syzbot

 sign-in | mailing list | source | docs
🐞 Open [692]
🐞 Fixed [72]
🐞 Invalid [863]
⬇ Missing Backports [108]
≡ Crashes
Kernel Health Bugs/Month Bug Lifetimes Fuzzing
💬 Send us feedback

KASAN: stack-out-of-bounds Read in profile_pc

Status: auto-obsoleted due to no activity on 2024/09/13 06:51
Reported-by: syzbot+ec0607ebe47049bb44b6@syzkaller.appspotmail.com
First crash: 783d, last: 312d
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Bug presence (1)
Date Name Commit Repro Result
2024/07/20 upstream (ToT) 3c3ff7be9729 C Didn't crash
▶ ▼ Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-54 KASAN: stack-out-of-bounds Read in profile_pc C 1799 271d 1447d 0/2 upstream: reported C repro on 2021/05/27 02:31
linux-6.1 KASAN: stack-out-of-bounds Read in profile_pc C done 690 312d 729d 3/3 fixed on 2024/08/15 03:06
upstream KASAN: stack-out-of-bounds Read in profile_pc kernel C error done 9302 317d 1443d 28/28 fixed on 2024/10/31 09:35
▶ ▼ Fix bisection attempts (2)
Created Duration User Patch Repo Result
2023/12/22 15:13 34m bisect fix linux-5.15.y error job log
2023/04/26 02:31 1h08m bisect fix linux-5.15.y OK (0) job log log

Sample crash report:
==================================================================
BUG: KASAN: stack-out-of-bounds in profile_pc+0xa4/0xe0 arch/x86/kernel/time.c:42
Read of size 8 at addr ffffc90004f3f8a0 by task syz-executor236/19553

CPU: 0 PID: 19553 Comm: syz-executor236 Not tainted 5.15.160-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 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
 </IRQ>
 <TASK>
 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 f2 bd a2 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> f7 f4 2f f7 65 8b 05 c8 02 db 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc90004f3f8a0 EFLAGS: 00000206
RAX: ea705fd173b47200 RBX: 1ffff920009e7f18 RCX: ffffffff913eff03
RDX: dffffc0000000000 RSI: ffffffff8a8b2980 RDI: 0000000000000001
RBP: ffffc90004f3f930 R08: ffffffff8186dcf0 R09: ffffed10023bb80b
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff920009e7f14 R14: ffffc90004f3f8c0 R15: 0000000000000246
 spin_unlock_irqrestore include/linux/spinlock.h:418 [inline]
 unlock_page_lruvec_irqrestore include/linux/memcontrol.h:1538 [inline]
 release_pages+0x1b89/0x1f40 mm/swap.c:960
 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
 tlb_flush_mmu mm/mmu_gather.c:247 [inline]
 tlb_finish_mmu+0x177/0x320 mm/mmu_gather.c:338
 exit_mmap+0x3cd/0x670 mm/mmap.c:3188
 __mmput+0x112/0x3b0 kernel/fork.c:1126
 exit_mm+0x688/0x7f0 kernel/exit.c:548
 do_exit+0x626/0x2480 kernel/exit.c:859
 do_group_exit+0x144/0x310 kernel/exit.c:994
 __do_sys_exit_group kernel/exit.c:1005 [inline]
 __se_sys_exit_group kernel/exit.c:1003 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1003
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1ffc34ebc9
Code: Unable to access opcode bytes at RIP 0x7f1ffc34eb9f.
RSP: 002b:00007fff85698c58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1ffc34ebc9
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 00007f1ffc3c92b0 R08: ffffffffffffffb8 R09: 0000000000000006
R10: 0000000000000006 R11: 0000000000000246 R12: 00007f1ffc3c92b0
R13: 0000000000000000 R14: 00007f1ffc3c9d00 R15: 00007f1ffc31fe10
 </TASK>


addr ffffc90004f3f8a0 is located in stack of task syz-executor236/19553 at offset 0 in frame:
 _raw_spin_unlock_irqrestore+0x0/0x130

this frame has 1 object:
 [32, 40) 'flags.i.i.i.i'

Memory state around the buggy address:
 ffffc90004f3f780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90004f3f800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc90004f3f880: 00 00 00 00 f1 f1 f1 f1 00 f3 f3 f3 00 00 00 00
                               ^
 ffffc90004f3f900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffc90004f3f980: 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 f2 bd a2 f7       	call   0xf7a2be06
  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 f7 f4 2f f7       	call   0xf72ff526 <-- trapping instruction
  2f:	65 8b 05 c8 02 db 75 	mov    %gs:0x75db02c8(%rip),%eax        # 0x75db02fe
  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

Crashes (775):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/03 05:20 linux-5.15.y c61bd26ae81a 3113787f .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/04/03 12:31 linux-5.15.y 9465fef4ae35 7925100d .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2023/12/25 05:17 linux-5.15.y d93fa2c78854 fb427a07 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2023/08/28 23:22 linux-5.15.y 5ddfe5cc8716 7ba13a15 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2023/05/14 08:45 linux-5.15.y b0ece631f84a 2b9ba477 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2023/03/21 15:40 linux-5.15.y 8020ae3c051d 7939252e .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/05 06:50 linux-5.15.y 4878aadf2d15 3f2748a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/05 04:36 linux-5.15.y 4878aadf2d15 3f2748a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/04 21:40 linux-5.15.y 4878aadf2d15 3f2748a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/04 20:14 linux-5.15.y 4878aadf2d15 3f2748a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/04 15:35 linux-5.15.y 4878aadf2d15 3f2748a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/04 13:57 linux-5.15.y 4878aadf2d15 3f2748a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/03 17:58 linux-5.15.y 4878aadf2d15 1ecfa2d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/03 11:23 linux-5.15.y 4878aadf2d15 1ecfa2d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/03 11:21 linux-5.15.y 4878aadf2d15 1ecfa2d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/03 03:27 linux-5.15.y 4878aadf2d15 07f0a0a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/02 22:40 linux-5.15.y 4878aadf2d15 07f0a0a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/02 18:28 linux-5.15.y 4878aadf2d15 07f0a0a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/02 17:41 linux-5.15.y 4878aadf2d15 07f0a0a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/02 15:44 linux-5.15.y 4878aadf2d15 07f0a0a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/02 08:34 linux-5.15.y 4878aadf2d15 b294e901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/02 07:27 linux-5.15.y 4878aadf2d15 b294e901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/02 04:25 linux-5.15.y 4878aadf2d15 b294e901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/02 02:17 linux-5.15.y 4878aadf2d15 b294e901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/02 00:23 linux-5.15.y 4878aadf2d15 b294e901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/01 23:54 linux-5.15.y 4878aadf2d15 b294e901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/01 21:46 linux-5.15.y 4878aadf2d15 b294e901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/01 19:06 linux-5.15.y 4878aadf2d15 b294e901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/07/01 11:36 linux-5.15.y 4878aadf2d15 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/30 23:25 linux-5.15.y 4878aadf2d15 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/30 19:34 linux-5.15.y 4878aadf2d15 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/30 16:13 linux-5.15.y 4878aadf2d15 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/30 13:24 linux-5.15.y 4878aadf2d15 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/30 04:37 linux-5.15.y 4878aadf2d15 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/30 04:37 linux-5.15.y 4878aadf2d15 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/29 22:36 linux-5.15.y 4878aadf2d15 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/29 19:55 linux-5.15.y 4878aadf2d15 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/29 16:37 linux-5.15.y 4878aadf2d15 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/29 09:32 linux-5.15.y 4878aadf2d15 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/29 06:38 linux-5.15.y 4878aadf2d15 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/29 02:36 linux-5.15.y 4878aadf2d15 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/28 19:43 linux-5.15.y 4878aadf2d15 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/28 11:15 linux-5.15.y 4878aadf2d15 6ef39602 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/28 11:13 linux-5.15.y 4878aadf2d15 6ef39602 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/28 08:41 linux-5.15.y 4878aadf2d15 6ef39602 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/28 03:59 linux-5.15.y 4878aadf2d15 6ef39602 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/28 02:55 linux-5.15.y 4878aadf2d15 6ef39602 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/27 20:40 linux-5.15.y 4878aadf2d15 6ef39602 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/27 18:10 linux-5.15.y 4878aadf2d15 6ef39602 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/27 15:50 linux-5.15.y 4878aadf2d15 6ef39602 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2024/06/27 15:22 linux-5.15.y 4878aadf2d15 6ef39602 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
2023/03/21 15:12 linux-5.15.y 8020ae3c051d 7939252e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: stack-out-of-bounds Read in profile_pc
* Struck through repros no longer work on HEAD.