SB2024123032 - Use-after-free in Linux kernel nvme host driver
Published: December 30, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024123032
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2024-56756)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the nvme_free_host_mem(), __nvme_alloc_host_mem() and kfree() functions in drivers/nvme/host/pci.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3c2fb1ca8086eb139b2a551358137525ae8e0d7a
- https://git.kernel.org/stable/c/452f9ddd12bebc04cef741e8ba3806bf0e1fd015
- https://git.kernel.org/stable/c/582d9ed999b004fb1d415ecbfa86d4d8df455269
- https://git.kernel.org/stable/c/6d0f599db73b099aa724a12736369c4d4d92849d
- https://git.kernel.org/stable/c/869cf50b9c9d1059f5223f79ef68fc0bc6210095
- https://git.kernel.org/stable/c/ac22240540e0c5230d8c4138e3778420b712716a
- https://git.kernel.org/stable/c/cee3bff51a35cab1c5d842d409a7b11caefe2386
- https://git.kernel.org/stable/c/fb96d5cfa97a7363245b3dd523f475b04296d87b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.120