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CVE-2023-53681

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CVE-2023-53681

Published: Oct 7, 2025

Modified: May 11, 2026

PUBLISHED

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.

VendorProductVersions

Linux

Linux

affected
cafe563591446cf80bfbc2fe3bc72a2e36cf1060 - < 587b4e8bb5dac682f09280ab35db4632b29d5ac4
affected
cafe563591446cf80bfbc2fe3bc72a2e36cf1060 - < b070f29a61436f6f8a2e3abc7ea4f4be81695198
affected
cafe563591446cf80bfbc2fe3bc72a2e36cf1060 - < a4405f6ee03323410d7b10966fd67b35f71b1944
affected
cafe563591446cf80bfbc2fe3bc72a2e36cf1060 - < f67b0e3081f2a24170280a33ac66f6b112083c03
affected
cafe563591446cf80bfbc2fe3bc72a2e36cf1060 - < 7ecea5ce3dc17339c280c75b58ac93d8c8620d9f

+2 more versions

Linux

Linux

affected
3.10
unaffected
0 - < 3.10
unaffected
4.19.291 - <= 4.19.*
unaffected
5.4.253 - <= 5.4.*
unaffected
5.10.188 - <= 5.10.*

+4 more versions

References

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