{"id":"CVE-2023-53681","summary":"bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbcache: Fix __bch_btree_node_alloc to make the failure behavior consistent\n\nIn some specific situations, the return value of __bch_btree_node_alloc\nmay be NULL. This may lead to a potential NULL pointer dereference in\ncaller function like a calling chain :\nbtree_split-\u003ebch_btree_node_alloc-\u003e__bch_btree_node_alloc.\n\nFix it by initializing the return value in __bch_btree_node_alloc.","modified":"2026-04-02T09:44:46.877179Z","published":"2025-10-07T15:21:35.315Z","related":["SUSE-SU-2025:21040-1","SUSE-SU-2025:21052-1","SUSE-SU-2025:21056-1","SUSE-SU-2025:21064-1","SUSE-SU-2025:4057-1","SUSE-SU-2025:4111-1","SUSE-SU-2025:4128-1","SUSE-SU-2025:4132-1","SUSE-SU-2025:4139-1","SUSE-SU-2025:4140-1","SUSE-SU-2025:4141-1","SUSE-SU-2025:4149-1","SUSE-SU-2025:4189-1","SUSE-SU-2025:4301-1","SUSE-SU-2025:4320-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53681.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/4514847aee18d9391a0cf3aad75d3567c72795a4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/587b4e8bb5dac682f09280ab35db4632b29d5ac4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7ecea5ce3dc17339c280c75b58ac93d8c8620d9f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/80fca8a10b604afad6c14213fdfd816c4eda3ee4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a4405f6ee03323410d7b10966fd67b35f71b1944"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b070f29a61436f6f8a2e3abc7ea4f4be81695198"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f67b0e3081f2a24170280a33ac66f6b112083c03"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53681.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53681"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"cafe563591446cf80bfbc2fe3bc72a2e36cf1060"},{"fixed":"587b4e8bb5dac682f09280ab35db4632b29d5ac4"},{"fixed":"b070f29a61436f6f8a2e3abc7ea4f4be81695198"},{"fixed":"a4405f6ee03323410d7b10966fd67b35f71b1944"},{"fixed":"f67b0e3081f2a24170280a33ac66f6b112083c03"},{"fixed":"7ecea5ce3dc17339c280c75b58ac93d8c8620d9f"},{"fixed":"4514847aee18d9391a0cf3aad75d3567c72795a4"},{"fixed":"80fca8a10b604afad6c14213fdfd816c4eda3ee4"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53681.json"}}],"schema_version":"1.7.5"}