75dcf68e
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