Vulnerability-Lookup

GHSA-53FC-6CWW-57MR

Vulnerability from github – Published: 2026-09-16 12:30 – Updated: 2026-09-16 15:31

Details

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

media: rc: sunxi-cir: Unregister rc device on probe failure

After rc_register_device() succeeds, later probe failures must undo the registration with rc_unregister_device(). The current error path jumps to the allocation cleanup label and only calls rc_free_device(), leaving the rc device registration and resources created by rc_register_device() behind.

Add a registered-device unwind label for the IRQ lookup, IRQ request, and hardware initialization failure paths. Keep rc_free_device() for failures before rc_register_device() succeeds.

Severity

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-89883"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-16T11:16:56Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: rc: sunxi-cir: Unregister rc device on probe failure\n\nAfter rc_register_device() succeeds, later probe failures must undo the\nregistration with rc_unregister_device(). The current error path jumps to\nthe allocation cleanup label and only calls rc_free_device(), leaving the\nrc device registration and resources created by rc_register_device()\nbehind.\n\nAdd a registered-device unwind label for the IRQ lookup, IRQ request, and\nhardware initialization failure paths. Keep rc_free_device() for failures\nbefore rc_register_device() succeeds.",
  "id": "GHSA-53fc-6cww-57mr",
  "modified": "2026-09-16T15:31:00Z",
  "published": "2026-09-16T12:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89883"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4655a591478e4b31a3396695a2457daad9d4c899"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/479aa6fa8c50f1052f1451326ef7d4d586d340c3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4efd7146dcf959afe64e9c51531cd8f82e60eab6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/59951b8a87ef4fb4b5b9409f70ba07663681a040"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5b58d8c206f37525c8217171e1f3e91dd2fa55e5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5e6f5bffaa80fc8ecce348ec0e34fed9d843e47e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/826763adbd8bd3137c5b3756650da473dc6216d5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-89883 (GCVE-0-2026-89883)

Vulnerability from cvelistv5 – Published: 2026-09-16 10:31 – Updated: 2026-09-16 14:39

Title

media: rc: sunxi-cir: Unregister rc device on probe failure

Summary

In the Linux kernel, the following vulnerability has been resolved: media: rc: sunxi-cir: Unregister rc device on probe failure After rc_register_device() succeeds, later probe failures must undo the registration with rc_unregister_device(). The current error path jumps to the allocation cleanup label and only calls rc_free_device(), leaving the rc device registration and resources created by rc_register_device() behind. Add a registered-device unwind label for the IRQ lookup, IRQ request, and hardware initialization failure paths. Keep rc_free_device() for failures before rc_register_device() succeeds.

Severity

7.8 (High)


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

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/4655a591478e4b31a…
https://git.kernel.org/stable/c/4efd7146dcf959afe…
https://git.kernel.org/stable/c/826763adbd8bd3137…
https://git.kernel.org/stable/c/59951b8a87ef4fb4b…
https://git.kernel.org/stable/c/5b58d8c206f37525c…
https://git.kernel.org/stable/c/5e6f5bffaa80fc8ec…
https://git.kernel.org/stable/c/479aa6fa8c50f1052…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f , < 4655a591478e4b31a3396695a2457daad9d4c899 (git) Affected: b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f , < 4efd7146dcf959afe64e9c51531cd8f82e60eab6 (git) Affected: b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f , < 826763adbd8bd3137c5b3756650da473dc6216d5 (git) Affected: b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f , < 59951b8a87ef4fb4b5b9409f70ba07663681a040 (git) Affected: b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f , < 5b58d8c206f37525c8217171e1f3e91dd2fa55e5 (git) Affected: b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f , < 5e6f5bffaa80fc8ecce348ec0e34fed9d843e47e (git) Affected: b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f , < 479aa6fa8c50f1052f1451326ef7d4d586d340c3 (git)
Linux	Linux	Affected: 3.17 Unaffected: 0 , < 3.17 (semver) Unaffected: 5.15.221 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.110 , ≤ 6.12.* (semver) Unaffected: 6.18.51 , ≤ 6.18.* (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/rc/sunxi-cir.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4655a591478e4b31a3396695a2457daad9d4c899",
              "status": "affected",
              "version": "b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f",
              "versionType": "git"
            },
            {
              "lessThan": "4efd7146dcf959afe64e9c51531cd8f82e60eab6",
              "status": "affected",
              "version": "b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f",
              "versionType": "git"
            },
            {
              "lessThan": "826763adbd8bd3137c5b3756650da473dc6216d5",
              "status": "affected",
              "version": "b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f",
              "versionType": "git"
            },
            {
              "lessThan": "59951b8a87ef4fb4b5b9409f70ba07663681a040",
              "status": "affected",
              "version": "b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f",
              "versionType": "git"
            },
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              "version": "b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f",
              "versionType": "git"
            },
            {
              "lessThan": "5e6f5bffaa80fc8ecce348ec0e34fed9d843e47e",
              "status": "affected",
              "version": "b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f",
              "versionType": "git"
            },
            {
              "lessThan": "479aa6fa8c50f1052f1451326ef7d4d586d340c3",
              "status": "affected",
              "version": "b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f",
              "versionType": "git"
            }
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          "product": "Linux",
          "programFiles": [
            "drivers/media/rc/sunxi-cir.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.17"
            },
            {
              "lessThan": "3.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.221",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.188",
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                {
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                },
                {
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                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.51",
                  "versionStartIncluding": "3.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.5",
                  "versionStartIncluding": "3.17",
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                },
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                  "versionStartIncluding": "3.17",
                  "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: rc: sunxi-cir: Unregister rc device on probe failure\n\nAfter rc_register_device() succeeds, later probe failures must undo the\nregistration with rc_unregister_device(). The current error path jumps to\nthe allocation cleanup label and only calls rc_free_device(), leaving the\nrc device registration and resources created by rc_register_device()\nbehind.\n\nAdd a registered-device unwind label for the IRQ lookup, IRQ request, and\nhardware initialization failure paths. Keep rc_free_device() for failures\nbefore rc_register_device() succeeds."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is in sunxi_ir_probe() of the Allwinner CIR platform driver; after a failed probe the leftover rc-core/lirc/input device is reached by opening local /dev/lirc* or /dev/input/event* nodes, not via network packets, Bluetooth, or IR/USB injection.\nAC:L - After rc_register_device() succeeds, IRQ lookup (including -EPROBE_DEFER), request_irq, or sunxi_ir_hw_init failure calls only rc_free_device(); once the leaked rc/lirc node exists, LIRC_SET_REC_TIMEOUT and similar ioctls deterministically use dangling rc_dev-\u003epriv with no attacker-uncontrollable race.\nPR:L - A low-privileged local user who can open the leaked /dev/lirc* or input event node (typical input-group/udev access on Allwinner STBs, tablets, and SBCs) can ioctl the leftover rc device; bind/unbind is CAP_SYS_ADMIN, but the higher-severity scenario is exploiting an already leaked node.\nUI:N - The attacker opens the leftover lirc or input device and issues ioctls themselves; no victim must mount a filesystem, plug a device, or otherwise interact.\nS:U - Use-after-free of the probe-owned sunxi_ir object and leftover rc-core state stays in the host kernel and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - Failed probe leaves the rc device registered while devres frees the sunxi_ir object that rc_dev-\u003epriv still points at, a slab use-after-free; per kernel CVSS guidance that primitive enables arbitrary kernel read.\nI:H - sunxi_ir_set_timeout() performs CIR MMIO writes through freed ir-\u003ebase, and leftover s_timeout/ir_raw callbacks can be redirected after heap reuse, yielding arbitrary write and control-flow hijack.\nA:H - Using the leftover lirc/input node dereferences freed sunxi_ir state or writes unmapped CIR MMIO, causing kernel oops/panic; any use-after-free is high availability impact."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-16T14:39:34.436Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
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        },
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          "url": "https://git.kernel.org/stable/c/4efd7146dcf959afe64e9c51531cd8f82e60eab6"
        },
        {
          "url": "https://git.kernel.org/stable/c/826763adbd8bd3137c5b3756650da473dc6216d5"
        },
        {
          "url": "https://git.kernel.org/stable/c/59951b8a87ef4fb4b5b9409f70ba07663681a040"
        },
        {
          "url": "https://git.kernel.org/stable/c/5b58d8c206f37525c8217171e1f3e91dd2fa55e5"
        },
        {
          "url": "https://git.kernel.org/stable/c/5e6f5bffaa80fc8ecce348ec0e34fed9d843e47e"
        },
        {
          "url": "https://git.kernel.org/stable/c/479aa6fa8c50f1052f1451326ef7d4d586d340c3"
        }
      ],
      "title": "media: rc: sunxi-cir: Unregister rc device on probe failure",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89883",
    "datePublished": "2026-09-16T10:31:48.378Z",
    "dateReserved": "2026-09-11T19:38:34.772Z",
    "dateUpdated": "2026-09-16T14:39:34.436Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-53FC-6CWW-57MR

CVE-2026-89883 (GCVE-0-2026-89883)

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