CVE-2024-26618

2024-03-1100:00:00

ubuntu.com

cve-2024-26618

linux kernel

vulnerability

arm64/sme

allocation

fix

existing storage

state corruption

sve

vector length

unix

6.4 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.5%

JSON

In the Linux kernel, the following vulnerability has been resolved:
arm64/sme: Always exit sme_alloc() early with existing storage When
sme_alloc() is called with existing storage and we are not flushing we will
always allocate new storage, both leaking the existing storage and
corrupting the state. Fix this by separating the checks for flushing and
for existing storage as we do for SVE. Callers that reallocate (eg, due to
changing the vector length) should call sme_free() themselves.

Notes

Author	Note
rodrigo-zaiden	USN-6765-1 for linux-oem-6.5 wrongly stated that this CVE was fixed in version 6.5.0-1022.23. The mentioned notice was revoked and the state of the fix for linux-oem-6.5 was recovered to the previous state.

OSVersionArchitecturePackageVersionFilename
ubuntu23.10noarchlinux< 6.5.0-41.41UNKNOWN
ubuntu23.10noarchlinux-aws< 6.5.0-1021.21UNKNOWN
ubuntu22.04noarchlinux-aws-6.5< anyUNKNOWN
ubuntu23.10noarchlinux-azure< 6.5.0-1022.23UNKNOWN
ubuntu22.04noarchlinux-azure-6.5< 6.5.0-1022.23~22.04.1UNKNOWN
ubuntu23.10noarchlinux-gcp< 6.5.0-1022.24UNKNOWN
ubuntu22.04noarchlinux-gcp-6.5< 6.5.0-1022.24~22.04.1UNKNOWN
ubuntu22.04noarchlinux-hwe-6.5< 6.5.0-41.41~22.04.2UNKNOWN
ubuntu23.10noarchlinux-laptop< 6.5.0-1017.20UNKNOWN
ubuntu23.10noarchlinux-lowlatency< 6.5.0-41.41.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	23.10	noarch	linux	< 6.5.0-41.41	UNKNOWN
ubuntu	23.10	noarch	linux-aws	< 6.5.0-1021.21	UNKNOWN
ubuntu	22.04	noarch	linux-aws-6.5	< any	UNKNOWN
ubuntu	23.10	noarch	linux-azure	< 6.5.0-1022.23	UNKNOWN
ubuntu	22.04	noarch	linux-azure-6.5	< 6.5.0-1022.23~22.04.1	UNKNOWN
ubuntu	23.10	noarch	linux-gcp	< 6.5.0-1022.24	UNKNOWN
ubuntu	22.04	noarch	linux-gcp-6.5	< 6.5.0-1022.24~22.04.1	UNKNOWN
ubuntu	22.04	noarch	linux-hwe-6.5	< 6.5.0-41.41~22.04.2	UNKNOWN
ubuntu	23.10	noarch	linux-laptop	< 6.5.0-1017.20	UNKNOWN
ubuntu	23.10	noarch	linux-lowlatency	< 6.5.0-41.41.1	UNKNOWN