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CVE-2022-50433

In 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.

Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
This information is available to logged-in users.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
VendorLinux
≫
Product Linux
Default Statusunaffected
Version < 11497fd69cd2282538ec6eb4cda1d16fc061233d
Version 3881ee0b1edce0ece72d24b7c74f46b73bd6dcba
Status affected
Version < 4b017e59f01097f19b938f6dc4dc2c4720701610
Version 3881ee0b1edce0ece72d24b7c74f46b73bd6dcba
Status affected
VendorLinux
≫
Product Linux
Default Statusaffected
Version 6.0
Status affected
Version < 6.0
Version 0
Status unaffected
Version <= 6.0.*
Version 6.0.4
Status unaffected
Version <= *
Version 6.1
Status unaffected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.02% 0.052
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string