nbddiscard is a component/tool within the libnbd (Network Block Device) ecosystem that handles block discard (DISCARD/trim) operations in NBD sessions, including scenarios using NBD over SSH.
Overview
nbddiscard is a component/tool within the libnbd (Network Block Device) ecosystem that handles block discard (DISCARD/trim) operations in NBD sessions, including scenarios using NBD over SSH. Its significance stems from security considerations around how discard requests are processed in remote NBD usage, with improper handling potentially enabling misconfigurations or vulnerabilities during NBD+SSH operations.
Related Threat Clusters
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Fedora Releases Security Fixes for libnbd in Multiple Versions
Fedora has issued important security updates for the libnbd library across several versions, including Fedora 41, 42, and 43. These updates address critical performance and security vulnerabilities in the Network Block…
3 articles · Updated November 8, 2025 -
Fedora Releases Security Fixes for libnbd Across Multiple Versions
Fedora has issued important security updates for the libnbd library affecting versions 41, 42, and 43. These updates address critical performance and security vulnerabilities in the Network Block Device protocol, which…
3 articles · Updated November 8, 2025
Recent Intelligence Reports
- Fedora 43: libnbd Important NBD+SSH Security Fix FEDORA-2025 — Linuxsecurity · November 5, 2025