GHSA-4WV6-7JCW-864J
Vulnerability from github – Published: 2026-10-18 18:31 – Updated: 2026-10-18 18:31In the Linux kernel, the following vulnerability has been resolved:
nfc: llcp: fix slab-out-of-bounds reads when logging service names
nfc_llcp_wks_sap() and nfc_llcp_build_sdreq_tlv() pass non-null- terminated strings to pr_debug() using the %s format specifier. The buffers are allocated via kmemdup() or come from netlink attributes and are not guaranteed to be null-terminated, causing __dynamic_pr_debug() to read beyond the allocated region:
KASAN: slab-out-of-bounds Read in __dynamic_pr_debug
Fix both call sites by using %.*s with the explicit length to limit the output to the actual length of the string.
{
"affected": [],
"aliases": [
"CVE-2026-98576"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-18T16:17:09Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: fix slab-out-of-bounds reads when logging service names\n\nnfc_llcp_wks_sap() and nfc_llcp_build_sdreq_tlv() pass non-null-\nterminated strings to pr_debug() using the %s format specifier.\nThe buffers are allocated via kmemdup() or come from netlink\nattributes and are not guaranteed to be null-terminated, causing\n__dynamic_pr_debug() to read beyond the allocated region:\n\n KASAN: slab-out-of-bounds Read in __dynamic_pr_debug\n\nFix both call sites by using %.*s with the explicit length to limit\nthe output to the actual length of the string.",
"id": "GHSA-4wv6-7jcw-864j",
"modified": "2026-10-18T18:31:54Z",
"published": "2026-10-18T18:31:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98576"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4262b12277a3e056c95fc49e9c4d7bd97035d16c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6d4ca872830e46fcca9c086bf19fa9bd2faf09d2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/75bfd9ef4da2fb49dac1f19880d2ac4ccd07b45b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/75f7c5a42fa1483f5912279a749417c284ad708f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7dcf371a35632f035baf77bcf2c129165f772ce4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8978dff632519712d1fa432991e1f2e857f90239"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8afb6c194f5781798d3ab3edf243cf5a24a9d1f9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a143f7835faa4fe0178448289feea4f84eeee8d6"
}
],
"schema_version": "1.4.0",
"severity": []
}
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