CVE-2025-37859
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
page_pool: avoid infinite loop to schedule delayed worker
We noticed the kworker in page_pool_release_retry() was waken up repeatedly and infinitely in production because of the buggy driver causing the inflight less than 0 and warning us in page_pool_inflight()[1].
Since the inflight value goes negative, it means we should not expect the whole page_pool to get back to work normally.
This patch mitigates the adverse effect by not rescheduling the kworker when detecting the inflight negative in page_pool_release_retry().
[1] [Mon Feb 10 20:36:11 2025] ------------[ cut here ]------------ [Mon Feb 10 20:36:11 2025] Negative(-51446) inflight packet-pages ... [Mon Feb 10 20:36:11 2025] Call Trace: [Mon Feb 10 20:36:11 2025] page_pool_release_retry+0x23/0x70 [Mon Feb 10 20:36:11 2025] process_one_work+0x1b1/0x370 [Mon Feb 10 20:36:11 2025] worker_thread+0x37/0x3a0 [Mon Feb 10 20:36:11 2025] kthread+0x11a/0x140 [Mon Feb 10 20:36:11 2025] ? process_one_work+0x370/0x370 [Mon Feb 10 20:36:11 2025] ? __kthread_cancel_work+0x40/0x40 [Mon Feb 10 20:36:11 2025] ret_from_fork+0x35/0x40 [Mon Feb 10 20:36:11 2025] ---[ end trace ebffe800f33e7e34 ]--- Note: before this patch, the above calltrace would flood the dmesg due to repeated reschedule of release_dw kworker.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.31%
- Percentil entre todas las CVEs puntuadas: 22
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (2)
CWE
- CWE-835
Referencias
- https://git.kernel.org/stable/c/43130d02baa137033c25297aaae95fd0edc41654
- https://git.kernel.org/stable/c/7204335d1991c23fc615ab76f31f175748a578e1
- https://git.kernel.org/stable/c/738d1812ec2e395e953258aea912ddd867d11a13
- https://git.kernel.org/stable/c/90e089a64504982f8d62f223027cb9f903781f78
- https://git.kernel.org/stable/c/91522aba56e9fcdf64da25ffef9b27f8fad48e0f
- https://git.kernel.org/stable/c/95f17738b86fd198924d874a5639bcdc49c7e5b8
- https://git.kernel.org/stable/c/9f71db4fb82deb889e0bac4a51b34daea7d506a3
- https://git.kernel.org/stable/c/c3c7c57017ce1d4b2d3788c1fc59e7e39026e158
- https://git.kernel.org/stable/c/e74e5aa33228c5e2cb4fc80ad103541a7b7805ec
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npage_pool: avoid infinite loop to schedule delayed worker\n\nWe noticed the kworker in page_pool_release_retry() was waken\nup repeatedly and infinitely in production because of the\nbuggy driver causing the inflight less than 0 and warning\nus in page_pool_inflight()[1].\n\nSince the inflight value goes negative, it means we should\nnot expect the whole page_pool to get back to work normally.\n\nThis patch mitigates the adverse effect by not rescheduling\nthe kworker when detecting the inflight negative in\npage_pool_release_retry().\n\n[1]\n[Mon Feb 10 20:36:11 2025] ------------[ cut here ]------------\n[Mon Feb 10 20:36:11 2025] Negative(-51446) inflight packet-pages\n...\n[Mon Feb 10 20:36:11 2025] Call Trace:\n[Mon Feb 10 20:36:11 2025] page_pool_release_retry+0x23/0x70\n[Mon Feb 10 20:36:11 2025] process_one_work+0x1b1/0x370\n[Mon Feb 10 20:36:11 2025] worker_thread+0x37/0x3a0\n[Mon Feb 10 20:36:11 2025] kthread+0x11a/0x140\n[Mon Feb 10 20:36:11 2025] ? process_one_work+0x370/0x370\n[Mon Feb 10 20:36:11 2025] ? __kthread_cancel_work+0x40/0x40\n[Mon Feb 10 20:36:11 2025] ret_from_fork+0x35/0x40\n[Mon Feb 10 20:36:11 2025] ---[ end trace ebffe800f33e7e34 ]---\nNote: before this patch, the above calltrace would flood the\ndmesg due to repeated reschedule of release_dw kworker."
},
{
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: page_pool: evitar bucle infinito para programar un trabajador retrasado. Observamos que el kworker en page_pool_release_retry() se reactivaba repetida e infinitamente en producción debido a un controlador defectuoso que causaba un valor inflight menor que 0 y nos advertía en page_pool_inflight()[1]. Dado que el valor inflight es negativo, no debemos esperar que todo el page_pool vuelva a funcionar con normalidad. Este parche mitiga el efecto adverso al no reprogramar el kworker al detectar un valor inflight negativo en page_pool_release_retry(). [1] [Lun 10 Feb 20:36:11 2025] ------------[ cortar aquí ]------------ [Lun 10 Feb 20:36:11 2025] Negativo(-51446) paquetes en vuelo-páginas ... [Lun 10 Feb 20:36:11 2025] Rastreo de llamadas: [Lun 10 Feb 20:36:11 2025] page_pool_release_retry+0x23/0x70 [Lun 10 Feb 20:36:11 2025] process_one_work+0x1b1/0x370 [Lun 10 Feb 20:36:11 2025] workers_thread+0x37/0x3a0 [Lun 10 Feb 20:36:11 2025] kthread+0x11a/0x140 [lun 10 feb 20:36:11 2025] ? process_one_work+0x370/0x370 [lun 10 feb 20:36:11 2025] ? __kthread_cancel_work+0x40/0x40 [lun 10 feb 20:36:11 2025] ret_from_fork+0x35/0x40 [lun 10 feb 20:36:11 2025] ---[ fin del seguimiento ebffe800f33e7e34 ]--- Nota: antes de este parche, el seguimiento de llamadas anterior inundaría dmesg debido a la reprogramación repetida de release_dw kworker."
}
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"lastModified": "2026-06-17T09:15:34.883",
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