{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-48994", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-22T01:27:53.637Z", "datePublished": "2024-10-21T20:06:10.814Z", "dateUpdated": "2024-11-04T12:20:38.725Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-04T12:20:38.725Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: seq: Fix function prototype mismatch in snd_seq_expand_var_event\n\nWith clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG),\nindirect call targets are validated against the expected function\npointer prototype to make sure the call target is valid to help mitigate\nROP attacks. If they are not identical, there is a failure at run time,\nwhich manifests as either a kernel panic or thread getting killed.\n\nseq_copy_in_user() and seq_copy_in_kernel() did not have prototypes\nmatching snd_seq_dump_func_t. Adjust this and remove the casts. There\nare not resulting binary output differences.\n\nThis was found as a result of Clang's new -Wcast-function-type-strict\nflag, which is more sensitive than the simpler -Wcast-function-type,\nwhich only checks for type width mismatches."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/core/seq/seq_memory.c"], "versions": [{"version": "1da177e4c3f4", "lessThan": "b38486e82ecb", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "e385360705a0", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "2f46e95bf344", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "63badfed2002", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "15c42ab8d43a", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "fccd454129f6", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "13ee8fb5410b", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "05530ef7cf7c", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/core/seq/seq_memory.c"], "versions": [{"version": "4.9.336", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.14.302", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.269", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.227", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.159", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.83", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.13", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/b38486e82ecb9f3046e0184205f6b61408fc40c9"}, {"url": "https://git.kernel.org/stable/c/e385360705a0b346bdb57ce938249175d0613b8a"}, {"url": "https://git.kernel.org/stable/c/2f46e95bf344abc4e74f8158901d32a869e0adb6"}, {"url": "https://git.kernel.org/stable/c/63badfed200219ca656968725f1a43df293ac936"}, {"url": "https://git.kernel.org/stable/c/15c42ab8d43acb73e2eba361ad05822c0af0ecfa"}, {"url": "https://git.kernel.org/stable/c/fccd454129f6a0739651f7f58307cdb631fd6e89"}, {"url": "https://git.kernel.org/stable/c/13ee8fb5410b740c8dd2867d3557c7662f7dda2d"}, {"url": "https://git.kernel.org/stable/c/05530ef7cf7c7d700f6753f058999b1b5099a026"}], "title": "ALSA: seq: Fix function prototype mismatch in snd_seq_expand_var_event", "x_generator": {"engine": "bippy-9e1c9544281a"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48994", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-22T13:16:04.929869Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-22T13:18:41.685Z"}}]}}

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If they are not identical, there is a failure at run time,\nwhich manifests as either a kernel panic or thread getting killed.\n\nseq_copy_in_user() and seq_copy_in_kernel() did not have prototypes\nmatching snd_seq_dump_func_t. Adjust this and remove the casts. There\nare not resulting binary output differences.\n\nThis was found as a result of Clang's new -Wcast-function-type-strict\nflag, which is more sensitive than the simpler -Wcast-function-type,\nwhich only checks for type width mismatches."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ALSA: seq: Fix function prototipo desajuste en snd_seq_expand_var_event Con la integridad del flujo de control del kernel de clang (kCFI, CONFIG_CFI_CLANG), los objetivos de llamada indirecta se validan contra el prototipo de puntero de funci\u00f3n esperado para asegurarse de que el objetivo de llamada sea v\u00e1lido para ayudar a mitigar los ataques ROP. Si no son id\u00e9nticos, hay un error en el tiempo de ejecuci\u00f3n, que se manifiesta como un p\u00e1nico del kernel o la muerte del hilo. seq_copy_in_user() y seq_copy_in_kernel() no ten\u00edan prototipos que coincidieran con snd_seq_dump_func_t. Aj\u00fastelo y elimine las conversiones. No hay diferencias de salida binaria resultantes. 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{"bugzilla": {"description": "kernel: ALSA: seq: Fix function prototype mismatch in snd_seq_expand_var_event", "id": "2320706", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320706"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nALSA: seq: Fix function prototype mismatch in snd_seq_expand_var_event\nWith clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG),\nindirect call targets are validated against the expected function\npointer prototype to make sure the call target is valid to help mitigate\nROP attacks. If they are not identical, there is a failure at run time,\nwhich manifests as either a kernel panic or thread getting killed.\nseq_copy_in_user() and seq_copy_in_kernel() did not have prototypes\nmatching snd_seq_dump_func_t. Adjust this and remove the casts. There\nare not resulting binary output differences.\nThis was found as a result of Clang's new -Wcast-function-type-strict\nflag, which is more sensitive than the simpler -Wcast-function-type,\nwhich only checks for type width mismatches."], "name": "CVE-2022-48994", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48994\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48994\nhttps://lore.kernel.org/linux-cve-announce/2024102149-CVE-2022-48994-530f@gregkh/T"], "threat_severity": "Moderate"}