Bug 2402288 (CVE-2023-53687)

Summary: CVE-2023-53687 kernel: tty: serial: samsung_tty: Fix a memory leak in s3c24xx_serial_getclk() when iterating clk
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-10-07 16:07:33 UTC 
In the Linux kernel, the following vulnerability has been resolved:

tty: serial: samsung_tty: Fix a memory leak in s3c24xx_serial_getclk() when iterating clk

When the best clk is searched, we iterate over all possible clk.

If we find a better match, the previous one, if any, needs to be freed.
If a better match has already been found, we still need to free the new
one, otherwise it leaks.
Comment 1 Jon Moroney 2025-10-07 19:46:16 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100710-CVE-2023-53687-c50c@gregkh/T