SB20260919181 - Incomplete cleanup in Linux kernel realtek rtlwifi driver
Published: September 19, 2026
Security Bulletin ID
SB20260919181
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Incomplete cleanup (CVE-ID: CVE-2026-90403)
CWE-ID: CWE-459 - Incomplete cleanup
CVSSv4: 7.3 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to compromise system confidentiality, integrity, and availability.
The vulnerability exists due to incomplete cleanup caused by an incorrect goto label in the rtl_pci_probe() function when handling an IRQ handler registration failure. A local user can trigger this error path to compromise system confidentiality, integrity, and availability.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1b68b6e529ce75112fab98e89583a76370ca394b
- https://git.kernel.org/stable/c/2634998247d24be34ba16a7666f31815ef1da00b
- https://git.kernel.org/stable/c/3c2999d13eeb222ae56631aeb7ca248090f2b210
- https://git.kernel.org/stable/c/86e6187f8525c8f8219eb49e022eba854cc6ab86
- https://git.kernel.org/stable/c/a89818977338ba71194b1ab1d071f0c0848b1e13
- https://git.kernel.org/stable/c/aef178ffae5420afdbf46f7133ed28bd4248e15c
- https://git.kernel.org/stable/c/b42fcfb097da46f0e86564736ced939e83cb8442
- https://git.kernel.org/stable/c/cfd6824dd1d151ab3abc00117b3774c8056006e0