143 lines
6.6 KiB
JSON
143 lines
6.6 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-64236",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-07-19T15:36:31.771Z",
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"datePublished": "2026-07-24T15:27:41.371Z",
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"dateUpdated": "2026-07-24T15:27:41.371Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-07-24T15:27:41.371Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: davinci: fix division by zero on missing clock-frequency\n\nWhen the 'clock-frequency' property is missing from the device tree,\nthe driver falls back to DAVINCI_I2C_DEFAULT_BUS_FREQ. However, this\nmacro was defined in kHz (100), whereas the device tree property is\nexpected in Hz.\n\nThe probe function divided the fallback value by 1000, causing\ninteger truncation that resulted in dev->bus_freq = 0. This triggered\na deterministic division-by-zero kernel panic when calculating clock\ndividers later in the probe sequence.\n\nFix this by redefining DAVINCI_I2C_DEFAULT_BUS_FREQ in Hz (100000)\nto match the expected device tree property unit, allowing the existing\ndivision logic to work correctly for both cases."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/i2c/busses/i2c-davinci.c"
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],
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"versions": [
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{
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"version": "b04ce63859793e3439b394976b8d29e785d4d69a",
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"lessThan": "3f43865cb64dd7cb50efae1281a95585617b12a1",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "b04ce63859793e3439b394976b8d29e785d4d69a",
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"lessThan": "9b694bc0e1831cbc5c3bbfd1b156ec719128f7d9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "b04ce63859793e3439b394976b8d29e785d4d69a",
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"lessThan": "030675aa54cf757769b3db65642433d626b3ed7c",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/i2c/busses/i2c-davinci.c"
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],
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"versions": [
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{
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"version": "6.14",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.14",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.35",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.0.12",
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"lessThanOrEqual": "7.0.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.14",
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"versionEndExcluding": "6.18.35"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.14",
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.14",
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/3f43865cb64dd7cb50efae1281a95585617b12a1"
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},
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{
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"url": "https://git.kernel.org/stable/c/9b694bc0e1831cbc5c3bbfd1b156ec719128f7d9"
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},
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{
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"url": "https://git.kernel.org/stable/c/030675aa54cf757769b3db65642433d626b3ed7c"
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}
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],
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"title": "i2c: davinci: fix division by zero on missing clock-frequency",
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} |