269 lines
14 KiB
JSON
269 lines
14 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-2026-31576",
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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": "2026-03-09T15:48:24.119Z",
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"datePublished": "2026-04-24T14:42:08.188Z",
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"dateUpdated": "2026-06-14T17:42:00.110Z"
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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": "2026-06-14T17:42:00.110Z"
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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\nmedia: hackrf: fix to not free memory after the device is registered in hackrf_probe()\n\nIn hackrf driver, the following race condition occurs:\n```\n\t\tCPU0\t\t\t\t\t\tCPU1\nhackrf_probe()\n kzalloc(); // alloc hackrf_dev\n ....\n v4l2_device_register();\n ....\n\t\t\t\t\t\tfd = sys_open(\"/path/to/dev\"); // open hackrf fd\n\t\t\t\t\t\t....\n v4l2_device_unregister();\n ....\n kfree(); // free hackrf_dev\n ....\n\t\t\t\t\t\tsys_ioctl(fd, ...);\n\t\t\t\t\t\t v4l2_ioctl();\n\t\t\t\t\t\t video_is_registered() // UAF!!\n\t\t\t\t\t\t....\n\t\t\t\t\t\tsys_close(fd);\n\t\t\t\t\t\t v4l2_release() // UAF!!\n\t\t\t\t\t\t hackrf_video_release()\n\t\t\t\t\t\t kfree(); // DFB!!\n```\n\nWhen a V4L2 or video device is unregistered, the device node is removed so\nnew open() calls are blocked.\n\nHowever, file descriptors that are already open-and any in-flight I/O-do\nnot terminate immediately; they remain valid until the last reference is\ndropped and the driver's release() is invoked.\n\nTherefore, freeing device memory on the error path after hackrf_probe()\nhas registered dev it will lead to a race to use-after-free vuln, since\nthose already-open handles haven't been released yet.\n\nAnd since release() free memory too, race to use-after-free and\ndouble-free vuln occur.\n\nTo prevent this, if device is registered from probe(), it should be\nmodified to free memory only through release() rather than calling\nkfree() directly."
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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/media/usb/hackrf/hackrf.c"
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],
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"versions": [
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{
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"version": "8bc4a9ed85046c214458c9e82aea75d2f46cfffd",
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"lessThan": "87b9685cca91ed715c39ba544715832d26a7f4b4",
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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": "8bc4a9ed85046c214458c9e82aea75d2f46cfffd",
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"lessThan": "131ec9046e1c8af101aebdaec4e8095e05f3312b",
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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": "8bc4a9ed85046c214458c9e82aea75d2f46cfffd",
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"lessThan": "67fd62e3efdc9dce01f76d95a745212f4feb38e6",
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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": "8bc4a9ed85046c214458c9e82aea75d2f46cfffd",
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"lessThan": "45cbaf5c7cdc5386d86377f0daf94a17a007fed0",
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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": "8bc4a9ed85046c214458c9e82aea75d2f46cfffd",
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"lessThan": "98a0a81ce78020c2522e0046f49d200de9778cb9",
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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": "8bc4a9ed85046c214458c9e82aea75d2f46cfffd",
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"lessThan": "07e9e674b6146b1f6fc41b1f54b8968bf2802824",
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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": "8bc4a9ed85046c214458c9e82aea75d2f46cfffd",
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"lessThan": "2145c71a8044362e82e9923f001ba2aeb771b848",
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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": "8bc4a9ed85046c214458c9e82aea75d2f46cfffd",
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"lessThan": "fcd1d70792a35c8a97414fe429f48311e41269c2",
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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": "8bc4a9ed85046c214458c9e82aea75d2f46cfffd",
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"lessThan": "3b7da2b4d0fe014eff181ed37e3bf832eb8ed258",
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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/media/usb/hackrf/hackrf.c"
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],
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"versions": [
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{
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"version": "4.4",
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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": "4.4",
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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": "5.10.258",
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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": "5.15.209",
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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": "6.1.175",
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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": "6.6.136",
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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": "6.12.83",
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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": "6.18.24",
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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": "6.19.14",
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"lessThanOrEqual": "6.19.*",
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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": "7.0.1",
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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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{
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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": "4.4",
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"versionEndExcluding": "5.10.258"
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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": "4.4",
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"versionEndExcluding": "5.15.209"
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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": "4.4",
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"versionEndExcluding": "6.1.175"
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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": "4.4",
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"versionEndExcluding": "6.6.136"
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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": "4.4",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.4",
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"versionEndExcluding": "6.19.14"
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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": "4.4",
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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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/87b9685cca91ed715c39ba544715832d26a7f4b4"
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},
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{
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"url": "https://git.kernel.org/stable/c/131ec9046e1c8af101aebdaec4e8095e05f3312b"
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},
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{
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"url": "https://git.kernel.org/stable/c/67fd62e3efdc9dce01f76d95a745212f4feb38e6"
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},
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{
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"url": "https://git.kernel.org/stable/c/45cbaf5c7cdc5386d86377f0daf94a17a007fed0"
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},
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{
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"url": "https://git.kernel.org/stable/c/98a0a81ce78020c2522e0046f49d200de9778cb9"
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},
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{
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"url": "https://git.kernel.org/stable/c/07e9e674b6146b1f6fc41b1f54b8968bf2802824"
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},
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{
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"url": "https://git.kernel.org/stable/c/2145c71a8044362e82e9923f001ba2aeb771b848"
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},
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{
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"url": "https://git.kernel.org/stable/c/fcd1d70792a35c8a97414fe429f48311e41269c2"
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},
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{
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"url": "https://git.kernel.org/stable/c/3b7da2b4d0fe014eff181ed37e3bf832eb8ed258"
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}
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],
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"title": "media: hackrf: fix to not free memory after the device is registered in hackrf_probe()",
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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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} |