CVE-2024-50227

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/thunderbolt/retimer.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "08b2771e9270fbe1ed4fbbe93abe05ac7fe9861d", "status": "affected", "version": "ff6ab055e070d819f51196622e08f8941b6d2a4b", "versionType": "git"}, {"lessThan": "e9e1b20fae7de06ba36dd3f8dba858157bad233d", "status": "affected", "version": "ff6ab055e070d819f51196622e08f8941b6d2a4b", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/thunderbolt/retimer.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.11"}, {"lessThan": "6.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.11.*", "status": "unaffected", "version": "6.11.7", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.12", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "386941FE-51A4-4893-9EC3-054AD3863E8D", "versionEndExcluding": "6.11.7", "versionStartIncluding": "6.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*", "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*", "matchCriteriaId": "925478D0-3E3D-4E6F-ACD5-09F28D5DF82C", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*", "matchCriteriaId": "3C95E234-D335-4B6C-96BF-E2CEBD8654ED", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*", "matchCriteriaId": "E0F717D8-3014-4F84-8086-0124B2111379", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*", "matchCriteriaId": "24DBE6C7-2AAE-4818-AED2-E131F153D2FA", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Fix KASAN reported stack out-of-bounds read in tb_retimer_scan()\n\nKASAN reported following issue:\n\n BUG: KASAN: stack-out-of-bounds in tb_retimer_scan+0xffe/0x1550 [thunderbolt]\n Read of size 4 at addr ffff88810111fc1c by task kworker/u56:0/11\n CPU: 0 UID: 0 PID: 11 Comm: kworker/u56:0 Tainted: G U 6.11.0+ #1387\n Tainted: [U]=USER\n Workqueue: thunderbolt0 tb_handle_hotplug [thunderbolt]\n Call Trace:\n <TASK>\n dump_stack_lvl+0x6c/0x90\n print_report+0xd1/0x630\n kasan_report+0xdb/0x110\n __asan_report_load4_noabort+0x14/0x20\n tb_retimer_scan+0xffe/0x1550 [thunderbolt]\n tb_scan_port+0xa6f/0x2060 [thunderbolt]\n tb_handle_hotplug+0x17b1/0x3080 [thunderbolt]\n process_one_work+0x626/0x1100\n worker_thread+0x6c8/0xfa0\n kthread+0x2c8/0x3a0\n ret_from_fork+0x3a/0x80\n ret_from_fork_asm+0x1a/0x30\n\nThis happens because the loop variable still gets incremented by one so\nmax becomes 3 instead of 2, and this makes the second loop read past the\nthe array declared on the stack.\n\nFix this by assigning to max directly in the loop body."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: thunderbolt: Se corrige la lectura fuera de los l\u00edmites de pila informada por KASAN en tb_retimer_scan() KASAN inform\u00f3 el siguiente problema: ERROR: KASAN: pila fuera de los l\u00edmites en tb_retimer_scan+0xffe/0x1550 [thunderbolt] Lectura de tama\u00f1o 4 en la direcci\u00f3n ffff88810111fc1c por la tarea kworker/u56:0/11 CPU: 0 UID: 0 PID: 11 Comm: kworker/u56:0 Tainted: GU 6.11.0+ #1387 Tainted: [U]=USER Workqueue: thunderbolt0 tb_handle_hotplug [thunderbolt] Rastreo de llamadas: dump_stack_lvl+0x6c/0x90 print_report+0xd1/0x630 kasan_report+0xdb/0x110 __asan_report_load4_noabort+0x14/0x20 tb_retimer_scan+0xffe/0x1550 [thunderbolt] tb_scan_port+0xa6f/0x2060 [thunderbolt] tb_handle_hotplug+0x17b1/0x3080 [thunderbolt] process_one_work+0x626/0x1100 worker_thread+0x6c8/0xfa0 kthread+0x2c8/0x3a0 ret_from_fork+0x3a/0x80 ret_from_fork_asm+0x1a/0x30 Esto sucede porque la variable de bucle todav\u00eda se incrementa en uno, por lo que max se convierte en 3 en lugar de 2, y esto hace que el segundo bucle lea m\u00e1s all\u00e1 de la matriz declarada en la pila. Solucione este problema asignando a max directamente en el cuerpo del bucle."}], "id": "CVE-2024-50227", "lastModified": "2026-06-17T08:03:55.480", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-50227", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T20:16:51.510217Z", "version": "2.0.3"}}]}, "published": "2024-11-09T11:15:08.383", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/08b2771e9270fbe1ed4fbbe93abe05ac7fe9861d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e9e1b20fae7de06ba36dd3f8dba858157bad233d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-125"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: thunderbolt: Fix KASAN reported stack out-of-bounds read in tb_retimer_scan()", "id": "2324852", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2324852"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nthunderbolt: Fix KASAN reported stack out-of-bounds read in tb_retimer_scan()\nKASAN reported following issue:\nBUG: KASAN: stack-out-of-bounds in tb_retimer_scan+0xffe/0x1550 [thunderbolt]\nRead of size 4 at addr ffff88810111fc1c by task kworker/u56:0/11\nCPU: 0 UID: 0 PID: 11 Comm: kworker/u56:0 Tainted: G U 6.11.0+ #1387\nTainted: [U]=USER\nWorkqueue: thunderbolt0 tb_handle_hotplug [thunderbolt]\nCall Trace:\n<TASK>\ndump_stack_lvl+0x6c/0x90\nprint_report+0xd1/0x630\nkasan_report+0xdb/0x110\n__asan_report_load4_noabort+0x14/0x20\ntb_retimer_scan+0xffe/0x1550 [thunderbolt]\ntb_scan_port+0xa6f/0x2060 [thunderbolt]\ntb_handle_hotplug+0x17b1/0x3080 [thunderbolt]\nprocess_one_work+0x626/0x1100\nworker_thread+0x6c8/0xfa0\nkthread+0x2c8/0x3a0\nret_from_fork+0x3a/0x80\nret_from_fork_asm+0x1a/0x30\nThis happens because the loop variable still gets incremented by one so\nmax becomes 3 instead of 2, and this makes the second loop read past the\nthe array declared on the stack.\nFix this by assigning to max directly in the loop body."], "name": "CVE-2024-50227", "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": "2024-11-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-50227\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-50227\nhttps://lore.kernel.org/linux-cve-announce/2024110928-CVE-2024-50227-1fae@gregkh/T"], "threat_severity": "Moderate"}

{}