CVE-2026-68350: wifi: carl9170: fix OOB read from off-by-two in TX status handler

Severity: unknown
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-10 · updated 2026-08-19

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: carl9170: fix OOB read from off-by-two in TX status handler The bounds check in carl9170_tx_process_status() uses `i > ((cmd->hdr.len / 2) + 1)` which is off by two, allowing 2 extra iterations past valid _tx_status entries when the firmware- controlled hdr.ext exceeds hdr.len/2. Fix by using the correct comparison `i >= (cmd->hdr.len / 2)`.

Affected products

Linux kernel: 2.6.37 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/2c030c20f112bd8f6aa59d09501835605f01bf9d
https://git.kernel.org/stable/c/423c836f934814b8fdbe53b24a79d021a0ee8454
https://git.kernel.org/stable/c/73462e8e602047a03e538d971a79ad67a4ba9a5d
https://git.kernel.org/stable/c/7ed0dce8613c92111d2a3836ced2ab03190ba20e
https://git.kernel.org/stable/c/9bf8d8510b7bed20320dead0f8cdcf8e610ec8db
https://git.kernel.org/stable/c/a3f42f1049ad80c65560d2b078ad426c3134f78d
https://git.kernel.org/stable/c/e8a862a3da457ddc50633c346dc645d559da09ae
https://git.kernel.org/stable/c/fab6ff91d5b8c4af62e2ced42fb357fa3eb9fd59

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