124 lines
6.0 KiB
JSON
124 lines
6.0 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-2026-98136",
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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": "2026-09-25T10:25:14.319Z",
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"datePublished": "2026-09-25T10:36:14.106Z",
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"dateUpdated": "2026-10-19T09:14:30.051Z"
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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": "2026-10-19T09:14:30.051Z"
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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\nntfs: bound $AttrDef table walk to the loaded table size\n\nntfs_attr_find_in_attrdef() walks the in-memory $AttrDef table, but the\nloop condition bounds only the start of each entry, not the whole entry:\n\n\tfor (ad = vol->attrdef; (u8 *)ad - (u8 *)vol->attrdef <\n\t\t\tvol->attrdef_size && ad->type; ++ad)\n\nstruct attr_def is 160 bytes; the guard reads ad->type at offset 128 and\nthe loop body reads further fields. vol->attrdef is kvzalloc(i_size),\nwhere i_size is the on-disk $AttrDef data size, checked in\nload_and_init_attrdef() only as 0 < i_size <= 0x7fffffff. A volume whose\n$AttrDef data size is smaller than one entry (e.g. 120 bytes) makes the\nread of ad->type run past the allocation. Creating a file reaches this\nthrough ntfs_attr_size_bounds_check() and reads out of bounds:\n\n BUG: KASAN: slab-out-of-bounds in ntfs_attr_find_in_attrdef+0x66/0xa0\n Read of size 4 at addr ffff888005833280 by task init/1\n ntfs_attr_find_in_attrdef\n ntfs_attr_size_bounds_check\n ntfs_attr_can_be_non_resident\n ntfs_attr_add\n\nRequire the whole entry to lie within attrdef_size in the loop guard, and\nreject at mount a $AttrDef too small to hold one attr_def entry."
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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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"fs/ntfs/attrib.c",
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"fs/ntfs/super.c"
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],
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"versions": [
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{
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"version": "1e9ea7e04472d4e5e12e58c881eaacfb3e49b669",
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"lessThan": "3e2ae47b8ebc632c27e7843a4632d9a7c060885e",
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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": "1e9ea7e04472d4e5e12e58c881eaacfb3e49b669",
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"lessThan": "c8504fc1245f5322af5fa5c325ab05f9cf792b87",
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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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"fs/ntfs/attrib.c",
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"fs/ntfs/super.c"
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],
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"versions": [
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{
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"version": "7.1",
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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": "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": "7.2.7",
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"lessThanOrEqual": "7.2.*",
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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": "7.3",
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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": "7.1",
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"versionEndExcluding": "7.2.7"
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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": "7.1",
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"versionEndExcluding": "7.3"
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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/3e2ae47b8ebc632c27e7843a4632d9a7c060885e"
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},
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{
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"url": "https://git.kernel.org/stable/c/c8504fc1245f5322af5fa5c325ab05f9cf792b87"
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}
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],
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"title": "ntfs: bound $AttrDef table walk to the loaded table size",
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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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} |