{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-38262", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:23.997Z", "datePublished": "2025-07-09T10:42:37.410Z", "dateUpdated": "2025-07-17T16:55:47.719Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-07-17T16:55:47.719Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: serial: uartlite: register uart driver in init\n\nWhen two instances of uart devices are probing, a concurrency race can\noccur. If one thread calls uart_register_driver function, which first\nallocates and assigns memory to 'uart_state' member of uart_driver\nstructure, the other instance can bypass uart driver registration and\ncall ulite_assign. This calls uart_add_one_port, which expects the uart\ndriver to be fully initialized. This leads to a kernel panic due to a\nnull pointer dereference:\n\n[ 8.143581] BUG: kernel NULL pointer dereference, address: 00000000000002b8\n[ 8.156982] #PF: supervisor write access in kernel mode\n[ 8.156984] #PF: error_code(0x0002) - not-present page\n[ 8.156986] PGD 0 P4D 0\n...\n[ 8.180668] RIP: 0010:mutex_lock+0x19/0x30\n[ 8.188624] Call Trace:\n[ 8.188629] ? __die_body.cold+0x1a/0x1f\n[ 8.195260] ? page_fault_oops+0x15c/0x290\n[ 8.209183] ? __irq_resolve_mapping+0x47/0x80\n[ 8.209187] ? exc_page_fault+0x64/0x140\n[ 8.209190] ? asm_exc_page_fault+0x22/0x30\n[ 8.209196] ? mutex_lock+0x19/0x30\n[ 8.223116] uart_add_one_port+0x60/0x440\n[ 8.223122] ? proc_tty_register_driver+0x43/0x50\n[ 8.223126] ? tty_register_driver+0x1ca/0x1e0\n[ 8.246250] ulite_probe+0x357/0x4b0 [uartlite]\n\nTo prevent it, move uart driver registration in to init function. This\nwill ensure that uart_driver is always registered when probe function\nis called."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/tty/serial/uartlite.c"], "versions": [{"version": "238b8721a554a33a451a3f13bdb5be8fe5cfc927", "lessThan": "5015eed450005bab6e5cb6810f7a62eab0434fc4", "status": "affected", "versionType": "git"}, {"version": "238b8721a554a33a451a3f13bdb5be8fe5cfc927", "lessThan": "9c905fdbba68a6d73d39a6b7de9b9f0d6c46df87", "status": "affected", "versionType": "git"}, {"version": "238b8721a554a33a451a3f13bdb5be8fe5cfc927", "lessThan": "6db06aaea07bb7c8e33a425cf7b98bf29ee6056e", "status": "affected", "versionType": "git"}, {"version": "238b8721a554a33a451a3f13bdb5be8fe5cfc927", "lessThan": "8e958d10dd0ce5ae674cce460db5c9ca3f25243b", "status": "affected", "versionType": "git"}, {"version": "238b8721a554a33a451a3f13bdb5be8fe5cfc927", "lessThan": "685d29f2c5057b32c7b1b46f2a7d303b926c8f72", "status": "affected", "versionType": "git"}, {"version": "238b8721a554a33a451a3f13bdb5be8fe5cfc927", "lessThan": "f5e4229d94792b40e750f30c92bcf7a3107c72ef", "status": "affected", "versionType": "git"}, {"version": "238b8721a554a33a451a3f13bdb5be8fe5cfc927", "lessThan": "6bd697b5fc39fd24e2aa418c7b7d14469f550a93", "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/uartlite.c"], "versions": [{"version": "2.6.20", "status": "affected"}, {"version": "0", "lessThan": "2.6.20", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.296", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.187", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.143", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.96", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.36", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15.5", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16-rc1", "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:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.20", "versionEndExcluding": "5.4.296"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.20", "versionEndExcluding": "5.15.187"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.20", "versionEndExcluding": "6.1.143"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.20", "versionEndExcluding": "6.6.96"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.20", "versionEndExcluding": "6.12.36"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.20", "versionEndExcluding": "6.15.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.20", "versionEndExcluding": "6.16-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/5015eed450005bab6e5cb6810f7a62eab0434fc4"}, {"url": "https://git.kernel.org/stable/c/9c905fdbba68a6d73d39a6b7de9b9f0d6c46df87"}, {"url": "https://git.kernel.org/stable/c/6db06aaea07bb7c8e33a425cf7b98bf29ee6056e"}, {"url": "https://git.kernel.org/stable/c/8e958d10dd0ce5ae674cce460db5c9ca3f25243b"}, {"url": "https://git.kernel.org/stable/c/685d29f2c5057b32c7b1b46f2a7d303b926c8f72"}, {"url": "https://git.kernel.org/stable/c/f5e4229d94792b40e750f30c92bcf7a3107c72ef"}, {"url": "https://git.kernel.org/stable/c/6bd697b5fc39fd24e2aa418c7b7d14469f550a93"}], "title": "tty: serial: uartlite: register uart driver in init", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: serial: uartlite: register uart driver in init\n\nWhen two instances of uart devices are probing, a concurrency race can\noccur. If one thread calls uart_register_driver function, which first\nallocates and assigns memory to 'uart_state' member of uart_driver\nstructure, the other instance can bypass uart driver registration and\ncall ulite_assign. This calls uart_add_one_port, which expects the uart\ndriver to be fully initialized. This leads to a kernel panic due to a\nnull pointer dereference:\n\n[ 8.143581] BUG: kernel NULL pointer dereference, address: 00000000000002b8\n[ 8.156982] #PF: supervisor write access in kernel mode\n[ 8.156984] #PF: error_code(0x0002) - not-present page\n[ 8.156986] PGD 0 P4D 0\n...\n[ 8.180668] RIP: 0010:mutex_lock+0x19/0x30\n[ 8.188624] Call Trace:\n[ 8.188629] ? __die_body.cold+0x1a/0x1f\n[ 8.195260] ? page_fault_oops+0x15c/0x290\n[ 8.209183] ? __irq_resolve_mapping+0x47/0x80\n[ 8.209187] ? exc_page_fault+0x64/0x140\n[ 8.209190] ? asm_exc_page_fault+0x22/0x30\n[ 8.209196] ? mutex_lock+0x19/0x30\n[ 8.223116] uart_add_one_port+0x60/0x440\n[ 8.223122] ? proc_tty_register_driver+0x43/0x50\n[ 8.223126] ? tty_register_driver+0x1ca/0x1e0\n[ 8.246250] ulite_probe+0x357/0x4b0 [uartlite]\n\nTo prevent it, move uart driver registration in to init function. This\nwill ensure that uart_driver is always registered when probe function\nis called."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tty: serial: uartlite: registrar el controlador UART en init. Cuando dos instancias de dispositivos UART est\u00e1n realizando pruebas, puede producirse una ejecuci\u00f3n de concurrencia. Si un subproceso invoca la funci\u00f3n uart_register_driver, que primero asigna memoria al miembro 'uart_state' de la estructura uart_driver, la otra instancia puede omitir el registro del controlador UART y llamar a ulite_assign. Esto invoca uart_add_one_port, que espera que el controlador UART est\u00e9 completamente inicializado. Esto genera un p\u00e1nico del kernel debido a una desreferencia de puntero nulo: [8.143581] ERROR: desreferencia de puntero NULL del kernel, direcci\u00f3n: 00000000000002b8 [8.156982] #PF: acceso de escritura del supervisor en modo kernel [8.156984] #PF: error_code(0x0002) - p\u00e1gina no presente [8.156986] PGD 0 P4D 0 ... [8.180668] RIP: 0010:mutex_lock+0x19/0x30 [8.188624] Rastreo de llamadas: [ 8.188629] ? __die_body.cold+0x1a/0x1f [ 8.195260] ? page_fault_oops+0x15c/0x290 [ 8.209183] ? __irq_resolve_mapping+0x47/0x80 [ 8.209187] ? exc_page_fault+0x64/0x140 [ 8.209190] ? asm_exc_page_fault+0x22/0x30 [ 8.209196] ? mutex_lock+0x19/0x30 [ 8.223116] uart_add_one_port+0x60/0x440 [ 8.223122] ? proc_tty_register_driver+0x43/0x50 [ 8.223126] ? tty_register_driver+0x1ca/0x1e0 [ 8.246250] ulite_probe+0x357/0x4b0 [uartlite] Para evitarlo, mueva el registro del controlador UART a la funci\u00f3n init. Esto garantizar\u00e1 que uart_driver siempre se registre al llamar a la funci\u00f3n de sondeo."}], "id": "CVE-2025-38262", "lastModified": "2025-07-17T17:15:39.130", "metrics": {}, "published": "2025-07-09T11:15:28.570", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5015eed450005bab6e5cb6810f7a62eab0434fc4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/685d29f2c5057b32c7b1b46f2a7d303b926c8f72"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6bd697b5fc39fd24e2aa418c7b7d14469f550a93"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6db06aaea07bb7c8e33a425cf7b98bf29ee6056e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8e958d10dd0ce5ae674cce460db5c9ca3f25243b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9c905fdbba68a6d73d39a6b7de9b9f0d6c46df87"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f5e4229d94792b40e750f30c92bcf7a3107c72ef"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: tty: serial: uartlite: register uart driver in init", "id": "2378987", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2378987"}, "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": ["No description is available for this CVE."], "name": "CVE-2025-38262", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-07-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38262\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38262\nhttps://lore.kernel.org/linux-cve-announce/2025070936-CVE-2025-38262-419f@gregkh/T"], "threat_severity": "Moderate"}