CVE-2023-53681 - CVE House
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Status published Unknown CVE-2023-53681

bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent In some specific situations, the return value of __bch_btree_node_alloc may be NULL. This may lead to a potential NULL pointer dereference in caller function like a calling chain : btree_split->bch_btree_node_alloc->__bch_btree_node_alloc. Fix it by initializing the return value in __bch_btree_node_alloc.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
cafe563591446cf80bfbc2fe3bc72a2e36cf1060, 3.10, 0, 4.19.291, 5.4.253, 5.10.188, 5.15.121, 6.1.39, 6.4.4, 6.5

Timeline

Official Publish: October 7th, 2025
Last Modified: May 11th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.