Bug 2395230 (CVE-2023-53191) - CVE-2023-53191 kernel: irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains
Summary: CVE-2023-53191 kernel: irqchip/alpine-msi: Fix refcount leak in alpine_msix_i...
Keywords:
Status: NEW
Alias: CVE-2023-53191
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: 2025-09-15 15:01 UTC by OSIDB Bzimport
Modified: 2025-11-26 08:37 UTC (History)
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Description OSIDB Bzimport 2025-09-15 15:01:54 UTC 
In the Linux kernel, the following vulnerability has been resolved:

irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains

of_irq_find_parent() returns a node pointer with refcount incremented,
We should use of_node_put() on it when not needed anymore.
Add missing of_node_put() to avoid refcount leak.
Comment 1 Keith Grant 2025-09-15 17:16:50 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091558-CVE-2023-53191-7baa@gregkh/T
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