Vulnerability-Lookup

GHSA-2MGC-2J57-PM25

Vulnerability from github – Published: 2026-09-16 12:30 – Updated: 2026-09-16 12:30

Details

In the Linux kernel, the following vulnerability has been resolved:

media: chips-media: wave5: Resume device before setting EOS flag

Setting the EOS flag talks to the firmware via send_firmware_command(), which accesses VPU registers. Both the STREAMOFF path (wave5_vpu_dec_job_abort()) and the V4L2_DEC_CMD_STOP path (wave5_vpu_dec_stop()) can run while the device is runtime suspended, so those register accesses hit powered-down hardware and the SoC raises an asynchronous SError, panicking the kernel:

SError Interrupt on CPU3, code 0x00000000bf000000 -- SError send_firmware_command+0x2c/0x160 [wave5] wave5_vpu_dec_set_bitstream_flag+0x6c/0x80 [wave5] wave5_vpu_dec_update_bitstream_buffer+0x80/0xec [wave5] wave5_vpu_dec_job_abort+0x44/0xa0 [wave5] v4l2_m2m_cancel_job+0x110/0x19c [v4l2_mem2mem] v4l2_m2m_streamoff+0x24/0x140 [v4l2_mem2mem]

Resume the device with pm_runtime_resume_and_get() around the EOS firmware command and release it with pm_runtime_put_autosuspend(), matching the runtime PM handling already done in wave5_vpu_dec_device_run().

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{
  "affected": [],
  "aliases": [
    "CVE-2026-89866"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-16T11:16:54Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: chips-media: wave5: Resume device before setting EOS flag\n\nSetting the EOS flag talks to the firmware via send_firmware_command(),\nwhich accesses VPU registers. Both the STREAMOFF path\n(wave5_vpu_dec_job_abort()) and the V4L2_DEC_CMD_STOP path\n(wave5_vpu_dec_stop()) can run while the device is runtime suspended, so\nthose register accesses hit powered-down hardware and the SoC raises an\nasynchronous SError, panicking the kernel:\n\n  SError Interrupt on CPU3, code 0x00000000bf000000 -- SError\n   send_firmware_command+0x2c/0x160 [wave5]\n   wave5_vpu_dec_set_bitstream_flag+0x6c/0x80 [wave5]\n   wave5_vpu_dec_update_bitstream_buffer+0x80/0xec [wave5]\n   wave5_vpu_dec_job_abort+0x44/0xa0 [wave5]\n   v4l2_m2m_cancel_job+0x110/0x19c [v4l2_mem2mem]\n   v4l2_m2m_streamoff+0x24/0x140 [v4l2_mem2mem]\n\nResume the device with pm_runtime_resume_and_get() around the EOS\nfirmware command and release it with pm_runtime_put_autosuspend(),\nmatching the runtime PM handling already done in\nwave5_vpu_dec_device_run().",
  "id": "GHSA-2mgc-2j57-pm25",
  "modified": "2026-09-16T12:30:39Z",
  "published": "2026-09-16T12:30:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89866"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2215e55ee1e5e69ad53862d968360c5aa63dd3a7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a52e6f7923c17a672135b485ffd96fbd72f46267"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-89866 (GCVE-0-2026-89866)

Vulnerability from cvelistv5 – Published: 2026-09-16 10:31 – Updated: 2026-09-16 10:31

Title

media: chips-media: wave5: Resume device before setting EOS flag

Summary

In the Linux kernel, the following vulnerability has been resolved: media: chips-media: wave5: Resume device before setting EOS flag Setting the EOS flag talks to the firmware via send_firmware_command(), which accesses VPU registers. Both the STREAMOFF path (wave5_vpu_dec_job_abort()) and the V4L2_DEC_CMD_STOP path (wave5_vpu_dec_stop()) can run while the device is runtime suspended, so those register accesses hit powered-down hardware and the SoC raises an asynchronous SError, panicking the kernel: SError Interrupt on CPU3, code 0x00000000bf000000 -- SError send_firmware_command+0x2c/0x160 [wave5] wave5_vpu_dec_set_bitstream_flag+0x6c/0x80 [wave5] wave5_vpu_dec_update_bitstream_buffer+0x80/0xec [wave5] wave5_vpu_dec_job_abort+0x44/0xa0 [wave5] v4l2_m2m_cancel_job+0x110/0x19c [v4l2_mem2mem] v4l2_m2m_streamoff+0x24/0x140 [v4l2_mem2mem] Resume the device with pm_runtime_resume_and_get() around the EOS firmware command and release it with pm_runtime_put_autosuspend(), matching the runtime PM handling already done in wave5_vpu_dec_device_run().

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/2215e55ee1e5e69ad…
https://git.kernel.org/stable/c/a52e6f7923c17a672…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 9707a6254a8a6b978bde811a44fe07d86c229d1c , < 2215e55ee1e5e69ad53862d968360c5aa63dd3a7 (git) Affected: 9707a6254a8a6b978bde811a44fe07d86c229d1c , < a52e6f7923c17a672135b485ffd96fbd72f46267 (git)
Linux	Linux	Affected: 6.8 Unaffected: 0 , < 6.8 (semver) Unaffected: 7.2.5 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2215e55ee1e5e69ad53862d968360c5aa63dd3a7",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "a52e6f7923c17a672135b485ffd96fbd72f46267",
              "status": "affected",
              "version": "9707a6254a8a6b978bde811a44fe07d86c229d1c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
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              "version": "7.2.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.5",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: chips-media: wave5: Resume device before setting EOS flag\n\nSetting the EOS flag talks to the firmware via send_firmware_command(),\nwhich accesses VPU registers. Both the STREAMOFF path\n(wave5_vpu_dec_job_abort()) and the V4L2_DEC_CMD_STOP path\n(wave5_vpu_dec_stop()) can run while the device is runtime suspended, so\nthose register accesses hit powered-down hardware and the SoC raises an\nasynchronous SError, panicking the kernel:\n\n  SError Interrupt on CPU3, code 0x00000000bf000000 -- SError\n   send_firmware_command+0x2c/0x160 [wave5]\n   wave5_vpu_dec_set_bitstream_flag+0x6c/0x80 [wave5]\n   wave5_vpu_dec_update_bitstream_buffer+0x80/0xec [wave5]\n   wave5_vpu_dec_job_abort+0x44/0xa0 [wave5]\n   v4l2_m2m_cancel_job+0x110/0x19c [v4l2_mem2mem]\n   v4l2_m2m_streamoff+0x24/0x140 [v4l2_mem2mem]\n\nResume the device with pm_runtime_resume_and_get() around the EOS\nfirmware command and release it with pm_runtime_put_autosuspend(),\nmatching the runtime PM handling already done in\nwave5_vpu_dec_device_run()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-16T10:31:36.480Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        {
          "url": "https://git.kernel.org/stable/c/a52e6f7923c17a672135b485ffd96fbd72f46267"
        }
      ],
      "title": "media: chips-media: wave5: Resume device before setting EOS flag",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89866",
    "datePublished": "2026-09-16T10:31:36.480Z",
    "dateReserved": "2026-09-11T19:38:34.771Z",
    "dateUpdated": "2026-09-16T10:31:36.480Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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