CVE-2026-98298

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98298", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.337Z", "datePublished": "2026-10-06T08:45:56.417Z", "dateUpdated": "2026-10-19T09:17:09.166Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:17:09.166Z"}, "descriptions": [{"lang": "en", "value": "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', 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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/dma/mmp_pdma.c"], "versions": [{"version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "lessThan": "f448a5f5bd10d792440a1b08cf2e8f311767032d", "status": "affected", "versionType": "git"}, {"version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "lessThan": "2148db529f082d6e3ca95413bf943442f4ef30cc", "status": "affected", "versionType": "git"}, {"version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "lessThan": "d920c07aa6d89ec11afdb6976aafaee9563a5234", "status": "affected", "versionType": "git"}, {"version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "lessThan": "4a33886057e6d127555efb022879c583e966acc5", "status": "affected", "versionType": "git"}, {"version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "lessThan": "88a505330eb06128f7ce79a4c5e4832b7601b3d1", "status": "affected", "versionType": "git"}, {"version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "lessThan": "bae65e4925928f77824ca0103122e2ed20ef5802", "status": "affected", "versionType": "git"}, {"version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "lessThan": "54ccc01012a240476edf641bf1a2b8bff54fe6ae", "status": "affected", "versionType": "git"}, {"version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "lessThan": "075bc7b1d3dde5ed43fbaabbc1a69f09b7fc3a47", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/dma/mmp_pdma.c"], "versions": [{"version": "3.7", "status": "affected"}, {"version": "0", "lessThan": "3.7", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.271", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.222", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.189", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.112", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.54", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.8", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "5.10.271"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "5.15.222"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.18.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "7.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f448a5f5bd10d792440a1b08cf2e8f311767032d"}, {"url": "https://git.kernel.org/stable/c/2148db529f082d6e3ca95413bf943442f4ef30cc"}, {"url": "https://git.kernel.org/stable/c/d920c07aa6d89ec11afdb6976aafaee9563a5234"}, {"url": "https://git.kernel.org/stable/c/4a33886057e6d127555efb022879c583e966acc5"}, {"url": "https://git.kernel.org/stable/c/88a505330eb06128f7ce79a4c5e4832b7601b3d1"}, {"url": "https://git.kernel.org/stable/c/bae65e4925928f77824ca0103122e2ed20ef5802"}, {"url": "https://git.kernel.org/stable/c/54ccc01012a240476edf641bf1a2b8bff54fe6ae"}, {"url": "https://git.kernel.org/stable/c/075bc7b1d3dde5ed43fbaabbc1a69f09b7fc3a47"}], "title": "dmaengine: mmp_pdma: fix wrong sg length in mmp_pdma_prep_slave_sg()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/dma/mmp_pdma.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "f448a5f5bd10d792440a1b08cf2e8f311767032d", "status": "affected", "version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "versionType": "git"}, {"lessThan": "2148db529f082d6e3ca95413bf943442f4ef30cc", "status": "affected", "version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "versionType": "git"}, {"lessThan": "d920c07aa6d89ec11afdb6976aafaee9563a5234", "status": "affected", "version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "versionType": "git"}, {"lessThan": "4a33886057e6d127555efb022879c583e966acc5", "status": "affected", "version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "versionType": "git"}, {"lessThan": "88a505330eb06128f7ce79a4c5e4832b7601b3d1", "status": "affected", "version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "versionType": "git"}, {"lessThan": "bae65e4925928f77824ca0103122e2ed20ef5802", "status": "affected", "version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "versionType": "git"}, {"lessThan": "54ccc01012a240476edf641bf1a2b8bff54fe6ae", "status": "affected", "version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "versionType": "git"}, {"lessThan": "075bc7b1d3dde5ed43fbaabbc1a69f09b7fc3a47", "status": "affected", "version": "c8acd6aa6bed3c0fd7898202f4ebc534db9085f2", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/dma/mmp_pdma.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.7"}, {"lessThan": "3.7", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.271", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.222", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.189", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.112", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.54", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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', 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."}], "id": "CVE-2026-98298", "lastModified": "2026-10-19T10:18:31.620", "metrics": {}, "published": "2026-10-06T09:18:20.537", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/075bc7b1d3dde5ed43fbaabbc1a69f09b7fc3a47"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2148db529f082d6e3ca95413bf943442f4ef30cc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4a33886057e6d127555efb022879c583e966acc5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/54ccc01012a240476edf641bf1a2b8bff54fe6ae"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/88a505330eb06128f7ce79a4c5e4832b7601b3d1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bae65e4925928f77824ca0103122e2ed20ef5802"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d920c07aa6d89ec11afdb6976aafaee9563a5234"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f448a5f5bd10d792440a1b08cf2e8f311767032d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: dmaengine: mmp_pdma: fix wrong sg length in mmp_pdma_prep_slave_sg()", "id": "2546427", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546427"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndmaengine: mmp_pdma: fix wrong sg length in mmp_pdma_prep_slave_sg()\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):\nfor_each_sg(sgl, sg, sg_len, i) {\naddr = sg_dma_address(sg);\navail = sg_dma_len(sgl); /* should be 'sg' */\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.", "A flaw was found in the Linux kernel's MMP Peripheral Direct Memory Access (PDMA) driver. When preparing multi-entry scatter-gather lists for Direct Memory Access (DMA) transfers, the driver incorrectly reads the buffer length from the initial list entry rather than the active entry being processed. A local user could exploit this flaw to trigger out-of-bounds memory reads, leading to system crashes or potential information disclosure, or cause silent data loss during DMA operations."], "name": "CVE-2026-98298", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98298\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98298\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98298.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c8acd6aa6bed3c0fd7898202f4ebc534db9085f2,f448a5f5bd10d792440a1b08cf2e8f311767032d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c8acd6aa6bed3c0fd7898202f4ebc534db9085f2,2148db529f082d6e3ca95413bf943442f4ef30cc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c8acd6aa6bed3c0fd7898202f4ebc534db9085f2,d920c07aa6d89ec11afdb6976aafaee9563a5234)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c8acd6aa6bed3c0fd7898202f4ebc534db9085f2,4a33886057e6d127555efb022879c583e966acc5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c8acd6aa6bed3c0fd7898202f4ebc534db9085f2,88a505330eb06128f7ce79a4c5e4832b7601b3d1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c8acd6aa6bed3c0fd7898202f4ebc534db9085f2,bae65e4925928f77824ca0103122e2ed20ef5802)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c8acd6aa6bed3c0fd7898202f4ebc534db9085f2,54ccc01012a240476edf641bf1a2b8bff54fe6ae)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c8acd6aa6bed3c0fd7898202f4ebc534db9085f2,075bc7b1d3dde5ed43fbaabbc1a69f09b7fc3a47)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.7"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,3.7)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.10.271,5.10.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.15.222,5.15.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.189,6.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.158,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.112,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.54,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.8,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc4,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-06T13:15:16.591238+00:00", "updated": "2026-10-11T16:45:06.905523+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}