wifi: mt76: mt7921: fix use after free in mt7921_acpi_read()

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: fix use after free in mt7921_acpi_read() Don't dereference "sar_root" after it has been freed.

Scores

No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.

EPSS (exploitation in 30 days)

0.18% · top 92% of all CVEs (6 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.

Affected products

• Linux · Linux

  • affected f965333e491e36adb0fa91e389fba8685b704fb6 – < 3ed0b382cb36f6dac9f93b3a5533cfcd699409a5
  • affected f965333e491e36adb0fa91e389fba8685b704fb6 – < e7de4b4979bd8d313ec837931dde936653ca82ea

• Linux · Linux

  • affected 6.0
  • unaffected < 6.0
  • unaffected 6.0.3 – ≤ 6.0.*
  • unaffected 6.1 – ≤ *

References (2)

• https://git.kernel.org/stable/c/3ed0b382cb36f6dac9f93b3a5533cfcd699409a5 (opens in a new tab)
• https://git.kernel.org/stable/c/e7de4b4979bd8d313ec837931dde936653ca82ea (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2022-50852](https://trackcve.app/badge/CVE-2022-50852.svg)](https://trackcve.app/cve/CVE-2022-50852)

Record last updated 11 May 2026, 19:26 UTC.