CVE-2026-43063
Analyzed Analyzed - Analysis Complete
XFS Filesystem Use-After-Free in Linux Kernel

Publication date: 2026-05-05

Last updated on: 2026-05-29

Assigner: kernel.org

Description
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.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-05-05
Last Modified
2026-05-29
Generated
2026-06-16
AI Q&A
2026-05-05
EPSS Evaluated
2026-06-15
NVD
CVE-2026-43063
EUVD
EUVD-2026-27359
Affected Vendors & Products
Showing 8 associated CPEs
Vendor Product Version / Range
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel From 6.13 (inc) to 6.18.21 (exc)
linux linux_kernel From 6.19 (inc) to 6.19.11 (exc)
linux linux_kernel From 6.10 (inc) to 6.12.80 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability exists in the Linux kernel's XFS filesystem code. Specifically, it involves the function xfs_attri_recover_work where a call to irele is made after a failed iget operation. The xlog_recovery_iget functions do not set the pointer @ip to a valid value if they return an error, which means that the irele function ends up dereferencing a dangling pointer. This can lead to undefined behavior or system instability.

Impact Analysis

The impact of this vulnerability could include system crashes or instability due to the dereferencing of invalid pointers in the kernel. This may lead to denial of service or potential corruption of filesystem data, affecting system reliability and availability.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-43063. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart