CVE-2026-23470 | Linux Kernel up to 6.12.77/6.18.19/6.19.9/7.0-rc4 disable_irq deadlock

VDB-355163 · CVE-2026-23470 · GCVE-0-2026-23470 LINUX KERNEL UP TO 6.12.77/6.18.19/6.19.9/7.0-RC4 DISABLE_IRQ DEADLOCK HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.6 $0-$5k 0.93 Summaryinfo A vulnerability marked as critical has been reported in Linux Kernel up to 6.12.77/6.18.19/6.19.9/7.0-rc4. The affected element is the function disable_irq. The manipulation leads to deadlock. This vulnerability is listed as CVE-2026-23470. There is no available exploit. It is suggested to upgrade the affected component. Detailsinfo A vulnerability was found in Linux Kernel up to 6.12.77/6.18.19/6.19.9/7.0-rc4 and classified as critical. This issue affects the function disable_irq. The manipulation with an unknown input leads to a deadlock vulnerability. Using CWE to declare the problem leads to CWE-833. The product contains multiple threads or executable segments that are waiting for each other to release a necessary lock, resulting in deadlock. Impacted is availability. The summary by CVE is: In the Linux kernel, the following vulnerability has been resolved: drm/imagination: Fix deadlock in soft reset sequence The soft reset sequence is currently executed from the threaded IRQ handler, hence it cannot call disable_irq() which internally waits for IRQ handlers, i.e. itself, to complete. Use disable_irq_nosync() during a soft reset instead. It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2026-23470 since 01/13/2026. The exploitation is known to be difficult. Technical details of the vulnerability are known, but there is no available exploit. Upgrading to version 6.12.78, 6.18.20, 6.19.10 or 7.0-rc5 eliminates this vulnerability. Applying the patch f99e8b813ae5ce8ffd62c33f5753bf0a008af4b1/9497b1f309436971726e229aa6026954ea7c28e9/6f39b48a2d3b1fe83f99477250cd0cd67ca1e1c6/a55c2a5c8d680156495b7b1e2a9f5a3e313ba524 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 6.12.0 6.12.1 6.12.2 6.12.3 6.12.4 6.12.5 6.12.6 6.12.7 6.12.8 6.12.9 6.12.10 6.12.11 6.12.12 6.12.13 6.12.14 6.12.15 6.12.16 6.12.17 6.12.18 6.12.19 6.12.20 6.12.21 6.12.22 6.12.23 6.12.24 6.12.25 6.12.26 6.12.27 6.12.28 6.12.29 6.12.30 6.12.31 6.12.32 6.12.33 6.12.34 6.12.35 6.12.36 6.12.37 6.12.38 6.12.39 6.12.40 6.12.41 6.12.42 6.12.43 6.12.44 6.12.45 6.12.46 6.12.47 6.12.48 6.12.49 6.12.50 6.12.51 6.12.52 6.12.53 6.12.54 6.12.55 6.12.56 6.12.57 6.12.58 6.12.59 6.12.60 6.12.61 6.12.62 6.12.63 6.12.64 6.12.65 6.12.66 6.12.67 6.12.68 6.12.69 6.12.70 6.12.71 6.12.72 6.12.73 6.12.74 6.12.75 6.12.76 6.12.77 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 6.18.17 6.18.18 6.18.19 6.19.0 6.19.1 6.19.2 6.19.3 6.19.4 6.19.5 6.19.6 6.19.7 6.19.8 6.19.9 7.0-rc1 7.0-rc2 7.0-rc3 7.0-rc4 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: 4.8 VulDB Meta Temp Score: 4.6 VulDB Base Score: 4.8 VulDB Temp Score: 4.6 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: Deadlock CWE: CWE-833 / 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 6.12.78/6.18.20/6.19.10/7.0-rc5 Patch: f99e8b813ae5ce8ffd62c33f5753bf0a008af4b1/9497b1f309436971726e229aa6026954ea7c28e9/6f39b48a2d3b1fe83f99477250cd0cd67ca1e1c6/a55c2a5c8d680156495b7b1e2a9f5a3e313ba524 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-2026-23470 (🔒) GCVE (CVE): GCVE-0-2026-23470 GCVE (VulDB): GCVE-100-355163 Entryinfo Created: 04/03/2026 18:16 Changes: 04/03/2026 18:16 (58) Complete: 🔍 Cache ID: 99:029:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸