ghsa-f2j7-h8j9-xxjc
Vulnerability from github
Published
2025-05-20 18:30
Modified
2025-05-20 18:30
Details

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

virtio-net: free xsk_buffs on error in virtnet_xsk_pool_enable()

The selftests added to our CI by Bui Quang Minh recently reveals that there is a mem leak on the error path of virtnet_xsk_pool_enable():

unreferenced object 0xffff88800a68a000 (size 2048): comm "xdp_helper", pid 318, jiffies 4294692778 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kvmalloc_node_noprof+0x402/0x570 virtnet_xsk_pool_enable+0x293/0x6a0 (drivers/net/virtio_net.c:5882) xp_assign_dev+0x369/0x670 (net/xdp/xsk_buff_pool.c:226) xsk_bind+0x6a5/0x1ae0 __sys_bind+0x15e/0x230 __x64_sys_bind+0x72/0xb0 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2025-37955"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-20T16:15:33Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio-net: free xsk_buffs on error in virtnet_xsk_pool_enable()\n\nThe selftests added to our CI by Bui Quang Minh recently reveals\nthat there is a mem leak on the error path of virtnet_xsk_pool_enable():\n\nunreferenced object 0xffff88800a68a000 (size 2048):\n  comm \"xdp_helper\", pid 318, jiffies 4294692778\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    __kvmalloc_node_noprof+0x402/0x570\n    virtnet_xsk_pool_enable+0x293/0x6a0 (drivers/net/virtio_net.c:5882)\n    xp_assign_dev+0x369/0x670 (net/xdp/xsk_buff_pool.c:226)\n    xsk_bind+0x6a5/0x1ae0\n    __sys_bind+0x15e/0x230\n    __x64_sys_bind+0x72/0xb0\n    do_syscall_64+0xc1/0x1d0\n    entry_SYSCALL_64_after_hwframe+0x77/0x7f",
  "id": "GHSA-f2j7-h8j9-xxjc",
  "modified": "2025-05-20T18:30:56Z",
  "published": "2025-05-20T18:30:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37955"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4397684a292a71fbc1e815c3e283f7490ddce5ae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/94a6f6c204abb2b2dcd2ce287536cc924469cfb5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ba6917810bb4a5a32661fa941717399052b3f0d9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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