{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-22T20:07:57.365","vulnerabilities":[{"cve":{"id":"CVE-2021-47090","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-03-04T18:15:07.610","lastModified":"2025-02-14T14:31:43.180","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page()\n\nHulk Robot reported a panic in put_page_testzero() when testing\nmadvise() with MADV_SOFT_OFFLINE.  The BUG() is triggered when retrying\nget_any_page().  This is because we keep MF_COUNT_INCREASED flag in\nsecond try but the refcnt is not increased.\n\n    page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0)\n    ------------[ cut here ]------------\n    kernel BUG at include/linux/mm.h:737!\n    invalid opcode: 0000 [#1] PREEMPT SMP\n    CPU: 5 PID: 2135 Comm: sshd Tainted: G    B             5.16.0-rc6-dirty #373\n    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\n    RIP: release_pages+0x53f/0x840\n    Call Trace:\n      free_pages_and_swap_cache+0x64/0x80\n      tlb_flush_mmu+0x6f/0x220\n      unmap_page_range+0xe6c/0x12c0\n      unmap_single_vma+0x90/0x170\n      unmap_vmas+0xc4/0x180\n      exit_mmap+0xde/0x3a0\n      mmput+0xa3/0x250\n      do_exit+0x564/0x1470\n      do_group_exit+0x3b/0x100\n      __do_sys_exit_group+0x13/0x20\n      __x64_sys_exit_group+0x16/0x20\n      do_syscall_64+0x34/0x80\n      entry_SYSCALL_64_after_hwframe+0x44/0xae\n    Modules linked in:\n    ---[ end trace e99579b570fe0649 ]---\n    RIP: 0010:release_pages+0x53f/0x840"},{"lang":"es","value":"En el kernel de Linux, se resolvió la siguiente vulnerabilidad: mm/hwpoison: borre MF_COUNT_INCREASED antes de volver a intentar get_any_page() Hulk Robot informó un pánico en put_page_testzero() al probar madvise() con MADV_SOFT_OFFLINE. El ERROR() se activa al volver a intentar get_any_page(). Esto se debe a que mantenemos el indicador MF_COUNT_INCREASED en el segundo intento pero el refcnt no aumenta. página volcada porque: VM_BUG_ON_PAGE(page_ref_count(page) == 0) ------------[ cortar aquí ]------------ ERROR del kernel en include/linux/mm .h:737! código de operación no válido: 0000 [#1] PREEMPT SMP CPU: 5 PID: 2135 Comm: sshd Contaminado: GB 5.16.0-rc6-dirty #373 Nombre de hardware: PC estándar QEMU (i440FX + PIIX, 1996), BIOS 1.13.0- 1ubuntu1.1 01/04/2014 RIP: release_pages+0x53f/0x840 Seguimiento de llamadas: free_pages_and_swap_cache+0x64/0x80 tlb_flush_mmu+0x6f/0x220 unmap_page_range+0xe6c/0x12c0 unmap_single_vma+0x90/0x170 unmap _vmas+0xc4/0x180 salida_mmap+0xde/0x3a0 mmput+ 0xa3/0x250 do_exit+0x564/0x1470 do_group_exit+0x3b/0x100 __do_sys_exit_group+0x13/0x20 __x64_sys_exit_group+0x16/0x20 do_syscall_64+0x34/0x80 Entry_SYSCALL_64_after_hwframe+ 0x44/0xae Módulos vinculados en: ---[ end trace e99579b570fe0649 ]--- RIP: 0010:páginas_de_liberación+0x53f/0x840"}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-noinfo"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.10.89","matchCriteriaId":"205A941A-BAE7-4625-8AE4-C40185E63375"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.12","matchCriteriaId":"732BA914-7B3B-43CD-857F-8119106F6F71"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*","matchCriteriaId":"357AA433-37E8-4323-BFB2-3038D6E4B414"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:*","matchCriteriaId":"A73429BA-C2D9-4D0C-A75F-06A1CA8B3983"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:*","matchCriteriaId":"F621B5E3-E99D-49E7-90B9-EC3B77C95383"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:*","matchCriteriaId":"F7BFDCAA-1650-49AA-8462-407DD593F94F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.16:rc5:*:*:*:*:*:*","matchCriteriaId":"6EC9882F-866D-4ACB-8FBC-213D8D8436C8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.16:rc6:*:*:*:*:*:*","matchCriteriaId":"8A0915FE-A4AA-4C94-B783-CF29D81E7E54"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/1f207076740101fed87074a6bc924dbe806f08a5","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Exploit","Mailing List","Patch"]},{"url":"https://git.kernel.org/stable/c/2a57d83c78f889bf3f54eede908d0643c40d5418","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Exploit","Mailing List","Patch"]},{"url":"https://git.kernel.org/stable/c/c691e7575eff76e563b0199c23ec46bd454f43e3","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Exploit","Mailing List","Patch"]},{"url":"https://git.kernel.org/stable/c/1f207076740101fed87074a6bc924dbe806f08a5","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Mailing List","Patch"]},{"url":"https://git.kernel.org/stable/c/2a57d83c78f889bf3f54eede908d0643c40d5418","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Mailing List","Patch"]},{"url":"https://git.kernel.org/stable/c/c691e7575eff76e563b0199c23ec46bd454f43e3","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Mailing List","Patch"]}]}}]}