Kernel memory disclosure via failed probe unwinding
Published Mar 25, 2026 · Updated Mar 25, 2026
Out-of-bounds access in the Rocket accelerator driver in Linux Kernel allows local users to read kernel memory and interrupt service. In rocket_probe(), a rocket_core_init() failure leaves the core counter incremented and the first failed core's DRM device allocated instead of unwinding both changes. Reachability requires local low-privileged access and a Rocket core probe failure, including EPROBE_DEFER; the stale bookkeeping then permits out-of-bounds access.
Summary
What happened
Out-of-bounds access in the Rocket accelerator driver in Linux Kernel allows local users to read kernel memory and interrupt service. In rocket_probe(), a rocket_core_init() failure leaves the core counter incremented and the first failed core's DRM device allocated instead of unwinding both changes. Reachability requires local low-privileged access and a Rocket core probe failure, including EPROBE_DEFER; the stale bookkeeping then permits out-of-bounds access.
The record
- CVE
- CVE-2026-23305
- Published
- Mar 25, 2026
- Updated
- Mar 25, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux Kernel
- Classifications
- CWE-125
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 25, 2026CVE publishedPublication date reported by the CVE source.
- Mar 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0810d5ad88a18f1e6d549853a388ad0316f74e36 <34f4495a7f72895776b81969639f527c99eb12b9
- Affected versionversion=0810d5ad88a18f1e6d549853a388ad0316f74e36 <7fc4b49474c836cee7d9801abf05e0198fcbfa74
- Affected versionversion=0810d5ad88a18f1e6d549853a388ad0316f74e36 <eeaf28c8f4defe371a008a5ddefaf18abf534f81
- Affected versionversion=6.18
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What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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