248 lines
12 KiB
JSON
248 lines
12 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-2026-98636",
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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": "2026-09-25T10:25:14.361Z",
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"datePublished": "2026-10-18T15:20:07.184Z",
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"dateUpdated": "2026-10-19T09:23:06.005Z"
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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": "2026-10-19T09:23:06.005Z"
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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\nsquashfs: Add dictionary size range check to prevent shift-out-of-bounds\n\nWhen an abnormal SquashFS image (COMP_OPTS flag is 1 but dictionary size\nis 0) is mounted, and performs shift operations using dictionarysize, the\nshift exponent is -1, causing a shift-out-of-bounds.\n\nDetail as below:\nsquashfs_comp_opts(msblk, buffer, length)\n squashfs_xz_comp_opts()\n if (comp_opts)\n n = ffs(opts->dict_size) - 1;<----opts->dict_size=0, n=-1\n if (opts->dict_size != (1 << n) && opts->dict_size !=\n\t \t(1 << n) + (1 << (n + 1))) <----shift-out-of-bounds\n\nFix it by adding a dictionary size range check before the shift operation."
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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/squashfs/xz_wrapper.c"
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],
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"versions": [
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{
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"version": "ff750311d30acc9564ef577050794953eee59f01",
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"lessThan": "b02948a23455f8190a53887b2d2c13ae1d360cea",
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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": "ff750311d30acc9564ef577050794953eee59f01",
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"lessThan": "9d9c5c218ea356a1d88765214ad2919605280ab1",
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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": "ff750311d30acc9564ef577050794953eee59f01",
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"lessThan": "7a1c293e7aa17f1afaee0684e0e931fe23a5a6b1",
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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": "ff750311d30acc9564ef577050794953eee59f01",
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"lessThan": "c68e0068a236f9a7dfc19720bdf11e5d80a85089",
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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": "ff750311d30acc9564ef577050794953eee59f01",
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"lessThan": "88c673a0bd233df44ca0020da82f4fd3876de27a",
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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": "ff750311d30acc9564ef577050794953eee59f01",
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"lessThan": "0cb85377daaefb4ce5ce72975f2deb27ee0e0cad",
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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": "ff750311d30acc9564ef577050794953eee59f01",
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"lessThan": "e1ca4e3a380ef3e8f46ce006f1146392e3f32c98",
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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": "ff750311d30acc9564ef577050794953eee59f01",
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"lessThan": "1f7745fb3580152ca902ef181b605f33cabfb1d0",
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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/squashfs/xz_wrapper.c"
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],
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"versions": [
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{
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"version": "2.6.39",
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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": "2.6.39",
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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": "5.10.271",
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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": "5.15.222",
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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": "6.1.189",
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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": "6.6.158",
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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": "6.12.112",
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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": "6.18.55",
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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": "7.2.9",
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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": "2.6.39",
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"versionEndExcluding": "5.10.271"
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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": "2.6.39",
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"versionEndExcluding": "5.15.222"
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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": "2.6.39",
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"versionEndExcluding": "6.1.189"
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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": "2.6.39",
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"versionEndExcluding": "6.6.158"
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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": "2.6.39",
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"versionEndExcluding": "6.12.112"
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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": "2.6.39",
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"versionEndExcluding": "6.18.55"
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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": "2.6.39",
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"versionEndExcluding": "7.2.9"
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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": "2.6.39",
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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/b02948a23455f8190a53887b2d2c13ae1d360cea"
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},
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{
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"url": "https://git.kernel.org/stable/c/9d9c5c218ea356a1d88765214ad2919605280ab1"
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},
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{
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"url": "https://git.kernel.org/stable/c/7a1c293e7aa17f1afaee0684e0e931fe23a5a6b1"
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},
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{
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"url": "https://git.kernel.org/stable/c/c68e0068a236f9a7dfc19720bdf11e5d80a85089"
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},
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{
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"url": "https://git.kernel.org/stable/c/88c673a0bd233df44ca0020da82f4fd3876de27a"
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},
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{
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"url": "https://git.kernel.org/stable/c/0cb85377daaefb4ce5ce72975f2deb27ee0e0cad"
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},
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{
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"url": "https://git.kernel.org/stable/c/e1ca4e3a380ef3e8f46ce006f1146392e3f32c98"
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},
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{
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"url": "https://git.kernel.org/stable/c/1f7745fb3580152ca902ef181b605f33cabfb1d0"
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}
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],
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"title": "squashfs: Add dictionary size range check to prevent shift-out-of-bounds",
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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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} |