syzbot


general protection fault in dtInsertEntry

Status: upstream: reported C repro on 2024/04/09 06:22
Subsystems: jfs
[Documentation on labels]
Reported-by: syzbot+bba84aef3a26fb93deb9@syzkaller.appspotmail.com
First crash: 46d, last: 1d06h
Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: BUG: unable to handle kernel NULL pointer dereference in dtInsertEntry (log)
Repro: C syz .config
  
Discussions (2)
Title Replies (including bot) Last reply
[PATCH] jfs: reserve the header and use freelist from second 3 (3) 2024/04/11 12:05
[syzbot] [jfs?] general protection fault in dtInsertEntry 0 (1) 2024/04/09 06:22
Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 general protection fault in dtInsertEntry C error 4 557d 604d 0/1 upstream: reported C repro on 2022/09/26 01:50
linux-5.15 BUG: unable to handle kernel paging request in dtInsertEntry origin:upstream C error 11 7d05h 349d 0/3 upstream: reported C repro on 2023/06/07 09:20
linux-6.1 BUG: unable to handle kernel paging request in dtInsertEntry origin:upstream C 8 8d03h 349d 0/3 upstream: reported C repro on 2023/06/07 12:26
linux-4.14 general protection fault in dtInsertEntry C 3 447d 604d 0/1 upstream: reported C repro on 2022/09/25 23:44
upstream BUG: unable to handle kernel NULL pointer dereference in dtInsertEntry jfs C error done 29 110d 603d 26/26 fixed on 2024/03/20 11:33
Last patch testing requests (1)
Created Duration User Patch Repo Result
2024/04/20 02:16 11m retest repro upstream report log

Sample crash report:
find_entry called with index >= next_index
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 5078 Comm: syz-executor132 Not tainted 6.9.0-syzkaller-01049-g8815da98e06a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:dtInsertEntry+0xd0c/0x1780 fs/jfs/jfs_dtree.c:3713
Code: 83 e6 02 31 ff e8 64 be 72 fe 83 e3 02 75 3a e8 5a bb 72 fe 48 8b 9c 24 a8 00 00 00 48 83 c3 08 48 89 d8 48 c1 e8 03 4c 89 f2 <42> 0f b6 04 30 84 c0 74 3e 89 d9 80 e1 07 38 c1 7c 35 48 89 df e8
RSP: 0018:ffffc90003def060 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff88802e97da00
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003def210 R08: ffffffff832357bc R09: 1ffff1100ed3c25b
R10: dffffc0000000000 R11: ffffed100ed3c25c R12: ffff8880769e1570
R13: dffffc0000000000 R14: dffffc0000000000 R15: 000000000000000d
FS:  00005555680ef380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564e144a9bd8 CR3: 0000000076264000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dtInsert+0xbf1/0x6b00 fs/jfs/jfs_dtree.c:891
 jfs_create+0x7ba/0xb90 fs/jfs/namei.c:137
 lookup_open fs/namei.c:3497 [inline]
 open_last_lookups fs/namei.c:3566 [inline]
 path_openat+0x1425/0x3240 fs/namei.c:3796
 do_filp_open+0x235/0x490 fs/namei.c:3826
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1406
 do_sys_open fs/open.c:1421 [inline]
 __do_sys_openat fs/open.c:1437 [inline]
 __se_sys_openat fs/open.c:1432 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1432
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5886e72639
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd2f3a43a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ffd2f3a4588 RCX: 00007f5886e72639
RDX: 000000000000275a RSI: 0000000020000000 RDI: 00000000ffffff9c
RBP: 00007f5886eeb610 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd2f3a4578 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dtInsertEntry+0xd0c/0x1780 fs/jfs/jfs_dtree.c:3713
Code: 83 e6 02 31 ff e8 64 be 72 fe 83 e3 02 75 3a e8 5a bb 72 fe 48 8b 9c 24 a8 00 00 00 48 83 c3 08 48 89 d8 48 c1 e8 03 4c 89 f2 <42> 0f b6 04 30 84 c0 74 3e 89 d9 80 e1 07 38 c1 7c 35 48 89 df e8
RSP: 0018:ffffc90003def060 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff88802e97da00
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003def210 R08: ffffffff832357bc R09: 1ffff1100ed3c25b
R10: dffffc0000000000 R11: ffffed100ed3c25c R12: ffff8880769e1570
R13: dffffc0000000000 R14: dffffc0000000000 R15: 000000000000000d
FS:  00005555680ef380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564e144a9bd8 CR3: 0000000076264000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	83 e6 02             	and    $0x2,%esi
   3:	31 ff                	xor    %edi,%edi
   5:	e8 64 be 72 fe       	call   0xfe72be6e
   a:	83 e3 02             	and    $0x2,%ebx
   d:	75 3a                	jne    0x49
   f:	e8 5a bb 72 fe       	call   0xfe72bb6e
  14:	48 8b 9c 24 a8 00 00 	mov    0xa8(%rsp),%rbx
  1b:	00
  1c:	48 83 c3 08          	add    $0x8,%rbx
  20:	48 89 d8             	mov    %rbx,%rax
  23:	48 c1 e8 03          	shr    $0x3,%rax
  27:	4c 89 f2             	mov    %r14,%rdx
* 2a:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	74 3e                	je     0x71
  33:	89 d9                	mov    %ebx,%ecx
  35:	80 e1 07             	and    $0x7,%cl
  38:	38 c1                	cmp    %al,%cl
  3a:	7c 35                	jl     0x71
  3c:	48 89 df             	mov    %rbx,%rdi
  3f:	e8                   	.byte 0xe8

Crashes (186):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/13 22:05 upstream 8815da98e06a 9026e142 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/05 15:51 upstream 7367539ad4b0 610f2a54 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/22 11:00 upstream ed30a4a51bb1 36c961ad .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/05 06:43 upstream fe46a7dd189e 0ee3535e .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/23 18:06 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 6a71d2909427 21339d7b .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/04/06 00:20 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 707081b61156 18ea8213 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/20 16:42 upstream eb6a9339efeb c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/20 15:35 upstream eb6a9339efeb c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/19 18:01 upstream 0450d2083be6 c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/05/19 17:12 upstream 0450d2083be6 c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/05/17 21:19 upstream ea5f6ad9ad96 a12e99e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/17 19:31 upstream ea5f6ad9ad96 a12e99e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/17 05:58 upstream 3c999d1ae3c7 c2e07261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/16 18:40 upstream 3c999d1ae3c7 ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in dtInsertEntry
2024/05/16 08:10 upstream 8c06da67d0bd ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/16 06:36 upstream 8c06da67d0bd ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/13 23:14 upstream 8815da98e06a 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/13 15:52 upstream a38297e3fb01 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/12 20:48 upstream ba16c1cf11c9 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/11 14:01 upstream cf87f46fd34d 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/11 12:37 upstream cf87f46fd34d 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/11 10:17 upstream cf87f46fd34d 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/11 03:53 upstream f4345f05c0df f7c35481 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/11 02:49 upstream f4345f05c0df f7c35481 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/10 11:06 upstream 448b3fe5a0ea de979bc2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/09 20:20 upstream 45db3ab70092 de979bc2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dtInsertEntry
2024/05/08 16:44 upstream dccb07f2914c 4cf3f9b3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/05/08 10:49 upstream dccb07f2914c 4cf3f9b3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/05/07 22:27 upstream dccb07f2914c cb2dcc0e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in dtInsertEntry
2024/05/07 20:53 upstream dccb07f2914c cb2dcc0e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/07 19:27 upstream dccb07f2914c cb2dcc0e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/05/07 15:31 upstream dccb07f2914c cb2dcc0e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/07 12:57 upstream dccb07f2914c cb2dcc0e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/07 09:19 upstream dccb07f2914c fa7a5cf0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/07 03:56 upstream dd5a440a31fa c035c6de .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dtInsertEntry
2024/05/05 21:02 upstream b9158815de52 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/05 06:10 upstream fe46a7dd189e 0ee3535e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/05/17 02:02 upstream 3c999d1ae3c7 ad5321c6 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in dtInsertEntry
2024/05/06 08:44 upstream dd5a440a31fa d884b519 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in dtInsertEntry
2024/05/19 08:51 upstream 0cc6f45cecb4 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in dtInsertEntry
2024/05/17 00:06 upstream 3c999d1ae3c7 ad5321c6 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in dtInsertEntry
2024/05/09 06:34 linux-next e7b4ef8fffac 20bf80e1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in dtInsertEntry
2024/05/07 05:26 linux-next 2b84edefcad1 c035c6de .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root UBSAN: array-index-out-of-bounds in dtInsertEntry
2024/05/20 19:59 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/19 19:54 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/19 07:07 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/18 11:05 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/17 22:47 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c a12e99e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 UBSAN: array-index-out-of-bounds in dtInsertEntry
2024/05/16 22:15 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c c2e07261 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/16 17:01 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/15 00:05 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/13 08:36 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/12 13:38 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/11 21:42 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/11 15:11 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 UBSAN: array-index-out-of-bounds in dtInsertEntry
2024/05/10 08:01 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c4d6737dc9da de979bc2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/10 05:15 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c4d6737dc9da de979bc2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/09 23:42 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c4d6737dc9da de979bc2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/09 14:17 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 1c9135d29e9e 20bf80e1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/09 10:51 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 1c9135d29e9e 20bf80e1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/09 03:38 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 1c9135d29e9e 20bf80e1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
2024/05/07 23:39 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 1c9135d29e9e cb2dcc0e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in dtInsertEntry
* Struck through repros no longer work on HEAD.