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general protection fault in gpiolib_seq_stop

Status: upstream: reported C repro on 2024/12/17 05:09
Subsystems: gpio
[Documentation on labels]
Reported-by: syzbot+b95d0c98f01e7a95da72@syzkaller.appspotmail.com
First crash: 262d, last: 4d21h
▶ ▼ Discussions (2)
Title Replies (including bot) Last reply
[PATCH] fs/seq_file: Exit the subsequent process when seq start fails 1 (1) 2024/12/17 07:37
[syzbot] [gpio?] general protection fault in gpiolib_seq_stop 2 (5) 2024/12/17 07:34
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/07/27 03:06 15m retest repro upstream report log
2025/07/27 03:06 15m retest repro upstream report log
2025/07/27 03:06 15m retest repro upstream report log
2025/07/27 03:06 15m retest repro upstream report log
2025/05/16 12:15 15m retest repro upstream report log
2025/05/16 12:15 16m retest repro upstream report log
2025/05/16 12:15 15m retest repro upstream report log
2025/05/16 12:15 16m retest repro upstream report log
2024/12/17 07:13 19m eadavis@qq.com https://github.com/ea1davis/linux gpio/syz OK log
2024/12/17 06:53 13m eadavis@qq.com https://github.com/ea1davis/linux gpio/syz report log

Sample crash report:
RSP: 002b:00007fcc5b84f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fcc5abb5fa0 RCX: 00007fcc5a98ebe9
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007fcc5b84f090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fcc5abb6038 R14: 00007fcc5abb5fa0 R15: 00007ffc32b04798
 </TASK>
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 UID: 0 PID: 6058 Comm: syz.0.17 Not tainted 6.16.0-syzkaller-12288-g2b38afce25c4 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:gpiolib_seq_stop+0x4c/0xe0 drivers/gpio/gpiolib.c:5306
Code: 48 c1 ea 03 80 3c 02 00 0f 85 98 00 00 00 48 8b 9b e0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 60 8b
RSP: 0018:ffffc90003047ad8 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000400
RDX: 0000000000000000 RSI: ffffffff8518f26e RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000dc0 R09: 00000000ffffffff
R10: ffffffff8e78aa93 R11: 0000000000000001 R12: 0000000000000000
R13: ffffffff8c19df60 R14: 0000000000010000 R15: 0000000000000000
FS:  00007fcc5b84f6c0(0000) GS:ffff8881246c6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32263fff CR3: 000000007a6a8000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 seq_read_iter+0x60d/0x12c0 fs/seq_file.c:251
 seq_read+0x3a3/0x570 fs/seq_file.c:162
 full_proxy_read+0x12e/0x1a0 fs/debugfs/file.c:378
 vfs_read+0x1e4/0xcf0 fs/read_write.c:570
 ksys_read+0x12a/0x250 fs/read_write.c:715
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcc5a98ebe9
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:00007fcc5b84f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fcc5abb5fa0 RCX: 00007fcc5a98ebe9
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007fcc5b84f090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fcc5abb6038 R14: 00007fcc5abb5fa0 R15: 00007ffc32b04798
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gpiolib_seq_stop+0x4c/0xe0 drivers/gpio/gpiolib.c:5306
Code: 48 c1 ea 03 80 3c 02 00 0f 85 98 00 00 00 48 8b 9b e0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 60 8b
RSP: 0018:ffffc90003047ad8 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000400
RDX: 0000000000000000 RSI: ffffffff8518f26e RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000dc0 R09: 00000000ffffffff
R10: ffffffff8e78aa93 R11: 0000000000000001 R12: 0000000000000000
R13: ffffffff8c19df60 R14: 0000000000010000 R15: 0000000000000000
FS:  00007fcc5b84f6c0(0000) GS:ffff8881246c6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005576b9f17950 CR3: 000000007a6a8000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	48 c1 ea 03          	shr    $0x3,%rdx
   4:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   8:	0f 85 98 00 00 00    	jne    0xa6
   e:	48 8b 9b e0 00 00 00 	mov    0xe0(%rbx),%rbx
  15:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1c:	fc ff df
  1f:	48 8d 7b 04          	lea    0x4(%rbx),%rdi
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx <-- trapping instruction
  2e:	48 89 f8             	mov    %rdi,%rax
  31:	83 e0 07             	and    $0x7,%eax
  34:	83 c0 03             	add    $0x3,%eax
  37:	38 d0                	cmp    %dl,%al
  39:	7c 04                	jl     0x3f
  3b:	84 d2                	test   %dl,%dl
  3d:	75 60                	jne    0x9f
  3f:	8b                   	.byte 0x8b

Crashes (62):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/08/11 03:55 upstream 2b38afce25c4 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/04/04 07:48 upstream 06a22366d6a1 1740c707 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2024/12/15 14:08 upstream 2d8308bf5b67 7cbfbb3a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2024/12/14 12:45 upstream a446e965a188 7cbfbb3a .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2024/12/13 05:51 upstream 150b567e0d57 3547e30f .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/08/27 14:28 upstream fab1beda7597 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/08/25 03:19 upstream 69fd6b99b8f8 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/08/24 12:42 upstream 8d245acc1e88 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/08/22 07:33 upstream 3957a5720157 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/08/21 19:19 upstream 32b7144f806e 3e79b825 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/08/18 16:34 upstream c17b750b3ad9 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/08/11 03:17 upstream 2b38afce25c4 32a0e5ed .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/07/13 02:51 upstream 3f31a806a62e 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/07/10 09:06 upstream 8c2e52ebbe88 956bd956 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/07/05 10:50 upstream c435a4f487e8 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/06/25 17:04 upstream 7595b66ae9de 26d77996 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/06/22 14:10 upstream 739a6c93cc75 d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/06/20 02:50 upstream 24770983ccfe ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/06/01 10:30 upstream 4cb6c8af8591 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/05/02 12:00 upstream ebd297a2affa d7f099d1 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/04/26 19:04 upstream f1a3944c860b c6b4fb39 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/04/21 11:03 upstream 9d7a0577c9db 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/04/14 13:20 upstream 8ffd015db85f 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/04/04 07:17 upstream 06a22366d6a1 1740c707 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/03/23 13:22 upstream 183601b78a9b 4e8d3850 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/03/21 13:08 upstream b3ee1e460951 62330552 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/03/16 21:10 upstream cb82ca153949 e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/03/16 04:58 upstream eb88e6bfbc0a e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/03/12 12:16 upstream 0fed89a961ea ee70e6db .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/03/09 21:35 upstream 1110ce6a1e34 163f510d .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/03/09 03:55 upstream b7c90e3e717a 163f510d .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/03/07 22:28 upstream 00a7d39898c8 7e3bd60d .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/02/28 08:47 upstream 1e15510b71c9 6a8fcbc4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/02/22 13:58 upstream ff202c5028a1 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/02/18 09:33 upstream 2408a807bfc3 429ea007 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/02/14 22:36 upstream 128c8f96eb86 fe17639f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/02/13 17:01 upstream 4dc1d1bec898 7320a65f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/02/12 09:01 upstream 09fbf3d50205 f2baddf5 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/02/10 01:18 upstream 69b54314c975 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/02/09 08:03 upstream 9946eaf552b1 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/02/07 13:36 upstream bb066fe812d6 a4f327c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/02/06 02:12 upstream 92514ef226f5 577d049b .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/02/02 09:37 upstream 69e858e0b8b2 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/01/31 05:26 upstream 2a9f04bde07a 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/01/25 09:14 upstream ae8b53aac327 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/01/18 20:46 upstream 595523945be0 f2cb035c .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/01/17 12:46 upstream 9bffa1ad25b8 bb91bdd4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/01/15 04:02 upstream c3812b15000c 7315a7cf .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/01/14 05:47 upstream c45323b7560e b1f1cd88 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/01/11 06:59 upstream 77a903cd8e5a 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/01/09 07:24 upstream 0b7958fa05d5 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/01/08 21:12 upstream 0b7958fa05d5 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/01/08 04:31 upstream 09a0fa92e5b4 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/01/03 14:05 upstream 0bc21e701a6f 96d578a3 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2024/12/22 13:44 upstream 48f506ad0b68 b4fbdbd4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2024/12/19 16:47 upstream eabcdba3ad40 1d58202c .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2024/12/18 21:04 upstream aef25be35d23 1432fc84 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2024/12/15 13:35 upstream 2d8308bf5b67 7cbfbb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2024/12/14 12:31 upstream a446e965a188 7cbfbb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2024/12/13 05:00 upstream 150b567e0d57 3547e30f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in gpiolib_seq_stop
2025/08/12 12:18 upstream 53e760d89498 c06e8995 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: slab-use-after-free Read in gpiolib_seq_stop
2025/04/11 16:44 upstream 900241a5cc15 12ba9c21 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: slab-use-after-free Read in gpiolib_seq_stop
* Struck through repros no longer work on HEAD.