SB20260918451 - Use-after-free in Linux kernel nfc pn533 driver
Published: September 18, 2026
Security Bulletin ID
SB20260918451
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use-after-free (CVE-ID: CVE-2026-90222)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a use-after-free in the PN533 NFC driver send path when command completion races frame transmission. A local user can trigger the race condition to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/19f1239758c23f087f4c25733cfcf62bf0b06051
- https://git.kernel.org/stable/c/3e7a093c177f9f8b9fd039cab41191515079425a
- https://git.kernel.org/stable/c/47792358a624ea066455ef86b744159928cd7716
- https://git.kernel.org/stable/c/753bdaf3220fe8371a6c3c75da645ea7753d11be
- https://git.kernel.org/stable/c/7a8e0a7aef80721da287ac246349aba7d98f6aed
- https://git.kernel.org/stable/c/7ee72c64b4b66b1b42dbddbca0a80a218f1b9297
- https://git.kernel.org/stable/c/8710faddef4ad8b2a6bfa985d896e2e1bfb77018
- https://git.kernel.org/stable/c/d329f61ad5786900334a54c2445dc99feda545bf