syzbot


general protection fault in step_into

Status: upstream: reported C repro on 2023/05/14 14:12
Reported-by: syzbot+0eeb26335ddeb506c6d0@syzkaller.appspotmail.com
First crash: 404d, last: 11d
Cause bisection: introduced by (bisect log) :
commit 6be5b06e4195b002c52a1c2c82573ea7a76ce111
Author: Daniel Rosenberg <drosen@google.com>
Date: Thu Dec 2 22:38:56 2021 +0000

  ANDROID: fuse-bpf v1

Crash: general protection fault in step_into (log)
Repro: C syz .config
  
Similar bugs (6)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 general protection fault in step_into origin:lts-only C 22 8d16h 69d 0/3 upstream: reported C repro on 2024/04/13 08:21
upstream general protection fault in step_into fs 1 1391d 1387d 0/27 auto-closed as invalid on 2020/11/28 01:59
linux-6.1 KASAN: null-ptr-deref Read in step_into origin:lts-only C inconclusive 18 16d 76d 0/3 upstream: reported C repro on 2024/04/06 11:08
android-5-15 general protection fault in step_into origin:downstream C done 71 1d06h 404d 0/2 upstream: reported C repro on 2023/05/14 14:01
android-6-1 general protection fault in step_into origin:downstream C done 65 15d 404d 0/2 upstream: reported C repro on 2023/05/14 14:12
upstream BUG: unable to handle kernel paging request in step_into ntfs3 C error done 5 167d 534d 0/27 auto-obsoleted due to no activity on 2024/05/25 15:27
Last patch testing requests (10)
Created Duration User Patch Repo Result
2024/06/02 00:13 4m retest repro android13-5.10-lts report log
2024/06/02 00:13 13m retest repro android13-5.10-lts report log
2024/06/02 00:13 33m retest repro android13-5.10-lts report log
2024/06/02 00:13 6m retest repro android13-5.10-lts report log
2024/06/02 00:13 28m retest repro android13-5.10-lts report log
2024/02/10 23:00 5m retest repro android13-5.10-lts report log
2024/02/10 23:00 6m retest repro android13-5.10-lts report log
2024/02/10 23:00 6m retest repro android13-5.10-lts report log
2024/02/10 23:00 6m retest repro android13-5.10-lts report log
2024/02/10 23:00 4m retest repro android13-5.10-lts report log

Sample crash report:
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 PID: 295 Comm: syz-executor190 Not tainted 5.10.214-syzkaller-00114-gd3c4d815bf09 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:traverse_mounts fs/namei.c:1357 [inline]
RIP: 0010:handle_mounts fs/namei.c:1477 [inline]
RIP: 0010:step_into+0x1b9/0xec0 fs/namei.c:1782
Code: 24 0f 85 cf 0a 00 00 44 8b 3a 43 80 3c 2c 00 74 0a 48 8b 7c 24 18 e8 c6 97 f3 ff 48 8b 9c 24 b8 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 c1 0a 00 00 8b 1b 89 de 81 e6 00 00 07
RSP: 0018:ffffc90000b275c0 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff88811f1913c0
RDX: ffffc90000b27bd8 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000b276f0 R08: ffffffff81b4a4ff R09: ffffed102399e765
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000164ecf
R13: dffffc0000000000 R14: ffffc90000b27ba0 R15: 0000000000000011
FS:  00007f62236d16c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000b000 CR3: 0000000118682000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 walk_component+0x359/0x610 fs/namei.c:1958
 link_path_walk+0x5c7/0xbd0
 path_openat+0x26a/0x3000 fs/namei.c:3505
 do_filp_open+0x21c/0x460 fs/namei.c:3536
 do_sys_openat2+0x13f/0x6f0 fs/open.c:1217
 do_sys_open fs/open.c:1233 [inline]
 __do_sys_open fs/open.c:1241 [inline]
 __se_sys_open fs/open.c:1237 [inline]
 __x64_sys_open+0x221/0x270 fs/open.c:1237
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7f6223733799
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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:00007f62236d1218 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f62237c33d8 RCX: 00007f6223733799
RDX: 0000000000000002 RSI: 000000000004c07f RDI: 0000000020000300
RBP: 00007f62237c33d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f62237900fc
R13: 000000000000006e R14: 00007f622378c0f0 R15: 00007f622378e0f8
Modules linked in:
---[ end trace a0a78753631c5c2b ]---
RIP: 0010:traverse_mounts fs/namei.c:1357 [inline]
RIP: 0010:handle_mounts fs/namei.c:1477 [inline]
RIP: 0010:step_into+0x1b9/0xec0 fs/namei.c:1782
Code: 24 0f 85 cf 0a 00 00 44 8b 3a 43 80 3c 2c 00 74 0a 48 8b 7c 24 18 e8 c6 97 f3 ff 48 8b 9c 24 b8 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 c1 0a 00 00 8b 1b 89 de 81 e6 00 00 07
RSP: 0018:ffffc90000b275c0 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff88811f1913c0
RDX: ffffc90000b27bd8 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000b276f0 R08: ffffffff81b4a4ff R09: ffffed102399e765
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000164ecf
R13: dffffc0000000000 R14: ffffc90000b27ba0 R15: 0000000000000011
FS:  00007f62236d16c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005598655a1008 CR3: 0000000118682000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	24 0f                	and    $0xf,%al
   2:	85 cf                	test   %ecx,%edi
   4:	0a 00                	or     (%rax),%al
   6:	00 44 8b 3a          	add    %al,0x3a(%rbx,%rcx,4)
   a:	43 80 3c 2c 00       	cmpb   $0x0,(%r12,%r13,1)
   f:	74 0a                	je     0x1b
  11:	48 8b 7c 24 18       	mov    0x18(%rsp),%rdi
  16:	e8 c6 97 f3 ff       	call   0xfff397e1
  1b:	48 8b 9c 24 b8 00 00 	mov    0xb8(%rsp),%rbx
  22:	00
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 c1 0a 00 00    	jne    0xaf8
  37:	8b 1b                	mov    (%rbx),%ebx
  39:	89 de                	mov    %ebx,%esi
  3b:	81                   	.byte 0x81
  3c:	e6 00                	out    %al,$0x0
  3e:	00 07                	add    %al,(%rdi)

Crashes (159):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/03 19:03 android13-5.10-lts d3c4d815bf09 0aba2352 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/02/22 21:32 android13-5.10-lts dd976ecce2ce 8d446f15 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/01/08 07:08 android13-5.10-lts f7977422e132 d0304e9c .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/01/03 16:31 android13-5.10-lts f7977422e132 fb427a07 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-10 general protection fault in step_into
2023/09/25 03:22 android13-5.10-lts a27512601c2d 0b6a67ac .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2023/09/23 08:27 android13-5.10-lts a27512601c2d 0b6a67ac .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2023/08/26 11:26 android13-5.10-lts c6a1fbd8e4aa 7ba13a15 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2023/05/14 14:41 android13-5.10-lts 43c801dc3325 2b9ba477 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2023/05/14 14:19 android13-5.10-lts 43c801dc3325 2b9ba477 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2023/05/14 14:02 android13-5.10-lts 43c801dc3325 2b9ba477 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/06/10 10:30 android13-5.10-lts d3c4d815bf09 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/06/03 18:28 android13-5.10-lts d3c4d815bf09 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/05/18 23:57 android13-5.10-lts 70b6ab09a34b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/05/17 03:33 android13-5.10-lts 70b6ab09a34b c2e07261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/05/09 05:49 android13-5.10-lts 70b6ab09a34b 20bf80e1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/05/05 23:39 android13-5.10-lts 70b6ab09a34b 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/29 10:17 android13-5.10-lts 70b6ab09a34b 27e33c58 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/29 07:08 android13-5.10-lts 70b6ab09a34b 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/28 19:14 android13-5.10-lts 70b6ab09a34b 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/25 22:07 android13-5.10-lts 70b6ab09a34b 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/25 07:42 android13-5.10-lts 70b6ab09a34b 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/25 02:32 android13-5.10-lts 70b6ab09a34b 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/24 01:33 android13-5.10-lts 70b6ab09a34b 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/21 07:45 android13-5.10-lts 8d3bb9cb3b7d af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/19 04:56 android13-5.10-lts d82f901b3eb5 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/18 22:56 android13-5.10-lts d82f901b3eb5 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/16 23:26 android13-5.10-lts 4e1bc8d8e8ae 18f6e127 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/12 11:53 android13-5.10-lts 4e1bc8d8e8ae 27de0a5c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/11 23:18 android13-5.10-lts 4e1bc8d8e8ae 95ed9ece .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/10 17:11 android13-5.10-lts 4e1bc8d8e8ae 4320ec32 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/09 23:37 android13-5.10-lts 4e1bc8d8e8ae 171ec371 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/08 00:28 android13-5.10-lts e7daca75b4c3 ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/07 14:00 android13-5.10-lts e7daca75b4c3 ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/05 06:36 android13-5.10-lts e7daca75b4c3 0ee3535e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/05 04:52 android13-5.10-lts e7daca75b4c3 0ee3535e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/04 03:16 android13-5.10-lts e7daca75b4c3 51c4dcff .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/03 14:47 android13-5.10-lts e7daca75b4c3 7925100d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/03 12:38 android13-5.10-lts e7daca75b4c3 7925100d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/03 10:47 android13-5.10-lts e7daca75b4c3 7925100d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/02 19:35 android13-5.10-lts e7daca75b4c3 eb2966c4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/02 09:52 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/02 08:14 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/02 04:12 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/02 01:27 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/02 00:11 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/01 21:42 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/01 16:31 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/01 11:53 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/04/01 08:50 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/03/31 23:09 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/03/31 21:07 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/03/31 14:44 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/03/30 20:25 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/03/30 12:10 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/03/30 07:11 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/03/30 05:52 android13-5.10-lts e7daca75b4c3 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/03/30 00:41 android13-5.10-lts e7daca75b4c3 c52bcb23 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/03/29 20:31 android13-5.10-lts e7daca75b4c3 c52bcb23 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2024/03/29 18:05 android13-5.10-lts e7daca75b4c3 c52bcb23 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
2023/05/14 13:45 android13-5.10-lts 43c801dc3325 2b9ba477 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10 general protection fault in step_into
* Struck through repros no longer work on HEAD.