Bug 2460661 (CVE-2026-31447)
| Summary: | CVE-2026-31447 kernel: ext4: reject mount if bigalloc with s_first_data_block != 0 | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | Keywords: | Security |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in the `ext4` filesystem component of the Linux kernel. This vulnerability occurs when a local user attempts to mount an `ext4` filesystem that is configured with `bigalloc` and a non-zero `s_first_data_block` value, a configuration that is not supported. The consequence is a Denial of Service (DoS), as the system will reject the mount operation, preventing access to the filesystem.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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Description
OSIDB Bzimport
2026-04-22 15:03:50 UTC
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