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In the Linux kernel, the following vulnerability has been resolved: RDMA/nldev: Fix locking when accessing mr->pd Sashiko points out that, due to… (CVE-2026-74334)

0
Unknown
Published: 08/15/2026 (08/15/2026, 06:32:30 UTC)
Source: GCVE Database

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/nldev: Fix locking when accessing mr->pd Sashiko points out that, due to rereg_mr, the PD is actually variable and all the touches in nldev are racy. Use mr->device instead of mr->pd->device. Getting the PD restrack ID is more tricky. To avoid disturbing all the happy paths, add an rdma_restrack_sync() operation which is sort of like flush_workqueue() or synchronize_irq(): after it returns, all the old nldev touches to the mr are gone and everything sees the new PD. This makes it safe to reach into the PD pointer.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
GHSA-g8r2-wj85-rq7q
Osv Schema Version
1.4.0
Aliases
["CVE-2026-74334"]
Ecosystems
[]
Database Specific Severity
null
Cvss Version
null

Threat ID: 6a808b6abf8831d5394f6c65

Added to database: 08/15/2026, 15:53:14 UTC

Last updated: 08/15/2026, 15:54:49 UTC

Views: 1

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