GHSA-FP97-66MW-5Q4H
Vulnerability from github – Published: 2026-09-25 12:31 – Updated: 2026-10-20 18:31In the Linux kernel, the following vulnerability has been resolved:
accel/qaic: Address potential out-of-bounds read in resp_worker()
Although 'commit 2feec5ae5df7 ("accel/qaic: Handle DBC deactivation if the owner went away")' fixes the scenario it was intended for by walking the message and only decoding QAIC_TRANS_DEACTIVATE_FROM_DEV, if present, it skipped over the bounds checking code that is included in decode_message(). This could lead to issues such as reading past the slab allocation's end, infinite loops or kernel panics. For those issues to happen, a malformed wire message is needed to be sent from the device.
Instead of duplicating the bounds checking code already present in decode_message(), use the function inside resp_worker().
{
"affected": [],
"aliases": [
"CVE-2026-98155"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-25T11:17:47Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/qaic: Address potential out-of-bounds read in resp_worker()\n\nAlthough \u0027commit 2feec5ae5df7 (\"accel/qaic: Handle DBC deactivation if the\nowner went away\")\u0027 fixes the scenario it was intended for by walking the\nmessage and only decoding QAIC_TRANS_DEACTIVATE_FROM_DEV, if present, it\nskipped over the bounds checking code that is included in decode_message().\nThis could lead to issues such as reading past the slab allocation\u0027s end,\ninfinite loops or kernel panics. For those issues to happen, a malformed\nwire message is needed to be sent from the device.\n\nInstead of duplicating the bounds checking code already present in\ndecode_message(), use the function inside resp_worker().",
"id": "GHSA-fp97-66mw-5q4h",
"modified": "2026-10-20T18:31:29Z",
"published": "2026-09-25T12:31:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98155"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/12deeade460d47031267256ba07add51cc7eabd0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5807a65f301b6c0e73a2dc03dd6f5e80a2861b72"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ab243f74ab4084ca5c8dec608cb5b0deb27db067"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c72e81ee46bdd4c221114d6e9515e9b4647616d7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f4b64488f3deca63f7fbc7d7c3835b2e668003f9"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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