SB20260928338 - Use-after-free in Linux kernel net ieee802154 driver
Published: September 28, 2026 Updated: September 30, 2026
Security Bulletin ID
SB20260928338
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use-after-free (CVE-ID: CVE-2026-97600)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local privileged user to trigger a use-after-free condition.
The vulnerability exists due to use-after-free in cc2520_fifop_irqwork handling when removing a cc2520 device. A local privileged user can initiate removal of a cc2520 device while FIFOP interrupts are handled to trigger a use-after-free condition.
The devm-managed FIFOP IRQ can remain active after the driver's removal callback returns.
Remediation
Install update from vendor's website.