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CVE-2022-50274

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

media: dvbdev: adopts refcnt to avoid UAF

dvb_unregister_device() is known that prone to use-after-free.
That is, the cleanup from dvb_unregister_device() releases the dvb_device
even if there are pointers stored in file->private_data still refer to it.

This patch adds a reference counter into struct dvb_device and delays its
deallocation until no pointer refers to the object.

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 < ac521bbe3d00fa574e66a9361763f2b37725bc97
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 219b44bf94203bd433aa91b7796475bf656348e5
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 6d18b44bb44e1f4d97dfe0efe92ac0f0984739c2
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 2abd73433872194bccdf1432a0980e4ec5273c2a
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 88a6f8a72d167294c0931c7874941bf37a41b6dd
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < a2f0a08aa613176c9688c81d7b598a7779974991
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 9945d05d6693710574f354c5dbddc47f5101eb77
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 0fc044b2b5e2d05a1fa1fb0d7f270367a7855d79
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version <= 4.14.*
Version 4.14.303
Status unaffected
Version <= 4.19.*
Version 4.19.270
Status unaffected
Version <= 5.4.*
Version 5.4.229
Status unaffected
Version <= 5.10.*
Version 5.10.163
Status unaffected
Version <= 5.15.*
Version 5.15.86
Status unaffected
Version <= 6.0.*
Version 6.0.16
Status unaffected
Version <= 6.1.*
Version 6.1.2
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 0.03% 0.078
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String