SB2025091953 - Memory leak in Linux kernel char tpm driver
Published: September 19, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091953
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 security vulnerability.
1) Memory leak (CVE-ID: CVE-2022-50389)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the crb_acpi_add() function in drivers/char/tpm/tpm_crb.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/08fd965521d0e172d540cf945517810895fcb199
- https://git.kernel.org/stable/c/0bd9b4be721c776f77adcaf34105dfca3007ddb9
- https://git.kernel.org/stable/c/1af2232b13837ce0f3a082b9f43735b09aafc367
- https://git.kernel.org/stable/c/2fcd3dc8b97a14f1672729c86b7041a1a89b052a
- https://git.kernel.org/stable/c/37e90c374dd11cf4919c51e847c6d6ced0abc555
- https://git.kernel.org/stable/c/927860dfa161ae8392a264197257dbdc52b26b0f
- https://git.kernel.org/stable/c/986cd9a9b95423e35a2cbb8e9105aec0e0d7f337
- https://git.kernel.org/stable/c/b0785edaf649e5f04dc7f75533e810f4c00e4106
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.3