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CVE-2021-47503 (GCVE-0-2021-47503)

Vulnerability from cvelistv5 – Published: 2024-05-24 15:01 – Updated: 2026-05-11 13:55
VLAI
Title
scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc() Calling scsi_remove_host() before scsi_add_host() results in a crash: BUG: kernel NULL pointer dereference, address: 0000000000000108 RIP: 0010:device_del+0x63/0x440 Call Trace: device_unregister+0x17/0x60 scsi_remove_host+0xee/0x2a0 pm8001_pci_probe+0x6ef/0x1b90 [pm80xx] local_pci_probe+0x3f/0x90 We cannot call scsi_remove_host() in pm8001_alloc() because scsi_add_host() has not been called yet at that point in time. Function call tree: pm8001_pci_probe() | `- pm8001_pci_alloc() | | | `- pm8001_alloc() | | | `- scsi_remove_host() | `- scsi_add_host()
Severity
6.2 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-28 15:53 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 05c6c029a44d9f43715577e33e95eba87f44d285 , < 1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add (git)
Affected: 05c6c029a44d9f43715577e33e95eba87f44d285 , < f8dccc1bdea7e21b5ec06c957aef8831c772661c (git)
Affected: 05c6c029a44d9f43715577e33e95eba87f44d285 , < 653926205741add87a6cf452e21950eebc6ac10b (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.85 , ≤ 5.10.* (semver)
Unaffected: 5.15.8 , ≤ 5.15.* (semver)
Unaffected: 5.16 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
linux linux_kernel Affected: 05c6c029a44d , < 1e434d2687e8 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Affected: 05c6c029a44d , < f8dccc1bdea7 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Affected: f8dccc1bdea7 , < 653926205741 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Unaffected: 0 , < 5.10 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Unaffected: 5.10.85 , < 5.11 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Unaffected: 5.15.8 , ≤ 5.16 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Unaffected: 5.16
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Affected: 5.10
    cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:*
Create a notification for this product.
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47503\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-24T15:15:10.567\",\"lastModified\":\"2026-06-17T04:17:38.543\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nscsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()\\n\\nCalling scsi_remove_host() before scsi_add_host() results in a crash:\\n\\n BUG: kernel NULL pointer dereference, address: 0000000000000108\\n RIP: 0010:device_del+0x63/0x440\\n Call Trace:\\n  device_unregister+0x17/0x60\\n  scsi_remove_host+0xee/0x2a0\\n  pm8001_pci_probe+0x6ef/0x1b90 [pm80xx]\\n  local_pci_probe+0x3f/0x90\\n\\nWe cannot call scsi_remove_host() in pm8001_alloc() because scsi_add_host()\\nhas not been called yet at that point in time.\\n\\nFunction call tree:\\n\\n  pm8001_pci_probe()\\n  |\\n  `- pm8001_pci_alloc()\\n  |  |\\n  |  `- pm8001_alloc()\\n  |     |\\n  |     `- scsi_remove_host()\\n  |\\n  `- scsi_add_host()\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: pm80xx: No llamar a scsi_remove_host() en pm8001_alloc() Llamar a scsi_remove_host() antes de scsi_add_host() produce un bloqueo: ERROR: desreferencia del puntero NULL del kernel, direcci\u00f3n: 00000000000000108 RIP : 0010:device_del+0x63/0x440 Seguimiento de llamadas: device_unregister+0x17/0x60 scsi_remove_host+0xee/0x2a0 pm8001_pci_probe+0x6ef/0x1b90 [pm80xx] local_pci_probe+0x3f/0x90 No podemos llamar a scsi_remove_host() en pm8001_ alloc() porque scsi_add_host() no lo ha hecho sido llamado todav\u00eda en ese momento. \u00c1rbol de llamadas a funciones: pm8001_pci_probe() | `- pm8001_pci_alloc() | | | `- pm8001_alloc() | | | `- scsi_remove_host() | `- scsi_add_host()\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/scsi/pm8001/pm8001_init.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"05c6c029a44d9f43715577e33e95eba87f44d285\",\"lessThan\":\"1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"05c6c029a44d9f43715577e33e95eba87f44d285\",\"lessThan\":\"f8dccc1bdea7e21b5ec06c957aef8831c772661c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"05c6c029a44d9f43715577e33e95eba87f44d285\",\"lessThan\":\"653926205741add87a6cf452e21950eebc6ac10b\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/scsi/pm8001/pm8001_init.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.10\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.10\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.85\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.8\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.16\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"affectedData\":[{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"05c6c029a44d\",\"lessThan\":\"1e434d2687e8 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\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"0\",\"lessThan\":\"5.10\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"5.10.85\",\"lessThan\":\"5.11\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"5.15.8\",\"lessThanOrEqual\":\"5.16\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"5.16\",\"status\":\"unaffected\"}]},{\"vendor\":\"linux\",\"product\":\"linux_kernel\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"5.10\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.2,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.5,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-05-28T15:53:11.089005Z\",\"id\":\"CVE-2021-47503\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.10\",\"versionEndExcluding\":\"5.10.85\",\"matchCriteriaId\":\"9E864355-2799-406B-9254-AC1AA59C2904\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.8\",\"matchCriteriaId\":\"6664ACE2-F748-4AE5-B98B-58803B0B2C3E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"357AA433-37E8-4323-BFB2-3038D6E4B414\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"A73429BA-C2D9-4D0C-A75F-06A1CA8B3983\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"F621B5E3-E99D-49E7-90B9-EC3B77C95383\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"F7BFDCAA-1650-49AA-8462-407DD593F94F\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T14:33:33+00:00",
      "cve": "CVE-2021-47503",
      "id": "CVE-2021-47503",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_affected": "42",
      "product_status:known_not_affected": "156",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47503.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T02:42:12Z",
      "cve": "CVE-2021-47503",
      "id": "CVE-2021-47503",
      "initial_release_date": "2024-05-28T03:32:56Z",
      "product_status:known_affected": "269",
      "product_status:known_not_affected": "224",
      "product_status:recommended": "543",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-47503",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-47503.json",
      "version": "55"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:39:59.785Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.2, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47503\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-05-28T15:53:11.089005Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"affected\", \"version\": \"05c6c029a44d\", \"lessThan\": \"1e434d2687e8 \", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"affected\", \"version\": \"05c6c029a44d\", \"lessThan\": \"f8dccc1bdea7 \", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": 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\"5.15.8\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"5.16\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"5.16\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.10\"}], \"defaultStatus\": \"unknown\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-476\", \"description\": \"CWE-476 NULL Pointer Dereference\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-28T16:03:25.985Z\"}}], \"cna\": {\"title\": \"scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"05c6c029a44d9f43715577e33e95eba87f44d285\", \"lessThan\": \"1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"05c6c029a44d9f43715577e33e95eba87f44d285\", \"lessThan\": \"f8dccc1bdea7e21b5ec06c957aef8831c772661c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"05c6c029a44d9f43715577e33e95eba87f44d285\", \"lessThan\": \"653926205741add87a6cf452e21950eebc6ac10b\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/scsi/pm8001/pm8001_init.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.10\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.10\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.85\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.8\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/scsi/pm8001/pm8001_init.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add\"}, {\"url\": \"https://git.kernel.org/stable/c/f8dccc1bdea7e21b5ec06c957aef8831c772661c\"}, {\"url\": \"https://git.kernel.org/stable/c/653926205741add87a6cf452e21950eebc6ac10b\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nscsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()\\n\\nCalling scsi_remove_host() before scsi_add_host() results in a crash:\\n\\n BUG: kernel NULL pointer dereference, address: 0000000000000108\\n RIP: 0010:device_del+0x63/0x440\\n Call Trace:\\n  device_unregister+0x17/0x60\\n  scsi_remove_host+0xee/0x2a0\\n  pm8001_pci_probe+0x6ef/0x1b90 [pm80xx]\\n  local_pci_probe+0x3f/0x90\\n\\nWe cannot call scsi_remove_host() in pm8001_alloc() because scsi_add_host()\\nhas not been called yet at that point in time.\\n\\nFunction call tree:\\n\\n  pm8001_pci_probe()\\n  |\\n  `- pm8001_pci_alloc()\\n  |  |\\n  |  `- pm8001_alloc()\\n  |     |\\n  |     `- scsi_remove_host()\\n  |\\n  `- scsi_add_host()\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.85\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.8\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16\", \"versionStartIncluding\": \"5.10\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:12:25.934Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47503\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:12:25.934Z\", \"dateReserved\": \"2024-05-22T06:20:56.205Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-24T15:01:50.358Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Taxonomy of the tags.





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.

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.