linux-ext4 - [syzbot] [ext4?] WARNING in ext4_expand_extra_isize

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Message-ID: <000000000000dda0af05f683ce66@google.com>
Date:   Thu, 09 Mar 2023 20:00:55 -0800
From:   syzbot <syzbot+7f99d7ca409ff61ff282@...kaller.appspotmail.com>
To:     adilger.kernel@...ger.ca, linux-ext4@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com, tytso@....edu
Subject: [syzbot] [ext4?] WARNING in ext4_expand_extra_isize_ea (2)

Hello,

syzbot found the following issue on:

HEAD commit:    f915322fe014 Merge tag 'v6.3-p2' of git://git.kernel.org/p..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=12f98c6cc80000
kernel config:  https://syzkaller.appspot.com/x/.config?x=dc0f7cfe5b32efe2
dashboard link: https://syzkaller.appspot.com/bug?extid=7f99d7ca409ff61ff282
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/3b5906c911a8/disk-f915322f.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/dba92a9c1a17/vmlinux-f915322f.xz
kernel image: https://storage.googleapis.com/syzbot-assets/e4fca23736a8/bzImage-f915322f.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+7f99d7ca409ff61ff282@...kaller.appspotmail.com

EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: writeback.
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10480 at mm/slab_common.c:935 folio_order include/linux/mm.h:850 [inline]
WARNING: CPU: 1 PID: 10480 at mm/slab_common.c:935 free_large_kmalloc+0x3d/0x190 mm/slab_common.c:933
Modules linked in:
CPU: 1 PID: 10480 Comm: syz-executor.5 Not tainted 6.2.0-syzkaller-13563-gf915322fe014 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:free_large_kmalloc+0x3d/0x190 mm/slab_common.c:935
Code: 48 8b 04 25 28 00 00 00 48 89 44 24 08 48 8b 47 08 a8 01 0f 85 4e 01 00 00 49 89 f6 0f 1f 44 00 00 49 f7 07 00 00 01 00 75 25 <0f> 0b 31 db 80 3d 90 02 97 0c 00 75 21 c6 05 87 02 97 0c 01 48 c7
RSP: 0018:ffffc90006707748 EFLAGS: 00010246
RAX: ffffea0000afcf08 RBX: 0000000000000012 RCX: ffffea0000afcf08
RDX: ffffea0000000000 RSI: ffff88804f4105a4 RDI: ffffea00013d0400
RBP: ffffc90006707968 R08: ffffffff813ed30c R09: fffffbfff209e04c
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88804f4105a4
R13: 0000000000000000 R14: ffff88804f4105a4 R15: ffffea00013d0400
FS:  00007f5424471700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020002000 CR3: 000000008f925000 CR4: 00000000003506e0
DR0: 00000000ffff070c DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_xattr_move_to_block fs/ext4/xattr.c:2680 [inline]
 ext4_xattr_make_inode_space fs/ext4/xattr.c:2743 [inline]
 ext4_expand_extra_isize_ea+0x1227/0x1c40 fs/ext4/xattr.c:2835
 __ext4_expand_extra_isize+0x2f7/0x3d0 fs/ext4/inode.c:5955
 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5998 [inline]
 __ext4_mark_inode_dirty+0x60e/0x9d0 fs/ext4/inode.c:6076
 __ext4_unlink+0x997/0xbb0 fs/ext4/namei.c:3256
 ext4_unlink+0x294/0x840 fs/ext4/namei.c:3299
 vfs_unlink+0x35d/0x5f0 fs/namei.c:4250
 do_unlinkat+0x4a1/0x940 fs/namei.c:4316
 __do_sys_unlinkat fs/namei.c:4359 [inline]
 __se_sys_unlinkat fs/namei.c:4352 [inline]
 __x64_sys_unlinkat+0xce/0xf0 fs/namei.c:4352
 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: 0033:0x7f542368c0f9
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:00007f5424471168 EFLAGS: 00000246 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 00007f54237abf80 RCX: 00007f542368c0f9
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 00007f54236e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffff833d89f R14: 00007f5424471300 R15: 0000000000022000
 </TASK>


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