CVE-2023-53681 — NULL Pointer Dereference in Linux
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 97.11%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedOct 7
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages4 packages
▶CVEListV5linux/linuxcafe563591446cf80bfbc2fe3bc72a2e36cf1060 — 587b4e8bb5dac682f09280ab35db4632b29d5ac4+7
Patches
🔴Vulnerability Details
2GHSA▶
GHSA-7h48-rq2g-79x4: In the Linux kernel, the following vulnerability has been resolved:
bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent
In so↗2025-10-07
OSV▶
CVE-2023-53681: In the Linux kernel, the following vulnerability has been resolved: bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent In some↗2025-10-07