{"id":"CVE-2026-98298","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: mmp_pdma: fix wrong sg length in mmp_pdma_prep_slave_sg()\n\nIn mmp_pdma_prep_slave_sg(), for_each_sg() iterates the scatterlist\nputting each entry into 'sg', …","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: mmp_pdma: fix wrong sg length in mmp_pdma_prep_slave_sg()\n\nIn mmp_pdma_prep_slave_sg(), for_each_sg() iterates the scatterlist\nputting each entry into 'sg', …","severity":"high","vendor":"Linux","product":"Linux","affected":["Linux >= c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 < f448a5f5bd10d792440a1b08cf2e8f311767032d","Linux >= c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 < 2148db529f082d6e3ca95413bf943442f4ef30cc","Linux >= c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 < d920c07aa6d89ec11afdb6976aafaee9563a5234","Linux >= c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 < 4a33886057e6d127555efb022879c583e966acc5","Linux >= c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 < 88a505330eb06128f7ce79a4c5e4832b7601b3d1","Linux >= c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 < bae65e4925928f77824ca0103122e2ed20ef5802","Linux >= c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 < 54ccc01012a240476edf641bf1a2b8bff54fe6ae","Linux >= c8acd6aa6bed3c0fd7898202f4ebc534db9085f2 < 075bc7b1d3dde5ed43fbaabbc1a69f09b7fc3a47","Linux 3.7"],"published":"2026-10-06","updated":"2026-10-06","sourceUpdated":"2026-10-06T09:18:20.537","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98298","references":[{"url":"https://git.kernel.org/stable/c/075bc7b1d3dde5ed43fbaabbc1a69f09b7fc3a47","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2148db529f082d6e3ca95413bf943442f4ef30cc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4a33886057e6d127555efb022879c583e966acc5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/54ccc01012a240476edf641bf1a2b8bff54fe6ae","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/88a505330eb06128f7ce79a4c5e4832b7601b3d1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bae65e4925928f77824ca0103122e2ed20ef5802","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d920c07aa6d89ec11afdb6976aafaee9563a5234","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f448a5f5bd10d792440a1b08cf2e8f311767032d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98298.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98298"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2546427"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98298"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98298"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98298.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-10-06T08:50:17.416Z","cvss":7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"vendor","cwe":["CWE-125"],"epss":0.00184,"epssPercentile":0.07961,"slug":"CVE-2026-98298","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: mmp_pdma: fix wrong sg length in mmp_pdma_prep_slave_sg()\n\nIn mmp_pdma_prep_slave_sg(), for_each_sg() iterates the scatterlist\nputting each entry into 'sg', but the entry length is read from 'sgl'\n(the list head) instead of 'sg' (the current entry):\n\n    for_each_sg(sgl, sg, sg_len, i) {\n        addr = sg_dma_address(sg);\n        avail = sg_dma_len(sgl);   /* should be 'sg' */\n\nConsequently 'avail' is always the length of the first entry. For\nmulti-sg lists this causes out-of-bounds reads when a later entry is\nshorter than the first, and silent data loss when it is longer.\nSingle-sg or uniformly-sized lists happen to mask the issue.\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 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98298.json)","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":219047,"id":"CVE-2026-98298","ts":1791707043449,"field":"cvss","old":null,"new":"7"},{"seq":219046,"id":"CVE-2026-98298","ts":1791707043449,"field":"severity","old":"none","new":"high"}]}