iomap: add a separate bio_set for iomap_split_ioend

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-80720
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-28 08:16:57 UTC
Updated2026-08-29 07:16:53 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: iomap: add a separate bio_set for iomap_split_ioend iomap_split_ioend can split bios that already come from iomap_ioend_bioset and thus deadlock when the bioset is exhausted. Add a separate bio_set to avoid this deadlock. Christian Brauner <[email protected]> says: Mark iomap_ioend_split_bioset static as it is only used in ioend.c, fixing the sparse warning reported by the kernel test robot.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.001540000 probability, percentile 0.048970000 (date 2026-08-28)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 5fcbd555d48390a8c819ba7fdf55fbfcabe05c80 cfc686a1174aa904dcad9b9a7c5e46b484d27e4e git Not specified
CNA Linux Linux affected 5fcbd555d48390a8c819ba7fdf55fbfcabe05c80 4a869be56e9f6ce7462abcf324ebdefc5de051be git Not specified
CNA Linux Linux affected 5fcbd555d48390a8c819ba7fdf55fbfcabe05c80 c679ce3be6cb63763d68ab9b5d9d73ddc0a40762 git Not specified
CNA Linux Linux affected 6.15 Not specified
CNA Linux Linux unaffected 6.15 semver Not specified
CNA Linux Linux unaffected 6.18.44 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.8 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/c679ce3be6cb63763d68ab9b5d9d73ddc0a40762 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4a869be56e9f6ce7462abcf324ebdefc5de051be 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/cfc686a1174aa904dcad9b9a7c5e46b484d27e4e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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