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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-53102

wifi: mt76: Fix memory leak after mt76_connac_mcu_alloc_sta_req()

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Status
Published
Published
Updated
Assigning organization
Linux

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 6683d988089ce0e80bd859a9493333b6b272420e to < a2af91af9536922edc3f63de90c3f1fe9db71717affected
  • 6683d988089ce0e80bd859a9493333b6b272420e to < 7de35b99503012e57bec027e98ed53f881518b5baffected
  • 6683d988089ce0e80bd859a9493333b6b272420e to < 8527ac1bce87aaabde6755e8e6eb2a9f439d1292affected
  • 6683d988089ce0e80bd859a9493333b6b272420e to < eb466406d2094deefadc2cd6ddb4f6eeb086d1b4affected
  • 6683d988089ce0e80bd859a9493333b6b272420e to < c41075ce8cf05ed8c0e7b7efef000dce548ffc42affected

Linux Linux

Default version status: affected

  • 5.18affected
  • 0 to < 5.18unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.109 to ≤ 6.12.*unaffected
  • 6.18.50 to ≤ 6.18.*unaffected
  • 7.0.10 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References