Bug 2466794 (CVE-2026-43063)

Summary: CVE-2026-43063 kernel: xfs: don't irele after failing to iget in xfs_attri_recover_work
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel's XFS filesystem. When recovering attributes, if the `xlog_recovery_iget*` function fails to obtain a valid pointer, a subsequent `irele` operation attempts to release an invalid memory address. This dangling pointer issue can be exploited by a local attacker, potentially leading to a system crash and a denial of service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-05-05 17:03:05 UTC
In the Linux kernel, the following vulnerability has been resolved:

xfs: don't irele after failing to iget in xfs_attri_recover_work

xlog_recovery_iget* never set @ip to a valid pointer if they return
an error, so this irele will walk off a dangling pointer.  Fix that.