driver core: fix potential NULL pointer dereference in dev_uevent()
In the Linux kernel, the following vulnerability has been resolved: driver core: fix potential NULL pointer dereference in dev_uevent() If userspace reads "uevent" device attribute at the same time as another threads unbinds the device from its driver, change to dev->driver from a valid pointer to NULL may result in crash. Fix this by using READ_ONCE() when fetching the pointer, and take bus' drivers klist lock to make sure driver instance will not disappear while we access it. Use WRITE_ONCE() when setting the driver pointer to ensure there is no tearing.
CVE-2025-37800
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-2025-37800
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": "16574dccd8f62dc1b585325f8a6a0aab10047ed8",
"lessThan": "abe56be73eb10a677d16066f65ff9d30251f5eee",
"versionType": "git"
},
{
"status": "affected",
"version": "16574dccd8f62dc1b585325f8a6a0aab10047ed8",
"lessThan": "2b344e779d9afd0fcb5ee4000e4d0fc7d8d867eb",
"versionType": "git"
},
{
"status": "affected",
"version": "16574dccd8f62dc1b585325f8a6a0aab10047ed8",
"lessThan": "3781e4b83e174364998855de777e184cf0b62c40",
"versionType": "git"
},
{
"status": "affected",
"version": "16574dccd8f62dc1b585325f8a6a0aab10047ed8",
"lessThan": "18daa52418e7e4629ed1703b64777294209d2622",
"versionType": "git"
}
],
"programFiles": [
"drivers/base/base.h",
"drivers/base/bus.c",
"drivers/base/core.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.22"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.22",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.89",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.26",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.14.5",
"versionType": "semver",
"lessThanOrEqual": "6.14.*"
},
{
"status": "unaffected",
"version": "6.15",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/base/base.h",
"drivers/base/bus.c",
"drivers/base/core.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-37800
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30474 · Revision 1
- Added to Heist Feed
- Publisher date