ACK: [SRU Focal,Jammy,OEM-6.1,Lunar,Mantic 0/1] CVE-2023-6606

[Manuel Diewald]

On Wed, Jan 03, 2024 at 09:12:39AM -0300, Thadeu Lima de Souza Cascardo wrote:
> [Impact]
> An out-of-bounds access in cifs filesystem may lead to crashes or
> information leak.
> 
> [Test case]
> A PoC from the kernel.org bugzilla was used and a different error message
> was present in dmesg as expected:
> 
> [  518.358312] CIFS: VFS: checkSMB: can't read BCC due to invalid WordCount(240)
> 
> [Backport]
> Clean cherry-pick on all kernels. For 5.15 and earlier kernels, the file
> has been moved, hence the second patch version.
> 
> [Potential regression]
> Failure to mount cifs or filesystem corruption on cifs mounts.
> 
> Paulo Alcantara (1):
>   smb: client: fix OOB in smbCalcSize()
> 
>  fs/smb/client/misc.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> -- 
> 2.34.1
> 
> 
> -- 
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Acked-by: Manuel Diewald <manuel.diewald at canonical.com>

-- 
 Manuel