248 lines
13 KiB
JSON
248 lines
13 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-2025-68758",
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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": "2025-12-24T10:30:51.033Z",
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"datePublished": "2026-01-05T09:32:31.399Z",
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"dateUpdated": "2026-05-11T21:52:46.981Z"
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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": "2026-05-11T21:52:46.981Z"
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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\nbacklight: led-bl: Add devlink to supplier LEDs\n\nLED Backlight is a consumer of one or multiple LED class devices, but\ndevlink is currently unable to create correct supplier-producer links when\nthe supplier is a class device. It creates instead a link where the\nsupplier is the parent of the expected device.\n\nOne consequence is that removal order is not correctly enforced.\n\nIssues happen for example with the following sections in a device tree\noverlay:\n\n // An LED driver chip\n pca9632@62 {\n compatible = \"nxp,pca9632\";\n reg = <0x62>;\n\n\t// ...\n\n addon_led_pwm: led-pwm@3 {\n reg = <3>;\n label = \"addon:led:pwm\";\n };\n };\n\n backlight-addon {\n compatible = \"led-backlight\";\n leds = <&addon_led_pwm>;\n brightness-levels = <255>;\n default-brightness-level = <255>;\n };\n\nIn this example, the devlink should be created between the backlight-addon\n(consumer) and the pca9632@62 (supplier). Instead it is created between the\nbacklight-addon (consumer) and the parent of the pca9632@62, which is\ntypically the I2C bus adapter.\n\nOn removal of the above overlay, the LED driver can be removed before the\nbacklight device, resulting in:\n\n Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010\n ...\n Call trace:\n led_put+0xe0/0x140\n devm_led_release+0x6c/0x98\n\nAnother way to reproduce the bug without any device tree overlays is\nunbinding the LED class device (pca9632@62) before unbinding the consumer\n(backlight-addon):\n\n echo 11-0062 >/sys/bus/i2c/drivers/leds-pca963x/unbind\n echo ...backlight-dock >/sys/bus/platform/drivers/led-backlight/unbind\n\nFix by adding a devlink between the consuming led-backlight device and the\nsupplying LED device, as other drivers and subsystems do as well."
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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/video/backlight/led_bl.c"
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],
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"versions": [
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{
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"version": "ae232e45acf9621f2c96b41ca3af006ac7552c33",
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"lessThan": "64739adf3eef063b8e2c72b7e919eac8c6480bf0",
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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": "ae232e45acf9621f2c96b41ca3af006ac7552c33",
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"lessThan": "cd01a24b3e52d6777b49c917d841f125fe9eebd0",
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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": "ae232e45acf9621f2c96b41ca3af006ac7552c33",
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"lessThan": "e06df738a9ad8417f1c4c7cd6992cda320e9e7ca",
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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": "ae232e45acf9621f2c96b41ca3af006ac7552c33",
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"lessThan": "30cbe4b642745a9488a0f0d78be43afe69d7555c",
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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": "ae232e45acf9621f2c96b41ca3af006ac7552c33",
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"lessThan": "0e63ea4378489e09eb5e920c8a50c10caacf563a",
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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": "ae232e45acf9621f2c96b41ca3af006ac7552c33",
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"lessThan": "60a24070392ec726ccfe6ad1ca7b0381c8d8f7c9",
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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": "ae232e45acf9621f2c96b41ca3af006ac7552c33",
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"lessThan": "08c9dc6b0f2c68e5e7c374ac4499e321e435d46c",
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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": "ae232e45acf9621f2c96b41ca3af006ac7552c33",
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"lessThan": "9341d6698f4cfdfc374fb6944158d111ebe16a9d",
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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/video/backlight/led_bl.c"
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],
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"versions": [
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{
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"version": "5.6",
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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": "5.6",
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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": "5.10.248",
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"lessThanOrEqual": "5.10.*",
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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": "5.15.198",
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"lessThanOrEqual": "5.15.*",
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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": "6.1.160",
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"lessThanOrEqual": "6.1.*",
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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": "6.6.120",
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"lessThanOrEqual": "6.6.*",
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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": "6.12.63",
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"lessThanOrEqual": "6.12.*",
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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": "6.17.13",
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"lessThanOrEqual": "6.17.*",
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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": "6.18.2",
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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": "6.19",
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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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{
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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": "5.6",
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"versionEndExcluding": "5.10.248"
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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": "5.6",
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"versionEndExcluding": "5.15.198"
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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": "5.6",
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"versionEndExcluding": "6.1.160"
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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": "5.6",
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"versionEndExcluding": "6.6.120"
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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": "5.6",
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"versionEndExcluding": "6.12.63"
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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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},
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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": "5.6",
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"versionEndExcluding": "6.18.2"
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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": "5.6",
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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/64739adf3eef063b8e2c72b7e919eac8c6480bf0"
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},
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{
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"url": "https://git.kernel.org/stable/c/cd01a24b3e52d6777b49c917d841f125fe9eebd0"
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},
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{
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"url": "https://git.kernel.org/stable/c/e06df738a9ad8417f1c4c7cd6992cda320e9e7ca"
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},
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{
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"url": "https://git.kernel.org/stable/c/30cbe4b642745a9488a0f0d78be43afe69d7555c"
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},
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{
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"url": "https://git.kernel.org/stable/c/0e63ea4378489e09eb5e920c8a50c10caacf563a"
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},
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{
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"url": "https://git.kernel.org/stable/c/60a24070392ec726ccfe6ad1ca7b0381c8d8f7c9"
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},
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{
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"url": "https://git.kernel.org/stable/c/08c9dc6b0f2c68e5e7c374ac4499e321e435d46c"
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},
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{
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"url": "https://git.kernel.org/stable/c/9341d6698f4cfdfc374fb6944158d111ebe16a9d"
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}
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],
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"title": "backlight: led-bl: Add devlink to supplier LEDs",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |