Re: [PATCH 1/1] ext4: fix crash on BUG_ON in ext4_alloc_group_tables

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 9/26/24 11:04 AM, Eric Sandeen wrote:

 
> Can you explain what the 2 cases under
> 
> /* Avoid allocating large 'groups' array if not needed */
> 
> are doing? I *think* the first 'if' is trying not to over-allocate for the last
> batch of block groups that get added during a resize. What is the "else if" case
> doing?

(or maybe I had that backwards)

Incidentally, the offending commit that this fixes (665d3e0af4d35ac) got turned
into CVE-2023-52622, so it's quite likely that distros have backported the broken
commit as part of the CVE game.

So the followup fix looks a bit urgent to me.

-Eric




[Index of Archives]     [Reiser Filesystem Development]     [Ceph FS]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite National Park]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]     [Linux Media]

  Powered by Linux