[syzbot] [btrfs?] general protection fault in btrfs_orphan_cleanup
15 views
Skip to first unread message
syzbot
Apr 28, 2023, 2:01:44 AM4/28/23
to c...@fb.com, dst...@suse.com, jo...@toxicpanda.com, linux...@vger.kernel.org, linux-...@vger.kernel.org, linux-...@vger.kernel.org, syzkall...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 6e98b09da931 Merge tag 'net-next-6.4' of git://git.kernel...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17699f80280000
kernel config: https://syzkaller.appspot.com/x/.config?x=5b762354749a3d5d
dashboard link: https://syzkaller.appspot.com/bug?extid=2e15a1e4284bf8517741
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/8ad082c4dcdf/disk-6e98b09d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/96565e4d870d/vmlinux-6e98b09d.xz
kernel image: https://storage.googleapis.com/syzbot-assets/cfcfe15601e5/bzImage-6e98b09d.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2e15a1...@syzkaller.appspotmail.com
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: 17330 Comm: syz-executor.2 Not tainted 6.3.0-syzkaller-07919-g6e98b09da931 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:iput+0x40/0x8f0 fs/inode.c:1764
Code: d6 80 92 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 e2 49 e9 ff 48 89 1c 24 48 8b 1b 48
RSP: 0000:ffffc90014d47a10 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 00000000000000d6 RCX: 000000000000001a
RDX: ffffc900131c3000 RSI: 000000000002326c RDI: 000000000002326d
RBP: fffffffffffffffe R08: dffffc0000000000 R09: ffffed1005547aef
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802d122000
R13: fffffffffffffffc R14: 00000000fffffffe R15: dffffc0000000000
FS: 00007f523909c700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e34428000 CR3: 0000000031e52000 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: 0033:0x7f523828c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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:00007f523909c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f52383abf80 RCX: 00007f523828c169
RDX: 00000000200000c0 RSI: 0000000050009401 RDI: 0000000000000009
RBP: 00007f52382e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe28ec0fbf R14: 00007f523909c300 R15: 0000000000022000
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:iput+0x40/0x8f0 fs/inode.c:1764
Code: d6 80 92 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 e2 49 e9 ff 48 89 1c 24 48 8b 1b 48
RSP: 0000:ffffc90014d47a10 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 00000000000000d6 RCX: 000000000000001a
RDX: ffffc900131c3000 RSI: 000000000002326c RDI: 000000000002326d
RBP: fffffffffffffffe R08: dffffc0000000000 R09: ffffed1005547aef
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802d122000
R13: fffffffffffffffc R14: 00000000fffffffe R15: dffffc0000000000
FS: 00007f523909c700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe5b93ff000 CR3: 0000000031e52000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 80 92 ff 48 85 ed 0f adcb $0xf,-0x127ab701(%rdx)
7: 84 56 03 test %dl,0x3(%rsi)
a: 00 00 add %al,(%rax)
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 e2 49 e9 ff callq 0xffe94a19
37: 48 89 1c 24 mov %rbx,(%rsp)
3b: 48 8b 1b mov (%rbx),%rbx
3e: 48 rex.W
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the bug is already fixed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to change bug's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the bug is a duplicate of another bug, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: 6e98b09da931 Merge tag 'net-next-6.4' of git://git.kernel...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17699f80280000
kernel config: https://syzkaller.appspot.com/x/.config?x=5b762354749a3d5d
dashboard link: https://syzkaller.appspot.com/bug?extid=2e15a1e4284bf8517741
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/8ad082c4dcdf/disk-6e98b09d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/96565e4d870d/vmlinux-6e98b09d.xz
kernel image: https://storage.googleapis.com/syzbot-assets/cfcfe15601e5/bzImage-6e98b09d.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2e15a1...@syzkaller.appspotmail.com
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: 17330 Comm: syz-executor.2 Not tainted 6.3.0-syzkaller-07919-g6e98b09da931 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:iput+0x40/0x8f0 fs/inode.c:1764
Code: d6 80 92 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 e2 49 e9 ff 48 89 1c 24 48 8b 1b 48
RSP: 0000:ffffc90014d47a10 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 00000000000000d6 RCX: 000000000000001a
RDX: ffffc900131c3000 RSI: 000000000002326c RDI: 000000000002326d
RBP: fffffffffffffffe R08: dffffc0000000000 R09: ffffed1005547aef
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802d122000
R13: fffffffffffffffc R14: 00000000fffffffe R15: dffffc0000000000
FS: 00007f523909c700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e34428000 CR3: 0000000031e52000 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: 0033:0x7f523828c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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:00007f523909c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f52383abf80 RCX: 00007f523828c169
RDX: 00000000200000c0 RSI: 0000000050009401 RDI: 0000000000000009
RBP: 00007f52382e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe28ec0fbf R14: 00007f523909c300 R15: 0000000000022000
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:iput+0x40/0x8f0 fs/inode.c:1764
Code: d6 80 92 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 e2 49 e9 ff 48 89 1c 24 48 8b 1b 48
RSP: 0000:ffffc90014d47a10 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 00000000000000d6 RCX: 000000000000001a
RDX: ffffc900131c3000 RSI: 000000000002326c RDI: 000000000002326d
RBP: fffffffffffffffe R08: dffffc0000000000 R09: ffffed1005547aef
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802d122000
R13: fffffffffffffffc R14: 00000000fffffffe R15: dffffc0000000000
FS: 00007f523909c700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe5b93ff000 CR3: 0000000031e52000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 80 92 ff 48 85 ed 0f adcb $0xf,-0x127ab701(%rdx)
7: 84 56 03 test %dl,0x3(%rsi)
a: 00 00 add %al,(%rax)
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 e2 49 e9 ff callq 0xffe94a19
37: 48 89 1c 24 mov %rbx,(%rsp)
3b: 48 8b 1b mov (%rbx),%rbx
3e: 48 rex.W
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the bug is already fixed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to change bug's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the bug is a duplicate of another bug, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot
Apr 30, 2023, 2:42:39 AM4/30/23
to c...@fb.com, dst...@suse.com, jo...@toxicpanda.com, linux...@vger.kernel.org, linux-...@vger.kernel.org, linux-...@vger.kernel.org, syzkall...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 1ae78a14516b Merge tag '6.4-rc-ksmbd-server-fixes' of git:..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1795c2f7c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=50dff7d7b2557ef1
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=165b28f8280000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/4818953c9914/disk-1ae78a14.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/a78b3bf3e929/vmlinux-1ae78a14.xz
kernel image: https://storage.googleapis.com/syzbot-assets/dae163980240/bzImage-1ae78a14.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/dd0e91b2ac87/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2e15a1...@syzkaller.appspotmail.com
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
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
RBP: fffffffffffffffe R08: dffffc0000000000 R09: ffffed100dab82ef
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88806e6e0000
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
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
RBP: fffffffffffffffe R08: dffffc0000000000 R09: ffffed100dab82ef
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88806e6e0000
6: 0f 84 56 03 00 00 je 0x362
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
HEAD commit: 1ae78a14516b Merge tag '6.4-rc-ksmbd-server-fixes' of git:..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1795c2f7c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=50dff7d7b2557ef1
dashboard link: https://syzkaller.appspot.com/bug?extid=2e15a1e4284bf8517741
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1255f594280000
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=165b28f8280000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/4818953c9914/disk-1ae78a14.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/a78b3bf3e929/vmlinux-1ae78a14.xz
kernel image: https://storage.googleapis.com/syzbot-assets/dae163980240/bzImage-1ae78a14.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/dd0e91b2ac87/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2e15a1...@syzkaller.appspotmail.com
general protection fault, probably for non-canonical address 0xdffffc000000001a: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000000d0-0x00000000000000d7]
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
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
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
Modules linked in:
---[ end trace 0000000000000000 ]---
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
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
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
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
37: 48 89 1c 24 mov %rbx,(%rsp)
3b: 48 8b 1b mov (%rbx),%rbx
3e: 48 rex.W
---
If you want syzbot to run the reproducer, reply with:
3b: 48 8b 1b mov (%rbx),%rbx
3e: 48 rex.W
---
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
syzbot
Jan 30, 2024, 1:24:09 PMJan 30
to anand...@oracle.com, bra...@kernel.org, c...@fb.com, dst...@suse.com, johannes....@wdc.com, jo...@toxicpanda.com, linux...@vger.kernel.org, linux-...@vger.kernel.org, linux-...@vger.kernel.org, syzkall...@googlegroups.com
syzbot suspects this issue was fixed by commit:
commit a1912f712188291f9d7d434fba155461f1ebef66
Author: Josef Bacik <jo...@toxicpanda.com>
Date: Wed Nov 22 17:17:55 2023 +0000
btrfs: remove code for inode_cache and recovery mount options
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=103f19fde80000
start commit: 1ae78a14516b Merge tag '6.4-rc-ksmbd-server-fixes' of git:..
git tree: upstream
#syz fix: btrfs: remove code for inode_cache and recovery mount options
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
commit a1912f712188291f9d7d434fba155461f1ebef66
Author: Josef Bacik <jo...@toxicpanda.com>
Date: Wed Nov 22 17:17:55 2023 +0000
btrfs: remove code for inode_cache and recovery mount options
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=103f19fde80000
start commit: 1ae78a14516b Merge tag '6.4-rc-ksmbd-server-fixes' of git:..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=50dff7d7b2557ef1
dashboard link: https://syzkaller.appspot.com/bug?extid=2e15a1e4284bf8517741
dashboard link: https://syzkaller.appspot.com/bug?extid=2e15a1e4284bf8517741
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1255f594280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=165b28f8280000
If the result looks correct, please mark the issue as fixed by replying with:
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=165b28f8280000
#syz fix: btrfs: remove code for inode_cache and recovery mount options
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
syzbot
Mar 7, 2024, 12:50:23 PMMar 7
to syzkall...@googlegroups.com
Auto-closing this bug as obsolete.
No recent activity, existing reproducers are no longer triggering the issue.
No recent activity, existing reproducers are no longer triggering the issue.
Reply all
Reply to author
Forward
0 new messages