206 lines
9.8 KiB
JSON
206 lines
9.8 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-2026-68435",
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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": "2026-07-30T09:28:09.393Z",
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"datePublished": "2026-08-12T00:07:23.359Z",
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"dateUpdated": "2026-10-30T12:28:36.302Z"
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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": "2026-10-30T12:28:36.302Z"
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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\nLoongArch: Fix address space mismatch in kexec command line lookup\n\nWhen searching the loaded segments for the \"kexec\" command line marker,\nthe kexec_load(2) path (file_mode == 0) passes the user-space segment\nbuffer straight to strncmp() through a bogus (char __user *) cast. This\ndereferences a user pointer in kernel context, which is wrong and is\nflagged by sparse:\n\n arch/loongarch/kernel/machine_kexec.c:84:51: sparse: incorrect type in\n argument 2 (different address spaces) @@ expected char const * @@ got\n char [noderef] __user *\n\nHere copy the marker-sized prefix of each segment into a small on-stack\nbuffer with copy_from_user() before comparing, and skip segments that\nfault. The subsequent copy_from_user() that stages the full command line\ninto the safe area is left unchanged."
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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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"arch/loongarch/kernel/machine_kexec.c"
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],
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"versions": [
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{
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"version": "4a03b2ac06a5bcae29371866d9d11f5bfd4c9188",
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"lessThan": "742f2c0a64a7557495e831c3c112d92e308bd4ae",
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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": "4a03b2ac06a5bcae29371866d9d11f5bfd4c9188",
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"lessThan": "3b71f51fa3a247921408879eab2ddee82da8a980",
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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": "4a03b2ac06a5bcae29371866d9d11f5bfd4c9188",
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"lessThan": "eaa908d8d523b0ab75dab5ebd6662e70af5e5d7e",
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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": "4a03b2ac06a5bcae29371866d9d11f5bfd4c9188",
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"lessThan": "a94d6726ec8680a2b0c453fc782a543f68a1ea06",
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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": "4a03b2ac06a5bcae29371866d9d11f5bfd4c9188",
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"lessThan": "7a54e0cbaad4a5a09e7cc7a4f05d181048e98ca7",
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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": "4a03b2ac06a5bcae29371866d9d11f5bfd4c9188",
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"lessThan": "485ed44db5694d8d2e5027f63ad608e705286f30",
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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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"arch/loongarch/kernel/machine_kexec.c"
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],
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"versions": [
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{
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"version": "6.1",
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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": "6.1",
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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": "6.1.191",
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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": "6.6.160",
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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": "6.12.114",
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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": "6.18.42",
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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": "7.1.6",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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": "6.1",
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"versionEndExcluding": "6.1.191"
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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": "6.1",
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"versionEndExcluding": "6.6.160"
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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": "6.1",
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"versionEndExcluding": "6.12.114"
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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": "6.1",
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"versionEndExcluding": "6.18.42"
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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": "6.1",
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"versionEndExcluding": "7.1.6"
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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": "6.1",
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"versionEndExcluding": "7.2"
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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/742f2c0a64a7557495e831c3c112d92e308bd4ae"
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},
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{
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"url": "https://git.kernel.org/stable/c/3b71f51fa3a247921408879eab2ddee82da8a980"
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},
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{
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"url": "https://git.kernel.org/stable/c/eaa908d8d523b0ab75dab5ebd6662e70af5e5d7e"
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},
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{
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"url": "https://git.kernel.org/stable/c/a94d6726ec8680a2b0c453fc782a543f68a1ea06"
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},
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{
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"url": "https://git.kernel.org/stable/c/7a54e0cbaad4a5a09e7cc7a4f05d181048e98ca7"
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},
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{
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"url": "https://git.kernel.org/stable/c/485ed44db5694d8d2e5027f63ad608e705286f30"
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}
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],
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"title": "LoongArch: Fix address space mismatch in kexec command line lookup",
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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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} |