GHSA-5VWR-FPFF-94GX
Vulnerability from github – Published: 2024-10-21 12:30 – Updated: 2026-05-12 12:32In the Linux kernel, the following vulnerability has been resolved:
block: fix potential invalid pointer dereference in blk_add_partition
The blk_add_partition() function initially used a single if-condition (IS_ERR(part)) to check for errors when adding a partition. This was modified to handle the specific case of -ENXIO separately, allowing the function to proceed without logging the error in this case. However, this change unintentionally left a path where md_autodetect_dev() could be called without confirming that part is a valid pointer.
This commit separates the error handling logic by splitting the initial if-condition, improving code readability and handling specific error scenarios explicitly. The function now distinguishes the general error case from -ENXIO without altering the existing behavior of md_autodetect_dev() calls.
{
"affected": [],
"aliases": [
"CVE-2024-47705"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-21T12:15:07Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: fix potential invalid pointer dereference in blk_add_partition\n\nThe blk_add_partition() function initially used a single if-condition\n(IS_ERR(part)) to check for errors when adding a partition. This was\nmodified to handle the specific case of -ENXIO separately, allowing the\nfunction to proceed without logging the error in this case. However,\nthis change unintentionally left a path where md_autodetect_dev()\ncould be called without confirming that part is a valid pointer.\n\nThis commit separates the error handling logic by splitting the\ninitial if-condition, improving code readability and handling specific\nerror scenarios explicitly. The function now distinguishes the general\nerror case from -ENXIO without altering the existing behavior of\nmd_autodetect_dev() calls.",
"id": "GHSA-5vwr-fpff-94gx",
"modified": "2026-05-12T12:32:10Z",
"published": "2024-10-21T12:30:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47705"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/26e197b7f9240a4ac301dd0ad520c0c697c2ea7d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4bc4272e2506941c3f3d4fb8b0c659ee814dcf6f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/64cf2a39202ca2d9df5ee70eb310b6141ce2b8ed"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/652039ba477c9a4ab43740cf2cb0d068d53508c2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/80f5bfbb80ea1615290dbc24f49d3d8c86db58fe"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/afe53ea9b378c376101d99d216f13b6256f75189"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cc4d21d9492db4e534d3e01253cf885c90dd2a8b"
},
{
"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:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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