APPLIED: [SRU][J][PATCH v4 0/3] CVE-2023-52593

[Stefan Bader]

On 07.08.25 17:17, alice.munduruca at canonical.com wrote:
> From: "Alice C. Munduruca" <alice.munduruca at canonical.com>
> 
> v2 -> change `cherry-picked from` to `backported from` with added
>        notes concerning the changes. Changed the `Where problems could
>        occur` section as previous was incorrect.
> v3 -> added this changelog to document version changes.
> v4 -> added missing commits d2b2beb94 and 4bda7e3e9 that fix memory
>        and functionality bugs within the patched wifi driver.
> 
> [ Impact ]
> 
> No check is made in `wfx_set_mfp_ap` in case the function
> `ieee80211_beacon_get` returns a null pointer in case of error.
> As a result, we add a check to ensure a null pointer dereference
> does not occur. Additional commits address lack of memory management
> and consideration for a typical non-invalid state which was
> mishandled.
> 
> [ Fix ]
> 
> Jammy: Backported from torvalds/linux --
>         `wfx_hif_set_mfp` was changed to the applicable
>         `hif_set_mfp` given the lack of namespacing prior
>         to commit fcd6c0f9a12369ae6d500d747e668ed98ef5edd6.
> 
> [ Test Plan ]
> 
> Compile and boot tested, since no hardware is available.
> 
> [ Where problems could occur ]
> 
> It's possible that the additional checks (although some are marked
> with the unlikely macro) could result in performance degradations
> should the function be called sufficiently often.
> 
> Dmitry Antipov (1):
>    wifi: wfx: fix possible NULL pointer dereference in wfx_set_mfp_ap()
> 
>   drivers/staging/wfx/sta.c | 43 +++++++++++++++++++++++----------------
>   1 file changed, 25 insertions(+), 18 deletions(-)
> 

Applied to jammy:linux/master-next. Thanks.

-Stefan

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