CVE-2026-23311

{"id": "CVE-2026-23311", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2026-03-25T11:16:27.327", "references": [{"url": "https://git.kernel.org/stable/c/486ff5ad49bc50315bcaf6d45f04a33ef0a45ced", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/825f218ca70ef394c2b8546b313711d867b24584", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c67ab059953e3b66cb17ddd6524c23f9e1f6526d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-667"}]}], "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"}], "lastModified": "2026-05-26T15:04:15.040", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7B6E9607-896D-4A84-B5CB-3311EB1230BD", "versionEndExcluding": "6.18.17", "versionStartIncluding": "6.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "69245D10-0B71-485E-80C3-A64F077004D3", "versionEndExcluding": "6.19.7", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}