CVE-2026-23311

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23311", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:45.994Z", "datePublished": "2026-03-25T10:27:06.915Z", "dateUpdated": "2026-05-11T22:04:25.774Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T22:04:25.774Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/core: Fix invalid wait context in ctx_sched_in()\n\nLockdep found a bug in the event scheduling when a pinned event was\nfailed and wakes up the threads in the ring buffer like below.\n\nIt seems it should not grab a wait-queue lock under perf-context lock.\nLet's do it with irq_work.\n\n [ 39.913691] =============================\n [ 39.914157] [ BUG: Invalid wait context ]\n [ 39.914623] 6.15.0-next-20250530-next-2025053 #1 Not tainted\n [ 39.915271] -----------------------------\n [ 39.915731] repro/837 is trying to lock:\n [ 39.916191] ffff88801acfabd8 (&event->waitq){....}-{3:3}, at: __wake_up+0x26/0x60\n [ 39.917182] other info that might help us debug this:\n [ 39.917761] context-{5:5}\n [ 39.918079] 4 locks held by repro/837:\n [ 39.918530] #0: ffffffff8725cd00 (rcu_read_lock){....}-{1:3}, at: __perf_event_task_sched_in+0xd1/0xbc0\n [ 39.919612] #1: ffff88806ca3c6f8 (&cpuctx_lock){....}-{2:2}, at: __perf_event_task_sched_in+0x1a7/0xbc0\n [ 39.920748] #2: ffff88800d91fc18 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_in+0x1f9/0xbc0\n [ 39.921819] #3: ffffffff8725cd00 (rcu_read_lock){....}-{1:3}, at: perf_event_wakeup+0x6c/0x470"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/events/core.c"], "versions": [{"version": "f4b07fd62d4d11d57a15cb4ae01b3833282eb8f6", "lessThan": "c67ab059953e3b66cb17ddd6524c23f9e1f6526d", "status": "affected", "versionType": "git"}, {"version": "f4b07fd62d4d11d57a15cb4ae01b3833282eb8f6", "lessThan": "825f218ca70ef394c2b8546b313711d867b24584", "status": "affected", "versionType": "git"}, {"version": "f4b07fd62d4d11d57a15cb4ae01b3833282eb8f6", "lessThan": "486ff5ad49bc50315bcaf6d45f04a33ef0a45ced", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/events/core.c"], "versions": [{"version": "6.15", "status": "affected"}, {"version": "0", "lessThan": "6.15", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.17", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.7", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "6.18.17"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "6.19.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c67ab059953e3b66cb17ddd6524c23f9e1f6526d"}, {"url": "https://git.kernel.org/stable/c/825f218ca70ef394c2b8546b313711d867b24584"}, {"url": "https://git.kernel.org/stable/c/486ff5ad49bc50315bcaf6d45f04a33ef0a45ced"}], "title": "perf/core: Fix invalid wait context in ctx_sched_in()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["kernel/events/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "c67ab059953e3b66cb17ddd6524c23f9e1f6526d", "status": "affected", "version": "f4b07fd62d4d11d57a15cb4ae01b3833282eb8f6", "versionType": "git"}, {"lessThan": "825f218ca70ef394c2b8546b313711d867b24584", "status": "affected", "version": "f4b07fd62d4d11d57a15cb4ae01b3833282eb8f6", "versionType": "git"}, {"lessThan": "486ff5ad49bc50315bcaf6d45f04a33ef0a45ced", "status": "affected", "version": "f4b07fd62d4d11d57a15cb4ae01b3833282eb8f6", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["kernel/events/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.15"}, {"lessThan": "6.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.17", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.7", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7B6E9607-896D-4A84-B5CB-3311EB1230BD", "versionEndExcluding": "6.18.17", "versionStartIncluding": "6.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "69245D10-0B71-485E-80C3-A64F077004D3", "versionEndExcluding": "6.19.7", "versionStartIncluding": "6.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/core: Fix invalid wait context in ctx_sched_in()\n\nLockdep found a bug in the event scheduling when a pinned event was\nfailed and wakes up the threads in the ring buffer like below.\n\nIt seems it should not grab a wait-queue lock under perf-context lock.\nLet's do it with irq_work.\n\n [ 39.913691] =============================\n [ 39.914157] [ BUG: Invalid wait context ]\n [ 39.914623] 6.15.0-next-20250530-next-2025053 #1 Not tainted\n [ 39.915271] -----------------------------\n [ 39.915731] repro/837 is trying to lock:\n [ 39.916191] ffff88801acfabd8 (&event->waitq){....}-{3:3}, at: __wake_up+0x26/0x60\n [ 39.917182] other info that might help us debug this:\n [ 39.917761] context-{5:5}\n [ 39.918079] 4 locks held by repro/837:\n [ 39.918530] #0: ffffffff8725cd00 (rcu_read_lock){....}-{1:3}, at: __perf_event_task_sched_in+0xd1/0xbc0\n [ 39.919612] #1: ffff88806ca3c6f8 (&cpuctx_lock){....}-{2:2}, at: __perf_event_task_sched_in+0x1a7/0xbc0\n [ 39.920748] #2: ffff88800d91fc18 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_in+0x1f9/0xbc0\n [ 39.921819] #3: ffffffff8725cd00 (rcu_read_lock){....}-{1:3}, at: perf_event_wakeup+0x6c/0x470"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nperf/core: Correcci\u00f3n de contexto de espera inv\u00e1lido en ctx_sched_in()\n\nLockdep encontr\u00f3 un error en la programaci\u00f3n de eventos cuando un evento anclado fall\u00f3 y despierta los hilos en el b\u00fafer circular como se muestra a continuaci\u00f3n.\n\nParece que no deber\u00eda adquirir un bloqueo de cola de espera bajo el bloqueo de contexto de perf. Hag\u00e1moslo con irq_work.\n\n [ 39.913691] =============================\n [ 39.914157] [ ERROR: Contexto de espera inv\u00e1lido ]\n [ 39.914623] 6.15.0-next-20250530-next-2025053 #1 No contaminado\n [ 39.915271] -----------------------------\n [ 39.915731] repro/837 est\u00e1 intentando bloquear:\n [ 39.916191] ffff88801acfabd8 (&event->waitq){....}-{3:3}, en: __wake_up+0x26/0x60\n [ 39.917182] otra informaci\u00f3n que podr\u00eda ayudarnos a depurar esto:\n [ 39.917761] contexto-{5:5}\n [ 39.918079] 4 bloqueos mantenidos por repro/837:\n [ 39.918530] #0: ffffffff8725cd00 (rcu_read_lock){....}-{1:3}, en: __perf_event_task_sched_in+0xd1/0xbc0\n [ 39.919612] #1: ffff88806ca3c6f8 (&cpuctx_lock){....}-{2:2}, en: __perf_event_task_sched_in+0x1a7/0xbc0\n [ 39.920748] #2: ffff88800d91fc18 (&ctx->lock){....}-{2:2}, en: __perf_event_task_sched_in+0x1f9/0xbc0\n [ 39.921819] #3: ffffffff8725cd00 (rcu_read_lock){....}-{1:3}, en: perf_event_wakeup+0x6c/0x470"}], "id": "CVE-2026-23311", "lastModified": "2026-06-17T10:21:18.397", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-03-25T11:16:27.327", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/486ff5ad49bc50315bcaf6d45f04a33ef0a45ced"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/825f218ca70ef394c2b8546b313711d867b24584"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c67ab059953e3b66cb17ddd6524c23f9e1f6526d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: perf/core: Fix invalid wait context in ctx_sched_in()", "id": "2451208", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451208"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-413", "details": ["A flaw was found in the Linux kernel's perf/core component. This vulnerability occurs due to an invalid wait context during event scheduling, specifically when a pinned event fails and attempts to wake up threads in the ring buffer. An attacker could potentially exploit this to cause system instability or a denial of service (DoS) by triggering this specific event scheduling scenario. This issue is related to incorrect handling of wait-queue locks under perf-context locks."], "name": "CVE-2026-23311", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-03-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23311\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23311\nhttps://lore.kernel.org/linux-cve-announce/2026032529-CVE-2026-23311-8c0b@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f4b07fd62d4d11d57a15cb4ae01b3833282eb8f6,c67ab059953e3b66cb17ddd6524c23f9e1f6526d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f4b07fd62d4d11d57a15cb4ae01b3833282eb8f6,825f218ca70ef394c2b8546b313711d867b24584)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f4b07fd62d4d11d57a15cb4ae01b3833282eb8f6,486ff5ad49bc50315bcaf6d45f04a33ef0a45ced)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.15"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.15)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.17,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.7,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0-rc2,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-03-25T21:15:18.501156+00:00", "updated": "2026-05-26T17:00:13.125839+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}