CVE-2026-23308
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
pinctrl: equilibrium: fix warning trace on load
The callback functions 'eqbr_irq_mask()' and 'eqbr_irq_ack()' are also called in the callback function 'eqbr_irq_mask_ack()'. This is done to avoid source code duplication. The problem, is that in the function 'eqbr_irq_mask()' also calles the gpiolib function 'gpiochip_disable_irq()'
This generates the following warning trace in the log for every gpio on load.
In an other driver (drivers/pinctrl/starfive/pinctrl-starfive-jh7100.c) the interrupt is not disabled here.
To fix this, do not call the 'eqbr_irq_mask()' and 'eqbr_irq_ack()' function. Implement instead this directly without disabling the interrupts.
Detalles técnicos trazas, registros y código del informe original
[ 6.088111] ------------[ cut here ]------------ [ 6.092440] WARNING: CPU: 3 PID: 1 at drivers/gpio/gpiolib.c:3810 gpiochip_disable_irq+0x39/0x50 [ 6.097847] Modules linked in: [ 6.097847] CPU: 3 UID: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.12.59+ #0 [ 6.097847] Tainted: [W]=WARN [ 6.097847] RIP: 0010:gpiochip_disable_irq+0x39/0x50 [ 6.097847] Code: 39 c6 48 19 c0 21 c6 48 c1 e6 05 48 03 b2 38 03 00 00 48 81 fe 00 f0 ff ff 77 11 48 8b 46 08 f6 c4 02 74 06 f0 80 66 09 fb c3 <0f> 0b 90 0f 1f 40 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 [ 6.097847] RSP: 0000:ffffc9000000b830 EFLAGS: 00010046 [ 6.097847] RAX: 0000000000000045 RBX: ffff888001be02a0 RCX: 0000000000000008 [ 6.097847] RDX: ffff888001be9000 RSI: ffff888001b2dd00 RDI: ffff888001be02a0 [ 6.097847] RBP: ffffc9000000b860 R08: 0000000000000000 R09: 0000000000000000 [ 6.097847] R10: 0000000000000001 R11: ffff888001b2a154 R12: ffff888001be0514 [ 6.097847] R13: ffff888001be02a0 R14: 0000000000000008 R15: 0000000000000000 [ 6.097847] FS: 0000000000000000(0000) GS:ffff888041d80000(0000) knlGS:0000000000000000 [ 6.097847] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6.097847] CR2: 0000000000000000 CR3: 0000000003030000 CR4: 00000000001026b0 [ 6.097847] Call Trace: [ 6.097847] <TASK> [ 6.097847] ? eqbr_irq_mask+0x63/0x70 [ 6.097847] ? no_action+0x10/0x10 [ 6.097847] eqbr_irq_mask_ack+0x11/0x60
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: 0.12%
- Percentil entre todas las CVEs puntuadas: 2
- 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 (1)
CWE
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/3e00b1b332e54ba50cca6691f628b9c06574024f
- https://git.kernel.org/stable/c/53eba152810ef0fff8567b13ea0f62d48e62df6b
- https://git.kernel.org/stable/c/896449ad9053a42c6c710aeae6175170176cabd0
- https://git.kernel.org/stable/c/af3b0ec98dc1133521b612f8009fdd36b612aabe
- https://git.kernel.org/stable/c/ec54546e8d8a50a9824c139a127a8459d1b0b1bb
JSON original (NVD)
Mostrar
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"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
}
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"published": "2026-03-25T11:16:26.823",
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"description": [
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"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: equilibrium: fix warning trace on load\n\nThe callback functions 'eqbr_irq_mask()' and 'eqbr_irq_ack()' are also\ncalled in the callback function 'eqbr_irq_mask_ack()'. This is done to\navoid source code duplication. The problem, is that in the function\n'eqbr_irq_mask()' also calles the gpiolib function 'gpiochip_disable_irq()'\n\nThis generates the following warning trace in the log for every gpio on\nload.\n\n[ 6.088111] ------------[ cut here ]------------\n[ 6.092440] WARNING: CPU: 3 PID: 1 at drivers/gpio/gpiolib.c:3810 gpiochip_disable_irq+0x39/0x50\n[ 6.097847] Modules linked in:\n[ 6.097847] CPU: 3 UID: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.12.59+ #0\n[ 6.097847] Tainted: [W]=WARN\n[ 6.097847] RIP: 0010:gpiochip_disable_irq+0x39/0x50\n[ 6.097847] Code: 39 c6 48 19 c0 21 c6 48 c1 e6 05 48 03 b2 38 03 00 00 48 81 fe 00 f0 ff ff 77 11 48 8b 46 08 f6 c4 02 74 06 f0 80 66 09 fb c3 <0f> 0b 90 0f 1f 40 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40\n[ 6.097847] RSP: 0000:ffffc9000000b830 EFLAGS: 00010046\n[ 6.097847] RAX: 0000000000000045 RBX: ffff888001be02a0 RCX: 0000000000000008\n[ 6.097847] RDX: ffff888001be9000 RSI: ffff888001b2dd00 RDI: ffff888001be02a0\n[ 6.097847] RBP: ffffc9000000b860 R08: 0000000000000000 R09: 0000000000000000\n[ 6.097847] R10: 0000000000000001 R11: ffff888001b2a154 R12: ffff888001be0514\n[ 6.097847] R13: ffff888001be02a0 R14: 0000000000000008 R15: 0000000000000000\n[ 6.097847] FS: 0000000000000000(0000) GS:ffff888041d80000(0000) knlGS:0000000000000000\n[ 6.097847] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 6.097847] CR2: 0000000000000000 CR3: 0000000003030000 CR4: 00000000001026b0\n[ 6.097847] Call Trace:\n[ 6.097847] <TASK>\n[ 6.097847] ? eqbr_irq_mask+0x63/0x70\n[ 6.097847] ? no_action+0x10/0x10\n[ 6.097847] eqbr_irq_mask_ack+0x11/0x60\n\nIn an other driver (drivers/pinctrl/starfive/pinctrl-starfive-jh7100.c) the\ninterrupt is not disabled here.\n\nTo fix this, do not call the 'eqbr_irq_mask()' and 'eqbr_irq_ack()'\nfunction. Implement instead this directly without disabling the interrupts."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\npinctrl: equilibrium: corregir el rastro de advertencia al cargar\n\nLas funciones de callback 'eqbr_irq_mask()' y 'eqbr_irq_ack()' también se llaman en la función de callback 'eqbr_irq_mask_ack()'. Esto se hace para evitar la duplicación de código fuente. El problema, es que en la función 'eqbr_irq_mask()' también llama a la función gpiolib 'gpiochip_disable_irq()'.\n\nEsto genera el siguiente rastro de advertencia en el log para cada gpio al cargar.\n\n[ 6.088111] ------------[ cut here ]------------\n[ 6.092440] WARNING: CPU: 3 PID: 1 at drivers/gpio/gpiolib.c:3810 gpiochip_disable_irq+0x39/0x50\n[ 6.097847] Modules linked in:\n[ 6.097847] CPU: 3 UID: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.12.59+ #0\n[ 6.097847] Tainted: [W]=WARN\n[ 6.097847] RIP: 0010:gpiochip_disable_irq+0x39/0x50\n[ 6.097847] Code: 39 c6 48 19 c0 21 c6 48 c1 e6 05 48 03 b2 38 03 00 00 48 81 fe 00 f0 ff ff 77 11 48 8b 46 08 f6 c4 02 74 06 f0 80 66 09 fb c3 <0f> 0b 90 0f 1f 40 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40\n[ 6.097847] RSP: 0000:ffffc9000000b830 EFLAGS: 00010046\n[ 6.097847] RAX: 0000000000000045 RBX: ffff888001be02a0 RCX: 0000000000000008\n[ 6.097847] RDX: ffff888001be9000 RSI: ffff888001b2dd00 RDI: ffff888001be02a0\n[ 6.097847] RBP: ffffc9000000b860 R08: 0000000000000000 R09: 0000000000000000\n[ 6.097847] R10: 0000000000000001 R11: ffff888001b2a154 R12: ffff888001be0514\n[ 6.097847] R13: ffff888001be02a0 R14: 0000000000000008 R15: 0000000000000000\n[ 6.097847] FS: 0000000000000000(0000) GS:ffff888041d80000(0000) knlGS:0000000000000000\n[ 6.097847] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 6.097847] CR2: 0000000000000000 CR3: 0000000003030000 CR4: 00000000001026b0\n[ 6.097847] Call Trace:\n[ 6.097847] \n[ 6.097847] ? eqbr_irq_mask+0x63/0x70\n[ 6.097847] ? no_action+0x10/0x10\n[ 6.097847] eqbr_irq_mask_ack+0x11/0x60\n\nEn otro controlador (drivers/pinctrl/starfive/pinctrl-starfive-jh7100.c) la interrupción no se deshabilita aquí.\n\nPara solucionar esto, no llame a la función 'eqbr_irq_mask()' y 'eqbr_irq_ack()'. En su lugar, implemente esto directamente sin deshabilitar las interrupciones."
}
],
"lastModified": "2026-06-17T10:21:18.050",
"configurations": [
{
"nodes": [
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