[v6.1] kernel BUG in close_ctree
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syzbot
Mar 12, 2023, 10:15:52 AM3/12/23
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 1cc3fcf63192 Linux 6.1.18
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=16e1b7e4c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=ac04a15f4a80e9d0
dashboard link: https://syzkaller.appspot.com/bug?extid=3133f15a94d62fd10bd2
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/9dee98921f5a/disk-1cc3fcf6.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/713a648558bd/vmlinux-1cc3fcf6.xz
kernel image: https://storage.googleapis.com/syzbot-assets/6b9e84fcf1df/bzImage-1cc3fcf6.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3133f1...@syzkaller.appspotmail.com
assertion failed: list_empty(&fs_info->delayed_iputs), in fs/btrfs/disk-io.c:4673
------------[ cut here ]------------
kernel BUG at fs/btrfs/ctree.h:3719!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 3664 Comm: syz-executor.5 Not tainted 6.1.18-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:assertfail+0x18/0x1a fs/btrfs/ctree.h:3719
Code: 20 49 2d 8b 48 c7 c2 40 46 2d 8b e8 07 e4 ff ff 0f 0b 89 f1 48 89 fe 48 c7 c7 e0 78 2d 8b 48 c7 c2 70 4b 2d 8b e8 ed e3 ff ff <0f> 0b 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec
RSP: 0018:ffffc90004c1fb38 EFLAGS: 00010246
RAX: 0000000000000051 RBX: ffff88803a72cd58 RCX: 1772e7d3371e3400
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90004c1fce0 R08: ffffffff816e120c R09: fffff52000983f21
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88803a72c010
R13: ffff88803a72c000 R14: dffffc0000000000 R15: 0000000000000000
FS: 0000555555fdb400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3e75185058 CR3: 000000002bb8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
close_ctree+0x830/0xc35 fs/btrfs/disk-io.c:4673
generic_shutdown_super+0x130/0x340 fs/super.c:492
kill_anon_super+0x37/0x60 fs/super.c:1099
btrfs_kill_super+0x3d/0x50 fs/btrfs/super.c:2441
deactivate_locked_super+0xa0/0x110 fs/super.c:332
cleanup_mnt+0x490/0x520 fs/namespace.c:1186
task_work_run+0x246/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x60/0x2d0 kernel/entry/common.c:296
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5496e8d567
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 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:00007ffe8718e738 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f5496e8d567
RDX: 00007ffe8718e809 RSI: 000000000000000a RDI: 00007ffe8718e800
RBP: 00007ffe8718e800 R08: 00000000ffffffff R09: 00007ffe8718e5d0
R10: 0000555555fdc903 R11: 0000000000000246 R12: 00007f5496ee6b24
R13: 00007ffe8718f8c0 R14: 0000555555fdc810 R15: 00007ffe8718f900
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:assertfail+0x18/0x1a fs/btrfs/ctree.h:3719
Code: 20 49 2d 8b 48 c7 c2 40 46 2d 8b e8 07 e4 ff ff 0f 0b 89 f1 48 89 fe 48 c7 c7 e0 78 2d 8b 48 c7 c2 70 4b 2d 8b e8 ed e3 ff ff <0f> 0b 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec
RSP: 0018:ffffc90004c1fb38 EFLAGS: 00010246
RAX: 0000000000000051 RBX: ffff88803a72cd58 RCX: 1772e7d3371e3400
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90004c1fce0 R08: ffffffff816e120c R09: fffff52000983f21
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88803a72c010
R13: ffff88803a72c000 R14: dffffc0000000000 R15: 0000000000000000
FS: 0000555555fdb400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f074d5821b8 CR3: 000000002bb8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
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.
syzbot found the following issue on:
HEAD commit: 1cc3fcf63192 Linux 6.1.18
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=16e1b7e4c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=ac04a15f4a80e9d0
dashboard link: https://syzkaller.appspot.com/bug?extid=3133f15a94d62fd10bd2
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/9dee98921f5a/disk-1cc3fcf6.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/713a648558bd/vmlinux-1cc3fcf6.xz
kernel image: https://storage.googleapis.com/syzbot-assets/6b9e84fcf1df/bzImage-1cc3fcf6.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3133f1...@syzkaller.appspotmail.com
assertion failed: list_empty(&fs_info->delayed_iputs), in fs/btrfs/disk-io.c:4673
------------[ cut here ]------------
kernel BUG at fs/btrfs/ctree.h:3719!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 3664 Comm: syz-executor.5 Not tainted 6.1.18-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:assertfail+0x18/0x1a fs/btrfs/ctree.h:3719
Code: 20 49 2d 8b 48 c7 c2 40 46 2d 8b e8 07 e4 ff ff 0f 0b 89 f1 48 89 fe 48 c7 c7 e0 78 2d 8b 48 c7 c2 70 4b 2d 8b e8 ed e3 ff ff <0f> 0b 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec
RSP: 0018:ffffc90004c1fb38 EFLAGS: 00010246
RAX: 0000000000000051 RBX: ffff88803a72cd58 RCX: 1772e7d3371e3400
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90004c1fce0 R08: ffffffff816e120c R09: fffff52000983f21
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88803a72c010
R13: ffff88803a72c000 R14: dffffc0000000000 R15: 0000000000000000
FS: 0000555555fdb400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3e75185058 CR3: 000000002bb8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
close_ctree+0x830/0xc35 fs/btrfs/disk-io.c:4673
generic_shutdown_super+0x130/0x340 fs/super.c:492
kill_anon_super+0x37/0x60 fs/super.c:1099
btrfs_kill_super+0x3d/0x50 fs/btrfs/super.c:2441
deactivate_locked_super+0xa0/0x110 fs/super.c:332
cleanup_mnt+0x490/0x520 fs/namespace.c:1186
task_work_run+0x246/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x60/0x2d0 kernel/entry/common.c:296
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5496e8d567
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 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:00007ffe8718e738 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f5496e8d567
RDX: 00007ffe8718e809 RSI: 000000000000000a RDI: 00007ffe8718e800
RBP: 00007ffe8718e800 R08: 00000000ffffffff R09: 00007ffe8718e5d0
R10: 0000555555fdc903 R11: 0000000000000246 R12: 00007f5496ee6b24
R13: 00007ffe8718f8c0 R14: 0000555555fdc810 R15: 00007ffe8718f900
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:assertfail+0x18/0x1a fs/btrfs/ctree.h:3719
Code: 20 49 2d 8b 48 c7 c2 40 46 2d 8b e8 07 e4 ff ff 0f 0b 89 f1 48 89 fe 48 c7 c7 e0 78 2d 8b 48 c7 c2 70 4b 2d 8b e8 ed e3 ff ff <0f> 0b 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec
RSP: 0018:ffffc90004c1fb38 EFLAGS: 00010246
RAX: 0000000000000051 RBX: ffff88803a72cd58 RCX: 1772e7d3371e3400
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90004c1fce0 R08: ffffffff816e120c R09: fffff52000983f21
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88803a72c010
R13: ffff88803a72c000 R14: dffffc0000000000 R15: 0000000000000000
FS: 0000555555fdb400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f074d5821b8 CR3: 000000002bb8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
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.
syzbot
Mar 13, 2023, 5:19:51 PM3/13/23
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 2ddbd0f967b3 Linux 5.15.102
syzbot found the following issue on:
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=152d2ed4c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=d6af46e4bd7d6a2f
dashboard link: https://syzkaller.appspot.com/bug?extid=d36a7f58c8db09c4609e
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
vmlinux: https://storage.googleapis.com/syzbot-assets/4d06a9b2ddaf/vmlinux-2ddbd0f9.xz
kernel image: https://storage.googleapis.com/syzbot-assets/0921009430c0/Image-2ddbd0f9.gz.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
assertion failed: list_empty(&fs_info->trans_list), in fs/btrfs/disk-io.c:4468
------------[ cut here ]------------
kernel BUG at fs/btrfs/ctree.h:3475!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4108 Comm: syz-executor.3 Not tainted 5.15.102-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : assertfail+0x28/0x2c fs/btrfs/ctree.h:3474
lr : assertfail+0x28/0x2c fs/btrfs/ctree.h:3474
sp : ffff80001d2377f0
x29: ffff80001d2377f0 x28: 1fffe000220e3a5b x27: dfff800000000000
x26: ffff700003a46f04 x25: 1fffe000220e38d6 x24: 1fffe000220e3a1f
x23: ffff00011071ccb8 x22: ffff00011071c6b0 x21: ffff00011071d0f8
x20: ffff00011071c010 x19: ffff00011071c000 x18: 0000000000000001
x17: ff808000083386a0 x16: ffff800011a080c4 x15: ffff8000083386a0
x14: 00000000ffffffff x13: ffffffffffffffff x12: 0000000000000000
x11: ff80800008330148 x10: 0000000000000000 x9 : a037a0caf164c000
x8 : a037a0caf164c000 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001d236f58 x4 : ffff800014aa0700 x3 : ffff80000a9bcc40
x2 : ffff0001b4802d10 x1 : 0000000100000000 x0 : 000000000000004e
Call trace:
assertfail+0x28/0x2c fs/btrfs/ctree.h:3474
close_ctree+0x76c/0x860 fs/btrfs/disk-io.c:4468
btrfs_put_super+0x40/0x50 fs/btrfs/super.c:340
generic_shutdown_super+0x130/0x29c fs/super.c:466
kill_anon_super+0x4c/0x74 fs/super.c:1058
btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2393
deactivate_locked_super+0xb8/0x13c fs/super.c:335
deactivate_super+0x108/0x128 fs/super.c:366
cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143
__cleanup_mnt+0x20/0x30 fs/namespace.c:1150
task_work_run+0x130/0x1e4 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946
prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:597
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
el0t_64_sync+0x1a0/0x1a4 <unknown>:584
Code: 91358000 f0002962 91118042 97fff928 (d4210000)
---[ end trace 921c1823c321350c ]---
syzbot
Mar 13, 2023, 5:41:57 PM3/13/23
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 2ddbd0f967b3 Linux 5.15.102
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1169a742c80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=172d6152c80000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/d46a989959b6/disk-2ddbd0f9.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/4d06a9b2ddaf/vmlinux-2ddbd0f9.xz
kernel image: https://storage.googleapis.com/syzbot-assets/0921009430c0/Image-2ddbd0f9.gz.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/2c6e0e2112a2/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+d36a7f...@syzkaller.appspotmail.com
BTRFS info (device loop0): has skinny extents
BTRFS info (device loop0): enabling ssd optimizations
x29: ffff80001c797890 x28: 1fffe0001ba7925b x27: dfff800000000000
x26: ffff7000038f2f18 x25: 1fffe0001ba790d6 x24: 1fffe0001ba7921f
x23: ffff0000dd3c8cb8 x22: ffff0000dd3c86b0 x21: ffff0000dd3c90f8
x20: ffff0000dd3c8010 x19: ffff0000dd3c8000 x18: 0000000000000001
x8 : bc5de747ae386100 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001c796ff8 x4 : ffff800014aa0700 x3 : ffff80000a9bcc40
x2 : ffff0001b47e2d10 x1 : 0000000100000000 x0 : 000000000000004e
do_exit+0x55c/0x1c20 kernel/exit.c:872
do_group_exit+0x110/0x268 kernel/exit.c:994
__do_sys_exit_group kernel/exit.c:1005 [inline]
__se_sys_exit_group kernel/exit.c:1003 [inline]
__wake_up_parent+0x0/0x60 kernel/exit.c:1003
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
HEAD commit: 2ddbd0f967b3 Linux 5.15.102
git tree: linux-5.15.y
kernel config: https://syzkaller.appspot.com/x/.config?x=d6af46e4bd7d6a2f
dashboard link: https://syzkaller.appspot.com/bug?extid=d36a7f58c8db09c4609e
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13d1b7e4c80000
dashboard link: https://syzkaller.appspot.com/bug?extid=d36a7f58c8db09c4609e
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=172d6152c80000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/d46a989959b6/disk-2ddbd0f9.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/4d06a9b2ddaf/vmlinux-2ddbd0f9.xz
kernel image: https://storage.googleapis.com/syzbot-assets/0921009430c0/Image-2ddbd0f9.gz.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+d36a7f...@syzkaller.appspotmail.com
BTRFS info (device loop0): enabling ssd optimizations
assertion failed: list_empty(&fs_info->trans_list), in fs/btrfs/disk-io.c:4468
------------[ cut here ]------------
kernel BUG at fs/btrfs/ctree.h:3475!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4058 Comm: syz-executor234 Not tainted 5.15.102-syzkaller #0
------------[ cut here ]------------
kernel BUG at fs/btrfs/ctree.h:3475!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
Modules linked in:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : assertfail+0x28/0x2c fs/btrfs/ctree.h:3474
lr : assertfail+0x28/0x2c fs/btrfs/ctree.h:3474
sp : ffff80001c797890
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : assertfail+0x28/0x2c fs/btrfs/ctree.h:3474
lr : assertfail+0x28/0x2c fs/btrfs/ctree.h:3474
x29: ffff80001c797890 x28: 1fffe0001ba7925b x27: dfff800000000000
x26: ffff7000038f2f18 x25: 1fffe0001ba790d6 x24: 1fffe0001ba7921f
x23: ffff0000dd3c8cb8 x22: ffff0000dd3c86b0 x21: ffff0000dd3c90f8
x20: ffff0000dd3c8010 x19: ffff0000dd3c8000 x18: 0000000000000001
x17: ff808000083386a0 x16: ffff800011a080c4 x15: ffff8000083386a0
x14: 00000000ffffffff x13: ffffffffffffffff x12: 0000000000000000
x11: ff80800008330148 x10: 0000000000000000 x9 : bc5de747ae386100
x14: 00000000ffffffff x13: ffffffffffffffff x12: 0000000000000000
x8 : bc5de747ae386100 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001c796ff8 x4 : ffff800014aa0700 x3 : ffff80000a9bcc40
x2 : ffff0001b47e2d10 x1 : 0000000100000000 x0 : 000000000000004e
Call trace:
assertfail+0x28/0x2c fs/btrfs/ctree.h:3474
close_ctree+0x76c/0x860 fs/btrfs/disk-io.c:4468
btrfs_put_super+0x40/0x50 fs/btrfs/super.c:340
generic_shutdown_super+0x130/0x29c fs/super.c:466
kill_anon_super+0x4c/0x74 fs/super.c:1058
btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2393
deactivate_locked_super+0xb8/0x13c fs/super.c:335
deactivate_super+0x108/0x128 fs/super.c:366
cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143
__cleanup_mnt+0x20/0x30 fs/namespace.c:1150
task_work_run+0x130/0x1e4 kernel/task_work.c:164
exit_task_work include/linux/task_work.h:32 [inline]
assertfail+0x28/0x2c fs/btrfs/ctree.h:3474
close_ctree+0x76c/0x860 fs/btrfs/disk-io.c:4468
btrfs_put_super+0x40/0x50 fs/btrfs/super.c:340
generic_shutdown_super+0x130/0x29c fs/super.c:466
kill_anon_super+0x4c/0x74 fs/super.c:1058
btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2393
deactivate_locked_super+0xb8/0x13c fs/super.c:335
deactivate_super+0x108/0x128 fs/super.c:366
cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143
__cleanup_mnt+0x20/0x30 fs/namespace.c:1150
task_work_run+0x130/0x1e4 kernel/task_work.c:164
do_exit+0x55c/0x1c20 kernel/exit.c:872
do_group_exit+0x110/0x268 kernel/exit.c:994
__do_sys_exit_group kernel/exit.c:1005 [inline]
__se_sys_exit_group kernel/exit.c:1003 [inline]
__wake_up_parent+0x0/0x60 kernel/exit.c:1003
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
el0t_64_sync+0x1a0/0x1a4 <unknown>:584
Code: 91358000 f0002962 91118042 97fff928 (d4210000)
---[ end trace 05b4925ee61d3311 ]---
el0t_64_sync+0x1a0/0x1a4 <unknown>:584
Code: 91358000 f0002962 91118042 97fff928 (d4210000)
syzbot
Mar 13, 2023, 6:02:52 PM3/13/23
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 6449a0ba6843 Linux 6.1.19
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=11415006c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=75eadb21ef1208e4
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=162e098ac80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11f94d66c80000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/dc227ecd3e21/disk-6449a0ba.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1d08e21b50c2/vmlinux-6449a0ba.xz
kernel image: https://storage.googleapis.com/syzbot-assets/71a43f2c4d2c/Image-6449a0ba.gz.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/d68ce2568849/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3133f1...@syzkaller.appspotmail.com
assertion failed: !found, in fs/btrfs/disk-io.c:4550
Modules linked in:
CPU: 1 PID: 4308 Comm: syz-executor374 Not tainted 6.1.19-syzkaller #0
lr : assertfail+0x28/0x2c fs/btrfs/ctree.h:3718
sp : ffff80001dd177b0
x29: ffff80001dd177b0 x28: ffff0000d7f86028 x27: dfff800000000000
x26: ffff0000d7f86000 x25: 1ffff00003ba2f0c x24: ffff80001dd17880
x23: ffff80001dd17860 x22: 1ffff00003ba2f10 x21: ffff0000d7c28ce8
x20: ffff80001dd17840 x19: ffff0000d7c28000 x18: ffff80001dd17180
x17: 0000000000000000 x16: ffff800012253e1c x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000001
x11: ff8080000834cb14 x10: 0000000000000000 x9 : 235a361e1c9a1700
x8 : 235a361e1c9a1700 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001dd170b8 x4 : ffff800015813880 x3 : ffff80000ab36c2c
x2 : ffff0001b45a1cd0 x1 : 0000000100000000 x0 : 0000000000000034
Call trace:
assertfail+0x28/0x2c fs/btrfs/ctree.h:3718
warn_about_uncommitted_trans fs/btrfs/disk-io.c:4550 [inline]
close_ctree+0xa38/0xad8 fs/btrfs/disk-io.c:4706
btrfs_put_super+0x40/0x50 fs/btrfs/super.c:394
generic_shutdown_super+0x130/0x328 fs/super.c:492
kill_anon_super+0x4c/0x74 fs/super.c:1099
btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2441
deactivate_locked_super+0xac/0x124 fs/super.c:332
deactivate_super+0xf0/0x110 fs/super.c:363
cleanup_mnt+0x394/0x41c fs/namespace.c:1186
__cleanup_mnt+0x20/0x30 fs/namespace.c:1193
task_work_run+0x240/0x2f0 kernel/task_work.c:179
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0x554/0x1a88 kernel/exit.c:869
do_group_exit+0x194/0x22c kernel/exit.c:1019
__do_sys_exit_group kernel/exit.c:1030 [inline]
__se_sys_exit_group kernel/exit.c:1028 [inline]
__wake_up_parent+0x0/0x60 kernel/exit.c:1028
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
Code: 91198000 b0002b22 912a0042 97fff921 (d4210000)
HEAD commit: 6449a0ba6843 Linux 6.1.19
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=11415006c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=75eadb21ef1208e4
dashboard link: https://syzkaller.appspot.com/bug?extid=3133f15a94d62fd10bd2
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
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=162e098ac80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11f94d66c80000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/dc227ecd3e21/disk-6449a0ba.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1d08e21b50c2/vmlinux-6449a0ba.xz
kernel image: https://storage.googleapis.com/syzbot-assets/71a43f2c4d2c/Image-6449a0ba.gz.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/d68ce2568849/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3133f1...@syzkaller.appspotmail.com
BTRFS info (device loop0): enabling ssd optimizations
BTRFS warning (device loop0): transaction 9 (with 0 dirty metadata bytes) is not committed
assertion failed: !found, in fs/btrfs/disk-io.c:4550
------------[ cut here ]------------
kernel BUG at fs/btrfs/ctree.h:3719!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
kernel BUG at fs/btrfs/ctree.h:3719!
Modules linked in:
CPU: 1 PID: 4308 Comm: syz-executor374 Not tainted 6.1.19-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : assertfail+0x28/0x2c fs/btrfs/ctree.h:3718
lr : assertfail+0x28/0x2c fs/btrfs/ctree.h:3718
sp : ffff80001dd177b0
x29: ffff80001dd177b0 x28: ffff0000d7f86028 x27: dfff800000000000
x26: ffff0000d7f86000 x25: 1ffff00003ba2f0c x24: ffff80001dd17880
x23: ffff80001dd17860 x22: 1ffff00003ba2f10 x21: ffff0000d7c28ce8
x20: ffff80001dd17840 x19: ffff0000d7c28000 x18: ffff80001dd17180
x17: 0000000000000000 x16: ffff800012253e1c x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000001
x11: ff8080000834cb14 x10: 0000000000000000 x9 : 235a361e1c9a1700
x8 : 235a361e1c9a1700 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001dd170b8 x4 : ffff800015813880 x3 : ffff80000ab36c2c
x2 : ffff0001b45a1cd0 x1 : 0000000100000000 x0 : 0000000000000034
Call trace:
assertfail+0x28/0x2c fs/btrfs/ctree.h:3718
warn_about_uncommitted_trans fs/btrfs/disk-io.c:4550 [inline]
close_ctree+0xa38/0xad8 fs/btrfs/disk-io.c:4706
btrfs_put_super+0x40/0x50 fs/btrfs/super.c:394
generic_shutdown_super+0x130/0x328 fs/super.c:492
kill_anon_super+0x4c/0x74 fs/super.c:1099
btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2441
deactivate_locked_super+0xac/0x124 fs/super.c:332
deactivate_super+0xf0/0x110 fs/super.c:363
cleanup_mnt+0x394/0x41c fs/namespace.c:1186
__cleanup_mnt+0x20/0x30 fs/namespace.c:1193
task_work_run+0x240/0x2f0 kernel/task_work.c:179
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0x554/0x1a88 kernel/exit.c:869
do_group_exit+0x194/0x22c kernel/exit.c:1019
__do_sys_exit_group kernel/exit.c:1030 [inline]
__se_sys_exit_group kernel/exit.c:1028 [inline]
__wake_up_parent+0x0/0x60 kernel/exit.c:1028
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
Code: 91198000 b0002b22 912a0042 97fff921 (d4210000)
syzbot
Oct 11, 2023, 10:39:29 PM10/11/23
to syzkaller...@googlegroups.com
syzbot suspects this issue could be fixed by backporting the following commit:
commit 4490e803e1fe9fab8db5025e44e23b55df54078b
git tree: upstream
Author: Filipe Manana <fdma...@suse.com>
Date: Wed Jul 26 15:56:57 2023 +0000
btrfs: don't start transaction when joining with TRANS_JOIN_NOSTART
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=100a5316680000
kernel config: https://syzkaller.appspot.com/x/.config?x=6f83fab0469f5de7
dashboard link: https://syzkaller.appspot.com/bug?extid=d36a7f58c8db09c4609e
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11b0bdd1c80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10965f85c80000
Please keep in mind that other backports might be required as well.
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
commit 4490e803e1fe9fab8db5025e44e23b55df54078b
git tree: upstream
Author: Filipe Manana <fdma...@suse.com>
Date: Wed Jul 26 15:56:57 2023 +0000
btrfs: don't start transaction when joining with TRANS_JOIN_NOSTART
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=100a5316680000
kernel config: https://syzkaller.appspot.com/x/.config?x=6f83fab0469f5de7
dashboard link: https://syzkaller.appspot.com/bug?extid=d36a7f58c8db09c4609e
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11b0bdd1c80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10965f85c80000
Please keep in mind that other backports might be required as well.
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
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