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entry_SYSCALL_64_after_hwframe+0x44/0xae"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bloque: Corregir la gesti\u00f3n de colas sin conexi\u00f3n enblk_mq_alloc_request_hctx() Este parche evita que la prueba nvme/004 active lo siguiente: UBSAN: array-index-out-of-bounds in block/blk-mq.h:135:9 index 512 is out of range for type 'long unsigned int [512]' Call Trace: show_stack+0x52/0x58 dump_stack_lvl+0x49/0x5e dump_stack+0x10/0x12 ubsan_epilogue+0x9/0x3b __ubsan_handle_out_of_bounds.cold+0x44/0x49 blk_mq_alloc_request_hctx+0x304/0x310 __nvme_submit_sync_cmd+0x70/0x200 [nvme_core] nvmf_connect_io_queue+0x23e/0x2a0 [nvme_fabrics] nvme_loop_connect_io_queues+0x8d/0xb0 [nvme_loop] nvme_loop_create_ctrl+0x58e/0x7d0 [nvme_loop] nvmf_create_ctrl+0x1d7/0x4d0 [nvme_fabrics] nvmf_dev_write+0xae/0x111 [nvme_fabrics] vfs_write+0x144/0x560 ksys_write+0xb7/0x140 __x64_sys_write+0x42/0x50 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae "}], "id": "CVE-2022-49720", "lastModified": "2025-10-01T20:17:08.730", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 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{"bugzilla": {"description": "kernel: block: Fix handling of offline queues in blk_mq_alloc_request_hctx()", "id": "2347999", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2347999"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-129", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nblock: Fix handling of offline queues in blk_mq_alloc_request_hctx()\nThis patch prevents that test nvme/004 triggers the following:\nUBSAN: array-index-out-of-bounds in block/blk-mq.h:135:9\nindex 512 is out of range for type 'long unsigned int [512]'\nCall Trace:\nshow_stack+0x52/0x58\ndump_stack_lvl+0x49/0x5e\ndump_stack+0x10/0x12\nubsan_epilogue+0x9/0x3b\n__ubsan_handle_out_of_bounds.cold+0x44/0x49\nblk_mq_alloc_request_hctx+0x304/0x310\n__nvme_submit_sync_cmd+0x70/0x200 [nvme_core]\nnvmf_connect_io_queue+0x23e/0x2a0 [nvme_fabrics]\nnvme_loop_connect_io_queues+0x8d/0xb0 [nvme_loop]\nnvme_loop_create_ctrl+0x58e/0x7d0 [nvme_loop]\nnvmf_create_ctrl+0x1d7/0x4d0 [nvme_fabrics]\nnvmf_dev_write+0xae/0x111 [nvme_fabrics]\nvfs_write+0x144/0x560\nksys_write+0xb7/0x140\n__x64_sys_write+0x42/0x50\ndo_syscall_64+0x35/0x80\nentry_SYSCALL_64_after_hwframe+0x44/0xae"], "name": "CVE-2022-49720", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "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": "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "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": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49720\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49720\nhttps://lore.kernel.org/linux-cve-announce/2025022632-CVE-2022-49720-b0a8@gregkh/T"], "threat_severity": "Moderate"}

{}