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

Vulnerability from cvelistv5 – Published: 2025-09-18 16:03 – Updated: 2026-05-11 19:18
VLAI
Title
drm: bridge: adv7511: unregister cec i2c device after cec adapter
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 19:09 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3b1b975003e4a3da4b93ab032487a3ae4afca7b5 , < 3747465c5da7a11957a34bbb9485d9fc253b91cc (git)
Affected: 3b1b975003e4a3da4b93ab032487a3ae4afca7b5 , < f369fb4deed7ab997cfa703dc85ec08b3adc1af8 (git)
Affected: 3b1b975003e4a3da4b93ab032487a3ae4afca7b5 , < 4d4d5bc659206b187263190ad9a03513f625659d (git)
Affected: 3b1b975003e4a3da4b93ab032487a3ae4afca7b5 , < 86ae5170786aea3e1751123ca55700fb9b37b623 (git)
Affected: 3b1b975003e4a3da4b93ab032487a3ae4afca7b5 , < 40cdb02cb9f965732eb543d47f15bef8d10f0f5f (git)
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Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 5.10.234 , ≤ 5.10.* (semver)
Unaffected: 5.15.75 , ≤ 5.15.* (semver)
Unaffected: 5.19.17 , ≤ 5.19.* (semver)
Unaffected: 6.0.3 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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      "cve": "CVE-2022-50412",
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-50412",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50412.json",
      "version": "34"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-50412\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T19:09:15.618187Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"description\": \"CWE-noinfo Not enough information\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T19:09:11.023Z\"}}], \"cna\": {\"title\": \"drm: bridge: adv7511: unregister cec i2c device after cec adapter\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3b1b975003e4a3da4b93ab032487a3ae4afca7b5\", \"lessThan\": \"3747465c5da7a11957a34bbb9485d9fc253b91cc\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3b1b975003e4a3da4b93ab032487a3ae4afca7b5\", \"lessThan\": \"f369fb4deed7ab997cfa703dc85ec08b3adc1af8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3b1b975003e4a3da4b93ab032487a3ae4afca7b5\", \"lessThan\": \"4d4d5bc659206b187263190ad9a03513f625659d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3b1b975003e4a3da4b93ab032487a3ae4afca7b5\", \"lessThan\": \"86ae5170786aea3e1751123ca55700fb9b37b623\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3b1b975003e4a3da4b93ab032487a3ae4afca7b5\", \"lessThan\": \"40cdb02cb9f965732eb543d47f15bef8d10f0f5f\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/gpu/drm/bridge/adv7511/adv7511_drv.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.234\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.75\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.19.17\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.19.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/gpu/drm/bridge/adv7511/adv7511_drv.c\"], \"defaultStatus\": \"affected\"}], \"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\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.234\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.75\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.19.17\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.3\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1\", \"versionStartIncluding\": \"4.15\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T19:18:59.583Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-50412\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T19:18:59.583Z\", \"dateReserved\": \"2025-09-17T14:53:07.002Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-18T16:03:56.159Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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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