CVE-2023-53184

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no conditions outside attacker control are required.\nPR:L - PR_SVE_SET_VL and PR_SME_SET_VL are available to any unprivileged local user with no capability checks; only system_supports_sve()/sme() and non-compat task checks apply.\nUI:N - The attacker triggers the vulnerability entirely through their own syscalls and SVE/SME register use; no action by another user is required.\nS:U - Impact is confined to the host kernel privilege boundary (local privilege escalation / memory corruption), with no VM-escape or other cross-authority boundary crossed.\nC:H - The undersized sve_state buffer leads to a kernel heap out-of-bounds write (and subsequent corrupted-state reads), which can be leveraged for arbitrary kernel memory disclosure.\nI:H - Context save of attacker-controlled SVE register state into an undersized heap buffer is a controllable kernel heap overflow, enabling arbitrary write and control-flow hijacking.\nA:H - Use of the undersized buffer causes kernel memory corruption that can oops/panic the kernel, as observed after the buggy reallocation landed in mainline."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/arm64/kernel/fpsimd.c"], "versions": [{"version": "aa5cf8bd1318b6e7d500668b318c07a71cde783b", "lessThan": "356e711640aea6ed145da9407499388b45264cb4", "status": "affected", "versionType": "git"}, {"version": "292f0453b0d021bb1d3f64648bfdfca093512214", "lessThan": "807ada0e4aa3c9090c66009a99fa530c462012c9", "status": "affected", "versionType": "git"}, {"version": "d4d5be94a87872421ea2569044092535aff0b886", "lessThan": "05d881b85b48c7ac6a7c92ce00aa916c4a84d052", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/arm64/kernel/fpsimd.c"], "versions": [{"version": "6.1.42", "lessThan": "6.1.43", "status": "affected", "versionType": "semver"}, {"version": "6.4.7", "lessThan": "6.4.8", "status": "affected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.42", "versionEndExcluding": "6.1.43"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4.7", "versionEndExcluding": "6.4.8"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/356e711640aea6ed145da9407499388b45264cb4"}, {"url": "https://git.kernel.org/stable/c/807ada0e4aa3c9090c66009a99fa530c462012c9"}, {"url": "https://git.kernel.org/stable/c/05d881b85b48c7ac6a7c92ce00aa916c4a84d052"}], "title": "arm64/sme: Set new vector length before reallocating", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-53184", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-15T21:34:15.104119Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T21:41:27.551Z"}}]}}

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{"bugzilla": {"description": "kernel: arm64/sme: Set new vector length before reallocating", "id": "2395376", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395376"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2023-53184", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not 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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-09-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53184\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53184\nhttps://lore.kernel.org/linux-cve-announce/2025091557-CVE-2023-53184-3b7a@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-09-17T10:08:23.809900+00:00", "updated": "2025-09-17T10:08:23.809973+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}