# CVE-2024-36973: misc: microchip: pci1xxxx: fix double free in the error handling of gp\_aux\_bus\_probe()

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-06-17 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 6.1

## Description

In the Linux kernel, the following vulnerability has been resolved: misc: microchip: pci1xxxx: fix double free in the error handling of gp_aux_bus_probe() When auxiliary_device_add() returns error and then calls auxiliary_device_uninit(), callback function gp_auxiliary_device_release() calls ida_free() and kfree(aux_device_wrapper) to free memory. We should't call them again in the error handling path. Fix this by skipping the redundant cleanup functions.

## 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.
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  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-36973

## 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/34ae447b138680b5ed3660f7d935ff3faf88ba1a
- https://git.kernel.org/stable/c/86c9713602f786f441630c4ee02891987f8618b9
- https://git.kernel.org/stable/c/1efe551982297924d05a367aa2b6ec3d275d5742
- https://git.kernel.org/stable/c/086c6cbcc563c81d55257f9b27e14faf1d0963d3

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