staging: media: tegra-video: fix device_node use after free (Linux Linux)

CVE-2022-50745
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.19 % · centile 9 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: staging: media: tegra-video: fix device_node use after free At probe time this code path is followed: * tegra_csi_init * tegra_csi_channels_alloc * for_each_child_of_node(node, channel) -- iterates over channels * automatically gets 'channel' * tegra_csi_channel_alloc() * saves into chan->of_node a pointer to the channel OF node * automatically gets and puts 'channel' * now the node saved in chan->of_node has refcount 0, can disappear * tegra_csi_channels_init * iterates over channels * tegra_csi_channel_init -- uses chan->of_node After that, chan->of_node keeps storing the node until the device is removed. of_node_get() the node and of_node_put() it during teardown to avoid any risk.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected 1ebaeb09830f36c1111b72a95420814225bd761c < 5451efb2ca30f3c42b9efb8327ce35b62870dbd3 ; affected 1ebaeb09830f36c1111b72a95420814225bd761c < ce50c612458091d926ccb05d7db11d9f93532db2 ; affected 1ebaeb09830f36c1111b72a95420814225bd761c < 6512c9498fcb97e7c760e3ef86b2272f2c0f765f ; affected 1ebaeb09830f36c1111b72a95420814225bd761c < 0fd003d3c708c80350a815eaf37b8e1114b976cf ; affected 1ebaeb09830f36c1111b72a95420814225bd761c < c4d344163c3a7f90712525f931a6c016bbb35e18
Linux · Linuxaffected 5.10 ; unaffected 0 < 5.10 ; unaffected 5.10.163 ≤ 5.10.* ; unaffected 5.15.87 ≤ 5.15.* ; unaffected 6.0.18 ≤ 6.0.* ; unaffected 6.1.4 ≤ 6.1.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD