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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: 25d, last: 1h32m
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 535d 582d 0/1 upstream: reported C repro on 2022/09/26 01:50
linux-6.1 BUG: unable to handle kernel paging request in dtInsertEntry origin:upstream C 6 6d13h 328d 0/3 upstream: reported C repro on 2023/06/07 12:26
linux-4.14 general protection fault in dtInsertEntry C 3 426d 582d 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 88d 581d 26/26 fixed on 2024/03/20 11:33
linux-5.15 BUG: unable to handle kernel paging request in dtInsertEntry origin:upstream C error 1 328d 328d 0/3 upstream: reported C repro on 2023/06/07 09:20
▶ ▼ 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: 5074 Comm: syz-executor177 Not tainted 6.9.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:dtInsertEntry+0xd0c/0x1780 fs/jfs/jfs_dtree.c:3713
Code: 83 e6 02 31 ff e8 e4 4e 73 fe 83 e3 02 75 3a e8 da 4b 73 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:ffffc9000402f060 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff888022460000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000402f210 R08: ffffffff8322b48c R09: 1ffff1100d23b383
R10: dffffc0000000000 R11: ffffed100d23b384 R12: ffff8880691d9eb0
R13: ffffffffffffffff R14: dffffc0000000000 R15: 0000000000000008
FS:  0000555567673380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000066c7e0 CR3: 000000007845e000 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: 0033:0x7f44558bf639
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:00007ffcb5018af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ffcb5018cd8 RCX: 00007f44558bf639
RDX: 00000000000026e1 RSI: 0000000020000100 RDI: 00000000ffffff9c
RBP: 00007f4455938610 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffcb5018cc8 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 e4 4e 73 fe 83 e3 02 75 3a e8 da 4b 73 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:ffffc9000402f060 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff888022460000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000402f210 R08: ffffffff8322b48c R09: 1ffff1100d23b383
R10: dffffc0000000000 R11: ffffed100d23b384 R12: ffff8880691d9eb0
R13: ffffffffffffffff R14: dffffc0000000000 R15: 0000000000000008
FS:  0000555567673380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1393a08ed8 CR3: 000000007845e000 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 e4 4e 73 fe       	call   0xfe734eee
   a:	83 e3 02             	and    $0x2,%ebx
   d:	75 3a                	jne    0x49
   f:	e8 da 4b 73 fe       	call   0xfe734bee
  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 (90):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
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
2024/04/30 14:37 upstream 98369dccd2f8 27e33c58 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in dtInsertEntry
2024/04/30 12:44 upstream 98369dccd2f8 27e33c58 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dtInsertEntry
2024/04/30 07:47 upstream 9e4bc4bcae01 27e33c58 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in dtInsertEntry
2024/04/30 05:10 upstream b947cc5bf6d7 f10afd69 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/30 04:54 upstream b947cc5bf6d7 27e33c58 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dtInsertEntry
2024/04/29 23:23 upstream b947cc5bf6d7 27e33c58 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dtInsertEntry
2024/04/29 15:46 upstream e67572cd2204 27e33c58 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dtInsertEntry
2024/04/29 11:38 upstream e67572cd2204 27e33c58 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/29 08:55 upstream e67572cd2204 27e33c58 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/29 05:51 upstream e67572cd2204 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in dtInsertEntry
2024/04/29 03:14 upstream e67572cd2204 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/28 23:34 upstream 2c8159388952 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dtInsertEntry
2024/04/28 22:19 upstream 2c8159388952 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dtInsertEntry
2024/04/28 18:01 upstream 2c8159388952 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/28 10:31 upstream 5d12ed4bea43 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in dtInsertEntry
2024/04/28 04:00 upstream 5d12ed4bea43 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/04/28 01:10 upstream 5d12ed4bea43 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in dtInsertEntry
2024/04/27 18:20 upstream 5eb4573ea63d 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dtInsertEntry
2024/04/27 15:31 upstream 5eb4573ea63d 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/27 13:28 upstream 5eb4573ea63d 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/04/27 12:18 upstream 5eb4573ea63d 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/04/27 09:15 upstream 5eb4573ea63d 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dtInsertEntry
2024/04/27 08:07 upstream 5eb4573ea63d 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/04/27 07:05 upstream 5eb4573ea63d 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/04/27 05:04 upstream 5eb4573ea63d 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/04/27 05:04 upstream 5eb4573ea63d 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/04/26 22:57 upstream c942a0cd3603 059e9963 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in dtInsertEntry
2024/04/26 03:41 upstream e33c4963bf53 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in dtInsertEntry
2024/04/26 01:25 upstream e33c4963bf53 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/25 23:16 upstream e33c4963bf53 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/25 13:27 upstream e88c4cfcb7b8 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/25 06:45 upstream e88c4cfcb7b8 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/25 06:28 upstream e88c4cfcb7b8 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/25 03:08 upstream e88c4cfcb7b8 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/04/24 19:21 upstream 9d1ddab261f3 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dtInsertEntry
2024/04/24 10:42 upstream 9d1ddab261f3 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/24 10:32 upstream 9d1ddab261f3 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in dtInsertEntry
2024/04/24 10:27 upstream 9d1ddab261f3 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in dtInsertEntry
2024/04/23 22:17 upstream 71b1543c83d6 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dtInsertEntry
2024/04/23 10:55 upstream 4d2008430ce8 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/04/23 10:46 upstream 4d2008430ce8 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/04/23 07:27 upstream 4d2008430ce8 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in dtInsertEntry
2024/04/22 19:17 upstream ed30a4a51bb1 36c961ad .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
2024/04/29 22:04 upstream b947cc5bf6d7 f10afd69 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in dtInsertEntry
2024/04/28 16:44 upstream 2c8159388952 07b455f9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in dtInsertEntry
2024/04/28 15:35 upstream 2c8159388952 07b455f9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in dtInsertEntry
2024/04/23 07:26 upstream a2c63a3f3d68 21339d7b .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in dtInsertEntry
2024/04/29 01:36 linux-next bb7a2467e6be 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in dtInsertEntry
2024/04/28 19:22 linux-next bb7a2467e6be 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in dtInsertEntry
2024/04/28 09:30 linux-next bb7a2467e6be 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in dtInsertEntry
2024/04/27 16:55 linux-next bb7a2467e6be 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in dtInsertEntry
* Struck through repros no longer work on HEAD.