Bug 2546382 (CVE-2026-98269)

Summary: CVE-2026-98269 kernel: btrfs: abort transaction on failure to update inode for hole punching and reflinking
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, rhel-process-autobot, sghai, sidsharm, suppawar, vlaad, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in the Linux kernel's Btrfs file system. When operations such as hole punching or file cloning encounter an error while updating file metadata, the kernel does not abort the active transaction. A local user could trigger these operations, potentially causing partially updated file structures to be written to disk and resulting in persistent file system corruption.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-10-06 09:10:10 UTC 
In the Linux kernel, the following vulnerability has been resolved:

btrfs: abort transaction on failure to update inode for hole punching and reflinking

If we fail to update the inode we error out without aborting the
transaction, which can result in a persistent inconsistency if after
the failure the transaction is committed, as we have dropped file
extent items from a range and either punched a hole or insert a new file
extent item for that range (for reflinks).

So add the missing transaction abort.
Comment 1 gkamathe 2026-10-10 20:22:23 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98269.mbox