{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-21T03:30:19.603","vulnerabilities":[{"cve":{"id":"CVE-2022-49295","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-02-26T07:01:06.333","lastModified":"2025-10-01T20:16:02.203","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnbd: call genl_unregister_family() first in nbd_cleanup()\n\nOtherwise there may be race between module removal and the handling of\nnetlink command, which can lead to the oops as shown below:\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000098\n  Oops: 0002 [#1] SMP PTI\n  CPU: 1 PID: 31299 Comm: nbd-client Tainted: G            E     5.14.0-rc4\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)\n  RIP: 0010:down_write+0x1a/0x50\n  Call Trace:\n   start_creating+0x89/0x130\n   debugfs_create_dir+0x1b/0x130\n   nbd_start_device+0x13d/0x390 [nbd]\n   nbd_genl_connect+0x42f/0x748 [nbd]\n   genl_family_rcv_msg_doit.isra.0+0xec/0x150\n   genl_rcv_msg+0xe5/0x1e0\n   netlink_rcv_skb+0x55/0x100\n   genl_rcv+0x29/0x40\n   netlink_unicast+0x1a8/0x250\n   netlink_sendmsg+0x21b/0x430\n   ____sys_sendmsg+0x2a4/0x2d0\n   ___sys_sendmsg+0x81/0xc0\n   __sys_sendmsg+0x62/0xb0\n   __x64_sys_sendmsg+0x1f/0x30\n   do_syscall_64+0x3b/0xc0\n   entry_SYSCALL_64_after_hwframe+0x44/0xae\n  Modules linked in: nbd(E-)"},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nbd: llamar a genl_unregister_family() primero en nbd_cleanup() De lo contrario, puede haber una ejecución entre la eliminación del módulo y la gestión del comando netlink, lo que puede provocar los errores que se muestran a continuación: ERROR: desreferencia de puntero NULL del kernel, dirección: 0000000000000098 Error: 0002 [#1] SMP PTI CPU: 1 PID: 31299 Comm: nbd-client Contaminado: GE 5.14.0-rc4 Nombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996) RIP: 0010:down_write+0x1a/0x50 Rastreo de llamadas: start_creating+0x89/0x130 debugfs_create_dir+0x1b/0x130 nbd_start_device+0x13d/0x390 [nbd] nbd_genl_connect+0x42f/0x748 [nbd] genl_family_rcv_msg_doit.isra.0+0xec/0x150 genl_rcv_msg+0xe5/0x1e0 netlink_rcv_skb+0x55/0x100 genl_rcv+0x29/0x40 netlink_unicast+0x1a8/0x250 netlink_sendmsg+0x21b/0x430 ____sys_sendmsg+0x2a4/0x2d0 ___sys_sendmsg+0x81/0xc0 __sys_sendmsg+0x62/0xb0 __x64_sys_sendmsg+0x1f/0x30 do_syscall_64+0x3b/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae Módulos vinculados en: nbd(E-)"}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":4.7,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.0,"impactScore":3.6},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":4.7,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.0,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-476"}]},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-476"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"4.14.283","matchCriteriaId":"42074657-A7B6-4740-88B7-67B440018C1C"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"4.19.247","matchCriteriaId":"B8CFA0F4-2D75-41F4-9753-87944A08B53B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.4.198","matchCriteriaId":"3EC49633-14DE-4EBD-BB80-76AE2E3EABB9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.122","matchCriteriaId":"1B42AA01-44D8-4572-95E6-FF8E374CF9C5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.47","matchCriteriaId":"FC042EE3-4864-4325-BE0B-4BCDBF11AA61"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"5.17.15","matchCriteriaId":"53E7AA2E-2FB4-45CA-A22B-08B4EDBB51AD"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"5.18.4","matchCriteriaId":"FA6D643C-6D6A-4821-8A8D-B5776B8F0103"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/013a79f1b5c89290e2e97f1ebf14b14e0cf5fe5c","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/06c4da89c24e7023ea448cadf8e9daf06a0aae6e","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/1be608e1ee1f222464b2856bda9b85ab5184a33e","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/3d5da1ffba3388c2ae2e6c598855a4d887d3bf79","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/6f505bbb8063fd3a238a4239d2d8c165e5279f6f","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8a1435c862ea09b06be7acda325128dc08458e25","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/c0868f6e728c3c28bef0e8bee89d2daf86a8bbca","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/cbeafa7a79d08ecdb55f8f1d41a11323d0f709db","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}