CVE-2022-50485

low-risk
Published 2025-10-04

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)

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (6)

Patch https://git.kernel.org/stable/c/2142dfa1de61e25b83198af0308ec7689cca25d3
Patch https://git.kernel.org/stable/c/488a5c2bf7543c3cd3f07a025f2e62be91599430
Patch https://git.kernel.org/stable/c/63b1e9bccb71fe7d7e3ddc9877dbdc85e5d2d023
Patch https://git.kernel.org/stable/c/c0a738875c2e9c8c3366d792f8bf7fe508d5e5a5
Patch https://git.kernel.org/stable/c/f725b290ed79ad61e4f721fee95a287892d8b1ad
Patch https://git.kernel.org/stable/c/f7e6b5548f915d7aa435d0764d41eacfb49c6e09
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal