{"id":"CVE-2026-98155","title":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/qaic: Address potential out-of-bounds read in resp_worker()\n\nAlthough 'commit 2feec5ae5df7 (\"accel/qaic: Handle DBC deactivation if the\nowner went away\")' fixes t…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/qaic: Address potential out-of-bounds read in resp_worker()\n\nAlthough 'commit 2feec5ae5df7 (\"accel/qaic: Handle DBC deactivation if the\nowner went away\")' fixes t…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-125"],"vendor":"Linux","product":"Linux","affected":["Linux >= 2dd67966f39a2abf8ccb4865031c722e40e01b7f < 5807a65f301b6c0e73a2dc03dd6f5e80a2861b72","Linux >= 08021f2d4a557d6491e3bcc288e96425f50aa3cf < f4b64488f3deca63f7fbc7d7c3835b2e668003f9","Linux >= f403094d9075d7c565a3d81002b781c325cb3c07 < 12deeade460d47031267256ba07add51cc7eabd0","Linux >= 2feec5ae5df785658924ab6bd91280dc3926507c < c72e81ee46bdd4c221114d6e9515e9b4647616d7","Linux >= 2feec5ae5df785658924ab6bd91280dc3926507c < ab243f74ab4084ca5c8dec608cb5b0deb27db067","Linux ee0180e77e6c8482644569632065411de844c515","Linux >= 6.6.134 < 6.6.158","Linux >= 6.12.81 < 6.12.111","Linux >= 6.18.22 < 6.18.53","Linux >= 6.19.12 < 6.20","Linux 7.0"],"published":"2026-09-25","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:18:37.400","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98155","references":[{"url":"https://git.kernel.org/stable/c/12deeade460d47031267256ba07add51cc7eabd0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5807a65f301b6c0e73a2dc03dd6f5e80a2861b72","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ab243f74ab4084ca5c8dec608cb5b0deb27db067","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c72e81ee46bdd4c221114d6e9515e9b4647616d7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f4b64488f3deca63f7fbc7d7c3835b2e668003f9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98155.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98155"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541368"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98155"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98155"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98155.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00117,"epssPercentile":0.01646,"cvssSource":"vendor","ingestedAt":"2026-09-25T11:06:38.805Z","slug":"CVE-2026-98155","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\naccel/qaic: Address potential out-of-bounds read in resp_worker()\n\nAlthough 'commit 2feec5ae5df7 (\"accel/qaic: Handle DBC deactivation if the\nowner went away\")' 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's 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().\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98155.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":212555,"id":"CVE-2026-98155","ts":1790668212837,"field":"cvss","old":null,"new":"5.5"},{"seq":212554,"id":"CVE-2026-98155","ts":1790668212837,"field":"severity","old":"none","new":"medium"}]}