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CVE-2026-90378

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

N/A
Published: September 17, 2026 at 04:09 PM UTC
Updated: October 19, 2026 at 09:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
5.12b747fa343817fd322b4463dda99d28fc51e19c52
Vendor states this is fixed in 6a342db7a6502bc6781579145e05d4d4731786ab (fixed)
Vendor states this is fixed in 6a8000c76dc34490a2bb321ad1a5f882a2ccab7c (fixed)
Vendor states this is fixed in 808f2767d4217a5b96f674288573b9b89d432eed (fixed)
Vendor states this is fixed in 9ef1351209d42b7d96604f2a13d7ea8215a24e07 (fixed)
Vendor states this is fixed in b64d196280aff8494ba6fb387e37b18479c99b83 (fixed)
Vendor states this is fixed in c2c7f16f2c62f79f7c381e500afa7123580742a5 (fixed)
Vendor states this is fixed in ddf6a17d8e3d0dbb841c13c10d7c1340a138a80d (fixed)
Vendor states this is fixed in 5.12 (unaffected)
Vendor states this is fixed in 5.15.221 (unaffected)
Vendor states this is fixed in 6.1.188 (unaffected)
Vendor states this is fixed in 6.12.110 (unaffected)
Vendor states this is fixed in 6.18.52 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (7)

Source: cverecord
https://git.kernel.org/stable/c/b64d196280aff8494ba6fb387e37b18479c99b83
Source: cverecord
https://git.kernel.org/stable/c/9ef1351209d42b7d96604f2a13d7ea8215a24e07
Source: cverecord
https://git.kernel.org/stable/c/c2c7f16f2c62f79f7c381e500afa7123580742a5
Source: cverecord
https://git.kernel.org/stable/c/6a8000c76dc34490a2bb321ad1a5f882a2ccab7c
Source: cverecord
https://git.kernel.org/stable/c/ddf6a17d8e3d0dbb841c13c10d7c1340a138a80d
Source: cverecord
https://git.kernel.org/stable/c/6a342db7a6502bc6781579145e05d4d4731786ab
Source: cverecord
https://git.kernel.org/stable/c/808f2767d4217a5b96f674288573b9b89d432eed

Quick Info

StatusRECEIVED

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