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* [syzbot] [ext4?] kernel BUG in ext4_write_inline_data_end (2)
@ 2024-02-02  9:24 syzbot
  2024-02-06 22:48 ` syzbot
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: syzbot @ 2024-02-02  9:24 UTC (permalink / raw)
  To: adilger.kernel, linux-ext4, linux-fsdevel, linux-kernel,
	syzkaller-bugs, tytso

Hello,

syzbot found the following issue on:

HEAD commit:    6764c317b6bb Merge tag 'scsi-fixes' of git://git.kernel.or..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=132faab7e80000
kernel config:  https://syzkaller.appspot.com/x/.config?x=2c0ac5dfae6ecc58
dashboard link: https://syzkaller.appspot.com/bug?extid=0c89d865531d053abb2d
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/90c636d7609b/disk-6764c317.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/9d76784c4adc/vmlinux-6764c317.xz
kernel image: https://storage.googleapis.com/syzbot-assets/4fa116a29660/bzImage-6764c317.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+0c89d865531d053abb2d@syzkaller.appspotmail.com

------------[ cut here ]------------
kernel BUG at fs/ext4/inline.c:763!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 11999 Comm: syz-executor.1 Not tainted 6.8.0-rc2-syzkaller-00055-g6764c317b6bb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:ext4_write_inline_data_end+0x550/0xc20 fs/ext4/inline.c:763
Code: 25 28 00 00 00 0f 85 1d 06 00 00 48 81 c4 b0 00 00 00 44 89 f0 5b 5d 41 5c 41 5d 41 5e 41 5f e9 46 d6 87 08 e8 21 65 4c ff 90 <0f> 0b e8 19 65 4c ff 4d 8d 7c 24 34 4c 89 e7 e8 5c 3c 7c ff be 04
RSP: 0018:ffffc90004a3f928 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8880452c82b0 RCX: ffffffff82400124
RDX: ffff888020358000 RSI: ffffffff8240049f RDI: 0000000000000001
RBP: 0000000000000020 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000004 R12: ffffea00013a6980
R13: 0000000000000020 R14: ffff8880452c8050 R15: ffffc90004a3f978
FS:  00007f1365d136c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb7e6f02425 CR3: 0000000028762000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 ext4_write_end+0x4af/0xed0 fs/ext4/inode.c:1284
 generic_perform_write+0x33b/0x620 mm/filemap.c:3941
 ext4_buffered_write_iter+0x11f/0x3d0 fs/ext4/file.c:299
 ext4_file_write_iter+0x819/0x1960 fs/ext4/file.c:698
 call_write_iter include/linux/fs.h:2085 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0x6e1/0x1110 fs/read_write.c:590
 ksys_write+0x12f/0x260 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd8/0x270 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f136507dda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1365d130c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f13651abf80 RCX: 00007f136507dda9
RDX: 0000000000000020 RSI: 00000000200002c0 RDI: 0000000000000005
RBP: 00007f13650ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f13651abf80 R15: 00007ffc77beff18
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_write_inline_data_end+0x550/0xc20 fs/ext4/inline.c:763
Code: 25 28 00 00 00 0f 85 1d 06 00 00 48 81 c4 b0 00 00 00 44 89 f0 5b 5d 41 5c 41 5d 41 5e 41 5f e9 46 d6 87 08 e8 21 65 4c ff 90 <0f> 0b e8 19 65 4c ff 4d 8d 7c 24 34 4c 89 e7 e8 5c 3c 7c ff be 04
RSP: 0018:ffffc90004a3f928 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8880452c82b0 RCX: ffffffff82400124
RDX: ffff888020358000 RSI: ffffffff8240049f RDI: 0000000000000001
RBP: 0000000000000020 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000004 R12: ffffea00013a6980
R13: 0000000000000020 R14: ffff8880452c8050 R15: ffffc90004a3f978
FS:  00007f1365d136c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffb08627d58 CR3: 0000000028762000 CR4: 0000000000350ef0


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^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2024-11-08 10:27 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-02-02  9:24 [syzbot] [ext4?] kernel BUG in ext4_write_inline_data_end (2) syzbot
2024-02-06 22:48 ` syzbot
2024-11-08  9:16 ` [syzbot] demo123---demo123---0c89d865531d053abb2d syzbot
2024-11-08 10:27 ` syzbot

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