CVE-2026-53105: wifi: mt76: mt7925: prevent NULL vif dereference in mt7925_mac_write_txwi
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7925: prevent NULL vif dereference in mt7925macwritetxwi
Check for a NULL vif before accessing ieee80211vifismld(vif) to avoid a potential kernel panic in scenarios where vif might not be initialized.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
In mt7925_mac_write_txwi, add a check to ensure `vif` is initialized (not NULL) before accessing it or calling `ieee80211_vif_is_mld(vif)` to prevent NULL vif dereference and potential kernel panic.
Linux kernel (wifi: mt76: mt7925) mt7925_mac_write_txwi NULL check for vif = add NULL check before calling ieee80211_vif_is_mld(vif)
Event History
Frequently Asked Questions
What is the severity of CVE-2026-53105?
CVE-2026-53105 has a risk score of 34, indicating a moderate severity level.
How do I fix CVE-2026-53105?
To resolve CVE-2026-53105, update the Linux kernel to the latest version that includes the fix for this vulnerability.
What does CVE-2026-53105 affect?
CVE-2026-53105 affects the Linux kernel, specifically the mt76 and mt7925 drivers responsible for Wi-Fi functionality.
What does CVE-2026-53105 exploit?
CVE-2026-53105 exploits a NULL vif dereference leading to potential kernel panic in the mt7925 driver.
Can CVE-2026-53105 cause a system crash?
Yes, CVE-2026-53105 can cause a kernel panic, potentially leading to a system crash if exploited.