Bug 2454836 (CVE-2026-23470) - CVE-2026-23470 kernel: drm/imagination: Fix deadlock in soft reset sequence
Summary: CVE-2026-23470 kernel: drm/imagination: Fix deadlock in soft reset sequence
Keywords:
Status: NEW
Alias: CVE-2026-23470
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
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Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-03 16:03 UTC by OSIDB Bzimport
Modified: 2026-04-03 18:25 UTC (History)
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Description OSIDB Bzimport 2026-04-03 16:03:26 UTC 
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.
Comment 1 Jon Moroney 2026-04-03 18:22:18 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026040322-CVE-2026-23470-a491@gregkh/T
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