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-2023-54232",
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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": "2025-12-30T12:06:44.502Z",
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"datePublished": "2025-12-30T12:11:23.565Z",
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"dateUpdated": "2026-05-11T19:58:00.368Z"
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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": "2026-05-11T19:58:00.368Z"
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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\nm68k: Only force 030 bus error if PC not in exception table\n\n__get_kernel_nofault() does copy data in supervisor mode when\nforcing a task backtrace log through /proc/sysrq_trigger.\nThis is expected cause a bus error exception on e.g. NULL\npointer dereferencing when logging a kernel task has no\nworkqueue associated. This bus error ought to be ignored.\n\nOur 030 bus error handler is ill equipped to deal with this:\n\nWhenever ssw indicates a kernel mode access on a data fault,\nwe don't even attempt to handle the fault and instead always\nsend a SEGV signal (or panic). As a result, the check\nfor exception handling at the fault PC (buried in\nsend_sig_fault() which gets called from do_page_fault()\neventually) is never used.\n\nIn contrast, both 040 and 060 access error handlers do not\ncare whether a fault happened on supervisor mode access,\nand will call do_page_fault() on those, ultimately honoring\nthe exception table.\n\nAdd a check in bus_error030 to call do_page_fault() in case\nwe do have an entry for the fault PC in our exception table.\n\nI had attempted a fix for this earlier in 2019 that did rely\non testing pagefault_disabled() (see link below) to achieve\nthe same thing, but this patch should be more generic.\n\nTested on 030 Atari Falcon."
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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/m68k/kernel/traps.c"
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],
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"versions": [
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{
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"version": "f2325ecebc5b7988fd49968bd3a660fd1594dc84",
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"lessThan": "1a6059f5ed57f48edfe7159404ff7d538d9d405b",
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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": "f2325ecebc5b7988fd49968bd3a660fd1594dc84",
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"lessThan": "f55cb52ec98b22125f5bda36391edb8894f7e8cf",
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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": "f2325ecebc5b7988fd49968bd3a660fd1594dc84",
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"lessThan": "2100e374251a8fc00cce1916cfc50f3cb652cbe3",
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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": "f2325ecebc5b7988fd49968bd3a660fd1594dc84",
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"lessThan": "df1da53a7e98f0b2a0eb2241c154f148f2f2c1d8",
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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": "f2325ecebc5b7988fd49968bd3a660fd1594dc84",
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"lessThan": "8bf8d5dade4c5e1d8a2386f29253ed28b5d87735",
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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": "f2325ecebc5b7988fd49968bd3a660fd1594dc84",
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"lessThan": "54fa25ffab2b700df5abd58c136d64a912c53953",
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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": "f2325ecebc5b7988fd49968bd3a660fd1594dc84",
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"lessThan": "ec15405b80fc15ffc87a23d01378ae061c1aba07",
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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": "f2325ecebc5b7988fd49968bd3a660fd1594dc84",
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"lessThan": "e36a82bebbf7da814530d5a179bef9df5934b717",
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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/m68k/kernel/traps.c"
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],
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"versions": [
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{
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"version": "2.6.18",
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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": "2.6.18",
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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": "4.14.312",
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"lessThanOrEqual": "4.14.*",
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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": "4.19.280",
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"lessThanOrEqual": "4.19.*",
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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": "5.4.240",
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"lessThanOrEqual": "5.4.*",
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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": "5.10.177",
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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": "5.15.105",
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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": "6.1.22",
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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": "6.2.9",
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"lessThanOrEqual": "6.2.*",
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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": "6.3",
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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": "2.6.18",
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"versionEndExcluding": "4.14.312"
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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": "2.6.18",
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"versionEndExcluding": "4.19.280"
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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": "2.6.18",
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"versionEndExcluding": "5.4.240"
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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": "2.6.18",
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"versionEndExcluding": "5.10.177"
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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": "2.6.18",
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"versionEndExcluding": "5.15.105"
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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": "2.6.18",
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"versionEndExcluding": "6.1.22"
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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": "2.6.18",
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"versionEndExcluding": "6.2.9"
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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": "2.6.18",
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"versionEndExcluding": "6.3"
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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/1a6059f5ed57f48edfe7159404ff7d538d9d405b"
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},
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{
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"url": "https://git.kernel.org/stable/c/f55cb52ec98b22125f5bda36391edb8894f7e8cf"
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},
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{
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"url": "https://git.kernel.org/stable/c/2100e374251a8fc00cce1916cfc50f3cb652cbe3"
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},
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{
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"url": "https://git.kernel.org/stable/c/df1da53a7e98f0b2a0eb2241c154f148f2f2c1d8"
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},
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{
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"url": "https://git.kernel.org/stable/c/8bf8d5dade4c5e1d8a2386f29253ed28b5d87735"
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},
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{
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"url": "https://git.kernel.org/stable/c/54fa25ffab2b700df5abd58c136d64a912c53953"
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},
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{
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"url": "https://git.kernel.org/stable/c/ec15405b80fc15ffc87a23d01378ae061c1aba07"
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},
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{
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"url": "https://git.kernel.org/stable/c/e36a82bebbf7da814530d5a179bef9df5934b717"
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}
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],
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"title": "m68k: Only force 030 bus error if PC not in exception table",
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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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} |