{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-48870", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-16T11:38:08.921Z", "datePublished": "2024-08-21T06:10:00.678Z", "dateUpdated": "2024-09-12T17:32:54.375Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-08-21T06:10:00.678Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: fix possible null-ptr-defer in spk_ttyio_release\n\nRun the following tests on the qemu platform:\n\nsyzkaller:~# modprobe speakup_audptr\n input: Speakup as /devices/virtual/input/input4\n initialized device: /dev/synth, node (MAJOR 10, MINOR 125)\n speakup 3.1.6: initialized\n synth name on entry is: (null)\n synth probe\n\nspk_ttyio_initialise_ldisc failed because tty_kopen_exclusive returned\nfailed (errno -16), then remove the module, we will get a null-ptr-defer\nproblem, as follow:\n\nsyzkaller:~# modprobe -r speakup_audptr\n releasing synth audptr\n BUG: kernel NULL pointer dereference, address: 0000000000000080\n #PF: supervisor write access in kernel mode\n #PF: error_code(0x0002) - not-present page\n PGD 0 P4D 0\n Oops: 0002 [#1] PREEMPT SMP PTI\n CPU: 2 PID: 204 Comm: modprobe Not tainted 6.1.0-rc6-dirty #1\n RIP: 0010:mutex_lock+0x14/0x30\n Call Trace:\n <TASK>\n spk_ttyio_release+0x19/0x70 [speakup]\n synth_release.part.6+0xac/0xc0 [speakup]\n synth_remove+0x56/0x60 [speakup]\n __x64_sys_delete_module+0x156/0x250\n ? fpregs_assert_state_consistent+0x1d/0x50\n do_syscall_64+0x37/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n </TASK>\n Modules linked in: speakup_audptr(-) speakup\n Dumping ftrace buffer:\n\nin_synth->dev was not initialized during modprobe, so we add check\nfor in_synth->dev to fix this bug."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/accessibility/speakup/spk_ttyio.c"], "versions": [{"version": "4f2a81f3a882", "lessThan": "2da67bff29ab", "status": "affected", "versionType": "git"}, {"version": "4f2a81f3a882", "lessThan": "64152e05a4de", "status": "affected", "versionType": "git"}, {"version": "4f2a81f3a882", "lessThan": "5abbeebd8296", "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/accessibility/speakup/spk_ttyio.c"], "versions": [{"version": "5.12", "status": "affected"}, {"version": "0", "lessThan": "5.12", "status": "unaffected", "versionType": "custom"}, {"version": "5.15.90", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.1.8", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/2da67bff29ab49caafb0766e8b8383b735ff796f"}, {"url": "https://git.kernel.org/stable/c/64152e05a4de3ebf59f1740a0985a6d5fba0c77b"}, {"url": "https://git.kernel.org/stable/c/5abbeebd8296c2301023b8dc4b5a6c0d5229b4f5"}], "title": "tty: fix possible null-ptr-defer in spk_ttyio_release", "x_generator": {"engine": "bippy-c9c4e1df01b2"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48870", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:05:32.027830Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-12T17:32:54.375Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-48870", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-16T11:38:08.921Z", "datePublished": "2024-08-21T06:10:00.678Z", "dateUpdated": "2024-08-21T06:10:00.678Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-08-21T06:10:00.678Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: fix possible null-ptr-defer in spk_ttyio_release\n\nRun the following tests on the qemu platform:\n\nsyzkaller:~# modprobe speakup_audptr\n input: Speakup as /devices/virtual/input/input4\n initialized device: /dev/synth, node (MAJOR 10, MINOR 125)\n speakup 3.1.6: initialized\n synth name on entry is: (null)\n synth probe\n\nspk_ttyio_initialise_ldisc failed because tty_kopen_exclusive returned\nfailed (errno -16), then remove the module, we will get a null-ptr-defer\nproblem, as follow:\n\nsyzkaller:~# modprobe -r speakup_audptr\n releasing synth audptr\n BUG: kernel NULL pointer dereference, address: 0000000000000080\n #PF: supervisor write access in kernel mode\n #PF: error_code(0x0002) - not-present page\n PGD 0 P4D 0\n Oops: 0002 [#1] PREEMPT SMP PTI\n CPU: 2 PID: 204 Comm: modprobe Not tainted 6.1.0-rc6-dirty #1\n RIP: 0010:mutex_lock+0x14/0x30\n Call Trace:\n <TASK>\n spk_ttyio_release+0x19/0x70 [speakup]\n synth_release.part.6+0xac/0xc0 [speakup]\n synth_remove+0x56/0x60 [speakup]\n __x64_sys_delete_module+0x156/0x250\n ? fpregs_assert_state_consistent+0x1d/0x50\n do_syscall_64+0x37/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n </TASK>\n Modules linked in: speakup_audptr(-) speakup\n Dumping ftrace buffer:\n\nin_synth->dev was not initialized during modprobe, so we add check\nfor in_synth->dev to fix this bug."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/accessibility/speakup/spk_ttyio.c"], "versions": [{"version": "4f2a81f3a882", "lessThan": "2da67bff29ab", "status": "affected", "versionType": "git"}, {"version": "4f2a81f3a882", "lessThan": "64152e05a4de", "status": "affected", "versionType": "git"}, {"version": "4f2a81f3a882", "lessThan": "5abbeebd8296", "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/accessibility/speakup/spk_ttyio.c"], "versions": [{"version": "5.12", "status": "affected"}, {"version": "0", "lessThan": "5.12", "status": "unaffected", "versionType": "custom"}, {"version": "5.15.90", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.1.8", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/2da67bff29ab49caafb0766e8b8383b735ff796f"}, {"url": "https://git.kernel.org/stable/c/64152e05a4de3ebf59f1740a0985a6d5fba0c77b"}, {"url": "https://git.kernel.org/stable/c/5abbeebd8296c2301023b8dc4b5a6c0d5229b4f5"}], "title": "tty: fix possible null-ptr-defer in spk_ttyio_release", "x_generator": {"engine": "bippy-c9c4e1df01b2"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48870", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:05:32.027830Z"}}}], "providerMetadata": {"shortName": "CISA-ADP", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "dateUpdated": "2024-09-11T12:42:11.943Z"}, "title": "CISA ADP Vulnrichment"}]}}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "82544A71-562D-4C2F-B75E-7193C3B97CD0", "versionEndExcluding": "5.15.90", "versionStartIncluding": "5.12", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A6AFE6C9-3F59-4711-B2CF-7D6682FF6BD0", "versionEndExcluding": "6.1.8", "versionStartIncluding": "5.16", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: fix possible null-ptr-defer in spk_ttyio_release\n\nRun the following tests on the qemu platform:\n\nsyzkaller:~# modprobe speakup_audptr\n input: Speakup as /devices/virtual/input/input4\n initialized device: /dev/synth, node (MAJOR 10, MINOR 125)\n speakup 3.1.6: initialized\n synth name on entry is: (null)\n synth probe\n\nspk_ttyio_initialise_ldisc failed because tty_kopen_exclusive returned\nfailed (errno -16), then remove the module, we will get a null-ptr-defer\nproblem, as follow:\n\nsyzkaller:~# modprobe -r speakup_audptr\n releasing synth audptr\n BUG: kernel NULL pointer dereference, address: 0000000000000080\n #PF: supervisor write access in kernel mode\n #PF: error_code(0x0002) - not-present page\n PGD 0 P4D 0\n Oops: 0002 [#1] PREEMPT SMP PTI\n CPU: 2 PID: 204 Comm: modprobe Not tainted 6.1.0-rc6-dirty #1\n RIP: 0010:mutex_lock+0x14/0x30\n Call Trace:\n <TASK>\n spk_ttyio_release+0x19/0x70 [speakup]\n synth_release.part.6+0xac/0xc0 [speakup]\n synth_remove+0x56/0x60 [speakup]\n __x64_sys_delete_module+0x156/0x250\n ? fpregs_assert_state_consistent+0x1d/0x50\n do_syscall_64+0x37/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n </TASK>\n Modules linked in: speakup_audptr(-) speakup\n Dumping ftrace buffer:\n\nin_synth->dev was not initialized during modprobe, so we add check\nfor in_synth->dev to fix this bug."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tty: corrige posible null-ptr-defer en spk_ttyio_release Ejecute las siguientes pruebas en la plataforma qemu: syzkaller:~# modprobe Speakup_audptr input: Speakup as /devices/virtual/input/input4 dispositivo inicializado: /dev/synth, nodo (MAJOR 10, MINOR 125) Speakup 3.1.6: el nombre del sintetizador inicializado en la entrada es: (nulo) la sonda de sintetizador spk_ttyio_initialise_ldisc fall\u00f3 porque tty_kopen_exclusive devolvi\u00f3 un error (errno -16), luego elimine el m\u00f3dulo, obtendremos un problema de aplazamiento de ptr nulo, como sigue: syzkaller:~# modprobe -r Speakup_audptr liberando sintetizador audptr ERROR: desreferencia del puntero NULL del kernel, direcci\u00f3n: 00000000000000080 #PF: acceso de escritura del supervisor en modo kernel #PF: c\u00f3digo_error(0x0002 ) - p\u00e1gina no presente PGD 0 P4D 0 Ups: 0002 [#1] PREEMPT SMP PTI CPU: 2 PID: 204 Comm: modprobe No contaminado 6.1.0-rc6-dirty #1 RIP: 0010:mutex_lock+0x14/0x30 Llamada Seguimiento: spk_ttyio_release+0x19/0x70 [speakup] synth_release.part.6+0xac/0xc0 [speakup] synth_remove+0x56/0x60 [speakup] __x64_sys_delete_module+0x156/0x250? fpregs_assert_state_consistent+0x1d/0x50 do_syscall_64+0x37/0x90 entry_syscall_64_after_hwframe+0x63/0xcd m\u00f3dulos vinculados en: sheakup_audptr (-) volcando ftrace b\u00fafer: in_synth-&gt;&gt; nth-&gt; dev para corregir este error."}], "id": "CVE-2022-48870", "lastModified": "2024-09-06T14:20:52.290", "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": "2024-08-21T07:15:04.143", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2da67bff29ab49caafb0766e8b8383b735ff796f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5abbeebd8296c2301023b8dc4b5a6c0d5229b4f5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/64152e05a4de3ebf59f1740a0985a6d5fba0c77b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: tty: fix possible null-ptr-defer in spk_ttyio_release", "id": "2306391", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2306391"}, "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:\ntty: fix possible null-ptr-defer in spk_ttyio_release\nRun the following tests on the qemu platform:\nsyzkaller:~# modprobe speakup_audptr\ninput: Speakup as /devices/virtual/input/input4\ninitialized device: /dev/synth, node (MAJOR 10, MINOR 125)\nspeakup 3.1.6: initialized\nsynth name on entry is: (null)\nsynth probe\nspk_ttyio_initialise_ldisc failed because tty_kopen_exclusive returned\nfailed (errno -16), then remove the module, we will get a null-ptr-defer\nproblem, as follow:\nsyzkaller:~# modprobe -r speakup_audptr\nreleasing synth audptr\nBUG: kernel NULL pointer dereference, address: 0000000000000080\n#PF: supervisor write access in kernel mode\n#PF: error_code(0x0002) - not-present page\nPGD 0 P4D 0\nOops: 0002 [#1] PREEMPT SMP PTI\nCPU: 2 PID: 204 Comm: modprobe Not tainted 6.1.0-rc6-dirty #1\nRIP: 0010:mutex_lock+0x14/0x30\nCall Trace:\n<TASK>\nspk_ttyio_release+0x19/0x70 [speakup]\nsynth_release.part.6+0xac/0xc0 [speakup]\nsynth_remove+0x56/0x60 [speakup]\n__x64_sys_delete_module+0x156/0x250\n? fpregs_assert_state_consistent+0x1d/0x50\ndo_syscall_64+0x37/0x90\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\n</TASK>\nModules linked in: speakup_audptr(-) speakup\nDumping ftrace buffer:\nin_synth->dev was not initialized during modprobe, so we add check\nfor in_synth->dev to fix this bug."], "name": "CVE-2022-48870", "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": "2024-08-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48870\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48870\nhttps://lore.kernel.org/linux-cve-announce/2024082105-CVE-2022-48870-3fcb@gregkh/T"], "threat_severity": "Moderate"}