5.5

CVE-2022-50485

ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode

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

ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode

There are many places that will get unhappy (and crash) when ext4_iget()
returns a bad inode. However, if iget the boot loader inode, allows a bad
inode to be returned, because the inode may not be initialized. This
mechanism can be used to bypass some checks and cause panic. To solve this
problem, we add a special iget flag EXT4_IGET_BAD. Only with this flag
we'd be returning bad inode from ext4_iget(), otherwise we always return
the error code if the inode is bad inode.(suggested by Jan Kara)
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.10 < 5.4.229
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.163
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.87
Linux ≫ Linux Kernel Version >= 5.16 < 6.0.18
Linux ≫ Linux Kernel Version >= 6.1 < 6.1.4
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.054
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/2142dfa1de61e25b83198af0308ec7689cca25d3
Patch
https://git.kernel.org/stable/c/c0a738875c2e9c8c3366d792f8bf7fe508d5e5a5
Patch
https://git.kernel.org/stable/c/f7e6b5548f915d7aa435d0764d41eacfb49c6e09
Patch
https://git.kernel.org/stable/c/f725b290ed79ad61e4f721fee95a287892d8b1ad
Patch
https://git.kernel.org/stable/c/488a5c2bf7543c3cd3f07a025f2e62be91599430
Patch
https://git.kernel.org/stable/c/63b1e9bccb71fe7d7e3ddc9877dbdc85e5d2d023
Patch