CVEvulnerability
CVE-2026-90378
- Status
- Received
- Published
- 2026-09-17
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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.
References
- https://git.kernel.org/stable/c/6a342db7a6502bc6781579145e05d4d4731786ab git.kernel.org
- https://git.kernel.org/stable/c/6a8000c76dc34490a2bb321ad1a5f882a2ccab7c git.kernel.org
- https://git.kernel.org/stable/c/808f2767d4217a5b96f674288573b9b89d432eed git.kernel.org
- https://git.kernel.org/stable/c/9ef1351209d42b7d96604f2a13d7ea8215a24e07 git.kernel.org
- https://git.kernel.org/stable/c/b64d196280aff8494ba6fb387e37b18479c99b83 git.kernel.org
- https://git.kernel.org/stable/c/c2c7f16f2c62f79f7c381e500afa7123580742a5 git.kernel.org
- https://git.kernel.org/stable/c/ddf6a17d8e3d0dbb841c13c10d7c1340a138a80d git.kernel.org