CVE-2026-98078

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It may disclose stale heap data and\nreplace the live connection sequence state with values read from the\nbuffer.\n\nPass the connection sequence state as the source and the message payload as\nthe destination for both blocks."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/ipvs/ip_vs_sync.c"], "versions": [{"version": "986a075795339c5ea1122ce9290dfd5504252eb0", "lessThan": "ae38b2ae16f709c0193e1b4340bde26ef3e2687d", "status": "affected", "versionType": "git"}, {"version": "986a075795339c5ea1122ce9290dfd5504252eb0", "lessThan": "bbc68ba258a4eb0a2ca3b3a105550801aa8b00b0", "status": "affected", "versionType": "git"}, {"version": "986a075795339c5ea1122ce9290dfd5504252eb0", "lessThan": "f487b5788f15c6c32a219ed1480d25c93fc18d30", "status": "affected", "versionType": "git"}, {"version": "986a075795339c5ea1122ce9290dfd5504252eb0", "lessThan": "677ff8ab30a663cde984d8afe86465fd0d81aeef", "status": "affected", "versionType": "git"}, {"version": "986a075795339c5ea1122ce9290dfd5504252eb0", "lessThan": "e1c9f9446d3eaae323f1689f9e5de3b1ad6e47ec", "status": "affected", "versionType": "git"}, {"version": "986a075795339c5ea1122ce9290dfd5504252eb0", "lessThan": "524599714558da83747c04952d378155c69f5b6b", "status": "affected", "versionType": "git"}, {"version": "986a075795339c5ea1122ce9290dfd5504252eb0", "lessThan": "de6cc6ec7932bc530f2bb92005dac9123d50659c", "status": "affected", "versionType": "git"}, {"version": "986a075795339c5ea1122ce9290dfd5504252eb0", "lessThan": "b04578b74f2d3755548fe9e829e3b2a6c6f966a1", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/ipvs/ip_vs_sync.c"], "versions": [{"version": "2.6.39", "status": "affected"}, {"version": "0", "lessThan": "2.6.39", "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": "6.12.111", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.53", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.7", "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": "2.6.39", "versionEndExcluding": "5.10.271"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "5.15.222"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.12.111"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.18.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "7.2.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ae38b2ae16f709c0193e1b4340bde26ef3e2687d"}, {"url": "https://git.kernel.org/stable/c/bbc68ba258a4eb0a2ca3b3a105550801aa8b00b0"}, {"url": "https://git.kernel.org/stable/c/f487b5788f15c6c32a219ed1480d25c93fc18d30"}, {"url": "https://git.kernel.org/stable/c/677ff8ab30a663cde984d8afe86465fd0d81aeef"}, {"url": "https://git.kernel.org/stable/c/e1c9f9446d3eaae323f1689f9e5de3b1ad6e47ec"}, {"url": "https://git.kernel.org/stable/c/524599714558da83747c04952d378155c69f5b6b"}, {"url": "https://git.kernel.org/stable/c/de6cc6ec7932bc530f2bb92005dac9123d50659c"}, {"url": "https://git.kernel.org/stable/c/b04578b74f2d3755548fe9e829e3b2a6c6f966a1"}], "title": "ipvs: fix reversed sequence option serialization", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

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The version 1 sync sender passes these\narguments in reverse for both sequence blocks. This leaves 24 bytes of the\nkmalloc-backed message unwritten. It may disclose stale heap data and\nreplace the live connection sequence state with values read from the\nbuffer.\n\nPass the connection sequence state as the source and the message payload as\nthe destination for both blocks."}], "id": "CVE-2026-98078", "lastModified": "2026-10-19T10:18:03.640", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 2.5, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-09-25T11:17:37.200", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/524599714558da83747c04952d378155c69f5b6b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/677ff8ab30a663cde984d8afe86465fd0d81aeef"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ae38b2ae16f709c0193e1b4340bde26ef3e2687d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b04578b74f2d3755548fe9e829e3b2a6c6f966a1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bbc68ba258a4eb0a2ca3b3a105550801aa8b00b0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/de6cc6ec7932bc530f2bb92005dac9123d50659c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e1c9f9446d3eaae323f1689f9e5de3b1ad6e47ec"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f487b5788f15c6c32a219ed1480d25c93fc18d30"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

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