{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89724", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.759Z", "datePublished": "2026-09-11T19:46:35.914Z", "dateUpdated": "2026-09-11T19:46:35.914Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-11T19:46:35.914Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: vicodec: fix out-of-bounds write in FWHT encoder\n\nvidioc_s_fmt_vid_out() sizes the encoder CAPTURE buffer from the\ncompressed descriptor pixfmt_fwht, whose sizeimage_mult is 3:\ncoded_w * coded_h * 3 + sizeof(struct fwht_cframe_hdr). fwht_encode_frame()\nencodes one plane per component, and an incompressible plane takes the\nFWHT_FRAME_UNENCODED path in encode_plane(), copying the plane verbatim.\n\nFor a 4-component pixel format all four planes are full resolution\n(width_div == height_div == 1), so a frame that forces every plane\nthrough the unencoded fallback writes\nsizeof(struct fwht_cframe_hdr) + 4 * coded_w * coded_h bytes, overrunning\nthe plane by coded_w * coded_h, which can result in corruption\nof adjacent kernel heap memory.\n\nBump pixfmt_fwht.sizeimage_mult from 3 to 4, matching the largest\ncomponents_num among the supported raw formats, so the capture buffer is\nalways large enough for the unencoded fallback."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/media/test-drivers/vicodec/vicodec-core.c"], "versions": [{"version": "16ecf6dff97ce0194a7126e26159492668d47a7e", "lessThan": "84cfebf7f4229d748cca8eb9c4e1f1c4099d3ab7", "status": "affected", "versionType": "git"}, {"version": "16ecf6dff97ce0194a7126e26159492668d47a7e", "lessThan": "8c14472431e27f13661d0db9d837156eaced0ecb", "status": "affected", "versionType": "git"}, {"version": "16ecf6dff97ce0194a7126e26159492668d47a7e", "lessThan": "b95315ffc66b39856396c1043618bb4e4d5785ba", "status": "affected", "versionType": "git"}, {"version": "16ecf6dff97ce0194a7126e26159492668d47a7e", "lessThan": "cf4500ebf6fb57bf4ab83c3dd349a40257dbe2a9", "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/test-drivers/vicodec/vicodec-core.c"], "versions": [{"version": "5.0", "status": "affected"}, {"version": "0", "lessThan": "5.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.109", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3-rc1", "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": "5.0", "versionEndExcluding": "6.12.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "7.3-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/84cfebf7f4229d748cca8eb9c4e1f1c4099d3ab7"}, {"url": "https://git.kernel.org/stable/c/8c14472431e27f13661d0db9d837156eaced0ecb"}, {"url": "https://git.kernel.org/stable/c/b95315ffc66b39856396c1043618bb4e4d5785ba"}, {"url": "https://git.kernel.org/stable/c/cf4500ebf6fb57bf4ab83c3dd349a40257dbe2a9"}], "title": "media: vicodec: fix out-of-bounds write in FWHT encoder", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/media/test-drivers/vicodec/vicodec-core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "84cfebf7f4229d748cca8eb9c4e1f1c4099d3ab7", "status": "affected", "version": "16ecf6dff97ce0194a7126e26159492668d47a7e", "versionType": "git"}, {"lessThan": "8c14472431e27f13661d0db9d837156eaced0ecb", "status": "affected", "version": "16ecf6dff97ce0194a7126e26159492668d47a7e", "versionType": "git"}, {"lessThan": "b95315ffc66b39856396c1043618bb4e4d5785ba", "status": "affected", "version": "16ecf6dff97ce0194a7126e26159492668d47a7e", "versionType": "git"}, {"lessThan": "cf4500ebf6fb57bf4ab83c3dd349a40257dbe2a9", "status": "affected", "version": "16ecf6dff97ce0194a7126e26159492668d47a7e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/media/test-drivers/vicodec/vicodec-core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.0"}, {"lessThan": "5.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.109", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.50", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: vicodec: fix out-of-bounds write in FWHT encoder\n\nvidioc_s_fmt_vid_out() sizes the encoder CAPTURE buffer from the\ncompressed descriptor pixfmt_fwht, whose sizeimage_mult is 3:\ncoded_w * coded_h * 3 + sizeof(struct fwht_cframe_hdr). fwht_encode_frame()\nencodes one plane per component, and an incompressible plane takes the\nFWHT_FRAME_UNENCODED path in encode_plane(), copying the plane verbatim.\n\nFor a 4-component pixel format all four planes are full resolution\n(width_div == height_div == 1), so a frame that forces every plane\nthrough the unencoded fallback writes\nsizeof(struct fwht_cframe_hdr) + 4 * coded_w * coded_h bytes, overrunning\nthe plane by coded_w * coded_h, which can result in corruption\nof adjacent kernel heap memory.\n\nBump pixfmt_fwht.sizeimage_mult from 3 to 4, matching the largest\ncomponents_num among the supported raw formats, so the capture buffer is\nalways large enough for the unencoded fallback."}], "id": "CVE-2026-89724", "lastModified": "2026-09-11T20:20:02.050", "metrics": {}, "published": "2026-09-11T20:20:02.050", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/84cfebf7f4229d748cca8eb9c4e1f1c4099d3ab7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8c14472431e27f13661d0db9d837156eaced0ecb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b95315ffc66b39856396c1043618bb4e4d5785ba"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cf4500ebf6fb57bf4ab83c3dd349a40257dbe2a9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: media: vicodec: Memory corruption due to out-of-bounds write", "id": "2532428", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532428"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["A flaw was found in the Linux kernel's `media: vicodec` component. An out-of-bounds write vulnerability exists in the FWHT encoder due to incorrect buffer sizing during video output format handling. This issue allows an attacker to cause corruption of adjacent kernel heap memory, which could lead to system instability or a denial of service."], "name": "CVE-2026-89724", "public_date": "2026-09-11T19:46:35Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89724\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89724\nhttps://git.kernel.org/stable/c/84cfebf7f4229d748cca8eb9c4e1f1c4099d3ab7\nhttps://git.kernel.org/stable/c/8c14472431e27f13661d0db9d837156eaced0ecb\nhttps://git.kernel.org/stable/c/b95315ffc66b39856396c1043618bb4e4d5785ba\nhttps://git.kernel.org/stable/c/cf4500ebf6fb57bf4ab83c3dd349a40257dbe2a9"], "threat_severity": "Moderate"}

{"created": "2026-09-12T09:30:13.015953+00:00", "updated": "2026-09-12T09:30:13.015959+00:00", "vendors": [], "weaknesses": ["CWE-119", "CWE-122"]}