platform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NULL
In the Linux kernel, the following vulnerability has been resolved: platform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NULL Every platform driver can be forced to match a device that doesn't match its list of device IDs because of device_match_driver_override(), so platform drivers that rely on the existence of a device's ACPI companion object need to verify its presence. mlxbf_pmc_probe() passes the result of ACPI_COMPANION() to acpi_device_hid(), which dereferences it, so force-binding the driver to a device without an ACPI companion leads to a NULL pointer dereference. Accordingly, add a requisite ACPI_COMPANION() check against NULL to the mlxbf-pmc driver and return -ENODEV when the companion is missing.
CVE-2026-93115
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-2026-93115
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": "1a218d312e65ec396b2739056a8ea78493015f21",
"lessThan": "950d8e8375f3ff4787de51b7bdf8dd23a3ad6547",
"versionType": "git"
},
{
"status": "affected",
"version": "1a218d312e65ec396b2739056a8ea78493015f21",
"lessThan": "fdfb736282b9665c0169df0c4152ec91fdea2767",
"versionType": "git"
},
{
"status": "affected",
"version": "1a218d312e65ec396b2739056a8ea78493015f21",
"lessThan": "bf1e0cc5cc1d4e71b699fc98cc9198ead0ed53e0",
"versionType": "git"
},
{
"status": "affected",
"version": "1a218d312e65ec396b2739056a8ea78493015f21",
"lessThan": "a75b84119e56fc34b0f1403f3b93d357a55dabb6",
"versionType": "git"
},
{
"status": "affected",
"version": "1a218d312e65ec396b2739056a8ea78493015f21",
"lessThan": "71ba8b6e28f7a83b724036f5de07e03bb5473286",
"versionType": "git"
},
{
"status": "affected",
"version": "1a218d312e65ec396b2739056a8ea78493015f21",
"lessThan": "d25dd08268aeaceb485189aaa84aa6d68a460291",
"versionType": "git"
},
{
"status": "affected",
"version": "1a218d312e65ec396b2739056a8ea78493015f21",
"lessThan": "c38cce70adef874c2a7b5132c14d6c221401deff",
"versionType": "git"
}
],
"programFiles": [
"drivers/platform/mellanox/mlxbf-pmc.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.11"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.11",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.221",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/platform/mellanox/mlxbf-pmc.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-93115
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #37841 · Revision 1
- Added to Heist Feed
- Publisher date