GHSA-887Q-3QPV-X22R
Vulnerability from github – Published: 2026-10-18 18:32 – Updated: 2026-10-21 15:41In the Linux kernel, the following vulnerability has been resolved:
net: systemport: Fix buffer overflow in bcm_sysport_get_stats()
When running on SYSTEMPORT Lite, certain statistics are unsupported and skipped during bcm_sysport_get_stats(). The variable 'j' tracks the compacted index into the destination data buffer, whereas 'i' iterates over all elements in bcm_sysport_gstrings_stats.
Because the buffer allocated by ethtool is sized only according to bcm_sysport_get_sset_count(), storing values at data[i] instead of data[j] writes past the allocated array bounds, leading to memory corruption.
Fix this by writing to data[j] instead of data[i].
{
"affected": [],
"aliases": [
"CVE-2026-98808"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-18T16:17:34Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: systemport: Fix buffer overflow in bcm_sysport_get_stats()\n\nWhen running on SYSTEMPORT Lite, certain statistics are unsupported and\nskipped during bcm_sysport_get_stats(). The variable \u0027j\u0027 tracks the\ncompacted index into the destination data buffer, whereas \u0027i\u0027 iterates\nover all elements in bcm_sysport_gstrings_stats.\n\nBecause the buffer allocated by ethtool is sized only according to\nbcm_sysport_get_sset_count(), storing values at data[i] instead of\ndata[j] writes past the allocated array bounds, leading to memory\ncorruption.\n\nFix this by writing to data[j] instead of data[i].",
"id": "GHSA-887q-3qpv-x22r",
"modified": "2026-10-21T15:41:59Z",
"published": "2026-10-18T18:32:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98808"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/29d1d35ad5ad379a904263ea1cd4ba1d71cd965f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/96a2b042051553df0d9f03b518dd3b7105b36935"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/96d8b26be5bc451188acdcee055948da45adbde0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/eb7b84af0ec5c71b4920e999611b466b3784496c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/faba9fdde480356f4a1d3b1a5713b7b354858a1c"
}
],
"schema_version": "1.4.0",
"severity": []
}
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