143 lines
6.4 KiB
JSON
143 lines
6.4 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-2026-46281",
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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": "2026-05-13T15:03:33.110Z",
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"datePublished": "2026-06-08T15:41:24.168Z",
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"dateUpdated": "2026-06-14T18:06:05.046Z"
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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": "2026-06-14T18:06:05.046Z"
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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\nvmalloc: fix buffer overflow in vrealloc_node_align()\n\nCommit 4c5d3365882d (\"mm/vmalloc: allow to set node and align in\nvrealloc\") added the ability to force a new allocation if the current\npointer is on the wrong NUMA node, or if an alignment constraint is not\nmet, even if the user is shrinking the allocation.\n\nOn this path (need_realloc), the code allocates a new object of 'size'\nbytes and then memcpy()s 'old_size' bytes into it. If the request is to\nshrink the object (size < old_size), this results in an out-of-bounds\nwrite on the new buffer.\n\nFix this by bounding the copy length by the new allocation size."
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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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"mm/vmalloc.c"
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],
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"versions": [
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{
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"version": "4c5d3365882dbbc0784688784904f440d7a4c0f1",
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"lessThan": "e9b057a44deff4c59c13f44672a5cc74dcd57522",
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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": "4c5d3365882dbbc0784688784904f440d7a4c0f1",
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"lessThan": "b281adf71f786c325eb6d6d1582d4d05313438a8",
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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": "4c5d3365882dbbc0784688784904f440d7a4c0f1",
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"lessThan": "82d1f01292d3f09bf063f829f8ab8de12b4280a1",
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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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"mm/vmalloc.c"
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],
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"versions": [
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{
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"version": "6.18",
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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": "6.18",
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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": "6.18.27",
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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": "7.0.4",
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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": "6.18",
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"versionEndExcluding": "6.18.27"
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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": "6.18",
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"versionEndExcluding": "7.0.4"
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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": "6.18",
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"versionEndExcluding": "7.1"
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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/e9b057a44deff4c59c13f44672a5cc74dcd57522"
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},
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{
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"url": "https://git.kernel.org/stable/c/b281adf71f786c325eb6d6d1582d4d05313438a8"
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},
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{
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"url": "https://git.kernel.org/stable/c/82d1f01292d3f09bf063f829f8ab8de12b4280a1"
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}
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],
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"title": "vmalloc: fix buffer overflow in vrealloc_node_align()",
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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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} |