CVE-2026-90419 Linux Kernel - Out of Bounds Read

Linux kernel contains an out-of-bounds read vulnerability caused by trusting super-root inode metadata size before nilfs_read_inode_common(), letting attackers craft malformed filesystem images to cause out-of-bounds read, exploit requires crafted filesystem image.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.18% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out of Bounds Read
Impact
Information Disclosure, Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Published
17 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version with the fix applied.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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