Local service interruption via dw_dp_bind resource leaks
Published Feb 14, 2026 · Updated Feb 14, 2026
Resource leaks in Linux Kernel 6.18 through 6.18.7 allow local users to interrupt service by triggering dw_dp_bind error paths. The dw_dp_bind() function continues after drm_bridge_attach() failure, omits drm_dp_aux_unregister() across later failures, and returns the wrong IRQ error pointer. Local low-privileged access and a failing Synopsys DisplayPort bridge initialization path are required; the documented outcome is availability loss from leaked AUX resources or inconsistent cleanup.
Summary
What happened
Resource leaks in Linux Kernel 6.18 through 6.18.7 allow local users to interrupt service by triggering dw_dp_bind error paths. The dw_dp_bind() function continues after drm_bridge_attach() failure, omits drm_dp_aux_unregister() across later failures, and returns the wrong IRQ error pointer. Local low-privileged access and a failing Synopsys DisplayPort bridge initialization path are required; the documented outcome is availability loss from leaked AUX resources or inconsistent cleanup.
The record
- CVE
- CVE-2026-23132
- Published
- Feb 14, 2026
- Updated
- Feb 14, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux Kernel
- Classifications
- T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 14, 2026CVE publishedPublication date reported by the CVE source.
- Feb 14, 2026Record updatedLatest update available in the CVE record.
Exploitability
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Is a vulnerable build present?
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- Affected versionversion=6.18
- Affected versionversion=86eecc3a9c2e06462f6a273fcd24150b6da787de <1a0f69e3c28477b97d3609569b7e8feb4b6162e8
- Affected versionversion=86eecc3a9c2e06462f6a273fcd24150b6da787de <569ed6a73e927a34cae4ae6de1464c0737a5ec44
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Published CVSS scores
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Attacks
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Technologies
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