APPLIED: [SRU][J/F][PATCH 0/1] CVE-2023-52530

[Roxana Nicolescu]

On 12/04/2024 22:02, Bethany Jamison wrote:
> [Impact]
>
>   In the Linux kernel, the following vulnerability has been resolved: wifi:
>   mac80211: fix potential key use-after-free When ieee80211_key_link() is
>   called by ieee80211_gtk_rekey_add() but returns 0 due to KRACK protection
>   (identical key reinstall), ieee80211_gtk_rekey_add() will still return a
>   pointer into the key, in a potential use-after-free. This normally doesn't
>   happen since it's only called by iwlwifi in case of WoWLAN rekey offload
>   which has its own KRACK protection, but still better to fix, do that by
>   returning an error code and converting that to success on the cfg80211
>   boundary only, leaving the error for bad callers of
>   ieee80211_gtk_rekey_add().
>
> [Fix]
>
> Mantic:	pending
> Jammy: 	Backport - contect conflict with neighboring line that didn't seem
> 	to affect the fix change so I implemented the fix change directly
> Focal:	J patch applied cleanly.
> Bionic:	fix sent to esm ML
> Xenial:	fix sent to esm ML
> Trusty:	not-affected
>
> [Test Case]
>
> Compile and boot tested.
>
> [Where problems could occur]
>
> This fix affects those who use the mac80211 framework, an issue with this
> fix would be visable via unpredicted system behavior or a system crash.
>
> Johannes Berg (1):
>    wifi: mac80211: fix potential key use-after-free
>
>   net/mac80211/cfg.c | 3 +++
>   net/mac80211/key.c | 2 +-
>   2 files changed, 4 insertions(+), 1 deletion(-)
>
Applied to jammy, focal master-next branches. Thanks!