ext4: don't set up encryption key during jbd2 transaction (Linux Linux)

CVE-2022-50436
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.10 % · centile 1 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: don't set up encryption key during jbd2 transaction Commit a80f7fcf1867 ("ext4: fixup ext4_fc_track_* functions' signature") extended the scope of the transaction in ext4_unlink() too far, making it include the call to ext4_find_entry(). However, ext4_find_entry() can deadlock when called from within a transaction because it may need to set up the directory's encryption key. Fix this by restoring the transaction to its original scope.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected a80f7fcf18672ae4971a6b713b58c0d389aa99fe < 23ad034760dd38e12b0e0e1b28b9629f330810a1 ; affected a80f7fcf18672ae4971a6b713b58c0d389aa99fe < 6220ec405571ded17efedc56587190b542adf246 ; affected a80f7fcf18672ae4971a6b713b58c0d389aa99fe < 206dd3acfb9bca54a25b228c7c7c2257eedde09b ; affected a80f7fcf18672ae4971a6b713b58c0d389aa99fe < 1ba993208bcfd691e241483420a2a761d3f15750 ; affected a80f7fcf18672ae4971a6b713b58c0d389aa99fe < 4c0d5778385cb3618ff26a561ce41de2b7d9de70
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