CVE-2026-31487spi: use generic driver_override infrastructure
- 5.5MediumCVSS base score
- 0.12%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: spi: use generic driver_override infrastructure When a driver is probed through __driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a lock, which can cause a UAF. Fix this by using the driver-core driver_override infrastructure taking care of proper locking internally. Note that calling match() from __driver_attach() without the device lock held is intentional. [1] Also note that we do not enable the driver_override feature of struct bus_type, as SPI - in contrast to most other buses - passes "" to sysfs_emit() when the driver_override pointer is NULL. Thus, printing "\n" instead of "(null)\n".
Timeline
ID reserved
By Linux
- 44 days later
· 44 days later
Published
- 7 months later
· 7 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 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)
- 0.12% · top 98% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 5039563e7c25eccd7fec1de6706011009d1c5665 – < 6e8eb467bed6aa1a563dba8f366c9fd76ba0004e
- affected 5039563e7c25eccd7fec1de6706011009d1c5665 – < eedf220442d13b6d97294e5b0ac8a2c38ee1a1a0
- affected 5039563e7c25eccd7fec1de6706011009d1c5665 – < c73a58661a760373d08a6883af4f0bb5cc991a67
- affected 5039563e7c25eccd7fec1de6706011009d1c5665 – < e0ae367a2de06c49aa1de6ec9b1ab6860bbb2cf0
- affected 5039563e7c25eccd7fec1de6706011009d1c5665 – < cc34d77dd48708d810c12bfd6f5bf03304f6c824
- affected 4.20
- unaffected < 4.20
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.80 – ≤ 6.12.*
- unaffected 6.18.21 – ≤ 6.18.*
- unaffected 6.19.11 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References5
- https://git.kernel.org/stable/c/6e8eb467bed6aa1a563dba8f366c9fd76ba0004e (opens in a new tab)
- https://git.kernel.org/stable/c/eedf220442d13b6d97294e5b0ac8a2c38ee1a1a0 (opens in a new tab)
- https://git.kernel.org/stable/c/c73a58661a760373d08a6883af4f0bb5cc991a67 (opens in a new tab)
- https://git.kernel.org/stable/c/e0ae367a2de06c49aa1de6ec9b1ab6860bbb2cf0 (opens in a new tab)
- https://git.kernel.org/stable/c/cc34d77dd48708d810c12bfd6f5bf03304f6c824 (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-2026-24853 (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-2026-31487)Record last updated .