CVE-2026-23212
Estado: AnalizadaMedia (4.7)—
In the Linux kernel, the following vulnerability has been resolved:
bonding: annotate data-races around slave->last_rx
slave->last_rx and slave->target_last_arp_rx[...] can be read and written locklessly. Add READ_ONCE() and WRITE_ONCE() annotations.
syzbot reported:
value changed: 0x0000000100005365 -> 0x0000000100005366
Detalles técnicos trazas, registros y código del informe original
BUG: KCSAN: data-race in bond_rcv_validate / bond_rcv_validate write to 0xffff888149f0d428 of 8 bytes by interrupt on cpu 1: bond_rcv_validate+0x202/0x7a0 drivers/net/bonding/bond_main.c:3335 bond_handle_frame+0xde/0x5e0 drivers/net/bonding/bond_main.c:1533 __netif_receive_skb_core+0x5b1/0x1950 net/core/dev.c:6039 __netif_receive_skb_one_core net/core/dev.c:6150 [inline] __netif_receive_skb+0x59/0x270 net/core/dev.c:6265 netif_receive_skb_internal net/core/dev.c:6351 [inline] netif_receive_skb+0x4b/0x2d0 net/core/dev.c:6410 ... write to 0xffff888149f0d428 of 8 bytes by interrupt on cpu 0: bond_rcv_validate+0x202/0x7a0 drivers/net/bonding/bond_main.c:3335 bond_handle_frame+0xde/0x5e0 drivers/net/bonding/bond_main.c:1533 __netif_receive_skb_core+0x5b1/0x1950 net/core/dev.c:6039 __netif_receive_skb_one_core net/core/dev.c:6150 [inline] __netif_receive_skb+0x59/0x270 net/core/dev.c:6265 netif_receive_skb_internal net/core/dev.c:6351 [inline] netif_receive_skb+0x4b/0x2d0 net/core/dev.c:6410 br_netif_receive_skb net/bridge/br_input.c:30 [inline] NF_HOOK include/linux/netfilter.h:318 [inline] ...
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 4.7
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.09%
- Percentil entre todas las CVEs puntuadas: 0
- Fecha de la puntuación: 4/10/2026
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
- CWE-367
Referencias
- https://git.kernel.org/stable/c/8c0be3277e7aefb2f900fc37ca3fe7df362e26f5
- https://git.kernel.org/stable/c/a7516cb0165926d308187e231ccd330e5e3ebff7
- https://git.kernel.org/stable/c/b956289b83887e0a306067b6003c3fcd81bfdf84
- https://git.kernel.org/stable/c/bd98324e327e41de04b13e372cc16f73150df254
- https://git.kernel.org/stable/c/f6c3665b6dc53c3ab7d31b585446a953a74340ef
JSON original (NVD)
Mostrar
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"timestamp": "2026-06-10T20:42:09.675357Z"
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"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
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"published": "2026-02-18T15:18:42.470",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: annotate data-races around slave->last_rx\n\nslave->last_rx and slave->target_last_arp_rx[...] can be read and written\nlocklessly. Add READ_ONCE() and WRITE_ONCE() annotations.\n\nsyzbot reported:\n\nBUG: KCSAN: data-race in bond_rcv_validate / bond_rcv_validate\n\nwrite to 0xffff888149f0d428 of 8 bytes by interrupt on cpu 1:\n bond_rcv_validate+0x202/0x7a0 drivers/net/bonding/bond_main.c:3335\n bond_handle_frame+0xde/0x5e0 drivers/net/bonding/bond_main.c:1533\n __netif_receive_skb_core+0x5b1/0x1950 net/core/dev.c:6039\n __netif_receive_skb_one_core net/core/dev.c:6150 [inline]\n __netif_receive_skb+0x59/0x270 net/core/dev.c:6265\n netif_receive_skb_internal net/core/dev.c:6351 [inline]\n netif_receive_skb+0x4b/0x2d0 net/core/dev.c:6410\n...\n\nwrite to 0xffff888149f0d428 of 8 bytes by interrupt on cpu 0:\n bond_rcv_validate+0x202/0x7a0 drivers/net/bonding/bond_main.c:3335\n bond_handle_frame+0xde/0x5e0 drivers/net/bonding/bond_main.c:1533\n __netif_receive_skb_core+0x5b1/0x1950 net/core/dev.c:6039\n __netif_receive_skb_one_core net/core/dev.c:6150 [inline]\n __netif_receive_skb+0x59/0x270 net/core/dev.c:6265\n netif_receive_skb_internal net/core/dev.c:6351 [inline]\n netif_receive_skb+0x4b/0x2d0 net/core/dev.c:6410\n br_netif_receive_skb net/bridge/br_input.c:30 [inline]\n NF_HOOK include/linux/netfilter.h:318 [inline]\n...\n\nvalue changed: 0x0000000100005365 -> 0x0000000100005366"
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nbonding: anotar condiciones de carrera de datos alrededor de slave->last_rx\n\nslave->last_rx y slave->target_last_arp_rx[...] pueden ser leídos y escritos sin bloqueo. Añadir anotaciones READ_ONCE() y WRITE_ONCE().\n\nsyzbot informó:\n\nERROR: KCSAN: condición de carrera de datos en bond_rcv_validate / bond_rcv_validate\n\nescritura en 0xffff888149f0d428 de 8 bytes por interrupción en la CPU 1:\n bond_rcv_validate+0x202/0x7a0 drivers/net/bonding/bond_main.c:3335\n bond_handle_frame+0xde/0x5e0 drivers/net/bonding/bond_main.c:1533\n __netif_receive_skb_core+0x5b1/0x1950 net/core/dev.c:6039\n __netif_receive_skb_one_core net/core/dev.c:6150 [inline]\n __netif_receive_skb+0x59/0x270 net/core/dev.c:6265\n netif_receive_skb_internal net/core/dev.c:6351 [inline]\n netif_receive_skb+0x4b/0x2d0 net/core/dev.c:6410\n...\n\nescritura en 0xffff888149f0d428 de 8 bytes por interrupción en la CPU 0:\n bond_rcv_validate+0x202/0x7a0 drivers/net/bonding/bond_main.c:3335\n bond_handle_frame+0xde/0x5e0 drivers/net/bonding/bond_main.c:1533\n __netif_receive_skb_core+0x5b1/0x1950 net/core/dev.c:6039\n __netif_receive_skb_one_core net/core/dev.c:6150 [inline]\n __netif_receive_skb+0x59/0x270 net/core/dev.c:6265\n netif_receive_skb_internal net/core/dev.c:6351 [inline]\n netif_receive_skb+0x4b/0x2d0 net/core/dev.c:6410\n br_netif_receive_skb net/bridge/br_input.c:30 [inline]\n NF_HOOK include/linux/netfilter.h:318 [inline]\n...\n\nvalor cambiado: 0x0000000100005365 -> 0x0000000100005366"
}
],
"lastModified": "2026-06-17T10:21:06.667",
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