[SRU][J][PATCH v3 0/1] CVE-2023-52593

[alice.munduruca at canonical.com]

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.

[ 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.

[ 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 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(-)

-- 
2.48.1