CVE-2021-46965

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2021-46965", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-27T18:42:55.942Z", "datePublished": "2024-02-27T18:47:03.022Z", "dateUpdated": "2026-05-11T13:45:21.294Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:45:21.294Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: physmap: physmap-bt1-rom: Fix unintentional stack access\n\nCast &data to (char *) in order to avoid unintentionally accessing\nthe stack.\n\nNotice that data is of type u32, so any increment to &data\nwill be in the order of 4-byte chunks, and this piece of code\nis actually intended to be a byte offset.\n\nAddresses-Coverity-ID: 1497765 (\"Out-of-bounds access\")"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mtd/maps/physmap-bt1-rom.c"], "versions": [{"version": "b3e79e7682e075326df8041b826b03453acacd0a", "lessThan": "34ec706bf0b7c4ca249a729c1bcb91f706c7a7be", "status": "affected", "versionType": "git"}, {"version": "b3e79e7682e075326df8041b826b03453acacd0a", "lessThan": "4e4ebb827bf09311469ffd9d0c14ed40ed9747aa", "status": "affected", "versionType": "git"}, {"version": "b3e79e7682e075326df8041b826b03453acacd0a", "lessThan": "4d786870e3262ec098a3b4ed10b895176bc66ecb", "status": "affected", "versionType": "git"}, {"version": "b3e79e7682e075326df8041b826b03453acacd0a", "lessThan": "683313993dbe1651c7aa00bb42a041d70e914925", "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/mtd/maps/physmap-bt1-rom.c"], "versions": [{"version": "5.10", "status": "affected"}, {"version": "0", "lessThan": "5.10", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.36", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.11.20", "lessThanOrEqual": "5.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.12.3", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.13", "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": "5.10", "versionEndExcluding": "5.10.36"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.11.20"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.12.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/34ec706bf0b7c4ca249a729c1bcb91f706c7a7be"}, {"url": "https://git.kernel.org/stable/c/4e4ebb827bf09311469ffd9d0c14ed40ed9747aa"}, {"url": "https://git.kernel.org/stable/c/4d786870e3262ec098a3b4ed10b895176bc66ecb"}, {"url": "https://git.kernel.org/stable/c/683313993dbe1651c7aa00bb42a041d70e914925"}], "title": "mtd: physmap: physmap-bt1-rom: Fix unintentional stack access", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-46965", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-02-27T19:38:51.925558Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:13:13.079Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:17:42.990Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/34ec706bf0b7c4ca249a729c1bcb91f706c7a7be", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4e4ebb827bf09311469ffd9d0c14ed40ed9747aa", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4d786870e3262ec098a3b4ed10b895176bc66ecb", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/683313993dbe1651c7aa00bb42a041d70e914925", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/34ec706bf0b7c4ca249a729c1bcb91f706c7a7be", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4e4ebb827bf09311469ffd9d0c14ed40ed9747aa", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/4d786870e3262ec098a3b4ed10b895176bc66ecb", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/683313993dbe1651c7aa00bb42a041d70e914925", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:17:42.990Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-46965", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-02-27T19:38:51.925558Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-05-23T19:01:13.480Z"}, "title": "CISA ADP Vulnrichment"}], "cna": {"title": "mtd: physmap: physmap-bt1-rom: Fix unintentional stack access", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "b3e79e7682e075326df8041b826b03453acacd0a", "lessThan": "34ec706bf0b7c4ca249a729c1bcb91f706c7a7be", "versionType": "git"}, {"status": "affected", "version": "b3e79e7682e075326df8041b826b03453acacd0a", "lessThan": "4e4ebb827bf09311469ffd9d0c14ed40ed9747aa", "versionType": "git"}, {"status": "affected", "version": "b3e79e7682e075326df8041b826b03453acacd0a", "lessThan": "4d786870e3262ec098a3b4ed10b895176bc66ecb", "versionType": "git"}, {"status": "affected", "version": "b3e79e7682e075326df8041b826b03453acacd0a", "lessThan": "683313993dbe1651c7aa00bb42a041d70e914925", "versionType": "git"}], "programFiles": ["drivers/mtd/maps/physmap-bt1-rom.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"status": "unaffected", "version": "0", "lessThan": "5.10", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.36", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.11.20", "versionType": "semver", "lessThanOrEqual": "5.11.*"}, {"status": "unaffected", "version": "5.12.3", "versionType": "semver", "lessThanOrEqual": "5.12.*"}, {"status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/mtd/maps/physmap-bt1-rom.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/34ec706bf0b7c4ca249a729c1bcb91f706c7a7be"}, {"url": "https://git.kernel.org/stable/c/4e4ebb827bf09311469ffd9d0c14ed40ed9747aa"}, {"url": "https://git.kernel.org/stable/c/4d786870e3262ec098a3b4ed10b895176bc66ecb"}, {"url": "https://git.kernel.org/stable/c/683313993dbe1651c7aa00bb42a041d70e914925"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: physmap: physmap-bt1-rom: Fix unintentional stack access\n\nCast &data to (char *) in order to avoid unintentionally accessing\nthe stack.\n\nNotice that data is of type u32, so any increment to &data\nwill be in the order of 4-byte chunks, and this piece of code\nis actually intended to be a byte offset.\n\nAddresses-Coverity-ID: 1497765 (\"Out-of-bounds access\")"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.36", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.11.20", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.12.3", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.13", "versionStartIncluding": "5.10"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:45:21.294Z"}}}, "cveMetadata": {"cveId": "CVE-2021-46965", "state": "PUBLISHED", "dateUpdated": "2026-05-11T13:45:21.294Z", "dateReserved": "2024-02-27T18:42:55.942Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-02-27T18:47:03.022Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/mtd/maps/physmap-bt1-rom.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "34ec706bf0b7c4ca249a729c1bcb91f706c7a7be", "status": "affected", "version": "b3e79e7682e075326df8041b826b03453acacd0a", "versionType": "git"}, {"lessThan": "4e4ebb827bf09311469ffd9d0c14ed40ed9747aa", "status": "affected", "version": "b3e79e7682e075326df8041b826b03453acacd0a", "versionType": "git"}, {"lessThan": "4d786870e3262ec098a3b4ed10b895176bc66ecb", "status": "affected", "version": "b3e79e7682e075326df8041b826b03453acacd0a", "versionType": "git"}, {"lessThan": "683313993dbe1651c7aa00bb42a041d70e914925", "status": "affected", "version": "b3e79e7682e075326df8041b826b03453acacd0a", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/mtd/maps/physmap-bt1-rom.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"lessThan": "5.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.36", "versionType": "semver"}, {"lessThanOrEqual": "5.11.*", "status": "unaffected", "version": "5.11.20", "versionType": "semver"}, {"lessThanOrEqual": "5.12.*", "status": "unaffected", "version": "5.12.3", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A3C0C655-F217-444C-9131-45D82FAF3CFF", "versionEndExcluding": "5.10.36", "versionStartIncluding": "5.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "EEC03413-9760-46D4-AC1D-EB084A1D4111", "versionEndExcluding": "5.11.20", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F9D6B2DE-7E4A-4B3B-9AEE-3A2C5F23DA32", "versionEndExcluding": "5.12.3", "versionStartIncluding": "5.12", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: physmap: physmap-bt1-rom: Fix unintentional stack access\n\nCast &data to (char *) in order to avoid unintentionally accessing\nthe stack.\n\nNotice that data is of type u32, so any increment to &data\nwill be in the order of 4-byte chunks, and this piece of code\nis actually intended to be a byte offset.\n\nAddresses-Coverity-ID: 1497765 (\"Out-of-bounds access\")"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mtd: physmap: physmap-bt1-rom: corrige el acceso involuntario a la pila. Transmite &data a (char *) para evitar el acceso involuntario a la pila. Tenga en cuenta que los datos son de tipo u32, por lo que cualquier incremento en &data ser\u00e1 del orden de fragmentos de 4 bytes, y este fragmento de c\u00f3digo en realidad est\u00e1 destinado a ser un desplazamiento de bytes. Direcciones-Coverity-ID: 1497765 (\"Acceso fuera de l\u00edmites\")"}], "id": "CVE-2021-46965", "lastModified": "2026-06-17T04:16:00.683", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-46965", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-02-27T19:38:51.925558Z", "version": "2.0.3"}}]}, "published": "2024-02-27T19:04:07.087", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/34ec706bf0b7c4ca249a729c1bcb91f706c7a7be"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4d786870e3262ec098a3b4ed10b895176bc66ecb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4e4ebb827bf09311469ffd9d0c14ed40ed9747aa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/683313993dbe1651c7aa00bb42a041d70e914925"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/34ec706bf0b7c4ca249a729c1bcb91f706c7a7be"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4d786870e3262ec098a3b4ed10b895176bc66ecb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4e4ebb827bf09311469ffd9d0c14ed40ed9747aa"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/683313993dbe1651c7aa00bb42a041d70e914925"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: mtd: physmap: physmap-bt1-rom: Fix unintentional stack access", "id": "2266812", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2266812"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmtd: physmap: physmap-bt1-rom: Fix unintentional stack access\nCast &data to (char *) in order to avoid unintentionally accessing\nthe stack.\nNotice that data is of type u32, so any increment to &data\nwill be in the order of 4-byte chunks, and this piece of code\nis actually intended to be a byte offset.\nAddresses-Coverity-ID: 1497765 (\"Out-of-bounds access\")"], "name": "CVE-2021-46965", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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"}], "public_date": "2024-02-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-46965\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-46965\nhttps://lore.kernel.org/linux-cve-announce/2024022719-CVE-2021-46965-3b74@gregkh/T/#u"], "statement": "No Red Hat Products are affected by this vulnerability.", "threat_severity": "Low"}

{}