GHSA-G9FR-WFPX-28XJ

Vulnerability from github – Published: 2024-10-21 18:30 – Updated: 2026-10-15 03:34
VLAI
Details

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

aoe: fix the potential use-after-free problem in more places

For fixing CVE-2023-6270, f98364e92662 ("aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts") makes tx() calling dev_put() instead of doing in aoecmd_cfg_pkts(). It avoids that the tx() runs into use-after-free.

Then Nicolai Stange found more places in aoe have potential use-after-free problem with tx(). e.g. revalidate(), aoecmd_ata_rw(), resend(), probe() and aoecmd_cfg_rsp(). Those functions also use aoenet_xmit() to push packet to tx queue. So they should also use dev_hold() to increase the refcnt of skb->dev.

On the other hand, moving dev_put() to tx() causes that the refcnt of skb->dev be reduced to a negative value, because corresponding dev_hold() are not called in revalidate(), aoecmd_ata_rw(), resend(), probe(), and aoecmd_cfg_rsp(). This patch fixed this issue.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2024-49982"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T18:15:18Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\naoe: fix the potential use-after-free problem in more places\n\nFor fixing CVE-2023-6270, f98364e92662 (\"aoe: fix the potential\nuse-after-free problem in aoecmd_cfg_pkts\") makes tx() calling dev_put()\ninstead of doing in aoecmd_cfg_pkts(). It avoids that the tx() runs\ninto use-after-free.\n\nThen Nicolai Stange found more places in aoe have potential use-after-free\nproblem with tx(). e.g. revalidate(), aoecmd_ata_rw(), resend(), probe()\nand aoecmd_cfg_rsp(). Those functions also use aoenet_xmit() to push\npacket to tx queue. So they should also use dev_hold() to increase the\nrefcnt of skb-\u003edev.\n\nOn the other hand, moving dev_put() to tx() causes that the refcnt of\nskb-\u003edev be reduced to a negative value, because corresponding\ndev_hold() are not called in revalidate(), aoecmd_ata_rw(), resend(),\nprobe(), and aoecmd_cfg_rsp(). This patch fixed this issue.",
  "id": "GHSA-g9fr-wfpx-28xj",
  "modified": "2026-10-15T03:34:12Z",
  "published": "2024-10-21T18:30:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49982"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/07b418d50ccbbca7e5d87a3a0d41d436cefebf79"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/12f7b89dd72b25da4eeaa22097877963cad6418e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d6e54fc71ad1ab0a87047fd9c211e75d86084a3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8253a60c89ec35c8f36fb2cc08cdf854c7a3eb58"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/89d9a69ae0c667e4d9d028028e2dcc837bae626f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a786265aecf39015418e4f930cc1c14603a01490"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/acc5103a0a8c200a52af7d732c36a8477436a3d3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc2cbf7525ac288e07d465f5a1d8cb8fb9599254"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f63461af2c1a86af4217910e47a5c46e3372e645"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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