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CVE-2022-50815

ext2: Add sanity checks for group and filesystem size

N/A
Published: December 30, 2025 at 12:08 PM UTC
Updated: June 17, 2026 at 05:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: ext2: Add sanity checks for group and filesystem size Add sanity check that filesystem size does not exceed the underlying device size and that group size is big enough so that metadata can fit into it. This avoid trying to mount some crafted filesystems with extremely large group counts.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
2.6.12 ≤ v < 5.19.172.6.12 ≤ v < 6.0.32.6.12 ≤ v < 6.11da177e4c3f41524e886b7f1b8a0c1fc7321cac22.6.12
Vendor states this is fixed in 321440079763998076b75e0c802524e2218a7d97 (fixed)
Vendor states this is fixed in 40ff52527daec00cf1530c17a95636916ddd3b38 (fixed)
Vendor states this is fixed in d766f2d1e3e3bd44024a7f971ffcf8b8fbb7c5d2 (fixed)
Vendor states this is fixed in 2.6.12 (unaffected)
Vendor states this is fixed in 5.19.17 (unaffected)
Vendor states this is fixed in 6.0.3 (unaffected)
Vendor states this is fixed in 6.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Source: cverecord
https://git.kernel.org/stable/c/40ff52527daec00cf1530c17a95636916ddd3b38
Source: cverecord
https://git.kernel.org/stable/c/321440079763998076b75e0c802524e2218a7d97
Source: cverecord
https://git.kernel.org/stable/c/d766f2d1e3e3bd44024a7f971ffcf8b8fbb7c5d2

Quick Info

StatusDEFERRED

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