github - ghsa-wj9m-5hmc-xhpp

ghsa-wj9m-5hmc-xhpp

Vulnerability from github

Published

2025-09-18 18:30

Modified

2025-09-18 18:30

Details

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

drm: bridge: adv7511: unregister cec i2c device after cec adapter

cec_unregister_adapter() assumes that the underlying adapter ops are callable. For example, if the CEC adapter currently has a valid physical address, then the unregistration procedure will invalidate the physical address by setting it to f.f.f.f. Whence the following kernel oops observed after removing the adv7511 module:

Unable to handle kernel execution of user memory at virtual address 0000000000000000
Internal error: Oops: 86000004 [#1] PREEMPT_RT SMP
Call trace:
 0x0
 adv7511_cec_adap_log_addr+0x1ac/0x1c8 [adv7511]
 cec_adap_unconfigure+0x44/0x90 [cec]
 __cec_s_phys_addr.part.0+0x68/0x230 [cec]
 __cec_s_phys_addr+0x40/0x50 [cec]
 cec_unregister_adapter+0xb4/0x118 [cec]
 adv7511_remove+0x60/0x90 [adv7511]
 i2c_device_remove+0x34/0xe0
 device_release_driver_internal+0x114/0x1f0
 driver_detach+0x54/0xe0
 bus_remove_driver+0x60/0xd8
 driver_unregister+0x34/0x60
 i2c_del_driver+0x2c/0x68
 adv7511_exit+0x1c/0x67c [adv7511]
 __arm64_sys_delete_module+0x154/0x288
 invoke_syscall+0x48/0x100
 el0_svc_common.constprop.0+0x48/0xe8
 do_el0_svc+0x28/0x88
 el0_svc+0x1c/0x50
 el0t_64_sync_handler+0xa8/0xb0
 el0t_64_sync+0x15c/0x160
Code: bad PC value
---[ end trace 0000000000000000 ]---

Protect against this scenario by unregistering i2c_cec after unregistering the CEC adapter. Duly disable the CEC clock afterwards too.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50412"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-18T16:15:44Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: bridge: adv7511: unregister cec i2c device after cec adapter\n\ncec_unregister_adapter() assumes that the underlying adapter ops are\ncallable. For example, if the CEC adapter currently has a valid physical\naddress, then the unregistration procedure will invalidate the physical\naddress by setting it to f.f.f.f. Whence the following kernel oops\nobserved after removing the adv7511 module:\n\n    Unable to handle kernel execution of user memory at virtual address 0000000000000000\n    Internal error: Oops: 86000004 [#1] PREEMPT_RT SMP\n    Call trace:\n     0x0\n     adv7511_cec_adap_log_addr+0x1ac/0x1c8 [adv7511]\n     cec_adap_unconfigure+0x44/0x90 [cec]\n     __cec_s_phys_addr.part.0+0x68/0x230 [cec]\n     __cec_s_phys_addr+0x40/0x50 [cec]\n     cec_unregister_adapter+0xb4/0x118 [cec]\n     adv7511_remove+0x60/0x90 [adv7511]\n     i2c_device_remove+0x34/0xe0\n     device_release_driver_internal+0x114/0x1f0\n     driver_detach+0x54/0xe0\n     bus_remove_driver+0x60/0xd8\n     driver_unregister+0x34/0x60\n     i2c_del_driver+0x2c/0x68\n     adv7511_exit+0x1c/0x67c [adv7511]\n     __arm64_sys_delete_module+0x154/0x288\n     invoke_syscall+0x48/0x100\n     el0_svc_common.constprop.0+0x48/0xe8\n     do_el0_svc+0x28/0x88\n     el0_svc+0x1c/0x50\n     el0t_64_sync_handler+0xa8/0xb0\n     el0t_64_sync+0x15c/0x160\n    Code: bad PC value\n    ---[ end trace 0000000000000000 ]---\n\nProtect against this scenario by unregistering i2c_cec after\nunregistering the CEC adapter. Duly disable the CEC clock afterwards\ntoo.",
  "id": "GHSA-wj9m-5hmc-xhpp",
  "modified": "2025-09-18T18:30:27Z",
  "published": "2025-09-18T18:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50412"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3747465c5da7a11957a34bbb9485d9fc253b91cc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/40cdb02cb9f965732eb543d47f15bef8d10f0f5f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4d4d5bc659206b187263190ad9a03513f625659d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/86ae5170786aea3e1751123ca55700fb9b37b623"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f369fb4deed7ab997cfa703dc85ec08b3adc1af8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2022-50412 (GCVE-0-2022-50412)

Vulnerability from cvelistv5

Published

2025-09-18 16:03

Modified

2025-09-18 16:03

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: drm: bridge: adv7511: unregister cec i2c device after cec adapter cec_unregister_adapter() assumes that the underlying adapter ops are callable. For example, if the CEC adapter currently has a valid physical address, then the unregistration procedure will invalidate the physical address by setting it to f.f.f.f. Whence the following kernel oops observed after removing the adv7511 module: Unable to handle kernel execution of user memory at virtual address 0000000000000000 Internal error: Oops: 86000004 [#1] PREEMPT_RT SMP Call trace: 0x0 adv7511_cec_adap_log_addr+0x1ac/0x1c8 [adv7511] cec_adap_unconfigure+0x44/0x90 [cec] __cec_s_phys_addr.part.0+0x68/0x230 [cec] __cec_s_phys_addr+0x40/0x50 [cec] cec_unregister_adapter+0xb4/0x118 [cec] adv7511_remove+0x60/0x90 [adv7511] i2c_device_remove+0x34/0xe0 device_release_driver_internal+0x114/0x1f0 driver_detach+0x54/0xe0 bus_remove_driver+0x60/0xd8 driver_unregister+0x34/0x60 i2c_del_driver+0x2c/0x68 adv7511_exit+0x1c/0x67c [adv7511] __arm64_sys_delete_module+0x154/0x288 invoke_syscall+0x48/0x100 el0_svc_common.constprop.0+0x48/0xe8 do_el0_svc+0x28/0x88 el0_svc+0x1c/0x50 el0t_64_sync_handler+0xa8/0xb0 el0t_64_sync+0x15c/0x160 Code: bad PC value ---[ end trace 0000000000000000 ]--- Protect against this scenario by unregistering i2c_cec after unregistering the CEC adapter. Duly disable the CEC clock afterwards too.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/3747465c5da7a11957a34bbb9485d9fc253b91cc
	https://git.kernel.org/stable/c/f369fb4deed7ab997cfa703dc85ec08b3adc1af8
	https://git.kernel.org/stable/c/4d4d5bc659206b187263190ad9a03513f625659d
	https://git.kernel.org/stable/c/86ae5170786aea3e1751123ca55700fb9b37b623
	https://git.kernel.org/stable/c/40cdb02cb9f965732eb543d47f15bef8d10f0f5f

Impacted products

Vendor

Product

Version

▼

Linux

Version: 3b1b975003e4a3da4b93ab032487a3ae4afca7b5
Version: 3b1b975003e4a3da4b93ab032487a3ae4afca7b5
Version: 3b1b975003e4a3da4b93ab032487a3ae4afca7b5
Version: 3b1b975003e4a3da4b93ab032487a3ae4afca7b5
Version: 3b1b975003e4a3da4b93ab032487a3ae4afca7b5

Linux

Version: 4.15

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/bridge/adv7511/adv7511_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3747465c5da7a11957a34bbb9485d9fc253b91cc",
              "status": "affected",
              "version": "3b1b975003e4a3da4b93ab032487a3ae4afca7b5",
              "versionType": "git"
            },
            {
              "lessThan": "f369fb4deed7ab997cfa703dc85ec08b3adc1af8",
              "status": "affected",
              "version": "3b1b975003e4a3da4b93ab032487a3ae4afca7b5",
              "versionType": "git"
            },
            {
              "lessThan": "4d4d5bc659206b187263190ad9a03513f625659d",
              "status": "affected",
              "version": "3b1b975003e4a3da4b93ab032487a3ae4afca7b5",
              "versionType": "git"
            },
            {
              "lessThan": "86ae5170786aea3e1751123ca55700fb9b37b623",
              "status": "affected",
              "version": "3b1b975003e4a3da4b93ab032487a3ae4afca7b5",
              "versionType": "git"
            },
            {
              "lessThan": "40cdb02cb9f965732eb543d47f15bef8d10f0f5f",
              "status": "affected",
              "version": "3b1b975003e4a3da4b93ab032487a3ae4afca7b5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/bridge/adv7511/adv7511_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.234",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.234",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.75",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.17",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.3",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: bridge: adv7511: unregister cec i2c device after cec adapter\n\ncec_unregister_adapter() assumes that the underlying adapter ops are\ncallable. For example, if the CEC adapter currently has a valid physical\naddress, then the unregistration procedure will invalidate the physical\naddress by setting it to f.f.f.f. Whence the following kernel oops\nobserved after removing the adv7511 module:\n\n    Unable to handle kernel execution of user memory at virtual address 0000000000000000\n    Internal error: Oops: 86000004 [#1] PREEMPT_RT SMP\n    Call trace:\n     0x0\n     adv7511_cec_adap_log_addr+0x1ac/0x1c8 [adv7511]\n     cec_adap_unconfigure+0x44/0x90 [cec]\n     __cec_s_phys_addr.part.0+0x68/0x230 [cec]\n     __cec_s_phys_addr+0x40/0x50 [cec]\n     cec_unregister_adapter+0xb4/0x118 [cec]\n     adv7511_remove+0x60/0x90 [adv7511]\n     i2c_device_remove+0x34/0xe0\n     device_release_driver_internal+0x114/0x1f0\n     driver_detach+0x54/0xe0\n     bus_remove_driver+0x60/0xd8\n     driver_unregister+0x34/0x60\n     i2c_del_driver+0x2c/0x68\n     adv7511_exit+0x1c/0x67c [adv7511]\n     __arm64_sys_delete_module+0x154/0x288\n     invoke_syscall+0x48/0x100\n     el0_svc_common.constprop.0+0x48/0xe8\n     do_el0_svc+0x28/0x88\n     el0_svc+0x1c/0x50\n     el0t_64_sync_handler+0xa8/0xb0\n     el0t_64_sync+0x15c/0x160\n    Code: bad PC value\n    ---[ end trace 0000000000000000 ]---\n\nProtect against this scenario by unregistering i2c_cec after\nunregistering the CEC adapter. Duly disable the CEC clock afterwards\ntoo."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-18T16:03:56.159Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3747465c5da7a11957a34bbb9485d9fc253b91cc"
        },
        {
          "url": "https://git.kernel.org/stable/c/f369fb4deed7ab997cfa703dc85ec08b3adc1af8"
        },
        {
          "url": "https://git.kernel.org/stable/c/4d4d5bc659206b187263190ad9a03513f625659d"
        },
        {
          "url": "https://git.kernel.org/stable/c/86ae5170786aea3e1751123ca55700fb9b37b623"
        },
        {
          "url": "https://git.kernel.org/stable/c/40cdb02cb9f965732eb543d47f15bef8d10f0f5f"
        }
      ],
      "title": "drm: bridge: adv7511: unregister cec i2c device after cec adapter",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50412",
    "datePublished": "2025-09-18T16:03:56.159Z",
    "dateReserved": "2025-09-17T14:53:07.002Z",
    "dateUpdated": "2025-09-18T16:03:56.159Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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