FKIE_CVE-2026-23212

Vulnerability from fkie_nvd - Published: 2026-02-18 15:18 - Updated: 2026-03-18 20:37
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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: 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] ... value changed: 0x0000000100005365 -> 0x0000000100005366
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8c0be3277e7aefb2f900fc37ca3fe7df362e26f5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a7516cb0165926d308187e231ccd330e5e3ebff7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b956289b83887e0a306067b6003c3fcd81bfdf84Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bd98324e327e41de04b13e372cc16f73150df254Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f6c3665b6dc53c3ab7d31b585446a953a74340efPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
To clipboard 

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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: annotate data-races around slave-\u003elast_rx\n\nslave-\u003elast_rx and slave-\u003etarget_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 -\u003e 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-\u0026gt;last_rx\n\nslave-\u0026gt;last_rx y slave-\u0026gt;target_last_arp_rx[...] pueden ser le\u00eddos y escritos sin bloqueo. A\u00f1adir anotaciones READ_ONCE() y WRITE_ONCE().\n\nsyzbot inform\u00f3:\n\nERROR: KCSAN: condici\u00f3n de carrera de datos en bond_rcv_validate / bond_rcv_validate\n\nescritura en 0xffff888149f0d428 de 8 bytes por interrupci\u00f3n 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 interrupci\u00f3n 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 -\u0026gt; 0x0000000100005366"
    }
  ],
  "id": "CVE-2026-23212",
  "lastModified": "2026-03-18T20:37:42.577",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-02-18T15:18:42.470",
  "references": [
    {
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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