CVE-2022-48716

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Without this, its possible that we could corrupt\nstruct wcd938x_sdw_priv by accessing port_map array out of range\nwith channel id instead of port id."}], "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 by writing ALSA mixer controls (e.g. DSD_L/DSD_R Switch) via ioctl on /dev/snd/controlC*, a local device-file interface; it is not reachable from the network stack or remote protocols.\nAC:L - An attacker who can open the sound control device can reliably toggle the fixed DSD mixer controls; no race, non-deterministic state, or other condition outside attacker control is required.\nPR:L - snd_ctl_elem_write performs no capability check; access depends only on /dev/snd/controlC* permissions, typically granted to unprivileged audio-group users on affected Qualcomm devices (phones, Chromebooks, ThinkPad X13s), not real root.\nUI:N - The attacker triggers the OOB write directly by writing the mixer control; no separate victim action is required.\nS:U - This is standard in-kernel memory corruption of wcd938x_sdw_priv with impact confined to the host kernel's security authority, not a VM/IOMMU/sandbox boundary cross.\nC:H - The OOB write corrupts the adjacent ch_info pointer inside wcd938x_sdw_priv; subsequent use of that corrupted pointer enables kernel memory disclosure primitives, so confidentiality impact is High.\nI:H - Out-of-bounds write into port_config[port_num] (port 5 / DSD) overwrites trailing structure fields and yields kernel memory corruption exploitable for integrity compromise and control-flow hijacking.\nA:H - Dereferencing the corrupted ch_info pointer after the OOB write can oops/panic the kernel, causing a full availability loss."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": 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Without this, its possible that we could corrupt\nstruct wcd938x_sdw_priv by accessing port_map array out of range\nwith channel id instead of port id."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ASoC: c\u00f3decs: wcd938x: corrige el uso incorrecto del puerto Los controles del mezclador tienen la identificaci\u00f3n del canal en mezclador->reg, que no es la misma que la identificaci\u00f3n del puerto. La identificaci\u00f3n del puerto debe derivarse de la matriz chan_info. Entonces arregla esto. Sin esto, es posible que podamos da\u00f1ar la estructura wcd938x_sdw_priv accediendo a la matriz port_map fuera del rango con la identificaci\u00f3n del canal en lugar de la identificaci\u00f3n del puerto."}], "id": "CVE-2022-48716", "lastModified": "2026-08-04T10:17:17.110", "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": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-48716", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2024-06-25T13:56:06.745366Z", "version": "2.0.3"}}]}, "published": "2024-06-20T11:15:55.207", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9167f2712dc8c24964840a4d1e2ebf130e846b95"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aa7152f9f117b3e66b3c0d4158ca4c6d46ab229f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c5c1546a654f613e291a7c5d6f3660fc1eb6d0c7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9167f2712dc8c24964840a4d1e2ebf130e846b95"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aa7152f9f117b3e66b3c0d4158ca4c6d46ab229f"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c5c1546a654f613e291a7c5d6f3660fc1eb6d0c7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: ASoC: codecs: wcd938x: fix incorrect used of portid", "id": "2293286", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2293286"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-501", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nASoC: codecs: wcd938x: fix incorrect used of portid\nMixer controls have the channel id in mixer->reg, which is not same\nas port id. port id should be derived from chan_info array.\nSo fix this. Without this, its possible that we could corrupt\nstruct wcd938x_sdw_priv by accessing port_map array out of range\nwith channel id instead of port id."], "name": "CVE-2022-48716", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-06-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48716\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48716\nhttps://lore.kernel.org/linux-cve-announce/2024062055-CVE-2022-48716-7621@gregkh/T"], "threat_severity": "Low"}

{}