{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49304", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.535Z", "datePublished": "2025-02-26T02:10:37.726Z", "dateUpdated": "2025-05-04T08:34:42.892Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:34:42.892Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers: tty: serial: Fix deadlock in sa1100_set_termios()\n\nThere is a deadlock in sa1100_set_termios(), which is shown\nbelow:\n\n   (Thread 1)              |      (Thread 2)\n                           | sa1100_enable_ms()\nsa1100_set_termios()       |  mod_timer()\n spin_lock_irqsave() //(1) |  (wait a time)\n ...                       | sa1100_timeout()\n del_timer_sync()          |  spin_lock_irqsave() //(2)\n (wait timer to stop)      |  ...\n\nWe hold sport->port.lock in position (1) of thread 1 and\nuse del_timer_sync() to wait timer to stop, but timer handler\nalso need sport->port.lock in position (2) of thread 2. As a result,\nsa1100_set_termios() will block forever.\n\nThis patch moves del_timer_sync() before spin_lock_irqsave()\nin order to prevent the deadlock."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/tty/serial/sa1100.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "0976808d0d171ec837d4bd3e9f4ad4a00ab703b8", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "85e20f8bd31a46d8c60103d0274a8ebe8f47f2b2", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "920f0ae7a129ffee98a106e3bbdfd61a2a59e939", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "09a5958a2452ad22d0cb638711ef34ea1863a829", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "6e2273eefab54a521d9c59efb6e1114e742bdf41", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "2cbfc38df580bff5b2fe19f21c1a7520efcc4b3b", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "553213432ef0c295becdc08c0207d2094468f673", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "34d91e555e5582cffdbcbb75517bc9217866823e", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "62b2caef400c1738b6d22f636c628d9f85cd4c4c", "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/tty/serial/sa1100.c"], "versions": [{"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": "5.10.122", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.47", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.15", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.4", "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:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.9.318"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.14.283"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.19.247"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.4.198"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.10.122"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.15.47"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.17.15"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.18.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0976808d0d171ec837d4bd3e9f4ad4a00ab703b8"}, {"url": "https://git.kernel.org/stable/c/85e20f8bd31a46d8c60103d0274a8ebe8f47f2b2"}, {"url": "https://git.kernel.org/stable/c/920f0ae7a129ffee98a106e3bbdfd61a2a59e939"}, {"url": "https://git.kernel.org/stable/c/09a5958a2452ad22d0cb638711ef34ea1863a829"}, {"url": "https://git.kernel.org/stable/c/6e2273eefab54a521d9c59efb6e1114e742bdf41"}, {"url": "https://git.kernel.org/stable/c/2cbfc38df580bff5b2fe19f21c1a7520efcc4b3b"}, {"url": "https://git.kernel.org/stable/c/553213432ef0c295becdc08c0207d2094468f673"}, {"url": "https://git.kernel.org/stable/c/34d91e555e5582cffdbcbb75517bc9217866823e"}, {"url": "https://git.kernel.org/stable/c/62b2caef400c1738b6d22f636c628d9f85cd4c4c"}], "title": "drivers: tty: serial: Fix deadlock in sa1100_set_termios()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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As a result,\nsa1100_set_termios() will block forever.\n\nThis patch moves del_timer_sync() before spin_lock_irqsave()\nin order to prevent the deadlock."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drivers: tty: serial: Arreglar interbloqueo en sa1100_set_termios() Hay un interbloqueo en sa1100_set_termios(), que se muestra a continuaci\u00f3n: (Hilo 1) | (Hilo 2) | sa1100_enable_ms() sa1100_set_termios() | mod_timer() spin_lock_irqsave() //(1) | (esperar un tiempo) ... | sa1100_timeout() del_timer_sync() | spin_lock_irqsave() //(2) (esperar a que el temporizador se detenga) | ... Mantenemos sport->port.lock en la posici\u00f3n (1) del hilo 1 y usamos del_timer_sync() para esperar a que el temporizador se detenga, pero el controlador del temporizador tambi\u00e9n necesita sport->port.lock en la posici\u00f3n (2) del hilo 2. Como resultado, sa1100_set_termios() se bloquear\u00e1 para siempre. Este parche mueve del_timer_sync() antes de spin_lock_irqsave() para evitar el bloqueo."}], "id": "CVE-2022-49304", "lastModified": "2025-04-14T20:06:02.607", "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": "2025-02-26T07:01:07.213", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0976808d0d171ec837d4bd3e9f4ad4a00ab703b8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/09a5958a2452ad22d0cb638711ef34ea1863a829"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2cbfc38df580bff5b2fe19f21c1a7520efcc4b3b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/34d91e555e5582cffdbcbb75517bc9217866823e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/553213432ef0c295becdc08c0207d2094468f673"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/62b2caef400c1738b6d22f636c628d9f85cd4c4c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6e2273eefab54a521d9c59efb6e1114e742bdf41"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/85e20f8bd31a46d8c60103d0274a8ebe8f47f2b2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/920f0ae7a129ffee98a106e3bbdfd61a2a59e939"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: drivers: tty: serial: Fix deadlock in sa1100_set_termios()", "id": "2348137", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348137"}, "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"}, "cwe": "CWE-667", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrivers: tty: serial: Fix deadlock in sa1100_set_termios()\nThere is a deadlock in sa1100_set_termios(), which is shown\nbelow:\n(Thread 1)              |      (Thread 2)\n| sa1100_enable_ms()\nsa1100_set_termios()       |  mod_timer()\nspin_lock_irqsave() //(1) |  (wait a time)\n...                       | sa1100_timeout()\ndel_timer_sync()          |  spin_lock_irqsave() //(2)\n(wait timer to stop)      |  ...\nWe hold sport->port.lock in position (1) of thread 1 and\nuse del_timer_sync() to wait timer to stop, but timer handler\nalso need sport->port.lock in position (2) of thread 2. As a result,\nsa1100_set_termios() will block forever.\nThis patch moves del_timer_sync() before spin_lock_irqsave()\nin order to prevent the deadlock."], "name": "CVE-2022-49304", "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": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49304\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49304\nhttps://lore.kernel.org/linux-cve-announce/2025022634-CVE-2022-49304-db99@gregkh/T"], "threat_severity": "Moderate"}