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general protection fault in btrfs_orphan_cleanup

Status: upstream: reported C repro on 2023/04/28 06:01
Labels: btrfs (incorrect?)
Reported-by: syzbot+2e15a1e4284bf8517741@syzkaller.appspotmail.com
First crash: 34d, last: 2d00h

Cause bisection: failed (error log, bisect log)
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [btrfs?] general protection fault in btrfs_orphan_cleanup 0 (2) 2023/04/30 06:42

Sample crash report:
general protection fault, probably for non-canonical address 0xdffffc000000001a: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000000d0-0x00000000000000d7]
CPU: 0 PID: 5860 Comm: syz-executor269 Not tainted 6.3.0-syzkaller-11301-g1ae78a14516b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:iput+0x40/0x8f0 fs/inode.c:1763
Code: 06 2a 91 ff 48 85 ed 0f 84 56 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 9d d8 00 00 00 48 89 d9 48 c1 e9 03 48 89 4c 24 08 <80> 3c 01 00 74 08 48 89 df e8 f2 f4 e8 ff 48 89 1c 24 48 8b 1b 48
RSP: 0018:ffffc9000aa87a10 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 00000000000000d6 RCX: 000000000000001a
RDX: 0000000000000000 RSI: 0000000000000004 RDI: fffffffffffffffe
RBP: fffffffffffffffe R08: dffffc0000000000 R09: ffffed100dab82ef
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88806e6e0000
R13: fffffffffffffffc R14: 00000000fffffffe R15: dffffc0000000000
FS:  00007fbc4e794700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbc55c5d908 CR3: 0000000071785000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_orphan_cleanup+0xa55/0xcf0 fs/btrfs/inode.c:3629
 create_snapshot+0x520/0x7e0 fs/btrfs/ioctl.c:852
 btrfs_mksubvol+0x5d0/0x750 fs/btrfs/ioctl.c:994
 btrfs_mksnapshot+0xb5/0xf0 fs/btrfs/ioctl.c:1040
 __btrfs_ioctl_snap_create+0x338/0x450 fs/btrfs/ioctl.c:1293
 btrfs_ioctl_snap_create+0x136/0x190 fs/btrfs/ioctl.c:1320
 btrfs_ioctl+0xbbc/0xd40
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fbc55c0cda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 15 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:00007fbc4e7942f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fbc55c987f0 RCX: 00007fbc55c0cda9
RDX: 0000000020001380 RSI: 0000000050009401 RDI: 0000000000000007
RBP: 00007fbc55c645ec R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e
R13: 00007fbc55c635f0 R14: 697265765f666572 R15: 00007fbc55c987f8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:iput+0x40/0x8f0 fs/inode.c:1763
Code: 06 2a 91 ff 48 85 ed 0f 84 56 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 9d d8 00 00 00 48 89 d9 48 c1 e9 03 48 89 4c 24 08 <80> 3c 01 00 74 08 48 89 df e8 f2 f4 e8 ff 48 89 1c 24 48 8b 1b 48
RSP: 0018:ffffc9000aa87a10 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 00000000000000d6 RCX: 000000000000001a
RDX: 0000000000000000 RSI: 0000000000000004 RDI: fffffffffffffffe
RBP: fffffffffffffffe R08: dffffc0000000000 R09: ffffed100dab82ef
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88806e6e0000
R13: fffffffffffffffc R14: 00000000fffffffe R15: dffffc0000000000
FS:  00007fbc4e794700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005578470fb7a0 CR3: 0000000071785000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	2a 91 ff 48 85 ed    	sub    -0x127ab701(%rcx),%dl
   6:	0f 84 56 03 00 00    	je     0x362
   c:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  13:	fc ff df
  16:	48 8d 9d d8 00 00 00 	lea    0xd8(%rbp),%rbx
  1d:	48 89 d9             	mov    %rbx,%rcx
  20:	48 c1 e9 03          	shr    $0x3,%rcx
  24:	48 89 4c 24 08       	mov    %rcx,0x8(%rsp)
* 29:	80 3c 01 00          	cmpb   $0x0,(%rcx,%rax,1) <-- trapping instruction
  2d:	74 08                	je     0x37
  2f:	48 89 df             	mov    %rbx,%rdi
  32:	e8 f2 f4 e8 ff       	callq  0xffe8f529
  37:	48 89 1c 24          	mov    %rbx,(%rsp)
  3b:	48 8b 1b             	mov    (%rbx),%rbx
  3e:	48                   	rex.W

Crashes (49):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Manager Title
2023/04/30 06:42 upstream 1ae78a14516b 62df2017 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/05/05 03:11 upstream 1a5304fecee5 518a39a6 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/05/30 02:06 upstream 8b817fded42d cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in btrfs_orphan_cleanup
2023/05/29 11:15 upstream e338142b39cf cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in btrfs_orphan_cleanup
2023/05/29 10:00 upstream e338142b39cf cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in btrfs_orphan_cleanup
2023/05/29 07:51 upstream 7877cb91f108 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/05/28 21:40 upstream 416839029e38 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/05/27 17:13 upstream 49572d536129 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in btrfs_orphan_cleanup
2023/05/26 15:34 upstream 9db898594c54 b40ef614 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/05/24 06:22 upstream 27e462c8fad4 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in btrfs_orphan_cleanup
2023/05/23 04:40 upstream 421ca22e3138 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in btrfs_orphan_cleanup
2023/05/21 09:02 upstream 0dd2a6fb1e34 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/05/20 18:22 upstream d635f6cc934b 4bce1a3e .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in btrfs_orphan_cleanup
2023/05/20 17:14 upstream d635f6cc934b 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/05/18 09:59 upstream 1b66c114d161 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in btrfs_orphan_cleanup
2023/05/17 17:12 upstream f1fcbaa18b28 eaac4681 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in btrfs_orphan_cleanup
2023/05/17 16:40 upstream f1fcbaa18b28 eaac4681 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in btrfs_orphan_cleanup
2023/05/17 08:21 upstream f1fcbaa18b28 11c89444 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/05/17 00:47 upstream f1fcbaa18b28 11c89444 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/05/16 11:24 upstream f1fcbaa18b28 71b00cfb .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/05/14 09:10 upstream d4d58949a6ea 2b9ba477 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/05/14 00:51 upstream d4d58949a6ea 2b9ba477 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in btrfs_orphan_cleanup
2023/05/10 07:57 upstream 16a8829130ca 1964022b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in btrfs_orphan_cleanup
2023/05/10 07:51 upstream 1dc3731daf1f 1964022b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in btrfs_orphan_cleanup
2023/05/09 10:55 upstream ba0ad6ed89fd f4168103 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in btrfs_orphan_cleanup
2023/05/07 17:31 upstream fc4354c6e5c2 90c93c40 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in btrfs_orphan_cleanup
2023/05/07 13:33 upstream fc4354c6e5c2 90c93c40 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in btrfs_orphan_cleanup
2023/05/05 12:56 upstream 3c4aa4434377 518a39a6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in btrfs_orphan_cleanup
2023/05/04 22:33 upstream 1a5304fecee5 518a39a6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/05/04 16:11 upstream 1a5304fecee5 518a39a6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/05/04 04:23 upstream 89b7fd5d7f3c b5918830 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in btrfs_orphan_cleanup
2023/05/02 22:15 upstream 865fdb08197e 48e0a81d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in btrfs_orphan_cleanup
2023/05/02 13:55 upstream 865fdb08197e 52d40fd2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/04/30 04:40 upstream 1ae78a14516b 62df2017 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/04/29 17:46 upstream 89d77f71f493 62df2017 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/04/28 21:18 upstream 33afd4b76393 62df2017 .config console log report info ci-qemu-upstream general protection fault in btrfs_orphan_cleanup
2023/04/28 18:34 upstream 33afd4b76393 457a6e0a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in btrfs_orphan_cleanup
2023/04/28 18:30 upstream 33afd4b76393 457a6e0a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in btrfs_orphan_cleanup
2023/04/27 18:24 upstream 6e98b09da931 6f3d6fa7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in btrfs_orphan_cleanup
2023/05/10 06:34 upstream 1dc3731daf1f 1964022b .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in btrfs_orphan_cleanup
2023/05/27 18:42 linux-next 715abedee4cd cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in btrfs_orphan_cleanup
2023/05/25 21:41 linux-next 715abedee4cd 0513b3e6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in btrfs_orphan_cleanup
2023/05/18 09:43 linux-next 715abedee4cd 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in btrfs_orphan_cleanup
2023/05/18 08:18 linux-next 715abedee4cd 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in btrfs_orphan_cleanup
2023/05/13 00:55 linux-next e922ba281a8d ecca8a24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in btrfs_orphan_cleanup
2023/05/06 19:51 linux-next 83e5775d7afd 90c93c40 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in btrfs_orphan_cleanup
2023/05/06 19:42 linux-next 83e5775d7afd 90c93c40 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in btrfs_orphan_cleanup
2023/05/06 19:41 linux-next 83e5775d7afd 90c93c40 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in btrfs_orphan_cleanup
* Struck through repros no longer work on HEAD.