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CVE-2026-31647:
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CVE-2026-31647 | Medium Severity | Armis
CVE-2026-31647:
In the Linux kernel, the following vulnerability has been resolved:
idpf: fix PREEMPT_RT raw/bh spinlock nesting for async VC handling
Switch from using the completion's raw spinlock to a local lock in the
idpf_vc_xn struct. The conversion is safe because complete/_all() are
called outside the lock and there is no reason to share the completion
lock in the current logic. This avoids invalid wait context reported by
the kernel due to the async handler taking BH spinlock:
A numerical rating that indicates how dangerous this vulnerability is.
5.5Medium
Published Date:Apr 24, 2026
CISA KEV Date:*No Data*
Industries Affected:20
Threat Predictions
EPSS Score:0.0
EPSS Percentile:2%
Exploitability
Score:1.8
Attack Vector:LOCAL
Attack Complexity:LOW
Privileges Required:LOW
User Interaction:NONE
Scope:UNCHANGED
Impact
Score:3.6
Confidentiality Impact:NONE
Integrity Impact:NONE
Availability Impact:HIGH
Description Preview
In the Linux kernel, the following vulnerability has been resolved:
idpf: fix PREEMPT_RT raw/bh spinlock nesting for async VC handling
Switch from using the completion's raw spinlock to a local lock in the
idpf_vc_xn struct. The conversion is safe because complete/_all() are
called outside the lock and there is no reason to share the completion
lock in the current logic. This avoids invalid wait context reported by
the kernel due to the async handler taking BH spinlock:
