CVE-2024-41056

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No remote or adjacent-bus peer data reaches this parser.\nAC:L - The attacker authors the entire file, so simply omitting the NUL terminator and keeping every byte to EOF non-zero makes `strlen()` deterministically run off the end of the `vmalloc()`'d firmware buffer \u2014 no race, timing window, or memory-layout luck is involved, and the parse can be re-triggered on demand through the preload control.\nPR:L - The parse is triggered by any unprivileged local user with `/dev/snd` access (`wm_adsp2_preloader_put()` and normal playback/DAPM power-up perform no capability check), and the blob is not always root-exclusive in practice \u2014 firmware-staging/update agents, bind-mounts over `/lib/firmware/updates`, and delegated fallback-loader setups can place it within reach of a low-privileged account; choosing the higher-severity option between L and H.\nUI:N - Once the crafted wmfw is in place it is fetched and parsed automatically at driver probe or first audio stream, and the attacker can force the load from their own process via the DSP preloader; no victim action is required.\nS:U - The over-read and its consequences stay within the kernel's own security authority (the cs_dsp parser and the codec it drives); no hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - `strlen()` on an unterminated 256-byte array performs an unbounded out-of-bounds read that first traverses the un-zeroed tail of the final `vmalloc()` page \u2014 stale kernel page contents \u2014 and those bytes are echoed to the kernel log through the `cs_dsp_dbg(\"Algorithm name: %.*s\")`/`(\"Coefficient name: %.*s\")` prints, so the disclosure is neither bounded to a few bytes nor confined to the driver.\nI:L - The out-of-bounds-derived `name_len` is propagated as `subname_len` into `cs_dsp_create_control()`, where it decides whether an existing control is reused or a new one is added, leaving driver control state inconsistent with the file; this is bounded, attacker-influenced modification with no arbitrary-write primitive, since the V1 path does not copy the name (`fw_ver >= 2` gate).\nA:H - With no NUL byte before EOF the scan walks past the end of the `vmalloc()`'d firmware buffer into the guard page, producing an unhandled page fault/oops (and a KASAN out-of-bounds panic on hardened builds), which an unprivileged user can re-trigger at will through the DSP preload control."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/firmware/cirrus/cs_dsp.c"], "versions": [{"version": "f6bc909e7673c30abcbdb329e7d0aa2e83c103d7", "lessThan": "16d76857d6b5426f41b587d0bb925de3f25bfb21", "status": "affected", "versionType": "git"}, {"version": "f6bc909e7673c30abcbdb329e7d0aa2e83c103d7", "lessThan": "392cff2f86a25a4286ff3151c7739143c61c1781", "status": "affected", "versionType": "git"}, {"version": "f6bc909e7673c30abcbdb329e7d0aa2e83c103d7", 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no victim action is required.\nS:U - The over-read and its consequences stay within the kernel's own security authority (the cs_dsp parser and the codec it drives); no hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - `strlen()` on an unterminated 256-byte array performs an unbounded out-of-bounds read that first traverses the un-zeroed tail of the final `vmalloc()` page \u2014 stale kernel page contents \u2014 and those bytes are echoed to the kernel log through the `cs_dsp_dbg(\"Algorithm name: %.*s\")`/`(\"Coefficient name: %.*s\")` prints, so the disclosure is neither bounded to a few bytes nor confined to the driver.\nI:L - The out-of-bounds-derived `name_len` is propagated as `subname_len` into `cs_dsp_create_control()`, where it decides whether an existing control is reused or a new one is added, leaving driver control state inconsistent with the file; this is bounded, attacker-influenced modification with no arbitrary-write primitive, since the V1 path does not copy the name (`fw_ver >= 2` gate).\nA:H - With no NUL byte before EOF the scan walks past the end of the `vmalloc()`'d firmware buffer into the guard page, producing an unhandled page fault/oops (and a KASAN out-of-bounds panic on hardened builds), which an unprivileged user can re-trigger at will through the DSP preload control."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "f6bc909e7673c30abcbdb329e7d0aa2e83c103d7", "lessThan": "16d76857d6b5426f41b587d0bb925de3f25bfb21", "versionType": "git"}, {"status": "affected", "version": "f6bc909e7673c30abcbdb329e7d0aa2e83c103d7", "lessThan": "392cff2f86a25a4286ff3151c7739143c61c1781", "versionType": "git"}, {"status": "affected", "version": "f6bc909e7673c30abcbdb329e7d0aa2e83c103d7", "lessThan": "53a9f8cdbf35a682e9894e1a606f4640e5359185", "versionType": "git"}, {"status": "affected", "version": "f6bc909e7673c30abcbdb329e7d0aa2e83c103d7", "lessThan": "680e126ec0400f6daecf0510c5bb97a55779ff03", "versionType": "git"}], "programFiles": ["drivers/firmware/cirrus/cs_dsp.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.16"}, {"status": "unaffected", "version": "0", "lessThan": "5.16", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.100", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.41", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.9.10", "versionType": "semver", "lessThanOrEqual": "6.9.*"}, {"status": "unaffected", "version": "6.10", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/firmware/cirrus/cs_dsp.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/16d76857d6b5426f41b587d0bb925de3f25bfb21"}, {"url": "https://git.kernel.org/stable/c/392cff2f86a25a4286ff3151c7739143c61c1781"}, {"url": "https://git.kernel.org/stable/c/53a9f8cdbf35a682e9894e1a606f4640e5359185"}, {"url": "https://git.kernel.org/stable/c/680e126ec0400f6daecf0510c5bb97a55779ff03"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: cs_dsp: Use strnlen() on name fields in V1 wmfw files\n\nUse strnlen() instead of strlen() on the algorithm and coefficient name\nstring arrays in V1 wmfw files.\n\nIn V1 wmfw files the name is a NUL-terminated string in a fixed-size\narray. cs_dsp should protect against overrunning the array if the NUL\nterminator is missing."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.100", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.41", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.9.10", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.10", "versionStartIncluding": "5.16"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:35:02.501Z"}}}, "cveMetadata": {"cveId": "CVE-2024-41056", "state": "PUBLISHED", "dateUpdated": "2026-08-05T11:35:02.501Z", "dateReserved": "2024-07-12T12:17:45.627Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-07-29T14:33:27.453Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/firmware/cirrus/cs_dsp.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "16d76857d6b5426f41b587d0bb925de3f25bfb21", "status": "affected", "version": "f6bc909e7673c30abcbdb329e7d0aa2e83c103d7", "versionType": "git"}, {"lessThan": "392cff2f86a25a4286ff3151c7739143c61c1781", "status": "affected", "version": "f6bc909e7673c30abcbdb329e7d0aa2e83c103d7", "versionType": "git"}, {"lessThan": "53a9f8cdbf35a682e9894e1a606f4640e5359185", "status": "affected", "version": "f6bc909e7673c30abcbdb329e7d0aa2e83c103d7", "versionType": "git"}, {"lessThan": "680e126ec0400f6daecf0510c5bb97a55779ff03", "status": "affected", "version": "f6bc909e7673c30abcbdb329e7d0aa2e83c103d7", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/firmware/cirrus/cs_dsp.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.16"}, {"lessThan": "5.16", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.100", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.41", "versionType": "semver"}, {"lessThanOrEqual": "6.9.*", "status": "unaffected", "version": "6.9.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.10", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "100CDF74-4DB5-4FC6-A54B-BDBDB0C27137", "versionEndExcluding": "6.1.100", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "96AC42B8-D66D-4AC5-B466-E9BA7910FA29", "versionEndExcluding": "6.6.41", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "AB2E8DEC-CFD5-4C2B-981D-E7E45A36C352", "versionEndExcluding": "6.9.10", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*", "matchCriteriaId": "2EBB4392-5FA6-4DA9-9772-8F9C750109FA", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*", "matchCriteriaId": "331C2F14-12C7-45D5-893D-8C52EE38EA10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*", "matchCriteriaId": "3173713D-909A-4DD3-9DD4-1E171EB057EE", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:*", "matchCriteriaId": "79F18AFA-40F7-43F0-BA30-7BDB65F918B9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc5:*:*:*:*:*:*", "matchCriteriaId": "BD973AA4-A789-49BD-8D57-B2846935D3C7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc6:*:*:*:*:*:*", "matchCriteriaId": "8F3E9E0C-AC3E-4967-AF80-6483E8AB0078", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc7:*:*:*:*:*:*", "matchCriteriaId": "11AF4CB9-F697-4EA4-8903-8F9417EFDA8E", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: cs_dsp: Use strnlen() on name fields in V1 wmfw files\n\nUse strnlen() instead of strlen() on the algorithm and coefficient name\nstring arrays in V1 wmfw files.\n\nIn V1 wmfw files the name is a NUL-terminated string in a fixed-size\narray. cs_dsp should protect against overrunning the array if the NUL\nterminator is missing."}, {"lang": "es", "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: firmware: cs_dsp: use strnlen() en los campos de nombre en archivos wmfw V1. Use strnlen() en lugar de strlen() en las matrices de cadenas de nombres de algoritmos y coeficientes en archivos wmfw V1. En los archivos wmfw V1, el nombre es una cadena terminada en NUL en una matriz de tama\u00f1o fijo. cs_dsp deber\u00eda proteger contra el desbordamiento de la matriz si falta el terminador NUL."}], "id": "CVE-2024-41056", "lastModified": "2026-08-04T11:19:23.653", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.5, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-41056", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T16:22:25.022416Z", "version": "2.0.3"}}]}, "published": "2024-07-29T15:15:13.703", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/16d76857d6b5426f41b587d0bb925de3f25bfb21"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/392cff2f86a25a4286ff3151c7739143c61c1781"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/53a9f8cdbf35a682e9894e1a606f4640e5359185"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/680e126ec0400f6daecf0510c5bb97a55779ff03"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/16d76857d6b5426f41b587d0bb925de3f25bfb21"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/392cff2f86a25a4286ff3151c7739143c61c1781"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/53a9f8cdbf35a682e9894e1a606f4640e5359185"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/680e126ec0400f6daecf0510c5bb97a55779ff03"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2024:7001", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-553.22.1.rt7.363.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-09-24T00:00:00Z"}, {"advisory": "RHSA-2024:7000", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-553.22.1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-09-24T00:00:00Z"}, {"advisory": "RHSA-2024:9315", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}, {"advisory": "RHSA-2024:9315", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}, {"advisory": "RHSA-2024:8157", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "kernel-0:5.14.0-284.88.1.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-10-16T00:00:00Z"}, {"advisory": "RHSA-2024:8158", "cpe": "cpe:/a:redhat:rhel_eus:9.2::nfv", "package": "kernel-rt-0:5.14.0-284.88.1.rt14.373.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-10-16T00:00:00Z"}, {"advisory": "RHSA-2024:10771", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "kernel-0:5.14.0-427.47.1.el9_4", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2024-12-04T00:00:00Z"}], "bugzilla": {"description": "kernel: firmware: cs_dsp: Use strnlen() on name fields in V1 wmfw files", "id": "2300430", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2300430"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.2", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H", "status": "verified"}, "cwe": "CWE-787", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nfirmware: cs_dsp: Use strnlen() on name fields in V1 wmfw files\nUse strnlen() instead of strlen() on the algorithm and coefficient name\nstring arrays in V1 wmfw files.\nIn V1 wmfw files the name is a NUL-terminated string in a fixed-size\narray. cs_dsp should protect against overrunning the array if the NUL\nterminator is missing.", "A buffer overrun flaw exists in the Linux kernel when the strlen function is used on name fields in V1 wmfw files. This issue results in a loss of system availability."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2024-41056", "package_state": [{"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:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-07-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-41056\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-41056\nhttps://lore.kernel.org/linux-cve-announce/2024072930-CVE-2024-41056-c324@gregkh/T"], "statement": "Within regulated environments, a combination of the following controls acts as a significant barrier to successfully exploiting a CWE-787: Out-of-bounds Write vulnerability and downgrades the severity of this particular CVE from Moderate to Low.\nThe platform enforces hardening guidelines to apply the most restrictive settings necessary for operational requirements. Baseline configurations and system controls ensure secure software settings, while least functionality reduces the attack surface by disabling unauthorized services and ports. The environment employs IPS/IDS and antimalware solutions to detect and prevent malicious code exploiting out-of-bounds write vulnerabilities, using mechanisms such as file integrity monitoring and patch management. Robust input validation and error handling ensure all user inputs are thoroughly validated, preventing instability, data exposure, or privilege escalation. \nFinally, the platform uses memory protection mechanisms such as Data Execution Prevention (DEP) and Address Space Layout Randomization (ASLR) to strengthen resilience against out-of-bounds write exploits.", "threat_severity": "Moderate"}

{}