CVE record · CVE-2026-93800

btrfs: fix use-after-free on reloc root after error in insert_dirty_subvol()

No CVSS scoreEPSS 0.0017 · 6th percentile

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 16:02 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Linux	Linux	affected f32b84d7c977e1906a4781b93b3c93090b6cd675 to before 5a247097c5f94b51ffc991b444d998ad6e85875f git affected 592fbcd50c99b8adf999a2a54f9245caff333139 to before 6372dd394ea907cd85a7a8063db320ec73dfaed0 git affected 592fbcd50c99b8adf999a2a54f9245caff333139 to before 9f599d120b2b79d2d937c3935b7cdf2697514283 git affected 592fbcd50c99b8adf999a2a54f9245caff333139 to before a01837ae174a2a968c245a30e6dd010f50eaf05d git affected 592fbcd50c99b8adf999a2a54f9245caff333139 to before 97a540d72ebcb21853d11f2a56782fe377f358e7 git affected 592fbcd50c99b8adf999a2a54f9245caff333139 to before fda1b6636ff1846f00643e791099db5564b547d9 git affected 592fbcd50c99b8adf999a2a54f9245caff333139 to before 83201804efa4a5168be754e1dfc9b2faee760cac git affected aa18bc1ff8a51f082d5b3b6d07693797637b4028 git affected 4cb0aea2e250eee35ccfac5f5395cd8f3238a9e5 git affected 5.10.36 to before 5.10.271 semver affected 5.11.20 to before 5.12 semver affected 5.12.3 to before 5.13 semver Other versions: unaffected
Linux	Linux	affected 5.13 unaffected before 5.13 semver unaffected 5.10.271 to 5.10., inclusive semver unaffected 5.15.222 to 5.15., inclusive semver unaffected 6.1.189 to 6.1., inclusive semver unaffected 6.6.158 to 6.6., inclusive semver unaffected 6.12.111 to 6.12., inclusive semver unaffected 6.18.53 to 6.18., inclusive semver unaffected 7.2 to *, inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-93800
CNA: Linux
Tags: Linux kernel
Published: 24 Sept 2026
Updated: 3 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

No source has published a CVSS score for this record yet.

CISA KEV Not listed.
EPSS 0.0017, the 6th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 24 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.