- —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: mtdoops: free page bitmap when the backing MTD is removed mtdoops_notify_add() allocates oops_page_used when the configured MTD device is registered. mtdoops_notify_remove() detaches from that device but leaves the bitmap allocated. If the same MTD device is later registered again, the add path allocates a new bitmap and overwrites the old pointer, leaking one vmalloc allocation per remove/add cycle. This is only visible when the backing MTD device can disappear and be registered again while mtdoops remains loaded, so the usual static MTD case does not expose it. Free the bitmap after unregistering the dumper and flushing the pending workers, then clear the pointer and page count before a later attach can allocate fresh state. Clearing the pointer also keeps the module exit path from freeing the same bitmap a second time after a remove event.
Timeline
ID reserved
By Linux
- 5 days later
· 5 days later
Published
- 33 days later
· 33 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 be95745f01677245a061a8f51473ef5ec8ad008e – < 477d61d54e097e90f748aa18d013805abd56bcbd
- affected be95745f01677245a061a8f51473ef5ec8ad008e – < a91ac71e67c3e01ed9afd9841435bebb930293f8
- affected be95745f01677245a061a8f51473ef5ec8ad008e – < 698944132083d143ef965c0090ee14ba1d9e1a5f
- affected be95745f01677245a061a8f51473ef5ec8ad008e – < f25c804947e0a28c15e73da8e2e0db959cbed716
- affected be95745f01677245a061a8f51473ef5ec8ad008e – < 8414f0e9f707226de20b48c7048179fd86d352fc
- affected be95745f01677245a061a8f51473ef5ec8ad008e – < d06f91a52af11630c9f7e487f6daf242ac310cb8
- affected be95745f01677245a061a8f51473ef5ec8ad008e – < 1e5cd8bc902331ff801df88cbb299029ae062753
- affected be95745f01677245a061a8f51473ef5ec8ad008e – < 956e7da12c114f13c63d126ab1d79c3b6a819060
- affected 2.6.33
- unaffected < 2.6.33
- 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 6.18.51 – ≤ 6.18.*
- unaffected 7.2.5 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/477d61d54e097e90f748aa18d013805abd56bcbd (opens in a new tab)
- https://git.kernel.org/stable/c/a91ac71e67c3e01ed9afd9841435bebb930293f8 (opens in a new tab)
- https://git.kernel.org/stable/c/698944132083d143ef965c0090ee14ba1d9e1a5f (opens in a new tab)
- https://git.kernel.org/stable/c/f25c804947e0a28c15e73da8e2e0db959cbed716 (opens in a new tab)
- https://git.kernel.org/stable/c/8414f0e9f707226de20b48c7048179fd86d352fc (opens in a new tab)
- https://git.kernel.org/stable/c/d06f91a52af11630c9f7e487f6daf242ac310cb8 (opens in a new tab)
- https://git.kernel.org/stable/c/1e5cd8bc902331ff801df88cbb299029ae062753 (opens in a new tab)
- https://git.kernel.org/stable/c/956e7da12c114f13c63d126ab1d79c3b6a819060 (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-2026-80553 (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-2026-89953)Record last updated .