{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-12T21:11:05.746","vulnerabilities":[{"cve":{"id":"CVE-2023-52582","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-03-02T22:15:49.770","lastModified":"2025-01-16T17:33:18.490","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Only call folio_start_fscache() one time for each folio\n\nIf a network filesystem using netfs implements a clamp_length()\nfunction, it can set subrequest lengths smaller than a page size.\n\nWhen we loop through the folios in netfs_rreq_unlock_folios() to\nset any folios to be written back, we need to make sure we only\ncall folio_start_fscache() once for each folio.\n\nOtherwise, this simple testcase:\n\n  mount -o fsc,rsize=1024,wsize=1024 127.0.0.1:/export /mnt/nfs\n  dd if=/dev/zero of=/mnt/nfs/file.bin bs=4096 count=1\n  1+0 records in\n  1+0 records out\n  4096 bytes (4.1 kB, 4.0 KiB) copied, 0.0126359 s, 324 kB/s\n  echo 3 > /proc/sys/vm/drop_caches\n  cat /mnt/nfs/file.bin > /dev/null\n\nwill trigger an oops similar to the following:\n\n  page dumped because: VM_BUG_ON_FOLIO(folio_test_private_2(folio))\n  ------------[ cut here ]------------\n  kernel BUG at include/linux/netfs.h:44!\n  ...\n  CPU: 5 PID: 134 Comm: kworker/u16:5 Kdump: loaded Not tainted 6.4.0-rc5\n  ...\n  RIP: 0010:netfs_rreq_unlock_folios+0x68e/0x730 [netfs]\n  ...\n  Call Trace:\n    netfs_rreq_assess+0x497/0x660 [netfs]\n    netfs_subreq_terminated+0x32b/0x610 [netfs]\n    nfs_netfs_read_completion+0x14e/0x1a0 [nfs]\n    nfs_read_completion+0x2f9/0x330 [nfs]\n    rpc_free_task+0x72/0xa0 [sunrpc]\n    rpc_async_release+0x46/0x70 [sunrpc]\n    process_one_work+0x3bd/0x710\n    worker_thread+0x89/0x610\n    kthread+0x181/0x1c0\n    ret_from_fork+0x29/0x50"},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfs: solo llame a folio_start_fscache() una vez para cada folio. Si un sistema de archivos de red que utiliza netfs implementa una función abrazadera_longitud(), puede establecer longitudes de subsolicitud más pequeñas que el tamaño de una página. Cuando recorremos las publicaciones en netfs_rreq_unlock_folios() para configurar las publicaciones que se reescribirán, debemos asegurarnos de llamar solo a folio_start_fscache() una vez para cada publicación. De lo contrario, este caso de prueba simple: mount -o fsc,rsize=1024,wsize=1024 127.0.0.1:/export /mnt/nfs dd if=/dev/zero of=/mnt/nfs/file.bin bs=4096 count= 1 1+0 registros en 1+0 registros en salida 4096 bytes (4,1 kB, 4,0 KiB) copiados, 0,0126359 s, 324 kB/s echo 3 > /proc/sys/vm/drop_caches cat /mnt/nfs/file.bin > /dev/null desencadenará un error similar al siguiente: página volcada porque: VM_BUG_ON_FOLIO(folio_test_private_2(folio)) ------------[ cortar aquí ]---------- -- ¡ERROR del kernel en include/linux/netfs.h:44! ... CPU: 5 PID: 134 Comm: kworker/u16:5 Kdump: cargado No contaminado 6.4.0-rc5 ... RIP: 0010:netfs_rreq_unlock_folios+0x68e/0x730 [netfs] ... Seguimiento de llamadas: netfs_rreq_assess+0x497 /0x660 [netfs] netfs_subreq_terminate+0x32b/0x610 [netfs] nfs_netfs_read_completion+0x14e/0x1a0 [nfs] nfs_read_completion+0x2f9/0x330 [nfs] rpc_free_task+0x72/0xa0 [sunrpc] rpc_a sync_release+0x46/0x70 [sunrpc] proceso_one_work+0x3bd/0x710 hilo_trabajador+0x89/0x610 kthread+0x181/0x1c0 ret_from_fork+0x29/0x50"}],"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":"5.13","versionEndExcluding":"6.1.56","matchCriteriaId":"22500F70-0E58-4032-89D2-3152759A8C0A"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.5.6","matchCriteriaId":"870FC772-173A-4A0F-B1AF-7976AD6057D3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:*","matchCriteriaId":"84267A4F-DBC2-444F-B41D-69E15E1BEC97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:*","matchCriteriaId":"FB440208-241C-4246-9A83-C1715C0DAA6C"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/d9f5537479d4ec97ea92ff24e81a517d5772581a","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/df1c357f25d808e30b216188330e708e09e1a412","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/df9950d37df113db59495fa09d060754366a2b7c","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/d9f5537479d4ec97ea92ff24e81a517d5772581a","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/df1c357f25d808e30b216188330e708e09e1a412","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/df9950d37df113db59495fa09d060754366a2b7c","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]}]}}]}