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CVE-2026-23418 | Linux Kernel up to 6.18.16/6.19.6/7.0-rc2 reg_sr xa_store allocation of resources

VulDB Archived Apr 03, 2026 ✓ Full text saved

A vulnerability labeled as critical has been found in Linux Kernel up to 6.18.16/6.19.6/7.0-rc2 . Affected by this issue is the function xa_store of the component reg_sr . The manipulation results in allocation of resources. This vulnerability is reported as CVE-2026-23418 . The attacker must have access to the local network to execute the attack. No exploit exists. The affected component should be upgraded.

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✦ AI Summary · Claude Sonnet

VDB-355093 · CVE-2026-23418 · GCVE-0-2026-23418 LINUX KERNEL UP TO 6.18.16/6.19.6/7.0-RC2 REG_SR XA_STORE ALLOCATION OF RESOURCES HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.5 $0-$5k 0.55+ Summaryinfo A vulnerability marked as critical has been reported in Linux Kernel up to 6.18.16/6.19.6/7.0-rc2. This affects the function xa_store of the component reg_sr. This manipulation causes allocation of resources. This vulnerability appears as CVE-2026-23418. There is no available exploit. It is suggested to upgrade the affected component. Detailsinfo A vulnerability was found in Linux Kernel up to 6.18.16/6.19.6/7.0-rc2. It has been declared as critical. Affected by this vulnerability is the function xa_store of the component reg_sr. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. As an impact it is known to affect availability. The summary by CVE is: In the Linux kernel, the following vulnerability has been resolved: drm/xe/reg_sr: Fix leak on xa_store failure Free the newly allocated entry when xa_store() fails to avoid a memory leak on the error path. v2: use goto fail_free. (Bala) (cherry picked from commit 6bc6fec71ac45f52db609af4e62bdb96b9f5fadb) The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2026-23418 since 01/13/2026. Technical details are known, but no exploit is available. Upgrading to version 6.18.17, 6.19.7 or 7.0-rc3 eliminates this vulnerability. Applying the patch 05e3f01974d09d1b746dedf4144f708b5033e76f/4f461da14c7b226d1c4c179ae69956ccb8e134e2/3091723785def05ebfe6a50866f87a044ae314ba is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version. Productinfo Type Operating System Vendor Linux Name Kernel Version 6.18.0 6.18.1 6.18.2 6.18.3 6.18.4 6.18.5 6.18.6 6.18.7 6.18.8 6.18.9 6.18.10 6.18.11 6.18.12 6.18.13 6.18.14 6.18.15 6.18.16 6.19.0 6.19.1 6.19.2 6.19.3 6.19.4 6.19.5 6.19.6 7.0-rc1 7.0-rc2 License open-source Website Vendor: https://www.kernel.org/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.7 VulDB Meta Temp Score: 5.5 VulDB Base Score: 5.7 VulDB Temp Score: 5.5 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Allocation of resources CWE: CWE-770 / CWE-400 / CWE-404 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Partially Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Kernel 6.18.17/6.19.7/7.0-rc3 Patch: 05e3f01974d09d1b746dedf4144f708b5033e76f/4f461da14c7b226d1c4c179ae69956ccb8e134e2/3091723785def05ebfe6a50866f87a044ae314ba Timelineinfo 01/13/2026 CVE reserved 04/03/2026 +79 days Advisory disclosed 04/03/2026 +0 days VulDB entry created 04/03/2026 +0 days VulDB entry last update Sourcesinfo Vendor: kernel.org Advisory: git.kernel.org Status: Confirmed CVE: CVE-2026-23418 (🔒) GCVE (CVE): GCVE-0-2026-23418 GCVE (VulDB): GCVE-100-355093 Entryinfo Created: 04/03/2026 17:03 Changes: 04/03/2026 17:03 (59) Complete: 🔍 Cache ID: 99:4FC:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸

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