In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: prevent NULL vif dereference in mt7925_mac_write_txwi Check… (CVE-2026-53105)
A vulnerability in the Linux kernel's mt7925 WiFi driver could cause a kernel panic due to a NULL pointer dereference when the virtual interface (vif) is not initialized. The issue arises from missing checks before accessing vif-related functions. This flaw has been resolved by adding a NULL check to prevent the dereference.
AI Analysis
Technical Summary
The Linux kernel mt7925 WiFi driver contained a vulnerability (CVE-2026-53105) where the function mt7925_mac_write_txwi did not verify if the virtual interface pointer (vif) was NULL before calling ieee80211_vif_is_mld(vif). This could lead to a NULL pointer dereference and cause a kernel panic under certain conditions. The fix involves adding a check to ensure vif is not NULL before access, preventing the kernel panic.
Potential Impact
This vulnerability does not affect confidentiality or integrity but can cause a denial of service by triggering a kernel panic (system crash) when the NULL vif pointer is dereferenced. There are no known exploits in the wild. The impact is limited to availability disruption on affected systems running the vulnerable driver.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to add a NULL check for the vif pointer in mt7925_mac_write_txwi. Users should update their Linux kernel to a version that includes this fix once available. Patch status is not yet confirmed; check the vendor advisory for current remediation guidance.
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: prevent NULL vif dereference in mt7925_mac_write_txwi Check… (CVE-2026-53105)
Description
A vulnerability in the Linux kernel's mt7925 WiFi driver could cause a kernel panic due to a NULL pointer dereference when the virtual interface (vif) is not initialized. The issue arises from missing checks before accessing vif-related functions. This flaw has been resolved by adding a NULL check to prevent the dereference.
CVSS v3.1
Score 5.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel mt7925 WiFi driver contained a vulnerability (CVE-2026-53105) where the function mt7925_mac_write_txwi did not verify if the virtual interface pointer (vif) was NULL before calling ieee80211_vif_is_mld(vif). This could lead to a NULL pointer dereference and cause a kernel panic under certain conditions. The fix involves adding a check to ensure vif is not NULL before access, preventing the kernel panic.
Potential Impact
This vulnerability does not affect confidentiality or integrity but can cause a denial of service by triggering a kernel panic (system crash) when the NULL vif pointer is dereferenced. There are no known exploits in the wild. The impact is limited to availability disruption on affected systems running the vulnerable driver.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to add a NULL check for the vif pointer in mt7925_mac_write_txwi. Users should update their Linux kernel to a version that includes this fix once available. Patch status is not yet confirmed; check the vendor advisory for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-99r5-v2c8-64wh
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-53105"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a629b119c2644c7f8d86844
Added to database: 07/23/2026, 22:52:01 UTC
Last enriched: 07/23/2026, 22:55:46 UTC
Last updated: 07/31/2026, 19:24:49 UTC
Views: 15
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