CVE-2025-40263Input: cros_ec_keyb - fix an invalid memory access
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% 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: Input: cros_ec_keyb - fix an invalid memory access If cros_ec_keyb_register_matrix() isn't called (due to `buttons_switches_only`) in cros_ec_keyb_probe(), `ckdev->idev` remains NULL. An invalid memory access is observed in cros_ec_keyb_process() when receiving an EC_MKBP_EVENT_KEY_MATRIX event in cros_ec_keyb_work() in such case. Unable to handle kernel read from unreadable memory at virtual address 0000000000000028 ... x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: input_event cros_ec_keyb_work blocking_notifier_call_chain ec_irq_thread It's still unknown about why the kernel receives such malformed event, in any cases, the kernel shouldn't access `ckdev->idev` and friends if the driver doesn't intend to initialize them.
Timeline
ID reserved
By Linux
- 8 months later
· 8 months later
Published
- 6 months later
· 6 months 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: Deferred.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% 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 ca1eadbfcd36bec73f2a2111c28e8c7e9e8ae6c0 – < d74864291cb8bd784d44d1d02e87109cf88666bb
- affected ca1eadbfcd36bec73f2a2111c28e8c7e9e8ae6c0 – < 9cf59f4724a9ee06ebb06c76b8678ac322e850b7
- affected ca1eadbfcd36bec73f2a2111c28e8c7e9e8ae6c0 – < 6d81068685154535af06163eb585d6d9663ec7ec
- affected ca1eadbfcd36bec73f2a2111c28e8c7e9e8ae6c0 – < 2d251c15c27e2dd16d6318425d2f7260cbd47d39
- affected ca1eadbfcd36bec73f2a2111c28e8c7e9e8ae6c0 – < e08969c4d65ac31297fcb4d31d4808c789152f68
- affected 5.19
- unaffected < 5.19
- unaffected 6.1.159 – ≤ 6.1.*
- unaffected 6.6.118 – ≤ 6.6.*
- unaffected 6.12.60 – ≤ 6.12.*
- unaffected 6.17.10 – ≤ 6.17.*
- unaffected 6.18 – ≤ *
References
References6
- https://git.kernel.org/stable/c/d74864291cb8bd784d44d1d02e87109cf88666bb (opens in a new tab)
- https://git.kernel.org/stable/c/9cf59f4724a9ee06ebb06c76b8678ac322e850b7 (opens in a new tab)
- https://git.kernel.org/stable/c/6d81068685154535af06163eb585d6d9663ec7ec (opens in a new tab)
- https://git.kernel.org/stable/c/2d251c15c27e2dd16d6318425d2f7260cbd47d39 (opens in a new tab)
- https://git.kernel.org/stable/c/e08969c4d65ac31297fcb4d31d4808c789152f68 (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html (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-2025-201194 (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-2025-40263)Record last updated .