- —Not scoredno CVSS score yet
- 0.22%Exploitation in 30 daysEPSS · top 88% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: mtd: mtdswap: Avoid freeing registered blktrans device twice In mtdswap_add_mtd(), debugfs setup failure after successful blktrans registration can free mbd_dev twice. add_mtd_blktrans_dev() initializes the blktrans device reference and publishes the disk. Once that succeeds, del_mtd_blktrans_dev() tears the disk down and drops the blktrans reference; when that reference reaches zero, blktrans_dev_release() frees the mtd_blktrans_dev. The debugfs failure path called del_mtd_blktrans_dev(mbd_dev), then fell through the common cleanup label and called kfree(mbd_dev) again. Clear the local pointer after deregistration so the common cleanup can still release the mtdswap state without freeing the blktrans object twice. This issue was found by a static analysis checker and confirmed by manual source review.
Timeline
ID reserved
By Linux
Published
- 32 days later
· 32 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.22% · top 88% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected e8e3edb95ce6a146bc774b6cfad3553f4383edc8 – < ecadb9137aeaa0615183f8d23eabea2b45c862f1
- affected e8e3edb95ce6a146bc774b6cfad3553f4383edc8 – < eec130fc9ffbbd08a5d5432683122b79aca2a726
- affected e8e3edb95ce6a146bc774b6cfad3553f4383edc8 – < d5086911d532b82ca070d944aa08ddde00baefe4
- affected e8e3edb95ce6a146bc774b6cfad3553f4383edc8 – < 0ce48c6ddea1a8e675a2eb0221b62a9950788f3c
- affected e8e3edb95ce6a146bc774b6cfad3553f4383edc8 – < a82d93fcfdfd26af17049c34319dfdd079cd1901
- affected e8e3edb95ce6a146bc774b6cfad3553f4383edc8 – < 5c349c533e72af2313c3be0f80a24d7407fa4777
- affected e8e3edb95ce6a146bc774b6cfad3553f4383edc8 – < 37be7bc2c2d09c18e939da20224405864a0090b9
- affected e8e3edb95ce6a146bc774b6cfad3553f4383edc8 – < 779aa4c66a96bf43d2d62982ea1a9096a9128d87
- affected 4.14
- unaffected < 4.14
- unaffected 5.10.270 – ≤ 5.10.*
- unaffected 5.15.221 – ≤ 5.15.*
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/ecadb9137aeaa0615183f8d23eabea2b45c862f1 (opens in a new tab)
- https://git.kernel.org/stable/c/eec130fc9ffbbd08a5d5432683122b79aca2a726 (opens in a new tab)
- https://git.kernel.org/stable/c/d5086911d532b82ca070d944aa08ddde00baefe4 (opens in a new tab)
- https://git.kernel.org/stable/c/0ce48c6ddea1a8e675a2eb0221b62a9950788f3c (opens in a new tab)
- https://git.kernel.org/stable/c/a82d93fcfdfd26af17049c34319dfdd079cd1901 (opens in a new tab)
- https://git.kernel.org/stable/c/5c349c533e72af2313c3be0f80a24d7407fa4777 (opens in a new tab)
- https://git.kernel.org/stable/c/37be7bc2c2d09c18e939da20224405864a0090b9 (opens in a new tab)
- https://git.kernel.org/stable/c/779aa4c66a96bf43d2d62982ea1a9096a9128d87 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-82159 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-93049)Record last updated .