CVE-2026-43125dlm: validate length in dlm_search_rsb_tree
Updated under an hour ago ()
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It affects Linux and 9 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-130
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 7210cb7a72a22303cdb225bd1aea28697a17bbae before 67288113c5e6cf9e659b4065c0ed6f16100e0c71; from 7210cb7a72a22303cdb225bd1aea28697a17bbae before 082083c9fbd99422a0370fe2102144a231c9f5d6; 7210cb7a72a22303cdb225bd1aea28697a17bbae builds before 5f053a2e7209d326cbbc07738fa6d6893d307438; 7210cb7a72a22303cdb225bd1aea28697a17bbae builds before 080e5563f878c64e697b89e7439d730d0daad882 | CNA record |
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support redhat:rhel_extras_rt_els | from 0:3.10.0-1160.155.1.rt56.1307.el7 not affected | CISA ADP |
from 0:3.10.0-1160.154.1.el7 not affected | CISA ADP | |
Red Hat Red Hat Enterprise Linux 8 redhat:enterprise_linux | from 0:4.18.0-553.132.1.rt7.473.el8_10 not affected | CISA ADP |
from 0:4.18.0-372.198.1.el8_6 not affected | CISA ADP | |
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On redhat:rhel_eus_long_life | from 0:4.18.0-372.198.1.el8_6 not affected | CISA ADP |
from 0:4.18.0-477.150.1.el8_8 not affected | CISA ADP | |
from 0:4.18.0-477.150.1.el8_8 not affected | CISA ADP | |
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support redhat:rhel_eus | from 0:5.14.0-570.125.1.el9_6 not affected | CISA ADP |
linux linux_kernel linux:linux_kernel | from 3.4 before 6.12.75; from 6.13 before 6.18.16; from 6.19 before 6.19.6 | NVD |
References
- https://git.kernel.org/stable/c/67288113c5e6cf9e659b4065c0ed6f16100e0c71patch
- https://git.kernel.org/stable/c/082083c9fbd99422a0370fe2102144a231c9f5d6patch
- https://git.kernel.org/stable/c/5f053a2e7209d326cbbc07738fa6d6893d307438patch
- https://git.kernel.org/stable/c/080e5563f878c64e697b89e7439d730d0daad882patch
- https://access.redhat.com/errata/RHSA-2026:25120
- https://access.redhat.com/errata/RHSA-2026:25121
- https://access.redhat.com/errata/RHSA-2026:25217
- https://access.redhat.com/errata/RHSA-2026:33899
- https://access.redhat.com/errata/RHSA-2026:33900
- https://access.redhat.com/errata/RHSA-2026:34094
- https://access.redhat.com/errata/RHSA-2026:34095
- https://access.redhat.com/errata/RHSA-2026:35844
- https://access.redhat.com/errata/RHSA-2026:35863
- https://access.redhat.com/errata/RHSA-2026:36767
- https://access.redhat.com/errata/RHSA-2026:41236
- https://access.redhat.com/errata/RHSA-2026:55761
- https://access.redhat.com/errata/RHSA-2026:55762
- https://access.redhat.com/errata/RHSA-2026:55763
- https://access.redhat.com/errata/RHSA-2026:55837
- https://access.redhat.com/errata/RHSA-2026:56224
- https://access.redhat.com/errata/RHSA-2026:56225
- https://access.redhat.com/errata/RHSA-2026:59091
- https://access.redhat.com/security/cve/CVE-2026-43125
- https://bugzilla.redhat.com/show_bug.cgi?id=2467234
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43125.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.