Hello,
syzbot found the following issue on:
HEAD commit: 307e14c03906 Merge tag '6.3-rc-smb3-client-fixes' of git:/..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=12974f28c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=636897a0dac3d81e
dashboard link: https://syzkaller.appspot.com/bug?extid=d62e6bd2a2d05103d105
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/970f2d144bf1/disk-307e14c0.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1ba101847b5b/vmlinux-307e14c0.xz
kernel image: https://storage.googleapis.com/syzbot-assets/21e98f0fe45e/bzImage-307e14c0.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: [email protected]
loop3: detected capacity change from 0 to 4096
------------[ cut here ]------------
kernel BUG at fs/ntfs/malloc.h:31!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 16279 Comm: syz-executor.3 Not tainted 6.2.0-syzkaller-06742-g307e14c03906 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
RIP: 0010:__ntfs_malloc fs/ntfs/malloc.h:31 [inline]
RIP: 0010:ntfs_malloc_nofs+0xfd/0x100 fs/ntfs/malloc.h:52
Code: 17 e8 87 f7 c4 fe 48 89 df be 42 0c 00 00 5b 41 5e 41 5f e9 c5 df 0d ff e8 70 f7 c4 fe 31 c0 5b 41 5e 41 5f c3 e8 63 f7 c4 fe <0f> 0b 90 66 0f 1f 00 55 41 57 41 56 41 55 41 54 53 49 89 fe 49 bc
RSP: 0018:ffffc90027107818 EFLAGS: 00010283
RAX: ffffffff82c7a8ad RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000ce23000 RSI: 0000000000005237 RDI: 0000000000005238
RBP: ffff88803a9e44a0 R08: ffffffff82c7a7dd R09: ffffed10105f8a5b
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff888082fc55a0 R14: ffff88803a9e44ab R15: dffffc0000000000
FS: 00007f447fd87700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f54efde5000 CR3: 000000002a9b8000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
ntfs_read_locked_inode+0x1fd5/0x49c0 fs/ntfs/inode.c:703
ntfs_iget+0x113/0x190 fs/ntfs/inode.c:177
load_and_init_mft_mirror fs/ntfs/super.c:1027 [inline]
load_system_files+0x100/0x4840 fs/ntfs/super.c:1772
ntfs_fill_super+0x19b4/0x2bd0 fs/ntfs/super.c:2892
mount_bdev+0x271/0x3a0 fs/super.c:1371
legacy_get_tree+0xef/0x190 fs/fs_context.c:610
vfs_get_tree+0x8c/0x270 fs/super.c:1501
do_new_mount+0x28f/0xae0 fs/namespace.c:3031
do_mount fs/namespace.c:3374 [inline]
__do_sys_mount fs/namespace.c:3583 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3560
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: 0033:0x7f447f08d62a
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 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:00007f447fd86f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 000000000001e70f RCX: 00007f447f08d62a
RDX: 0000000020000080 RSI: 0000000020000000 RDI: 00007f447fd86fe0
RBP: 00007f447fd87020 R08: 00007f447fd87020 R09: 0000000000000005
R10: 0000000000000005 R11: 0000000000000202 R12: 0000000020000080
R13: 0000000020000000 R14: 00007f447fd86fe0 R15: 0000000020001400
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__ntfs_malloc fs/ntfs/malloc.h:31 [inline]
RIP: 0010:ntfs_malloc_nofs+0xfd/0x100 fs/ntfs/malloc.h:52
Code: 17 e8 87 f7 c4 fe 48 89 df be 42 0c 00 00 5b 41 5e 41 5f e9 c5 df 0d ff e8 70 f7 c4 fe 31 c0 5b 41 5e 41 5f c3 e8 63 f7 c4 fe <0f> 0b 90 66 0f 1f 00 55 41 57 41 56 41 55 41 54 53 49 89 fe 49 bc
RSP: 0018:ffffc90027107818 EFLAGS: 00010283
RAX: ffffffff82c7a8ad RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000ce23000 RSI: 0000000000005237 RDI: 0000000000005238
RBP: ffff88803a9e44a0 R08: ffffffff82c7a7dd R09: ffffed10105f8a5b
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff888082fc55a0 R14: ffff88803a9e44ab R15: dffffc0000000000
FS: 00007f447fd87700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcdee130000 CR3: 000000002a9b8000 CR4: 00000000003506f0
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 [email protected].
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syzbot has found a reproducer for the following issue on:
HEAD commit: d295b66a7b66 Merge tag 'fsnotify_for_v6.4-rc2' of git://gi..
git tree: upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=1438109e280000
kernel config: https://syzkaller.appspot.com/x/.config?x=38526bf24c8d961b
dashboard link: https://syzkaller.appspot.com/bug?extid=d62e6bd2a2d05103d105
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=16ba9dec280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12ef95fa280000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/95f1878df2f4/disk-d295b66a.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/6d18d65ddcb5/vmlinux-d295b66a.xz
kernel image: https://storage.googleapis.com/syzbot-assets/6a59b1fdff8e/bzImage-d295b66a.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/eee641006b52/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: [email protected]
loop0: detected capacity change from 0 to 190
ntfs: (device loop0): is_boot_sector_ntfs(): Invalid boot sector checksum.
ntfs: (device loop0): map_mft_record_page(): Mft record 0x1 is corrupt. Run chkdsk.
ntfs: (device loop0): map_mft_record(): Failed with error code 5.
ntfs: (device loop0): ntfs_read_locked_inode(): Failed with error code -5. Marking corrupt inode 0x1 as bad. Run chkdsk.
ntfs: (device loop0): load_system_files(): Failed to load $MFTMirr. Mounting read-only. Run ntfsfix and/or chkdsk.
------------[ cut here ]------------
kernel BUG at fs/ntfs/malloc.h:31!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4993 Comm: syz-executor320 Not tainted 6.4.0-rc1-syzkaller-00025-gd295b66a7b66 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:__ntfs_malloc fs/ntfs/malloc.h:31 [inline]
RIP: 0010:ntfs_malloc_nofs+0xfd/0x100 fs/ntfs/malloc.h:52
Code: 17 e8 d7 1e c7 fe 48 89 df be 42 0c 00 00 5b 41 5e 41 5f e9 a5 f2 10 ff e8 c0 1e c7 fe 31 c0 5b 41 5e 41 5f c3 e8 b3 1e c7 fe <0f> 0b 90 66 0f 1f 00 55 41 57 41 56 41 55 41 54 53 49 89 fe 49 bc
RSP: 0018:ffffc90003a3f818 EFLAGS: 00010293
RAX: ffffffff82c4488d RBX: 0000000000000000 RCX: ffff88802476bb80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff888073a05118 R08: ffffffff82c447bd R09: ffffed100e9c5323
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff888074e29be0 R14: ffff888073a05147 R15: dffffc0000000000
FS: 000055555752e300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f02336e6000 CR3: 000000007a170000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
ntfs_read_locked_inode+0x1fd5/0x49c0 fs/ntfs/inode.c:703
ntfs_iget+0x113/0x190 fs/ntfs/inode.c:177
load_and_init_upcase fs/ntfs/super.c:1663 [inline]
load_system_files+0x151c/0x4840 fs/ntfs/super.c:1818
ntfs_fill_super+0x19b3/0x2bd0 fs/ntfs/super.c:2900
mount_bdev+0x274/0x3a0 fs/super.c:1380
legacy_get_tree+0xef/0x190 fs/fs_context.c:610
vfs_get_tree+0x8c/0x270 fs/super.c:1510
do_new_mount+0x28f/0xae0 fs/namespace.c:3039
do_mount fs/namespace.c:3382 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3568
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: 0033:0x7f023bb1cafa
Code: 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffebbdb6c8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f023bb1cafa
RDX: 000000002001f1c0 RSI: 000000002001f200 RDI: 00007fffebbdb6e0
RBP: 00007fffebbdb6e0 R08: 00007fffebbdb720 R09: 0000000000000987
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004
R13: 000055555752e2c0 R14: 0000000000000000 R15: 00007fffebbdb720
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__ntfs_malloc fs/ntfs/malloc.h:31 [inline]
RIP: 0010:ntfs_malloc_nofs+0xfd/0x100 fs/ntfs/malloc.h:52
Code: 17 e8 d7 1e c7 fe 48 89 df be 42 0c 00 00 5b 41 5e 41 5f e9 a5 f2 10 ff e8 c0 1e c7 fe 31 c0 5b 41 5e 41 5f c3 e8 b3 1e c7 fe <0f> 0b 90 66 0f 1f 00 55 41 57 41 56 41 55 41 54 53 49 89 fe 49 bc
RSP: 0018:ffffc90003a3f818 EFLAGS: 00010293
RAX: ffffffff82c4488d RBX: 0000000000000000 RCX: ffff88802476bb80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff888073a05118 R08: ffffffff82c447bd R09: ffffed100e9c5323
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff888074e29be0 R14: ffff888073a05147 R15: dffffc0000000000
FS: 000055555752e300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f02336e6000 CR3: 000000007a170000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
If you want syzbot to run the reproducer, reply with:
#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 suspects this issue was fixed by commit:
commit 6f861765464f43a71462d52026fbddfc858239a5
Author: Jan Kara <[email protected]>
Date: Wed Nov 1 17:43:10 2023 +0000
fs: Block writes to mounted block devices
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=105d5a6a180000
start commit: 2639772a11c8 get_maintainer: remove stray punctuation when..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=f8e72bae38c079e4
dashboard link: https://syzkaller.appspot.com/bug?extid=d62e6bd2a2d05103d105
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1358d65ee80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10dbbe45e80000
If the result looks correct, please mark the issue as fixed by replying with:
#syz fix: fs: Block writes to mounted block devices
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
On Thu 29-02-24 02:29:03, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
>
> commit 6f861765464f43a71462d52026fbddfc858239a5
> Author: Jan Kara <[email protected]>
> Date: Wed Nov 1 17:43:10 2023 +0000
>
> fs: Block writes to mounted block devices
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=105d5a6a180000
> start commit: 2639772a11c8 get_maintainer: remove stray punctuation when..
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=f8e72bae38c079e4
> dashboard link: https://syzkaller.appspot.com/bug?extid=d62e6bd2a2d05103d105
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1358d65ee80000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10dbbe45e80000
>
> If the result looks correct, please mark the issue as fixed by replying with:
Looks good.
#syz fix: fs: Block writes to mounted block devices
Honza
--
Jan Kara <[email protected]>
SUSE Labs, CR