SB2025121012 - Memory leak in Linux kernel tty serial driver
Published: December 10, 2025 Updated: December 12, 2025
Security Bulletin ID
SB2025121012
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-2023-53858)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the s3c24xx_serial_getclk() function in drivers/tty/serial/samsung_tty.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/073dbbe5743779faf24f233cc95459b47c7198dd
- https://git.kernel.org/stable/c/1694fc8ad734e2909a9e40d2be03cc4423e0bee6
- https://git.kernel.org/stable/c/30962268fa1a7466413b3d83037688129021d470
- https://git.kernel.org/stable/c/34f5b826dd509b76644f83094b4af7e7668a6a38
- https://git.kernel.org/stable/c/755289d67eb9a74ae71bb624902e979c66859444
- https://git.kernel.org/stable/c/a49e5a05121c8bc471a57b4916c5393749c24de5
- https://git.kernel.org/stable/c/a9c09546e903f1068acfa38e1ee18bded7114b37
- https://git.kernel.org/stable/c/f47e6631a8fcc6fe05b8644aa4222a60f3b0a927
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.291