spi: use generic driver_override infrastructure
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".
CVE-2026-31487
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-31487
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5039563e7c25eccd7fec1de6706011009d1c5665",
"lessThan": "6e8eb467bed6aa1a563dba8f366c9fd76ba0004e",
"versionType": "git"
},
{
"status": "affected",
"version": "5039563e7c25eccd7fec1de6706011009d1c5665",
"lessThan": "eedf220442d13b6d97294e5b0ac8a2c38ee1a1a0",
"versionType": "git"
},
{
"status": "affected",
"version": "5039563e7c25eccd7fec1de6706011009d1c5665",
"lessThan": "c73a58661a760373d08a6883af4f0bb5cc991a67",
"versionType": "git"
},
{
"status": "affected",
"version": "5039563e7c25eccd7fec1de6706011009d1c5665",
"lessThan": "e0ae367a2de06c49aa1de6ec9b1ab6860bbb2cf0",
"versionType": "git"
},
{
"status": "affected",
"version": "5039563e7c25eccd7fec1de6706011009d1c5665",
"lessThan": "cc34d77dd48708d810c12bfd6f5bf03304f6c824",
"versionType": "git"
}
],
"programFiles": [
"drivers/spi/spi.c",
"include/linux/spi/spi.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.20"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.20",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.80",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.21",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.11",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/spi/spi.c",
"include/linux/spi/spi.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-31487
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46128 · Revision 1
- Added to Heist Feed
- Publisher date