#VU100167 Use-after-free in Linux kernel - CVE-2024-50226
Published: November 10, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU100167
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-50226
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the mock_decoder_commit() function in tools/testing/cxl/test/cxl.c, within the cxl_region_invalidate_memregion(), cxl_region_decode_reset(), commit_store() and cxl_region_detach() functions in drivers/cxl/core/region.c, within the cxl_decoder_commit() and cxl_decoder_reset() functions in drivers/cxl/core/hdm.c, within the device_for_each_child_reverse() function in drivers/base/core.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/8e1b52c15c81106456437f8e49575040e489e355
- https://git.kernel.org/stable/c/78c8454fdce0eeee962be004eb6d99860c80dad1
- https://git.kernel.org/stable/c/101c268bd2f37e965a5468353e62d154db38838e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.60