Bug 2514443 (CVE-2026-68439)

Summary: CVE-2026-68439 kernel: wifi: mt76: mt7925: fix possible NULL-pointer deref in mt7925_mcu_bss_he_tlv()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, rhel-process-autobot, sghai, sidsharm, suppawar, vlaad, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in the Linux kernel's Wi-Fi driver for the `mt7925` component. This vulnerability arises from a potential NULL-pointer dereference within the `mt7925_mcu_bss_he_tlv()` function. If the `mt76_connac_get_he_phy_cap` routine returns a null value, it is not properly checked before being used, which could lead to system instability or a denial of service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2026-08-12 00:21:40 UTC
In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: mt7925: fix possible NULL-pointer deref in mt7925_mcu_bss_he_tlv()

mt76_connac_get_he_phy_cap routine can theoretically return NULL so
check cap pointer before dereferencing it.

Comment 1 Mauro Matteo Cascella 2026-08-12 15:38:20 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026081256-CVE-2026-68439-3113@gregkh/T