{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49530", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.588Z", "datePublished": "2025-02-26T02:13:51.057Z", "dateUpdated": "2026-08-05T08:55:26.829Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:55:26.829Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/pm: fix double free in si_parse_power_table()\n\nIn function si_parse_power_table(), array adev->pm.dpm.ps and its member\nis allocated. If the allocation of each member fails, the array itself\nis freed and returned with an error code. However, the array is later\nfreed again in si_dpm_fini() function which is called when the function\nreturns an error.\n\nThis leads to potential double free of the array adev->pm.dpm.ps, as\nwell as leak of its array members, since the members are not freed in\nthe allocation function and the array is not nulled when freed.\nIn addition adev->pm.dpm.num_ps, which keeps track of the allocated\narray member, is not updated until the member allocation is\nsuccessfully finished, this could also lead to either use after free,\nor uninitialized variable access in si_dpm_fini().\n\nFix this by postponing the free of the array until si_dpm_fini() and\nincrement adev->pm.dpm.num_ps everytime the array member is allocated." } ], "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 reached only during local amdgpu PCI probe (amdgpu_device_ip_init → si_dpm_sw_init → si_dpm_init → si_parse_power_table) on Southern Islands GPUs; suspend/resume and GPU reset use hw callbacks and do not re-parse the power table, and no network path exists.\nAC:L - A local attacker can induce system-wide memory pressure so a mid-loop GFP_KERNEL kzalloc of struct si_ps fails; once that happens, the premature kfree of adev->pm.dpm.ps followed by si_dpm_fini’s second free is deterministic with no uncontrolled race.\nPR:L - Scored from an unprivileged local account on a shared system with an affected SI GPU under the higher-severity interpretation, consistent with sibling double-frees CVE-2023-52691 and CVE-2023-52469; real root is not required for the attacker’s privileges prior to exploitation.\nUI:N - No separate victim action such as opening a file or mounting a device is required; the flaw is triggered by driver initialization under attacker-influenced memory conditions.\nS:U - Impact remains within the host kernel’s security authority as standard kernel heap corruption / privilege escalation, with no VM escape, IOMMU bypass, or other security-boundary crossing.\nC:H - Double-free of the adev->pm.dpm.ps heap object (with a dangling non-NULL pointer) is UAF-class memory corruption; reclaiming the freed slab enables arbitrary kernel read primitives.\nI:H - Double-free freelist corruption in the kernel allocator can be abused for overlapping objects and arbitrary write / control-flow hijacking, enabling full integrity compromise and privilege escalation.\nA:H - The double-free reliably corrupts kernel heap state and can oops/panic the kernel even when not fully exploited for code execution, which is Availability High under kernel CVSS guidance." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c" ], "versions": [ { "version": "841686df9f7d2942cfd94d024b8591fa3f74ef7c", "lessThan": "2615464854505188f909d0c07c37a6623693b5c7", "status": "affected", "versionType": "git" }, { "version": "841686df9f7d2942cfd94d024b8591fa3f74ef7c", "lessThan": "6c5bdaa1325be7f04b79ea992ab216739192d342", "status": "affected", "versionType": "git" }, { "version": "841686df9f7d2942cfd94d024b8591fa3f74ef7c", "lessThan": "c0e811c4ccf3b42705976285e3a94cc82dea7300", "status": "affected", "versionType": "git" }, { "version": "841686df9f7d2942cfd94d024b8591fa3f74ef7c", "lessThan": "af832028af6f44c6c45645757079c4ed6884ade5", "status": "affected", "versionType": "git" }, { "version": "841686df9f7d2942cfd94d024b8591fa3f74ef7c", "lessThan": "ca1ce206894dd976275c78ee38dbc19873f22de9", "status": "affected", "versionType": "git" }, { "version": "841686df9f7d2942cfd94d024b8591fa3f74ef7c", "lessThan": "a5ce7051db044290b1a95045ff03c249005a3aa4", "status": "affected", "versionType": "git" }, { "version": "841686df9f7d2942cfd94d024b8591fa3f74ef7c", "lessThan": "fd2eff8b9dcbe469c3b7bbbc7083ab5ed94de07b", "status": "affected", "versionType": "git" }, { "version": "841686df9f7d2942cfd94d024b8591fa3f74ef7c", "lessThan": "43eb9b667b95f2a31c63e8949b0d2161b9be59c3", "status": "affected", "versionType": "git" }, { "version": "841686df9f7d2942cfd94d024b8591fa3f74ef7c", "lessThan": "f3fa2becf2fc25b6ac7cf8d8b1a2e4a86b3b72bd", "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/gpu/drm/amd/pm/legacy-dpm/si_dpm.c" ], "versions": [ { "version": "4.9", "status": "affected" }, { "version": "0", "lessThan": "4.9", "status": "unaffected", "versionType": "semver" }, { "version": "4.9.318", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.283", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.247", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.198", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.121", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.46", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.17.14", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.18.3", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.19", "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": "4.9", "versionEndExcluding": "4.9.318" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "4.14.283" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "4.19.247" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "5.4.198" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "5.10.121" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "5.15.46" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "5.17.14" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "5.18.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "5.19" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/2615464854505188f909d0c07c37a6623693b5c7" }, { "url": "https://git.kernel.org/stable/c/6c5bdaa1325be7f04b79ea992ab216739192d342" }, { "url": "https://git.kernel.org/stable/c/c0e811c4ccf3b42705976285e3a94cc82dea7300" }, { "url": "https://git.kernel.org/stable/c/af832028af6f44c6c45645757079c4ed6884ade5" }, { "url": "https://git.kernel.org/stable/c/ca1ce206894dd976275c78ee38dbc19873f22de9" }, { "url": "https://git.kernel.org/stable/c/a5ce7051db044290b1a95045ff03c249005a3aa4" }, { "url": "https://git.kernel.org/stable/c/fd2eff8b9dcbe469c3b7bbbc7083ab5ed94de07b" }, { "url": "https://git.kernel.org/stable/c/43eb9b667b95f2a31c63e8949b0d2161b9be59c3" }, { "url": "https://git.kernel.org/stable/c/f3fa2becf2fc25b6ac7cf8d8b1a2e4a86b3b72bd" } ], "title": "drm/amd/pm: fix double free in si_parse_power_table()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2022-49530", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2025-10-01T19:37:58.672887Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-415", "description": "CWE-415 Double Free" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:46:41.373Z" } } ] } }