CVE-2022-49029

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removeing it from driver_data.bmc_data before free()."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The ibmpex driver registers via an IPMI SMI watcher callback and talks to the local BMC over the IPMI system interface; an attacker needs local access on an affected IBM System X host, not network or adjacent-segment reachability.\nAC:L - Once ibmpex_find_sensors() fails after the list_add, the stale list entry is deterministic and the subsequent UAF on list traversal requires no race the attacker cannot influence; UAF bugs are scored AC:L unless an uncontrolled race is required.\nPR:L - On multi-user/datacenter IBM System X deployments the vulnerable driver can be present for a local unprivileged user, and when choosing between PR:L and PR:H the higher-severity option is required; this matches the worst reasonable local attacker model.\nUI:N - Exploitation does not require a victim to perform any action such as mounting a filesystem or opening a malicious file; the UAF follows from driver registration failure and later list traversal.\nS:U - This is a standard in-kernel use-after-free within the host kernel's authority and does not cross a VM, IOMMU, or other security boundary.\nC:H - Use-after-free of the ibmpex_bmc_data object on a traversable list enables heap reuse and arbitrary read primitives under standard kernel UAF exploitation.\nI:H - The same UAF enables heap spraying and control of the freed object's contents, yielding write/control-flow hijack primitives consistent with kernel memory-corruption impact.\nA:H - Traversing the dangling list entry can crash or oops the kernel (and UAF bugs are scored A:H even when not fully exploited for code execution)."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": 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primitives under standard kernel UAF exploitation.\nI:H - The same UAF enables heap spraying and control of the freed object's contents, yielding write/control-flow hijack primitives consistent with kernel memory-corruption impact.\nA:H - Traversing the dangling list entry can crash or oops the kernel (and UAF bugs are scored A:H even when not fully exploited for code execution)."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab", "lessThan": "f2a13196ad41c6c2ab058279dffe6c97292e753a", "versionType": "git"}, {"status": "affected", "version": "57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab", "lessThan": "798198273bf86673b970b51acdb35e57f42b3fcb", "versionType": "git"}, {"status": "affected", "version": "57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab", "lessThan": "24b9633f7db7f4809be7053df1d2e117e7c2de10", "versionType": 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"cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:*", "matchCriteriaId": "3FFFB0B3-930D-408A-91E2-BAE0C2715D80", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:*", "matchCriteriaId": "8535320E-A0DB-4277-800E-D0CE5BBA59E8", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails\n\nSmatch report warning as follows:\n\ndrivers/hwmon/ibmpex.c:509 ibmpex_register_bmc() warn:\n '&data->list' not removed from list\n\nIf ibmpex_find_sensors() fails in ibmpex_register_bmc(), data will\nbe freed, but data->list will not be removed from driver_data.bmc_data,\nthen list traversal may cause UAF.\n\nFix by removeing it from driver_data.bmc_data before free()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: hwmon: (ibmpex) Se corrige un posible UAF cuando fallo ibmpex_register_bmc() Advertencia de informe de Smatch de la siguiente manera: drivers/hwmon/ibmpex.c:509 ibmpex_register_bmc() warn: '&data->list' no se elimin\u00f3 de la lista Si ibmpex_find_sensors() fallo en ibmpex_register_bmc(), se liberar\u00e1n los datos, pero data->list no se eliminar\u00e1 de driver_data.bmc_data, entonces el recorrido de la lista puede causar UAF. Se soluciona elimin\u00e1ndolo de driver_data.bmc_data antes de free()."}], "id": "CVE-2022-49029", "lastModified": "2026-08-04T10:17:31.873", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-49029", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-10-22T13:11:29.003244Z", "version": "2.0.3"}}]}, "published": "2024-10-21T20:15:13.690", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/24b9633f7db7f4809be7053df1d2e117e7c2de10"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/45f6e81863747c0d7bc6a95ec51129900e71467a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/798198273bf86673b970b51acdb35e57f42b3fcb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7b2b67fe1339389e0bf3c37c7a677a004ac0e4e3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/90907cd4d11351ff76c9a447bcb5db0e264c47cd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e2a87785aab0dac190ac89be6a9ba955e2c634f2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e65cfd1f9cd27d9c27ee5cb88128a9f79f25d863"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f2a13196ad41c6c2ab058279dffe6c97292e753a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2025:6966", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}, {"advisory": "RHSA-2025:6966", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}], "bugzilla": {"description": "kernel: hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails", "id": "2320693", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320693"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nhwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails\nSmatch report warning as follows:\ndrivers/hwmon/ibmpex.c:509 ibmpex_register_bmc() warn:\n'&data->list' not removed from list\nIf ibmpex_find_sensors() fails in ibmpex_register_bmc(), data will\nbe freed, but data->list will not be removed from driver_data.bmc_data,\nthen list traversal may cause UAF.\nFix by removeing it from driver_data.bmc_data before free()."], "name": "CVE-2022-49029", "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": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49029\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49029\nhttps://lore.kernel.org/linux-cve-announce/2024102155-CVE-2022-49029-0ffd@gregkh/T"], "statement": "This issue is considered to be a moderate impact flaw, as the exploitation for this will need an ADMIN (or ROOT) privilege (PR:H).", "threat_severity": "Moderate"}

{}