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CVE-2026-90378

wifi: mt76: mt792x: Fix memory leak in SDIO TX path

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.52, and 1 more
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt792x: Fix memory leak in SDIO TX path When tx_prepare_skb() returns an error in the SDIO TX path, the skb is not freed, leading to a memory leak. This can occur when zero-length frames (such as WNM NULL frames) are dropped to prevent potential hardware TX hangs. Fix this by properly releasing the skb with ieee80211_tx_status_ext() when tx_prepare_skb() fails.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From b747fa343817fd322b4463dda99d28fc51e19c52 · fixed in b64d196280aff8494ba6fb387e37b18479c99b83; From b747fa343817fd322b4463dda99d28fc51e19c52 · fixed in 9ef1351209d42b7d96604f2a13d7ea8215a24e07; From b747fa343817fd322b4463dda99d28fc51e19c52 · fixed in c2c7f16f2c62f79f7c381e500afa7123580742a5; From b747fa343817fd322b4463dda99d28fc51e19c52 · fixed in 6a8000c76dc34490a2bb321ad1a5f882a2ccab7c; From b747fa343817fd322b4463dda99d28fc51e19c52 · fixed in ddf6a17d8e3d0dbb841c13c10d7c1340a138a80d; From b747fa343817fd322b4463dda99d28fc51e19c52 · fixed in 6a342db7a6502bc6781579145e05d4d4731786ab; From b747fa343817fd322b4463dda99d28fc51e19c52 · fixed in 808f2767d4217a5b96f674288573b9b89d432eed

  • Linux Linux

    5.12

  • KernelLinux

    From 5.12.0 · fixed in 5.15.221; From 5.16.0 · fixed in 6.1.188; From 6.2.0 · fixed in 6.6.157; From 6.7.0 · fixed in 6.12.110; From 6.13.0 · fixed in 6.18.52; From 6.19.0 · fixed in 7.2.6

References 7

git.kernel.org