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CVE-2022-50440 (GCVE-0-2022-50440)

Vulnerability from cvelistv5 – Published: 2025-10-01 11:42 – Updated: 2026-08-05 08:58
VLAI
Title
drm/vmwgfx: Validate the box size for the snooped cursor
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate the box size for the snooped cursor Invalid userspace dma surface copies could potentially overflow the memcpy from the surface to the snooped image leading to crashes. To fix it the dimensions of the copybox have to be validated against the expected size of the snooped cursor.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < ee8d31836cbe7c26e207bfa0a4a726f0a25cfcf6 (git)
Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < 50d177f90b63ea4138560e500d92be5e4c928186 (git)
Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < 6b4e70a428b5a11f56db94047b68e144529fe512 (git)
Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < 94b283341f9f3f0ed56a360533766377a01540e0 (git)
Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < 439cbbc1519547f9a7b483f0de33b556ebfec901 (git)
Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < 6948e570f54f2044dd4da444b10471373a047eeb (git)
Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < 4d54d11b49860686331c58a00f733b16a93edfc4 (git)
Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < 622d527decaac0eb65512acada935a0fdc1d0202 (git)
Affected: 2ac863719e518ae1a8f328849e64ea26a222f079 , < 4cf949c7fafe21e085a4ee386bb2dade9067316e (git)
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Linux Linux Affected: 3.2
Unaffected: 0 , < 3.2 (semver)
Unaffected: 4.9.337 , ≤ 4.9.* (semver)
Unaffected: 4.14.303 , ≤ 4.14.* (semver)
Unaffected: 4.19.270 , ≤ 4.19.* (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.87 , ≤ 5.15.* (semver)
Unaffected: 6.0.18 , ≤ 6.0.* (semver)
Unaffected: 6.1.4 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50440\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-01T12:15:36.133\",\"lastModified\":\"2026-08-04T10:18:16.930\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/vmwgfx: Validate the box size for the snooped cursor\\n\\nInvalid userspace dma surface copies could potentially overflow\\nthe memcpy from the surface to the snooped image leading to crashes.\\nTo fix it the dimensions of the copybox have to be validated\\nagainst the expected size of the snooped cursor.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/gpu/drm/vmwgfx/vmwgfx_kms.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2ac863719e518ae1a8f328849e64ea26a222f079\",\"lessThan\":\"ee8d31836cbe7c26e207bfa0a4a726f0a25cfcf6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2ac863719e518ae1a8f328849e64ea26a222f079\",\"lessThan\":\"50d177f90b63ea4138560e500d92be5e4c928186\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2ac863719e518ae1a8f328849e64ea26a222f079\",\"lessThan\":\"6b4e70a428b5a11f56db94047b68e144529fe512\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2ac863719e518ae1a8f328849e64ea26a222f079\",\"lessThan\":\"94b283341f9f3f0ed56a360533766377a01540e0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2ac863719e518ae1a8f328849e64ea26a222f079\",\"lessThan\":\"439cbbc1519547f9a7b483f0de33b556ebfec901\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2ac863719e518ae1a8f328849e64ea26a222f079\",\"lessThan\":\"6948e570f54f2044dd4da444b10471373a047eeb\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2ac863719e518ae1a8f328849e64ea26a222f079\",\"lessThan\":\"4d54d11b49860686331c58a00f733b16a93edfc4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2ac863719e518ae1a8f328849e64ea26a222f079\",\"lessThan\":\"622d527decaac0eb65512acada935a0fdc1d0202\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2ac863719e518ae1a8f328849e64ea26a222f079\",\"lessThan\":\"4cf949c7fafe21e085a4ee386bb2dade9067316e\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/gpu/drm/vmwgfx/vmwgfx_kms.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.2\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.2\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.9.337\",\"lessThanOrEqual\":\"4.9.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.14.303\",\"lessThanOrEqual\":\"4.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.270\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.229\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.163\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.87\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.0.18\",\"lessThanOrEqual\":\"6.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.4\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.2\",\"versionEndExcluding\":\"4.9.337\",\"matchCriteriaId\":\"2D92C48B-2EE3-4BDF-980E-3250EF5B579F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.303\",\"matchCriteriaId\":\"1E7450AD-4739-46F0-B81B-C02E7B35A97B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.270\",\"matchCriteriaId\":\"AE8904A3-99BE-4E49-9682-1F90A6373F4F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.229\",\"matchCriteriaId\":\"A0C0D95E-414A-445E-941B-3EF6A4D3A093\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.163\",\"matchCriteriaId\":\"D05D31FC-BD74-4F9E-B1D8-9CED62BE6F65\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.87\",\"matchCriteriaId\":\"7B9E5B1C-CD46-4790-9500-615863850401\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.0.18\",\"matchCriteriaId\":\"08D38C5F-9644-4549-BBA6-F0860F024D14\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.1\",\"versionEndExcluding\":\"6.1.4\",\"matchCriteriaId\":\"BC4189D9-5478-4E88-A78D-9C1DE29B217C\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/439cbbc1519547f9a7b483f0de33b556ebfec901\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4cf949c7fafe21e085a4ee386bb2dade9067316e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4d54d11b49860686331c58a00f733b16a93edfc4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/50d177f90b63ea4138560e500d92be5e4c928186\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/622d527decaac0eb65512acada935a0fdc1d0202\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6948e570f54f2044dd4da444b10471373a047eeb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6b4e70a428b5a11f56db94047b68e144529fe512\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/94b283341f9f3f0ed56a360533766377a01540e0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ee8d31836cbe7c26e207bfa0a4a726f0a25cfcf6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T19:38:06+00:00",
      "cve": "CVE-2022-50440",
      "id": "CVE-2022-50440",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "120",
      "product_status:known_affected": "166",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Denial of Service in vmwgfx due to invalid DMA surface copies",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50440.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T01:23:42Z",
      "cve": "CVE-2022-50440",
      "id": "CVE-2022-50440",
      "initial_release_date": "2025-10-03T00:03:20Z",
      "product_status:known_affected": "6",
      "product_status:known_not_affected": "284",
      "product_status:recommended": "321",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-50440",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50440.json",
      "version": "37"
    }
  }
}



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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.