227 lines
11 KiB
JSON
227 lines
11 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-2026-98703",
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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": "2026-09-25T10:25:14.365Z",
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"datePublished": "2026-10-18T15:46:33.395Z",
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"dateUpdated": "2026-10-30T12:38:53.843Z"
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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": "2026-10-30T12:38:53.843Z"
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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\nwifi: mac80211: minstrel_ht: validate fixed rate index\n\nThe fixed_rate_idx debugfs file is a plain u32 attribute, so any value\ncan be written to it. minstrel_ht_update_stats() then copies the value\ninto mi->max_tp_rate[] and mi->max_prob_rate, and\nminstrel_ht_set_rate() uses MI_RATE_GROUP()/MI_RATE_IDX() to index\nminstrel_mcs_groups[] (42 entries) and mi->groups[].rates[] (10 entries)\nwith it.\n\nWriting e.g. 65535 selects group 4095 and rate index 15, far outside\nboth arrays. The out-of-bounds entries are dereferenced and updated as\nstruct minstrel_rate_stats (retry counts, etc.), so the invalid index\ncorrupts adjacent kernel memory. With CONFIG_UBSAN_BOUNDS the access is\nreported as an array-index-out-of-bounds in minstrel_ht_set_rate().\n\nOnly a valid group/rate pair, or U32_MAX to disable fixed rate\nprocessing, can be used safely, so reject any other value when the\ndebugfs file is written.\n\nThe file is only reachable through a root-only debugfs mount, so this is\nnot a privilege boundary. The out-of-bounds access is still a bug that\nmust not be reachable through a writable debugfs attribute."
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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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"net/mac80211/rc80211_minstrel_ht.c"
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],
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"versions": [
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{
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"version": "24f7580e852b5472b51eea322bb78454df0054b8",
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"lessThan": "63097bf1b7f17f14bd9ffcae6590c63272da8bb0",
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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": "24f7580e852b5472b51eea322bb78454df0054b8",
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"lessThan": "9b685cfb5cc8ed57991b1a956b06c6658d7cf455",
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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": "24f7580e852b5472b51eea322bb78454df0054b8",
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"lessThan": "eebc70f132041b35da9ec74d5d395083125289b2",
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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": "24f7580e852b5472b51eea322bb78454df0054b8",
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"lessThan": "f8ab6ae1fa360b0191252677f41e781dcb0ffe6e",
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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": "24f7580e852b5472b51eea322bb78454df0054b8",
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"lessThan": "42aa9feb27b600809414a3c6b0c650bafba542a9",
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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": "24f7580e852b5472b51eea322bb78454df0054b8",
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"lessThan": "43082d604a9937b94ceb2e484403956d0f363324",
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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": "24f7580e852b5472b51eea322bb78454df0054b8",
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"lessThan": "15fb9e3cea55fbc378261ce35a32b0f8828f0000",
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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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"net/mac80211/rc80211_minstrel_ht.c"
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],
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"versions": [
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{
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"version": "3.1",
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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": "3.1",
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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": "5.15.224",
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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": "6.1.191",
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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": "6.12.113",
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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": "6.18.56",
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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": "7.2.10",
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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": "3.1",
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"versionEndExcluding": "5.15.224"
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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": "3.1",
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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": "3.1",
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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": "3.1",
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"versionEndExcluding": "6.12.113"
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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": "3.1",
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"versionEndExcluding": "6.18.56"
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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": "3.1",
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"versionEndExcluding": "7.2.10"
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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": "3.1",
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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/63097bf1b7f17f14bd9ffcae6590c63272da8bb0"
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},
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{
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"url": "https://git.kernel.org/stable/c/9b685cfb5cc8ed57991b1a956b06c6658d7cf455"
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},
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{
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"url": "https://git.kernel.org/stable/c/eebc70f132041b35da9ec74d5d395083125289b2"
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},
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{
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"url": "https://git.kernel.org/stable/c/f8ab6ae1fa360b0191252677f41e781dcb0ffe6e"
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},
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{
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"url": "https://git.kernel.org/stable/c/42aa9feb27b600809414a3c6b0c650bafba542a9"
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},
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{
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"url": "https://git.kernel.org/stable/c/43082d604a9937b94ceb2e484403956d0f363324"
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},
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{
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"url": "https://git.kernel.org/stable/c/15fb9e3cea55fbc378261ce35a32b0f8828f0000"
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}
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],
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"title": "wifi: mac80211: minstrel_ht: validate fixed rate index",
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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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} |