- 5.5MediumCVSS base score
- 0.11%Exploitation in 30 daysEPSS · top 98% 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: comedi: Reinit dev->spinlock between attachments to low-level drivers `struct comedi_device` is the main controlling structure for a COMEDI device created by the COMEDI subsystem. It contains a member `spinlock` containing a spin-lock that is initialized by the COMEDI subsystem, but is reserved for use by a low-level driver attached to the COMEDI device (at least since commit 25436dc9d84f ("Staging: comedi: remove RT code")). Some COMEDI devices (those created on initialization of the COMEDI subsystem when the "comedi.comedi_num_legacy_minors" parameter is non-zero) can be attached to different low-level drivers over their lifetime using the `COMEDI_DEVCONFIG` ioctl command. This can result in inconsistent lock states being reported when there is a mismatch in the spin-lock locking levels used by each low-level driver to which the COMEDI device has been attached. Fix it by reinitializing `dev->spinlock` before calling the low-level driver's `attach` function pointer if `CONFIG_LOCKDEP` is enabled.
Timeline
ID reserved
By Linux
- 7 days later
· 7 days later
Published
- 3 days later
· 3 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.11% · top 98% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected ed9eccbe8970f6eedc1b978c157caf1251a896d4 – < 3181c34b415c5464be9d34bff3e43ef63b747039
- affected ed9eccbe8970f6eedc1b978c157caf1251a896d4 – < 2b1f49e4fdff3ef0f8e9158bbb5b149e06287560
- affected ed9eccbe8970f6eedc1b978c157caf1251a896d4 – < 4d5ffe524903a30e2e0da7d16841a56bec2de55c
- affected ed9eccbe8970f6eedc1b978c157caf1251a896d4 – < c01bcc67a9a692d65508ebd480405b5e77d562b7
- affected ed9eccbe8970f6eedc1b978c157caf1251a896d4 – < 430291d8f3884f57ae0057049b0ca291453e29e1
- affected ed9eccbe8970f6eedc1b978c157caf1251a896d4 – < b89c026227712c367950bbae055a5b31073d3b30
- affected ed9eccbe8970f6eedc1b978c157caf1251a896d4 – < 83134a7a176ce5b4b19b6edecf4360e8d98d1a5a
- affected ed9eccbe8970f6eedc1b978c157caf1251a896d4 – < 4b9a9a6d71e3e252032f959fb3895a33acb5865c
- affected 2.6.29
- unaffected < 2.6.29
- unaffected 5.10.253 – ≤ 5.10.*
- unaffected 5.15.203 – ≤ 5.15.*
- unaffected 6.1.168 – ≤ 6.1.*
- unaffected 6.6.134 – ≤ 6.6.*
- unaffected 6.12.81 – ≤ 6.12.*
- unaffected 6.18.22 – ≤ 6.18.*
- unaffected 6.19.12 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References8
- https://git.kernel.org/stable/c/3181c34b415c5464be9d34bff3e43ef63b747039 (opens in a new tab)
- https://git.kernel.org/stable/c/2b1f49e4fdff3ef0f8e9158bbb5b149e06287560 (opens in a new tab)
- https://git.kernel.org/stable/c/4d5ffe524903a30e2e0da7d16841a56bec2de55c (opens in a new tab)
- https://git.kernel.org/stable/c/c01bcc67a9a692d65508ebd480405b5e77d562b7 (opens in a new tab)
- https://git.kernel.org/stable/c/430291d8f3884f57ae0057049b0ca291453e29e1 (opens in a new tab)
- https://git.kernel.org/stable/c/b89c026227712c367950bbae055a5b31073d3b30 (opens in a new tab)
- https://git.kernel.org/stable/c/83134a7a176ce5b4b19b6edecf4360e8d98d1a5a (opens in a new tab)
- https://git.kernel.org/stable/c/4b9a9a6d71e3e252032f959fb3895a33acb5865c (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-2026-28624 (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-2026-43340)Record last updated .