Re: [Linux-NTFS-Dev] [syzbot] kernel BUG in ntfs_read_inode_mount

[Pavel S. <pas...@gm...>]

On 1/17/22 22:02, Pavel Skripkin wrote:
> On 1/17/22 13:09, syzbot wrote:
>> Hello,
>> 
>> syzbot found the following issue on:
>> 
>> HEAD commit:    d0a231f01e5b Merge tag 'pci-v5.17-changes' of git://git.ke..
>> git tree:       upstream
>> console output: https://syzkaller.appspot.com/x/log.txt?x=11f83837b00000
>> kernel config:  https://syzkaller.appspot.com/x/.config?x=986ed422f1741853
>> dashboard link: https://syzkaller.appspot.com/bug?extid=3c765c5248797356edaa
>> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
>> 
>> Unfortunately, I don't have any reproducer for this issue yet.
>> 
> 
> Sad :(
> 
>> IMPORTANT: if you fix the issue, please add the following tag to the commit:
>> Reported-by: syz...@sy...
>> 
> 
> __ntfs_malloc() calls BUG_ON() in case of requested size is equal to
> zero. Seems like syzbot has once again crafted malicious fs image that
> has attr_list_size == 0
> 
> Just for thoughts
> 
> 

Clicked 'Send' button too early, sorry

With regards,
Pavel Skripkin