Message-ID: <000000000000fb2f84060ad4da7f@google.com>
Date:   Thu, 23 Nov 2023 09:06:23 -0800
From:   syzbot <syzbot+c5b339d16ffa61fd512d@...kaller.appspotmail.com>
To:     almaz.alexandrovich@...agon-software.com,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        ntfs3@...ts.linux.dev, syzkaller-bugs@...glegroups.com
Subject: [syzbot] [ntfs3?] WARNING in indx_insert_into_buffer

Hello,

syzbot found the following issue on:

HEAD commit:    037266a5f723 Merge tag 'scsi-fixes' of git://git.kernel.or..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=16fa37b7680000
kernel config:  https://syzkaller.appspot.com/x/.config?x=af04b7c4d36966d8
dashboard link: https://syzkaller.appspot.com/bug?extid=c5b339d16ffa61fd512d
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16b86f2f680000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=116b289f680000

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-037266a5.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/3611d88a1ea6/vmlinux-037266a5.xz
kernel image: https://storage.googleapis.com/syzbot-assets/92866a30a4f7/bzImage-037266a5.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/083e689d86f3/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+c5b339d16ffa61fd512d@...kaller.appspotmail.com

R13: 0000000000000021 R14: 431bde82d7b634db R15: 00007ffc52cb10d0
 </TASK>
------------[ cut here ]------------
memcpy: detected field-spanning write (size 3960) of single field "hdr1" at fs/ntfs3/index.c:1912 (size 16)
WARNING: CPU: 2 PID: 5214 at fs/ntfs3/index.c:1912 indx_insert_into_buffer.isra.0+0xfb5/0x1280 fs/ntfs3/index.c:1912
Modules linked in:
CPU: 2 PID: 5214 Comm: syz-executor117 Not tainted 6.7.0-rc1-syzkaller-00344-g037266a5f723 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:indx_insert_into_buffer.isra.0+0xfb5/0x1280 fs/ntfs3/index.c:1912
Code: c1 ca c1 fe c6 05 a3 cb 3d 0c 01 90 48 8b 74 24 70 b9 10 00 00 00 48 c7 c2 80 cf 03 8b 48 c7 c7 e0 cf 03 8b e8 8c e9 87 fe 90 <0f> 0b 90 90 e9 1b fe ff ff 48 c7 44 24 68 00 00 00 00 31 db e9 10
RSP: 0018:ffffc900035c76e8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 00000000fffffff4 RCX: ffffffff814ca799
RDX: ffff8880287393c0 RSI: ffffffff814ca7a6 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000005 R12: ffff888021065c00
R13: ffff8880143ecc20 R14: ffff888029712800 R15: ffff888018fae018
FS:  0000555556341380(0000) GS:ffff88806b800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd80dde5e00 CR3: 0000000026243000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 indx_insert_entry+0x1a5/0x460 fs/ntfs3/index.c:1981
 ni_add_name+0x4d9/0x820 fs/ntfs3/frecord.c:3055
 ni_rename+0xa1/0x1a0 fs/ntfs3/frecord.c:3087
 ntfs_rename+0x91f/0xec0 fs/ntfs3/namei.c:322
 vfs_rename+0x13e0/0x1c30 fs/namei.c:4844
 do_renameat2+0xc3c/0xdc0 fs/namei.c:4996
 __do_sys_rename fs/namei.c:5042 [inline]
 __se_sys_rename fs/namei.c:5040 [inline]
 __x64_sys_rename+0x81/0xa0 fs/namei.c:5040
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fd8160252a9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 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:00007ffc52cb1068 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007ffc52cb1090 RCX: 00007fd8160252a9
RDX: 00007fd816024370 RSI: 0000000020000a40 RDI: 0000000020000300
RBP: 0000000000000002 R08: 00007ffc52cb0e06 R09: 00007ffc52cb10b0
R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc52cb108c
R13: 0000000000000021 R14: 431bde82d7b634db R15: 00007ffc52cb10d0
 </TASK>


---
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