liveupdate: fix u-a-f in luo_file_unpreserve_files() and luo_file_finish()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74369
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:22:38 UTC
Updated2026-08-15 06:22:38 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: liveupdate: fix u-a-f in luo_file_unpreserve_files() and luo_file_finish() In luo_file_unpreserve_files() and luo_file_finish(), reorder module_put() and xa_erase() to ensure the file handler module remains pinned while its operations are being accessed. Specifically, luo_get_id() dereferences fh->ops->get_id, so the module reference must be held until after xa_erase() (which calls luo_get_id) completes. For luo_file_finish(), this requires moving the module_put() call out of the luo_file_finish_one() helper and into the main loop of luo_file_finish() itself.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 00d0b372374f2528394aabf7b1f53f8dafe294de f7fca3db635022429382cf26e5b08b33558e375d git Not specified
CNA Linux Linux affected 00d0b372374f2528394aabf7b1f53f8dafe294de 291dcd37c8c8f8f8e1bccc92228f44bf371762a8 git Not specified
CNA Linux Linux affected 7.1 Not specified
CNA Linux Linux unaffected 7.1 semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/f7fca3db635022429382cf26e5b08b33558e375d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/291dcd37c8c8f8f8e1bccc92228f44bf371762a8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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