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CVE-2022-50300

In the Linux kernel, the following vulnerability has been resolved:

btrfs: fix extent map use-after-free when handling missing device in read_one_chunk

Store the error code before freeing the extent_map. Though it's
reference counted structure, in that function it's the first and last
allocation so this would lead to a potential use-after-free.

The error can happen eg. when chunk is stored on a missing device and
the degraded mount option is missing.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=216721

Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
Diese Information steht angemeldeten Benutzern zur Verfügung.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version < b8e7ed42bc3ca0d0e4191ee394d34962d3624c22
Version adfb69af7d8cb6a3958f75aad1ef4bc96891d116
Status affected
Version < fce3713197ebba239e1c7e02174ed216ea1ee014
Version adfb69af7d8cb6a3958f75aad1ef4bc96891d116
Status affected
Version < 169a4cf46882974d4db6d85eb623ec898e51bbc0
Version adfb69af7d8cb6a3958f75aad1ef4bc96891d116
Status affected
Version < 1742e1c90c3da344f3bb9b1f1309b3f47482756a
Version adfb69af7d8cb6a3958f75aad1ef4bc96891d116
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 4.15
Status affected
Version < 4.15
Version 0
Status unaffected
Version <= 5.15.*
Version 5.15.87
Status unaffected
Version <= 6.0.*
Version 6.0.18
Status unaffected
Version <= 6.1.*
Version 6.1.4
Status unaffected
Version <= *
Version 6.2
Status unaffected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.047
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String