In the Linux kernel, the following vulnerability has been resolved:
arm64/sme: Set new vector length before reallocating
As part of fixing the allocation of the buffer for SVE state when changing
SME vector length we introduced an immediate reallocation of the SVE state,
this is also done when changing the SVE vector length for consistency.
Unfortunately this reallocation is done prior to writing the new vector
length to the task struct, meaning the allocation is done with the old
vector length and can lead to memory corruption due to an undersized buffer
being used.
Move the update of the vector length before the allocation to ensure that
the new vector length is taken into account.
For some reason this isn't triggering any problems when running tests on
the arm64 fixes branch (even after repeated tries) but is triggering
issues very often after merge into mainline.
References
Configurations
Configuration 1 (hide)
|
History
02 Dec 2025, 19:12
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/05d881b85b48c7ac6a7c92ce00aa916c4a84d052 - Patch | |
| References | () https://git.kernel.org/stable/c/356e711640aea6ed145da9407499388b45264cb4 - Patch | |
| References | () https://git.kernel.org/stable/c/807ada0e4aa3c9090c66009a99fa530c462012c9 - Patch | |
| CWE | CWE-787 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
| First Time |
Linux linux Kernel
Linux |
|
| CPE | cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.1.42:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.4.7:*:*:*:*:*:*:* |
Information
Published : 2025-09-15 14:15
Updated : 2025-12-02 19:12
NVD link : CVE-2023-53184
Mitre link : CVE-2023-53184
CVE.ORG link : CVE-2023-53184
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-787
Out-of-bounds Write