CVE-2026-43125: critical vulnerability in Linux
dlm: validate length in dlm_search_rsb_tree
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 0.5%
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxRelated CVEs — Linux
In the same product, most dangerous first.
CVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 98.1%KEVCVE-2026-46300HIGHnet: skbuff: preserve shared-frag marker during coalescingEPSS 16.1%KEVCVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2024-53104HIGHmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_formatEPSS 3.4%KEVCVE-2025-39682CRITICALtls: fix handling of zero-length records on the rx_listEPSS 3.2%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEV
References
https://access.redhat.com/errata/RHSA-2026:25120https://access.redhat.com/errata/RHSA-2026:25121https://access.redhat.com/errata/RHSA-2026:25217https://access.redhat.com/errata/RHSA-2026:33899https://access.redhat.com/errata/RHSA-2026:33900https://access.redhat.com/errata/RHSA-2026:34094https://access.redhat.com/errata/RHSA-2026:34095https://access.redhat.com/errata/RHSA-2026:35844https://access.redhat.com/errata/RHSA-2026:35863https://access.redhat.com/errata/RHSA-2026:36767https://access.redhat.com/errata/RHSA-2026:41236https://access.redhat.com/errata/RHSA-2026:55761