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CVE-2026-45956— drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl()

AI Predicted 7.8 Difficulty: Moderate EPSS 0.03% · P10

Possible ATT&CK Techniques 1AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 16

VendorProductVersion RangeStatus
LinuxLinuxcf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322< 2987642c5213508c6c9e718324c0d5289a92c474affected
cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322< 65d1213baffa363f2eb1117b1dc7acc573b890f8affected
cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322< 875fa28690e93ed5296c31d3344556c6bb867234affected
cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322< 21ca24ba51a2c28bcc4df9d7e5a40b0eb66ab76daffected
cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322< b5fc86d753dd4c281a943b92f0eef02d31af03d7affected
cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322< a540f767642f75240a6c35f6a65b69e44cfcea9daffected
cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322< d3968a0d85b211e197f2f4f06268a7031079e0d0affected
4.3affected
… +8 more rows
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I. Basic Information for CVE-2026-45956

Vulnerability Information
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Vulnerability Title
drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl()
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于exynos-drm驱动中vidi_connection_ioctl()函数错误地使用drm_dev->dev的driver_data进行上下文查找，可能导致空指针取消引用、越界错误或释放后重用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux cf67cc9a29ac19c98bc4fa0e6d14b0c1f592d322 ~ 2987642c5213508c6c9e718324c0d5289a92c474 -
LinuxLinux 4.3 -

II. Public POCs for CVE-2026-45956

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III. Intelligence Information for CVE-2026-45956

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Patches & Fixes for CVE-2026-45956 (7)

Same Patch Batch · Linux · 2026-05-27 · 276 CVEs total

CVE-2026-460399.8 CRITICALrxgk: Fix potential integer overflow in length check
CVE-2026-458989.8 CRITICALRDMA/iwcm: Fix workqueue list corruption by removing work_list
CVE-2026-459889.8 CRITICALrxrpc: Fix re-decryption of RESPONSE packets
CVE-2026-459729.8 CRITICALsmb: client: fix potential UAF and double free in smb2_open_file()
CVE-2026-460439.1 CRITICALRDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
CVE-2026-460568.8 HIGHBluetooth: hci_event: fix potential UAF in SSP passkey handlers
CVE-2026-459458.8 HIGHiommu/vt-d: Fix race condition during PASID entry replacement
CVE-2026-458438.2 HIGHslip: bound decode() reads against the compressed packet length
CVE-2026-460378.2 HIGHipv4: icmp: validate reply type before using icmp_pointers
CVE-2026-460108.1 HIGHrxrpc: Fix error handling in rxgk_extract_token()
CVE-2026-460998.1 HIGHnet: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
CVE-2026-460767.9 HIGHKVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1
CVE-2026-458947.8 HIGHiommu/vt-d: Clear Present bit before tearing down PASID entry
CVE-2026-459597.8 HIGHcrypto: ccp - Fix a crash due to incorrect cleanup usage of kfree
CVE-2026-460117.8 HIGHmedia: mtk-jpeg: fix use-after-free in release path due to uncancelled work
CVE-2026-460157.8 HIGHtcp: call sk_data_ready() after listener migration
CVE-2026-458527.8 HIGHRDMA/rxe: Fix double free in rxe_srq_from_init
CVE-2026-460587.8 HIGHmedia: amphion: Fix race between m2m job_abort and device_run
CVE-2026-458617.8 HIGHgfs2: Fix slab-use-after-free in qd_put
CVE-2026-460537.8 HIGHnet: rds: fix MR cleanup on copy error

Showing top 20 of 276 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-45956

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