CVE-2026-90378wifi: mt76: mt792x: Fix memory leak in SDIO TX path
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from b747fa343817fd322b4463dda99d28fc51e19c52 before b64d196280aff8494ba6fb387e37b18479c99b83; from b747fa343817fd322b4463dda99d28fc51e19c52 before 9ef1351209d42b7d96604f2a13d7ea8215a24e07; from b747fa343817fd322b4463dda99d28fc51e19c52 before c2c7f16f2c62f79f7c381e500afa7123580742a5; from b747fa343817fd322b4463dda99d28fc51e19c52 before 6a8000c76dc34490a2bb321ad1a5f882a2ccab7c; from b747fa343817fd322b4463dda99d28fc51e19c52 before ddf6a17d8e3d0dbb841c13c10d7c1340a138a80d; from b747fa343817fd322b4463dda99d28fc51e19c52 before 6a342db7a6502bc6781579145e05d4d4731786ab; from b747fa343817fd322b4463dda99d28fc51e19c52 before 808f2767d4217a5b96f674288573b9b89d432eed | CNA record |
References
- https://git.kernel.org/stable/c/b64d196280aff8494ba6fb387e37b18479c99b83
- https://git.kernel.org/stable/c/9ef1351209d42b7d96604f2a13d7ea8215a24e07
- https://git.kernel.org/stable/c/c2c7f16f2c62f79f7c381e500afa7123580742a5
- https://git.kernel.org/stable/c/6a8000c76dc34490a2bb321ad1a5f882a2ccab7c
- https://git.kernel.org/stable/c/ddf6a17d8e3d0dbb841c13c10d7c1340a138a80d
- https://git.kernel.org/stable/c/6a342db7a6502bc6781579145e05d4d4731786ab
- https://git.kernel.org/stable/c/808f2767d4217a5b96f674288573b9b89d432eed
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.