NAK: [SRU][Q/N/J:linux-azure][PATCH 0/2] Backporting critical SMB client fixes to affected Ubuntu distros

John Cabaj john.cabaj at canonical.com
Mon Apr 6 15:04:17 UTC 2026


On 4/6/26 9:57 AM, John Cabaj wrote:
> BugLink: https://bugs.launchpad.net/bugs/2147347
> 
> SRU Justification
> 
> [Impact]
> 
> * Microsoft requested patches to address potential data corruption issues when network disconnects during extended writes.
> 
> [Fix]
> Questing
> * clean cherry-pick of upstream patches:
>    * d78840a6a38d: "smb: client: fix in-place encryption corruption in SMB2_write()"
>    * e3beefd3af09: "cifs: make default value of retrans as zero"
> Noble/Jammy
> * clean cherry-pick of upstream patch:
>    * d78840a6a38d: "smb: client: fix in-place encryption corruption in SMB2_write()"
> * simple backport of upstream patch:
>    * e3beefd3af09: "cifs: make default value of retrans as zero"
> 
> [Test Plan]
> 
> * Compile tested
> * Microsoft to test
> 
> [Regression potential]
> 
> * Patches limited to CIFs. Possible regressions result in unexpected behavior of CIFs driver.
> 
> [Other info]
> 
> * SF#00432539
> 
> Bharath SM (1):
>    smb: client: fix in-place encryption corruption in SMB2_write()
> 
> Shyam Prasad N (1):
>    cifs: make default value of retrans as zero
> 
>   fs/smb/client/fs_context.c | 2 +-
>   fs/smb/client/smb2pdu.c    | 5 ++++-
>   2 files changed, 5 insertions(+), 2 deletions(-)
> 

Build failed. Trying again then will send a v2

j-c




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