164 lines
8.1 KiB
JSON
164 lines
8.1 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-2026-80727",
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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": "2026-08-26T14:34:25.789Z",
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"datePublished": "2026-09-03T08:21:46.523Z",
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"dateUpdated": "2026-09-03T08:21:46.523Z"
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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": "2026-09-03T08:21:46.523Z"
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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\nx86/mce: Set up the polling timer before CMCI discovery\n\nI hit the following on one of my machines:\n\n mce: CPU0 BANK15 CMCI inherited storm\n ------------[ cut here ]------------\n ODEBUG: assert_init not available (active state 0) object: (____ptrval____) object type: timer_list hint: 0x0\n WARNING: lib/debugobjects.c:632 at debug_object_assert_init+0x178/0x230, CPU#0: swapper/0/0\n CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 7.2.0-rc5 #3 PREEMPTLAZY\n RIP: 0010:debug_object_assert_init+0x18f/0x230\n Call Trace:\n <TASK>\n __mod_timer\n mce_timer_kick\n cmci_discover\n intel_init_cmci\n mce_intel_feature_init\n mcheck_cpu_init\n identify_cpu\n identify_boot_cpu\n arch_cpu_finalize_init\n start_kernel\n\nA second splat follows right after, from timer_setup() finding that same\ntimer already queued:\n\n ODEBUG: init active (active state 0) object: (____ptrval____) object type: timer_list hint: stub_timer+0x0/0x10\n\nThis is happening because CMCI storm detection is trying to modify the timer\nbefore latter was properly set up.\n\nSet up the timer first. __mcheck_cpu_setup_timer() only calls timer_setup(),\nand depends on neither the generic nor the vendor init.\n\n [ bp: Massage commit message. ]"
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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/x86/kernel/cpu/mce/core.c"
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],
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"versions": [
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{
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"version": "1f68ce2a027250aeeb1756391110cdc4dc97c797",
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"lessThan": "17ab68d0cf6a41bff61b1e13c6141d9e463736ae",
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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": "1f68ce2a027250aeeb1756391110cdc4dc97c797",
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"lessThan": "e708fc1566ebd4a2d3f2546e6310d64d362db80d",
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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": "1f68ce2a027250aeeb1756391110cdc4dc97c797",
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"lessThan": "4f4cba3947d2f0eceb32727e198ca2c149a653a9",
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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": "1f68ce2a027250aeeb1756391110cdc4dc97c797",
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"lessThan": "a213dfaa2596c1c0dc4dae91c14fbfa499c03223",
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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/x86/kernel/cpu/mce/core.c"
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],
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"versions": [
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{
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"version": "6.8",
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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": "6.8",
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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": "6.12.105",
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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": "6.18.45",
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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": "7.1.9",
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"lessThanOrEqual": "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",
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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": "6.8",
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"versionEndExcluding": "6.12.105"
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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": "6.8",
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"versionEndExcluding": "6.18.45"
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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": "6.8",
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"versionEndExcluding": "7.1.9"
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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": "6.8",
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"versionEndExcluding": "7.2"
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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/17ab68d0cf6a41bff61b1e13c6141d9e463736ae"
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},
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{
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"url": "https://git.kernel.org/stable/c/e708fc1566ebd4a2d3f2546e6310d64d362db80d"
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},
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{
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"url": "https://git.kernel.org/stable/c/4f4cba3947d2f0eceb32727e198ca2c149a653a9"
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},
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{
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"url": "https://git.kernel.org/stable/c/a213dfaa2596c1c0dc4dae91c14fbfa499c03223"
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}
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],
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"title": "x86/mce: Set up the polling timer before CMCI discovery",
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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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} |