{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49029", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-22T01:27:53.651Z", "datePublished": "2024-10-21T20:06:33.918Z", "dateUpdated": "2026-08-05T08:53:33.547Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:53:33.547Z" }, "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()." } ], "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": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/hwmon/ibmpex.c" ], "versions": [ { "version": "57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab", "lessThan": "f2a13196ad41c6c2ab058279dffe6c97292e753a", "status": "affected", "versionType": "git" }, { "version": "57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab", "lessThan": "798198273bf86673b970b51acdb35e57f42b3fcb", "status": "affected", "versionType": "git" }, { "version": "57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab", "lessThan": "24b9633f7db7f4809be7053df1d2e117e7c2de10", "status": "affected", "versionType": "git" }, { "version": "57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab", "lessThan": "7b2b67fe1339389e0bf3c37c7a677a004ac0e4e3", "status": "affected", "versionType": "git" }, { "version": "57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab", "lessThan": "90907cd4d11351ff76c9a447bcb5db0e264c47cd", "status": "affected", "versionType": "git" }, { "version": "57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab", "lessThan": "45f6e81863747c0d7bc6a95ec51129900e71467a", "status": "affected", "versionType": "git" }, { "version": "57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab", "lessThan": "e65cfd1f9cd27d9c27ee5cb88128a9f79f25d863", "status": "affected", "versionType": "git" }, { "version": "57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab", "lessThan": "e2a87785aab0dac190ac89be6a9ba955e2c634f2", "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/hwmon/ibmpex.c" ], "versions": [ { "version": "2.6.24", "status": "affected" }, { "version": "0", "lessThan": "2.6.24", "status": "unaffected", "versionType": "semver" }, { "version": "4.9.335", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.301", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.268", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.226", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.158", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.82", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0.12", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1", "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": "2.6.24", "versionEndExcluding": "4.9.335" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "4.14.301" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "4.19.268" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "5.4.226" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "5.10.158" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "5.15.82" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "6.0.12" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "6.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/f2a13196ad41c6c2ab058279dffe6c97292e753a" }, { "url": "https://git.kernel.org/stable/c/798198273bf86673b970b51acdb35e57f42b3fcb" }, { "url": "https://git.kernel.org/stable/c/24b9633f7db7f4809be7053df1d2e117e7c2de10" }, { "url": "https://git.kernel.org/stable/c/7b2b67fe1339389e0bf3c37c7a677a004ac0e4e3" }, { "url": "https://git.kernel.org/stable/c/90907cd4d11351ff76c9a447bcb5db0e264c47cd" }, { "url": "https://git.kernel.org/stable/c/45f6e81863747c0d7bc6a95ec51129900e71467a" }, { "url": "https://git.kernel.org/stable/c/e65cfd1f9cd27d9c27ee5cb88128a9f79f25d863" }, { "url": "https://git.kernel.org/stable/c/e2a87785aab0dac190ac89be6a9ba955e2c634f2" } ], "title": "hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2022-49029", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-10-22T13:11:29.003244Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-22T13:18:36.071Z" } } ] } }