« Volver al listado

CVE-2026-97956

Estado: RecibidaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

net: net_failover: Fix the deadlock in net_failover_slave_name_change()

This is a sibling fix of commit b84c5632c7b3 ("net: net_failover: Fix the deadlock in slave register"). There is netdev_lock_ops() in the upper callers, so using netif_open() instead of dev_open().

Detalles técnicos trazas, registros y código del informe original
Call Trace:
 __schedule+0x2bb/0x650
 schedule+0x27/0xb0
 schedule_preempt_disabled+0x15/0x30
 __mutex_lock.constprop.0+0x550/0xaf0
 __mutex_lock_slowpath+0x13/0x20
 mutex_lock+0x3b/0x50
 dev_open+0x3b/0xe0
 net_failover_slave_name_change+0x22/0x40
 failover_event+0xd4/0x1e0
 notifier_call_chain+0x62/0xf0
 raw_notifier_call_chain+0x16/0x30
 call_netdevice_notifiers_info+0x50/0x80
 netif_change_name+0x200/0x330
 do_setlink.isra.0+0xb12/0xdf0
 ? security_capable+0x9a/0x1e0
 ? ns_capable+0x31/0x60
 rtnl_setlink+0x302/0x670
 ? netlink_recvmsg+0x296/0x340
 ? security_capable+0x9a/0x1e0
 ? __pfx_rtnl_setlink+0x10/0x10
 rtnetlink_rcv_msg+0x384/0x460
 ? __pfx_rtnetlink_rcv_msg+0x10/0x10
 netlink_rcv_skb+0x61/0x120
 rtnetlink_rcv+0x15/0x30
 netlink_unicast+0x28f/0x3c0
 netlink_sendmsg+0x216/0x450
 __sys_sendto+0x222/0x230
 __x64_sys_sendto+0x24/0x40
 x64_sys_call+0x1d5d/0x2390
 do_syscall_64+0x105/0x5a0
 ? do_syscall_64+0x140/0x5a0
 ? exc_page_fault+0x94/0x1e0
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

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)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-97956",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7e4d784f5810bba76c4593791028e13cce4af547",
              "lessThan": "4b20e66d2e52d3628db4dccc1a33f134e73375d5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "7e4d784f5810bba76c4593791028e13cce4af547",
              "lessThan": "c49bfa2c5dbd89f7683c26fc08b11e7369ea11e5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "7e4d784f5810bba76c4593791028e13cce4af547",
              "lessThan": "985a663bf00799c1daf1c5789efa6406958780c8",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/net_failover.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.15",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.7",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/net_failover.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-25T11:17:23.253",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/4b20e66d2e52d3628db4dccc1a33f134e73375d5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/985a663bf00799c1daf1c5789efa6406958780c8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c49bfa2c5dbd89f7683c26fc08b11e7369ea11e5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: net_failover: Fix the deadlock in net_failover_slave_name_change()\n\nThis is a sibling fix of commit\nb84c5632c7b3 (\"net: net_failover: Fix the deadlock in slave register\").\nThere is netdev_lock_ops() in the upper callers, so using netif_open()\ninstead of dev_open().\n\nCall Trace:\n __schedule+0x2bb/0x650\n schedule+0x27/0xb0\n schedule_preempt_disabled+0x15/0x30\n __mutex_lock.constprop.0+0x550/0xaf0\n __mutex_lock_slowpath+0x13/0x20\n mutex_lock+0x3b/0x50\n dev_open+0x3b/0xe0\n net_failover_slave_name_change+0x22/0x40\n failover_event+0xd4/0x1e0\n notifier_call_chain+0x62/0xf0\n raw_notifier_call_chain+0x16/0x30\n call_netdevice_notifiers_info+0x50/0x80\n netif_change_name+0x200/0x330\n do_setlink.isra.0+0xb12/0xdf0\n ? security_capable+0x9a/0x1e0\n ? ns_capable+0x31/0x60\n rtnl_setlink+0x302/0x670\n ? netlink_recvmsg+0x296/0x340\n ? security_capable+0x9a/0x1e0\n ? __pfx_rtnl_setlink+0x10/0x10\n rtnetlink_rcv_msg+0x384/0x460\n ? __pfx_rtnetlink_rcv_msg+0x10/0x10\n netlink_rcv_skb+0x61/0x120\n rtnetlink_rcv+0x15/0x30\n netlink_unicast+0x28f/0x3c0\n netlink_sendmsg+0x216/0x450\n __sys_sendto+0x222/0x230\n __x64_sys_sendto+0x24/0x40\n x64_sys_call+0x1d5d/0x2390\n do_syscall_64+0x105/0x5a0\n ? do_syscall_64+0x140/0x5a0\n ? exc_page_fault+0x94/0x1e0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e"
    }
  ],
  "lastModified": "2026-09-25T11:17:23.253",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}