n the Linux kernel, the following vulnerability has been resolved: efi: ssdt: Don't free memory if ACPI table was loaded successfully Amadeusz reports KASAN use-after-free errors introduced by commit 3881ee0b1edc ("efi: avoid efivars layer when loading SSDTs from variables"). The problem appears to be that the memory that holds the new ACPI table is now freed unconditionally, instead of only when the ACPI core reported a failure to load the table. So let's fix this, by omitting the kfree() on success.
Configuration 1 (hide)
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20 Jan 2026, 15:33
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
| First Time |
Linux linux Kernel
Linux |
|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* |
|
| CWE | CWE-416 | |
| References | () https://git.kernel.org/stable/c/11497fd69cd2282538ec6eb4cda1d16fc061233d - Patch | |
| References | () https://git.kernel.org/stable/c/4b017e59f01097f19b938f6dc4dc2c4720701610 - Patch |
02 Oct 2025, 19:12
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Published : 2025-10-01 12:15
Updated : 2026-01-20 15:33
NVD link : CVE-2022-50433
Mitre link : CVE-2022-50433
CVE.ORG link : CVE-2022-50433
JSON object : View
Use After Free