{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-50087", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-06-18T10:57:27.410Z", "datePublished": "2025-06-18T11:02:28.079Z", "dateUpdated": "2026-08-05T08:57:21.727Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:57:21.727Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails\n\nWhen scpi probe fails, at any point, we need to ensure that the scpi_info\nis not set and will remain NULL until the probe succeeds. If it is not\ntaken care, then it could result use-after-free as the value is exported\nvia get_scpi_ops() and could refer to a memory allocated via devm_kzalloc()\nbut freed when the probe fails." } ], "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 bug is in the ARM SCPI platform firmware driver (mailbox/shared-memory to the on-SoC SCP), reached during local driver probe and consumer deferred probes (scpi-hwmon/clk/cpufreq/pm-domain), not via network or adjacent protocols.\nAC:L - Any probe failure after early assignment of global scpi_info (including common -EPROBE_DEFER when the mailbox is not ready, or SCP firmware/capability failure) deterministically leaves a dangling pointer that get_scpi_ops() consumers then use; the attacker does not need a hard-to-influence race.\nPR:L - The UAF is hit from in-kernel deferred probe of SCPI consumers without CAP_SYS_ADMIN/sysfs bind, so a normal local unprivileged user context on an affected ARM SCPI system is sufficient for the highest-severity exploitation model (heap spray against the freed scpi_drvinfo).\nUI:N - No victim action is required; probe failure and subsequent get_scpi_ops() use occur automatically during boot/deferred probing.\nS:U - Impact remains within the kernel’s security authority (local privilege escalation/DoS via kernel UAF); it does not cross a VM, IOMMU, or other separate security boundary.\nC:H - This is a use-after-free of scpi_drvinfo exported through get_scpi_ops(); with heap reuse the attacker can control the returned scpi_ops and adjacent state, enabling arbitrary kernel reads.\nI:H - UAF of the ops/channel state enables forged function pointers and writes through SCPI ops (clocks, DVFS, power, sensors), so integrity impact includes control-flow hijacking and arbitrary modification.\nA:H - The reported crash is a kernel oops/NULL instruction abort in scpi_hwmon_probe via the dangling scpi_info, and UAFs generally cause panics even when not fully exploited." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/firmware/arm_scpi.c" ], "versions": [ { "version": "8cb7cf56c9fe5412de238465b27ef35b4d2801aa", "lessThan": "5aa558232edc30468d1f35108826dd5b3ffe978f", "status": "affected", "versionType": "git" }, { "version": "8cb7cf56c9fe5412de238465b27ef35b4d2801aa", "lessThan": "18048cba444a7c41dbf42c180d6b46606fc24c51", "status": "affected", "versionType": "git" }, { "version": "8cb7cf56c9fe5412de238465b27ef35b4d2801aa", "lessThan": "08272646cd7c310642c39b7f54348fddd7987643", "status": "affected", "versionType": "git" }, { "version": "8cb7cf56c9fe5412de238465b27ef35b4d2801aa", "lessThan": "0c29e149b6bb498778ed8a1c9597b51acfba7856", "status": "affected", "versionType": "git" }, { "version": "8cb7cf56c9fe5412de238465b27ef35b4d2801aa", "lessThan": "87c4896d5dd7fd9927c814cf3c6289f41de3b562", "status": "affected", "versionType": "git" }, { "version": "8cb7cf56c9fe5412de238465b27ef35b4d2801aa", "lessThan": "4f2d7b46d6b53c07f44a4f8f8f4438888f0e9e87", "status": "affected", "versionType": "git" }, { "version": "8cb7cf56c9fe5412de238465b27ef35b4d2801aa", "lessThan": "689640efc0a2c4e07e6f88affe6d42cd40cc3f85", "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/firmware/arm_scpi.c" ], "versions": [ { "version": "4.4", "status": "affected" }, { "version": "0", "lessThan": "4.4", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.256", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.211", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.137", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.61", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.18.18", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.19.2", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0", "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": "4.4", "versionEndExcluding": "4.19.256" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "5.4.211" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "5.10.137" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "5.15.61" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "5.18.18" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "5.19.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "6.0" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/5aa558232edc30468d1f35108826dd5b3ffe978f" }, { "url": "https://git.kernel.org/stable/c/18048cba444a7c41dbf42c180d6b46606fc24c51" }, { "url": "https://git.kernel.org/stable/c/08272646cd7c310642c39b7f54348fddd7987643" }, { "url": "https://git.kernel.org/stable/c/0c29e149b6bb498778ed8a1c9597b51acfba7856" }, { "url": "https://git.kernel.org/stable/c/87c4896d5dd7fd9927c814cf3c6289f41de3b562" }, { "url": "https://git.kernel.org/stable/c/4f2d7b46d6b53c07f44a4f8f8f4438888f0e9e87" }, { "url": "https://git.kernel.org/stable/c/689640efc0a2c4e07e6f88affe6d42cd40cc3f85" } ], "title": "firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2022-50087", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2026-06-10T20:41:34.847637Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-11T18:44:13.909Z" } } ] } }