Bug 2493721 (CVE-2026-53318)

Summary: CVE-2026-53318 kernel: wifi: mt76: mt7925: prevent NULL pointer dereference in mt7925_tx_check_aggr()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, 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 wifi subsystem, specifically within the mt76: mt7925 driver. This vulnerability arises from a missing check for a NULL pointer before it is used in the `mt7925_tx_check_aggr()` function. Exploiting this flaw could lead to a system crash, causing 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 2026-06-26 21:03:03 UTC
In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: mt7925: prevent NULL pointer dereference in mt7925_tx_check_aggr()

Move the NULL check for 'sta' before dereferencing it to prevent a
possible crash.

Comment 1 Mauro Matteo Cascella 2026-06-29 09:55:46 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026062622-CVE-2026-53318-e744@gregkh/T