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vuln-cve/data/2023/53xxx/CVE-2023-53244.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2023-53244",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-09-15T14:19:21.848Z",
"datePublished": "2025-09-15T14:46:12.951Z",
"dateUpdated": "2026-05-11T19:41:01.887Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T19:41:01.887Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish\n\nWhen the driver calls tw68_risc_buffer() to prepare the buffer, the\nfunction call dma_alloc_coherent may fail, resulting in a empty buffer\nbuf->cpu. Later when we free the buffer or access the buffer, null ptr\nderef is triggered.\n\nThis bug is similar to the following one:\nhttps://git.linuxtv.org/media_stage.git/commit/?id=2b064d91440b33fba5b452f2d1b31f13ae911d71.\n\nWe believe the bug can be also dynamically triggered from user side.\nSimilarly, we fix this by checking the return value of tw68_risc_buffer()\nand the value of buf->cpu before buffer free."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/media/pci/tw68/tw68-video.c"
],
"versions": [
{
"version": "e15d1c12c5878b3a80d6573af1721e17264e0286",
"lessThan": "dcf632bca424e6ff8c8eb89c96694e7f05cd29b6",
"status": "affected",
"versionType": "git"
},
{
"version": "e15d1c12c5878b3a80d6573af1721e17264e0286",
"lessThan": "3c67f49a6643d973e83968ea35806c7b5ae68b56",
"status": "affected",
"versionType": "git"
},
{
"version": "e15d1c12c5878b3a80d6573af1721e17264e0286",
"lessThan": "3715c5e9a8f96b6ed0dcbea06da443efccac1ecc",
"status": "affected",
"versionType": "git"
},
{
"version": "e15d1c12c5878b3a80d6573af1721e17264e0286",
"lessThan": "1634b7adcc5bef645b3666fdd564e5952a9e24e0",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/media/pci/tw68/tw68-video.c"
],
"versions": [
{
"version": "3.18",
"status": "affected"
},
{
"version": "0",
"lessThan": "3.18",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.113",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.30",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.3.4",
"lessThanOrEqual": "6.3.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.4",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.18",
"versionEndExcluding": "5.15.113"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.18",
"versionEndExcluding": "6.1.30"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.18",
"versionEndExcluding": "6.3.4"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.18",
"versionEndExcluding": "6.4"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/dcf632bca424e6ff8c8eb89c96694e7f05cd29b6"
},
{
"url": "https://git.kernel.org/stable/c/3c67f49a6643d973e83968ea35806c7b5ae68b56"
},
{
"url": "https://git.kernel.org/stable/c/3715c5e9a8f96b6ed0dcbea06da443efccac1ecc"
},
{
"url": "https://git.kernel.org/stable/c/1634b7adcc5bef645b3666fdd564e5952a9e24e0"
}
],
"title": "media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
}
},
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2023-53244",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-01-14T17:58:42.683691Z"
}
}
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"type": "CWE",
"cweId": "CWE-476",
"description": "CWE-476 NULL Pointer Dereference"
}
]
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-01-14T18:02:51.176Z"
}
}
]
}
}