CVE-2022-50165

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It results in the following warning:\n\n warning: variable 'rc' is uninitialized when used here [-Wuninitialized]\n return rc;\n ^~\n\nRemove rc variable and just return the passed in length if the\nmemdup_user() succeeds."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/ath/wil6210/debugfs.c"], "versions": [{"version": "ff974e4083341383d3dd4079e52ed30f57f376f0", "lessThan": "b13c84e877d7a3095bacb14665db304b2c00e95f", "status": "affected", "versionType": "git"}, {"version": "ff974e4083341383d3dd4079e52ed30f57f376f0", "lessThan": "c9fde3a44da566d8929070ab6bda4f0dfa9955d0", "status": "affected", "versionType": "git"}, {"version": "ff974e4083341383d3dd4079e52ed30f57f376f0", "lessThan": "52b11a48cf073e0aab923ae809a765d756cecf13", "status": "affected", "versionType": "git"}, {"version": "ff974e4083341383d3dd4079e52ed30f57f376f0", 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`wil_write_file_wmi()`", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

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It results in the following warning:\n\n warning: variable 'rc' is uninitialized when used here [-Wuninitialized]\n return rc;\n ^~\n\nRemove rc variable and just return the passed in length if the\nmemdup_user() succeeds."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: wil6210: debugfs: se corrige el uso de variables no inicializadas en `wil_write_file_wmi()`. El commit 7a4836560a61 cambia `simple_write_to_buffer()` por `memdup_user()`, pero olvida cambiar el valor devuelto que proviene de la llamada `simple_write_to_buffer()`. Esto genera la siguiente advertencia: `advertencia: la variable `rc' no est\u00e1 inicializada cuando se usa aqu\u00ed` [-Wuninitialized] return rc; ^~ Se elimina la variable `rc` y se devuelve solo la longitud introducida si `memdup_user()` se ejecuta correctamente."}], "id": "CVE-2022-50165", "lastModified": "2026-06-17T05:22:53.563", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-06-18T11:15:46.790", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/409bd72e544fdf4809ea0dac337bb5a1f11a25a9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/52b11a48cf073e0aab923ae809a765d756cecf13"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/689e5caf63e99e15d2f485ec297c1bf9243e0e28"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6c5fee83bdbeffe8d607d1ab125122a75f40bd1a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b13c84e877d7a3095bacb14665db304b2c00e95f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c9fde3a44da566d8929070ab6bda4f0dfa9955d0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d4742c886043b69d2d058bfde3998ef333b66595"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d578e0af3a003736f6c440188b156483d451b329"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-908"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: wifi: wil6210: debugfs: fix uninitialized variable use in `wil_write_file_wmi()`", "id": "2373473", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373473"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: wil6210: debugfs: fix uninitialized variable use in `wil_write_file_wmi()`\nCommit 7a4836560a61 changes simple_write_to_buffer() with memdup_user()\nbut it forgets to change the value to be returned that came from\nsimple_write_to_buffer() call. It results in the following warning:\nwarning: variable 'rc' is uninitialized when used here [-Wuninitialized]\nreturn rc;\n^~\nRemove rc variable and just return the passed in length if the\nmemdup_user() succeeds."], "name": "CVE-2022-50165", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"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": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Under investigation", "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": "2025-06-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50165\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50165\nhttps://lore.kernel.org/linux-cve-announce/2025061827-CVE-2022-50165-1495@gregkh/T"], "statement": "This patch fixes an uninitialized return value in the wil_write_file_wmi() debugfs handler, which could lead to unpredictable behavior or kernel warnings when accessed.\nThe issue was introduced in a prior refactor replacing simple_write_to_buffer() with memdup_user() but without updating the return logic. Only privileged users (typically root) can access debugfs interfaces, which justifies the high privilege requirement (PR:H) for triggering this issue.", "threat_severity": "Low"}

{"created": "2025-06-23T08:20:14.666362+00:00", "updated": "2025-06-23T08:20:14.666406+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}