CVE-2026-23250
Null Pointer Dereference in Linux XFS xchk_scrub_create_subord Function
Publication date: 2026-03-18
Last updated on: 2026-03-18
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | 6.2 |
| linux | linux_kernel | 6.10 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is related to the Linux kernel's xfs filesystem code, specifically the function xchk_scrub_create_subord. The issue was that the function did not properly return a NULL pointer when it encountered an out-of-memory condition (ENOMEM). Instead, it returned a mangled ENOMEM value, which caused the callers of this function to not correctly detect the error. The fix involved changing the function to return NULL properly and updating the callers to check for this NULL pointer and then return ENOMEM appropriately.
How can this vulnerability impact me? :
If the function xchk_scrub_create_subord does not correctly signal an out-of-memory error, it could lead to improper error handling in the Linux kernel's xfs filesystem operations. This might cause unexpected behavior or instability when the system runs low on memory during filesystem checks or scrubbing operations. However, the exact impact depends on how this error propagates and is handled in the broader system context.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
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What immediate steps should I take to mitigate this vulnerability?
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