CVE-2026-98155 (GCVE-0-2026-98155)
Vulnerability from cvelistv5
Published
2026-09-25 10:36
Modified
2026-10-19 09:14
Severity ?
Summary
In 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().
References
Impacted products
Vendor Product Version
Linux Linux Version: 2dd67966f39a2abf8ccb4865031c722e40e01b7f
Version: 08021f2d4a557d6491e3bcc288e96425f50aa3cf
Version: f403094d9075d7c565a3d81002b781c325cb3c07
Version: 2feec5ae5df785658924ab6bd91280dc3926507c
Version: 2feec5ae5df785658924ab6bd91280dc3926507c
Version: ee0180e77e6c8482644569632065411de844c515
Version: 6.6.134   ≤
Version: 6.12.81   ≤
Version: 6.18.22   ≤
Version: 6.19.12   ≤
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{
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      "descriptions": [
        {
          "lang": "en",
          "value": "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()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:14:49.119Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/5807a65f301b6c0e73a2dc03dd6f5e80a2861b72"
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          "url": "https://git.kernel.org/stable/c/ab243f74ab4084ca5c8dec608cb5b0deb27db067"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98155",
    "datePublished": "2026-09-25T10:36:25.812Z",
    "dateReserved": "2026-09-25T10:25:14.320Z",
    "dateUpdated": "2026-10-19T09:14:49.119Z",
    "state": "PUBLISHED"
  },
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}


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