by Kastro CVE-2026-43125
Linux Linux — dlm: validate length in dlm_search_rsb_tree
Description · from the CVE record
In the Linux kernel, the following vulnerability has been resolved: dlm: validate length in dlm_search_rsb_tree The len parameter in dlm_dump_rsb_name() is not validated and comes from network messages. When it exceeds DLM_RESNAME_MAXLEN, it can cause out-of-bounds write in dlm_search_rsb_tree(). Add length validation to prevent potential buffer overflow.
Affected
ProductAffectedFixed inSource
Linux7210cb7a72a22303cdb225bd1aea28697a17bbae – < 2deafd015ea9a0e75ee5764e20eb1e16bd73efd82deafd015ea9a0e75ee5764e20eb1e16bd73efd8CNA
Linux7210cb7a72a22303cdb225bd1aea28697a17bbae – < 67288113c5e6cf9e659b4065c0ed6f16100e0c7167288113c5e6cf9e659b4065c0ed6f16100e0c71CNA
Linux7210cb7a72a22303cdb225bd1aea28697a17bbae – < 082083c9fbd99422a0370fe2102144a231c9f5d6082083c9fbd99422a0370fe2102144a231c9f5d6CNA
Linux7210cb7a72a22303cdb225bd1aea28697a17bbae – < 5f053a2e7209d326cbbc07738fa6d6893d3074385f053a2e7209d326cbbc07738fa6d6893d307438CNA
Linux7210cb7a72a22303cdb225bd1aea28697a17bbae – < 080e5563f878c64e697b89e7439d730d0daad882080e5563f878c64e697b89e7439d730d0daad882CNA
Linux3.4–CNA
Red Hat Enterprise Linux 7 Extended Lifecycle Supportsee advisory0:3.10.0-1160.155.1.rt56.1307.el7redhat-SADP
Red Hat Enterprise Linux 7 Extended Lifecycle Supportsee advisory0:3.10.0-1160.154.1.el7redhat-SADP
Red Hat Enterprise Linux 8see advisory0:4.18.0-553.132.1.rt7.473.el8_10redhat-SADP
Red Hat Enterprise Linux 8see advisory0:4.18.0-553.132.1.el8_10redhat-SADP
Red Hat Enterprise Linux 8see advisory–redhat-SADP
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportsee advisory0:4.18.0-372.198.1.el8_6redhat-SADP
Scores by source
Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
redhat-SADP (CNA)7.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total