CVE-2024-40904

{"id": "CVE-2024-40904", "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": "2024-07-12T13:15:13.770", "references": [{"url": "https://git.kernel.org/stable/c/02a4c0499fc3a02e992b4c69a9809912af372d94", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/05b2cd6d33f700597e6f081b53c668a226a96d28", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/217d1f44fff560b3995a685a60aa66e55a7f0f56", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/22f00812862564b314784167a89f27b444f82a46", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/53250b54c92fe087fd4b0c48f85529efe1ebd879", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/72a3fe36cf9f0d030865e571f45a40f9c1e07e8a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/82075aff7ffccb1e72b0ac8aa349e473624d857c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c0747d76eb05542b5d49f67069b64ef5ff732c6c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-Other"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: class: cdc-wdm: Fix CPU lockup caused by excessive log messages\n\nThe syzbot fuzzer found that the interrupt-URB completion callback in\nthe cdc-wdm driver was taking too long, and the driver's immediate\nresubmission of interrupt URBs with -EPROTO status combined with the\ndummy-hcd emulation to cause a CPU lockup:\n\ncdc_wdm 1-1:1.0: nonzero urb status received: -71\ncdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes\nwatchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor782:6625]\nCPU#0 Utilization every 4s during lockup:\n\t#1: 98% system,\t 0% softirq,\t 3% hardirq,\t 0% idle\n\t#2: 98% system,\t 0% softirq,\t 3% hardirq,\t 0% idle\n\t#3: 98% system,\t 0% softirq,\t 3% hardirq,\t 0% idle\n\t#4: 98% system,\t 0% softirq,\t 3% hardirq,\t 0% idle\n\t#5: 98% system,\t 1% softirq,\t 3% hardirq,\t 0% idle\nModules linked in:\nirq event stamp: 73096\nhardirqs last enabled at (73095): [<ffff80008037bc00>] console_emit_next_record kernel/printk/printk.c:2935 [inline]\nhardirqs last enabled at (73095): [<ffff80008037bc00>] console_flush_all+0x650/0xb74 kernel/printk/printk.c:2994\nhardirqs last disabled at (73096): [<ffff80008af10b00>] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]\nhardirqs last disabled at (73096): [<ffff80008af10b00>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551\nsoftirqs last enabled at (73048): [<ffff8000801ea530>] softirq_handle_end kernel/softirq.c:400 [inline]\nsoftirqs last enabled at (73048): [<ffff8000801ea530>] handle_softirqs+0xa60/0xc34 kernel/softirq.c:582\nsoftirqs last disabled at (73043): [<ffff800080020de8>] __do_softirq+0x14/0x20 kernel/softirq.c:588\nCPU: 0 PID: 6625 Comm: syz-executor782 Tainted: G W 6.10.0-rc2-syzkaller-g8867bbd4a056 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024\n\nTesting showed that the problem did not occur if the two error\nmessages -- the first two lines above -- were removed; apparently adding\nmaterial to the kernel log takes a surprisingly large amount of time.\n\nIn any case, the best approach for preventing these lockups and to\navoid spamming the log with thousands of error messages per second is\nto ratelimit the two dev_err() calls. Therefore we replace them with\ndev_err_ratelimited()."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: USB: clase: cdc-wdm: soluciona el bloqueo de la CPU causado por mensajes de registro excesivos. El syzbot fuzzer descubri\u00f3 que la devoluci\u00f3n de llamada de finalizaci\u00f3n de interrupci\u00f3n-URB en el controlador cdc-wdm estaba tardando demasiado y el reenv\u00edo inmediato por parte del controlador de las URB de interrupci\u00f3n con estado -EPROTO combinado con la emulaci\u00f3n ficticia-hcd para provocar un bloqueo de la CPU: cdc_wdm 1-1:1.0: estado de urb distinto de cero recibido: -71 cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes perro guardi\u00e1n: ERROR: bloqueo suave - \u00a1CPU#0 bloqueada durante 26 segundos! [syz-executor782:6625] CPU#0 Utilizaci\u00f3n cada 4 segundos durante el bloqueo: #1: 98% sistema, 0% softirq, 3% hardirq, 0% inactivo #2: 98% sistema, 0% softirq, 3% hardirq, 0 % inactivo #3: 98% sistema, 0% softirq, 3% hardirq, 0% inactivo #4: 98% sistema, 0% softirq, 3% hardirq, 0% inactivo #5: 98% sistema, 1% softirq, 3 % hardirq, 0% inactivo M\u00f3dulos vinculados en: irq event stamp: 73096 hardirqs habilitado por \u00faltima vez en (73095): [] console_emit_next_record kernel/printk/printk.c:2935 [inline] hardirqs habilitado por \u00faltima vez en (73095): [ ] console_flush_all+0x650/0xb74 kernel/printk/printk.c:2994 hardirqs deshabilitado por \u00faltima vez en (73096): [] __el1_irq arch/arm64/kernel/entry-common.c:533 [en l\u00ednea] hardirqs \u00faltimo deshabilitado en (73096): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551 softirqs habilitado por \u00faltima vez en (73048): [] softirq_handle_end kernel/softirq.c:400 [en l\u00ednea] softirqs habilitados por \u00faltima vez en (73048): [] handle_softirqs+0xa60/0xc34 kernel/softirq.c:582 softirqs deshabilitados por \u00faltima vez en (73043): [] __do_softirq+0x14/0x20 kernel/softirq. c:588 CPU: 0 PID: 6625 Comm: syz-executor782 Contaminado: GW 6.10.0-rc2-syzkaller-g8867bbd4a056 #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/04/2024 Las pruebas mostraron que el problema no se produjo si se eliminaron los dos mensajes de error (las dos primeras l\u00edneas anteriores); aparentemente agregar material al registro del kernel lleva una cantidad de tiempo sorprendentemente grande. En cualquier caso, el mejor enfoque para prevenir estos bloqueos y evitar enviar spam al registro con miles de mensajes de error por segundo es limitar la velocidad de las dos llamadas dev_err(). Por eso los reemplazamos con dev_err_ratelimited()."}], "lastModified": "2024-09-19T13:17:13.123", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "379E23C3-E298-4CEF-AEA8-B94BD1CA55BA", "versionEndExcluding": "4.19.317", "versionStartIncluding": "2.6.28"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F4E38E58-1B9F-4DF2-AD3D-A8BEAA2959D8", "versionEndExcluding": "5.4.279", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "659E1520-6345-41AF-B893-A7C0647585A0", "versionEndExcluding": "5.10.221", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "10A39ACC-3005-40E8-875C-98A372D1FFD5", "versionEndExcluding": "5.15.162", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D435765D-2766-44F5-B319-F713A13E35CE", "versionEndExcluding": "6.1.95", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6F019D15-84C0-416B-8C57-7F51B68992F0", "versionEndExcluding": "6.6.35", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0ABBBA1D-F79D-4BDB-AA41-D1EDCC4A6975", "versionEndExcluding": "6.9.6", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2EBB4392-5FA6-4DA9-9772-8F9C750109FA"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "331C2F14-12C7-45D5-893D-8C52EE38EA10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3173713D-909A-4DD3-9DD4-1E171EB057EE"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}