CVE-2024-35848

{"dataType": "CVE_RECORD", "cveMetadata": {"cveId": "CVE-2024-35848", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-17T13:50:33.105Z", "datePublished": "2024-05-17T14:47:26.828Z", "dateUpdated": "2026-08-05T11:30:17.634Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:30:17.634Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\neeprom: at24: fix memory corruption race condition\n\nIf the eeprom is not accessible, an nvmem device will be registered, the\nread will fail, and the device will be torn down. If another driver\naccesses the nvmem device after the teardown, it will reference\ninvalid memory.\n\nMove the failure point before registering the nvmem device."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The dangling nvmem provider is driven through local interfaces \u2014 the world-readable `/sys/bus/nvmem/devices/*/nvmem` and compat `eeprom` binary attributes (0444 for `at24_data_spd`/`24c02_vaio` via AT24_FLAG_IRUGO) reached by read(2), plus in-kernel nvmem consumer paths. There is no network exposure, and the exploitation interface is a local syscall rather than physical manipulation.\nAC:H - Exploitation requires the EEPROM's one-byte probe read to fail (an I2C/hardware condition a local unprivileged attacker cannot induce) while an nvmem consumer holds a reference across the devres teardown. The consumer half is deterministic on affected platforms (e.g. the NVMEM_ADD notifier in cp500.c fires inside nvmem_register itself), but the hardware-failure half is outside attacker control.\nPR:L - SPD and VAIO at24 chip data clear `root_only`, giving the nvmem and compat eeprom sysfs attributes mode 0444, so any unprivileged local account can invoke the freed `at24_read()` path with no capabilities, namespace tricks, or group membership.\nUI:N - No victim action is needed; the attacker simply reads the sysfs attribute, or an in-kernel consumer touches the stale nvmem device on its own.\nS:U - The use-after-free occurs in kernel memory and its impact is confined to the kernel's own security authority \u2014 no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Reading the stale nvmem device dereferences a freed `at24_data`, and `at24_translate_offset()` indexes `client_regmaps[]` using an index bounded only by the freed `byte_len`, yielding out-of-bounds pointer fetches and regmap reads that return arbitrary reclaimed kernel memory into the user-visible read buffer.\nI:H - `at24_read()` calls `at24->read_post()` \u2014 a function pointer loaded from freed memory \u2014 and drives regmap op/lock tables out of a freed regmap, while `at24_write()` on a writable instance pushes attacker data through the same stale structures; heap grooming turns this into arbitrary write and control-flow hijack.\nA:H - Even without grooming, the use-after-free dereferences freed regmap and device pointers and locks a freed mutex, reliably producing an oops or panic, and the dangling nvmem device persists so the crash can be triggered repeatedly."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/misc/eeprom/at24.c"], "versions": [{"version": "b20eb4c1f0261eebe6e1b9221c0d6e4048837778", "lessThan": "c850f71fca09ea41800ed55905980063d17e01da", 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"https://git.kernel.org/stable/c/c43e5028f5a35331eb25017f5ff6cc21735005c6"}, {"url": "https://git.kernel.org/stable/c/2af84c46b9b8f2d6c0f88d09ee5c849ae1734676"}, {"url": "https://git.kernel.org/stable/c/6d8b56ec0c8f30d5657382f47344a32569f7a9bc"}, {"url": "https://git.kernel.org/stable/c/f42c97027fb75776e2e9358d16bf4a99aeb04cf2"}], "title": "eeprom: at24: fix memory corruption race condition", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-35848", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-05-17T17:15:51.983063Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:34:04.173Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": 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There is no network exposure, and the exploitation interface is a local syscall rather than physical manipulation.\nAC:H - Exploitation requires the EEPROM's one-byte probe read to fail (an I2C/hardware condition a local unprivileged attacker cannot induce) while an nvmem consumer holds a reference across the devres teardown. The consumer half is deterministic on affected platforms (e.g. the NVMEM_ADD notifier in cp500.c fires inside nvmem_register itself), but the hardware-failure half is outside attacker control.\nPR:L - SPD and VAIO at24 chip data clear `root_only`, giving the nvmem and compat eeprom sysfs attributes mode 0444, so any unprivileged local account can invoke the freed `at24_read()` path with no capabilities, namespace tricks, or group membership.\nUI:N - No victim action is needed; the attacker simply reads the sysfs attribute, or an in-kernel consumer touches the stale nvmem device on its own.\nS:U - The use-after-free occurs in kernel memory and its impact is confined to the kernel's own security authority \u2014 no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Reading the stale nvmem device dereferences a freed `at24_data`, and `at24_translate_offset()` indexes `client_regmaps[]` using an index bounded only by the freed `byte_len`, yielding out-of-bounds pointer fetches and regmap reads that return arbitrary reclaimed kernel memory into the user-visible read buffer.\nI:H - `at24_read()` calls `at24->read_post()` \u2014 a function pointer loaded from freed memory \u2014 and drives regmap op/lock tables out of a freed regmap, while `at24_write()` on a writable instance pushes attacker data through the same stale structures; heap grooming turns this into arbitrary write and control-flow hijack.\nA:H - Even without grooming, the use-after-free dereferences freed regmap and device pointers and locks a freed mutex, reliably producing an oops or panic, and the dangling nvmem device persists so the crash can be triggered repeatedly."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "b20eb4c1f0261eebe6e1b9221c0d6e4048837778", "lessThan": "c850f71fca09ea41800ed55905980063d17e01da", "versionType": "git"}, {"status": "affected", "version": "b20eb4c1f0261eebe6e1b9221c0d6e4048837778", "lessThan": "26d32bec4c6d255a03762f33c637bfa3718be15a", "versionType": "git"}, {"status": "affected", "version": "b20eb4c1f0261eebe6e1b9221c0d6e4048837778", "lessThan": "c43e5028f5a35331eb25017f5ff6cc21735005c6", "versionType": "git"}, {"status": "affected", "version": "b20eb4c1f0261eebe6e1b9221c0d6e4048837778", "lessThan": "2af84c46b9b8f2d6c0f88d09ee5c849ae1734676", "versionType": "git"}, {"status": "affected", "version": "b20eb4c1f0261eebe6e1b9221c0d6e4048837778", "lessThan": "6d8b56ec0c8f30d5657382f47344a32569f7a9bc", "versionType": "git"}, {"status": "affected", "version": "b20eb4c1f0261eebe6e1b9221c0d6e4048837778", "lessThan": "f42c97027fb75776e2e9358d16bf4a99aeb04cf2", "versionType": "git"}], "programFiles": ["drivers/misc/eeprom/at24.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.3"}, {"status": "unaffected", "version": "0", "lessThan": "5.3", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.217", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.159", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.91", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.31", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.8.9", "versionType": "semver", "lessThanOrEqual": "6.8.*"}, {"status": "unaffected", "version": "6.9", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/misc/eeprom/at24.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/c850f71fca09ea41800ed55905980063d17e01da"}, {"url": "https://git.kernel.org/stable/c/26d32bec4c6d255a03762f33c637bfa3718be15a"}, {"url": "https://git.kernel.org/stable/c/c43e5028f5a35331eb25017f5ff6cc21735005c6"}, {"url": "https://git.kernel.org/stable/c/2af84c46b9b8f2d6c0f88d09ee5c849ae1734676"}, {"url": "https://git.kernel.org/stable/c/6d8b56ec0c8f30d5657382f47344a32569f7a9bc"}, {"url": "https://git.kernel.org/stable/c/f42c97027fb75776e2e9358d16bf4a99aeb04cf2"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\neeprom: at24: fix memory corruption race condition\n\nIf the eeprom is not accessible, an nvmem device will be registered, the\nread will fail, and the device will be torn down. 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If another driver\naccesses the nvmem device after the teardown, it will reference\ninvalid memory.\n\nMove the failure point before registering the nvmem device."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: eeprom: at24: corrige la condici\u00f3n de ejecuci\u00f3n por corrupci\u00f3n de memoria. Si no se puede acceder a la eeprom, se registrar\u00e1 un dispositivo nvmem, la lectura fallar\u00e1 y el dispositivo se apagar\u00e1. Si otro controlador accede al dispositivo nvmem despu\u00e9s del desmontaje, har\u00e1 referencia a una memoria no v\u00e1lida. Mueva el punto de fallo antes de registrar el dispositivo nvmem."}], "id": "CVE-2024-35848", "lastModified": "2026-08-04T11:17:58.980", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-35848", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-05-17T17:15:51.983063Z", "version": "2.0.3"}}]}, "published": "2024-05-17T15:15:21.693", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/26d32bec4c6d255a03762f33c637bfa3718be15a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2af84c46b9b8f2d6c0f88d09ee5c849ae1734676"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6d8b56ec0c8f30d5657382f47344a32569f7a9bc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c43e5028f5a35331eb25017f5ff6cc21735005c6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c850f71fca09ea41800ed55905980063d17e01da"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f42c97027fb75776e2e9358d16bf4a99aeb04cf2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/26d32bec4c6d255a03762f33c637bfa3718be15a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2af84c46b9b8f2d6c0f88d09ee5c849ae1734676"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6d8b56ec0c8f30d5657382f47344a32569f7a9bc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c43e5028f5a35331eb25017f5ff6cc21735005c6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c850f71fca09ea41800ed55905980063d17e01da"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f42c97027fb75776e2e9358d16bf4a99aeb04cf2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2024:5363", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.31.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-08-15T00:00:00Z"}, {"advisory": "RHSA-2024:5363", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.31.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-08-15T00:00:00Z"}], "bugzilla": {"description": "kernel: eeprom: at24: fix memory corruption race condition", "id": "2281265", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2281265"}, "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": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\neeprom: at24: fix memory corruption race condition\nIf the eeprom is not accessible, an nvmem device will be registered, the\nread will fail, and the device will be torn down. If another driver\naccesses the nvmem device after the teardown, it will reference\ninvalid memory.\nMove the failure point before registering the nvmem device.", "CVE-2024-35848 is a vulnerability in the Linux kernel's EEPROM driver (at24) that can lead to memory corruption. The issue arises when an EEPROM device is inaccessible: the system registers an nvmem device, the read operation fails, and the device is subsequently torn down. If another driver attempts to access the nvmem device after this teardown, it may reference invalid memory, causing potential system instability. The problem has been resolved by adjusting the failure handling to occur before the nvmem device is registered, preventing access to invalid memory. Users should update their Linux kernel to a version that includes this fix to ensure system reliability."], "name": "CVE-2024-35848", "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": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-35848\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-35848\nhttps://lore.kernel.org/linux-cve-announce/2024051738-CVE-2024-35848-fc2b@gregkh/T"], "threat_severity": "Moderate"}

{}