APPLIED[N]: [PATCH 0/1][SRU][Unstable][Oracular][Noble] UBSAN: array-index-out-of-bounds in module mt76

[Roxana Nicolescu]

On 27/09/2024 12:36, You-Sheng Yang wrote:
> BugLink: https://bugs.launchpad.net/bugs/2081785
>
> [Impact]
>
> UBSAN warnings in dmesg:
> ```
> UBSAN: array-index-out-of-bounds in /home/kernel/COD/linux/drivers/net/wireless/mediatek/mt76/mac80211.c:1532:34
> index 3 is out of range for type 'mt76_phy *[3]'
> ```
>
> [Fix]
>
> Proposed fix commit
> https://github.com/torvalds/linux/commit/9679ca7326e52282cc923c4d71d81c999cb6cd55
> ("wifi: mt76: mt7925: fix a potential array-index-out-of-bounds issue for clc"),
> which fixes commit
> https://github.com/torvalds/linux/commit/c948b5da6bbec742b433138e3e3f9537a85af2e5
> ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") landed in
> v6.7.
>
> [Test Case]
>
> UBSAN warning should go away.
>
> [Where problems could occur]
>
> No. This bails out early when error occurs.
>
> [Other Info]
>
> While the affected commit was first introduced in v6.7, nominating all kernels
> since then: unstable, oracular, oem-6.11, noble, and oem-6.8.
>
> Ming Yen Hsieh (1):
>    wifi: mt76: mt7925: fix a potential array-index-out-of-bounds issue
>      for clc
>
>   drivers/net/wireless/mediatek/mt76/mt7925/mcu.c | 3 +++
>   1 file changed, 3 insertions(+)
>
Applied to noble:linux master-next branch. Thanks!