185 lines
8.7 KiB
JSON
185 lines
8.7 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-2026-98477",
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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": "2026-09-25T10:25:14.351Z",
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"datePublished": "2026-10-18T15:15:51.475Z",
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"dateUpdated": "2026-10-21T12:55:10.170Z"
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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": "2026-10-21T12:55:10.170Z"
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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\nperf/core: Fix NULL pmu_ctx passed to pmu->sched_task()\n\nperf_pmu_sched_task() returns early when cpuctx->task_ctx is set, and\ncpc->task_epc is only non-NULL while a task context is scheduled in on\nthis CPU. __perf_pmu_sched_task() therefore always passes NULL:\n\n Unable to handle kernel NULL pointer dereference at virtual address 00\n pc : armv8pmu_sched_task+0x14/0x50\n Call trace:\n armv8pmu_sched_task+0x14/0x50 (P)\n perf_pmu_sched_task+0xac/0x108\n __perf_event_task_sched_out+0x6c/0xe0\n\nPass &cpc->epc instead, the CPU-wide context for this PMU, which the\nfunction already dereferences a few lines up to find pmu.\n\narmv8pmu_sched_task() is the only in-tree implementation that\ndereferences the argument, and it only reads ->pmu, so the oops needs\nBRBE, added in v6.17."
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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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"kernel/events/core.c"
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],
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"versions": [
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{
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"version": "bd27568117664b8b3e259721393df420ed51f57b",
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"lessThan": "98181f9721f75f1a544dc563b0d8fed1d5c398d5",
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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": "bd27568117664b8b3e259721393df420ed51f57b",
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"lessThan": "b5409311b606d536cc485f3706c242c2afa93edb",
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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": "bd27568117664b8b3e259721393df420ed51f57b",
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"lessThan": "249a2bd87a0e57dc28f36e992807edc9cae309b5",
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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": "bd27568117664b8b3e259721393df420ed51f57b",
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"lessThan": "ec15f6a50183fc01f470af74ad49900fb3731fca",
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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": "bd27568117664b8b3e259721393df420ed51f57b",
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"lessThan": "36bb85cf36cab15fb611cb44b78a5df06e4e69a2",
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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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"kernel/events/core.c"
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],
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"versions": [
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{
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"version": "6.2",
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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": "6.2",
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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": "6.6.160",
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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": "6.12.112",
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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": "6.2",
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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": "6.2",
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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": "6.2",
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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": "6.2",
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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": "6.2",
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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/98181f9721f75f1a544dc563b0d8fed1d5c398d5"
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},
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{
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"url": "https://git.kernel.org/stable/c/b5409311b606d536cc485f3706c242c2afa93edb"
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},
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{
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"url": "https://git.kernel.org/stable/c/249a2bd87a0e57dc28f36e992807edc9cae309b5"
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},
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{
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"url": "https://git.kernel.org/stable/c/ec15f6a50183fc01f470af74ad49900fb3731fca"
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},
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{
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"url": "https://git.kernel.org/stable/c/36bb85cf36cab15fb611cb44b78a5df06e4e69a2"
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}
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],
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"title": "perf/core: Fix NULL pmu_ctx passed to pmu->sched_task()",
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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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} |