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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
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 < 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
VendorLinux
≫
Product 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
Type Source Score Percentile
EPSS FIRST.org 0.03% 0.078
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string