{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-21981",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-21981"
  ],
  "published": "2025-04-01T15:46:27Z",
  "summary": "ice: fix memory leak in aRFS after reset",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix memory leak in aRFS after reset\n\nFix aRFS (accelerated Receive Flow Steering) structures memory leak by\nadding a checker to verify if aRFS memory is already allocated while\nconfiguring VSI. aRFS objects are allocated in two cases:\n- as part of VSI initialization (at probe), and\n- as part of reset handling\n\nHowever, VSI reconfiguration executed during reset involves memory\nallocation one more time, without prior releasing already allocated\nresources. This led to the memory leak with the following signature:\n\n[root@os-delivery ~]# cat /sys/kernel/debug/kmemleak\nunreferenced object 0xff3c1ca7252e6000 (size 8192):\n  comm \"kworker/0:0\", pid 8, jiffies 4296833052\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace (crc 0):\n    [<ffffffff991ec485>] __kmalloc_cache_noprof+0x275/0x340\n    [<ffffffffc0a6e06a>] ice_init_arfs+0x3a/0xe0 [ice]\n    [<ffffffffc09f1027>] ice_vsi_cfg_def+0x607/0x850 [ice]\n    [<ffffffffc09f244b>] ice_vsi_setup+0x5b/0x130 [ice]\n    [<ffffffffc09c2131>] ice_init+0x1c1/0x460 [ice]\n    [<ffffffffc09c64af>] ice_probe+0x2af/0x520 [ice]\n    [<ffffffff994fbcd3>] local_pci_probe+0x43/0xa0\n    [<ffffffff98f07103>] work_for_cpu_fn+0x13/0x20\n    [<ffffffff98f0b6d9>] process_one_work+0x179/0x390\n    [<ffffffff98f0c1e9>] worker_thread+0x239/0x340\n    [<ffffffff98f14abc>] kthread+0xcc/0x100\n    [<ffffffff98e45a6d>] ret_from_fork+0x2d/0x50\n    [<ffffffff98e083ba>] ret_from_fork_asm+0x1a/0x30\n    ...",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.132",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-21981"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ef2bc94059836a115430a6ad9d2838b0b34dc8f5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e6902101f34f098af59b0d1d8cf90c4124c02c6a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fcbacc47d16306c87ad1b820b7a575f6e9eae58b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5d30d256661fc11b6e73fac6c3783a702e1006a3"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3b27e6e10a32589fcd293b8933ab6de9387a460e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/78f3d64b30210c0e521c59357431aca14024cb79"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/23d97f18901ef5e4e264e3b1777fe65c760186b5"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}