drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl()
In the Linux kernel, the following vulnerability has been resolved: drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl() vidi_connection_ioctl() retrieves the driver_data from drm_dev->dev to obtain a struct vidi_context pointer. However, drm_dev->dev is the exynos-drm master device, and the driver_data contained therein is not the vidi component device, but a completely different device. This can lead to various bugs, ranging from null pointer dereferences and garbage value accesses to, in unlucky cases, out-of-bounds errors, use-after-free errors, and more. To resolve this issue, we need to store/delete the vidi device pointer in exynos_drm_private->vidi_dev during bind/unbind, and then read this exynos_drm_private->vidi_dev within ioctl() to obtain the correct struct vidi_context pointer.
CVE-2026-45956
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-2026-45956
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": "cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322",
"lessThan": "2987642c5213508c6c9e718324c0d5289a92c474",
"versionType": "git"
},
{
"status": "affected",
"version": "cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322",
"lessThan": "65d1213baffa363f2eb1117b1dc7acc573b890f8",
"versionType": "git"
},
{
"status": "affected",
"version": "cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322",
"lessThan": "875fa28690e93ed5296c31d3344556c6bb867234",
"versionType": "git"
},
{
"status": "affected",
"version": "cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322",
"lessThan": "21ca24ba51a2c28bcc4df9d7e5a40b0eb66ab76d",
"versionType": "git"
},
{
"status": "affected",
"version": "cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322",
"lessThan": "e1aed617eb80b49eac2f8c7bb7a0990f641dd59b",
"versionType": "git"
},
{
"status": "affected",
"version": "cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322",
"lessThan": "b5fc86d753dd4c281a943b92f0eef02d31af03d7",
"versionType": "git"
},
{
"status": "affected",
"version": "cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322",
"lessThan": "a540f767642f75240a6c35f6a65b69e44cfcea9d",
"versionType": "git"
},
{
"status": "affected",
"version": "cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322",
"lessThan": "d3968a0d85b211e197f2f4f06268a7031079e0d0",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/exynos/exynos_drm_drv.h",
"drivers/gpu/drm/exynos/exynos_drm_vidi.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.3"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.3",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.253",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.203",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.167",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.130",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.14",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.4",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/exynos/exynos_drm_drv.h",
"drivers/gpu/drm/exynos/exynos_drm_vidi.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-45956
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #46316 · Revision 1
- Added to Heist Feed
- Publisher date