CVEvulnerability
CVE-2026-53102
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2026-06-24
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-401
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: Fix memory leak after mt76_connac_mcu_alloc_sta_req()
mt76_connac_mcu_alloc_sta_req() allocates an skb which is expected to
be freed eventually by mt76_mcu_skb_send_msg(). However, currently if
an intermediate function fails before sending, the allocated skb is
leaked.
Specifically, mt76_connac_mcu_sta_wed_update() and
mt76_connac_mcu_sta_key_tlv() may fail, leading to an immediate memory
leak in the error path.
Fix this by explicitly freeing the skb in these error paths.
Commit 7c0f63fe37a5 ("wifi: mt76: mt7996: fix memory leak on
mt7996_mcu_sta_key_tlv error") made a similar change.
Compile tested only. Issue found using a prototype static analysis tool
and code review.
Affected configurations
• linux linux kernel (>= 5.18 < 7.0.10)
Related
Weakness · CWE (1)
- CWE-401 Missing Release of Memory after Effective Lifetime weakness
References
- https://git.kernel.org/stable/c/7de35b99503012e57bec027e98ed53f881518b5b git.kernel.org
- https://git.kernel.org/stable/c/8527ac1bce87aaabde6755e8e6eb2a9f439d1292 git.kernel.org
- https://git.kernel.org/stable/c/a2af91af9536922edc3f63de90c3f1fe9db71717 git.kernel.org
- https://git.kernel.org/stable/c/c41075ce8cf05ed8c0e7b7efef000dce548ffc42 Patch
- https://git.kernel.org/stable/c/eb466406d2094deefadc2cd6ddb4f6eeb086d1b4 Patch