{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-06T18:55:46.347","vulnerabilities":[{"cve":{"id":"CVE-2022-49788","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-05-01T15:16:02.027","lastModified":"2025-11-07T19:32:44.140","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmisc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram()\n\n`struct vmci_event_qp` allocated by qp_notify_peer() contains padding,\nwhich may carry uninitialized data to the userspace, as observed by\nKMSAN:\n\n  BUG: KMSAN: kernel-infoleak in instrument_copy_to_user ./include/linux/instrumented.h:121\n   instrument_copy_to_user ./include/linux/instrumented.h:121\n   _copy_to_user+0x5f/0xb0 lib/usercopy.c:33\n   copy_to_user ./include/linux/uaccess.h:169\n   vmci_host_do_receive_datagram drivers/misc/vmw_vmci/vmci_host.c:431\n   vmci_host_unlocked_ioctl+0x33d/0x43d0 drivers/misc/vmw_vmci/vmci_host.c:925\n   vfs_ioctl fs/ioctl.c:51\n  ...\n\n  Uninit was stored to memory at:\n   kmemdup+0x74/0xb0 mm/util.c:131\n   dg_dispatch_as_host drivers/misc/vmw_vmci/vmci_datagram.c:271\n   vmci_datagram_dispatch+0x4f8/0xfc0 drivers/misc/vmw_vmci/vmci_datagram.c:339\n   qp_notify_peer+0x19a/0x290 drivers/misc/vmw_vmci/vmci_queue_pair.c:1479\n   qp_broker_attach drivers/misc/vmw_vmci/vmci_queue_pair.c:1662\n   qp_broker_alloc+0x2977/0x2f30 drivers/misc/vmw_vmci/vmci_queue_pair.c:1750\n   vmci_qp_broker_alloc+0x96/0xd0 drivers/misc/vmw_vmci/vmci_queue_pair.c:1940\n   vmci_host_do_alloc_queuepair drivers/misc/vmw_vmci/vmci_host.c:488\n   vmci_host_unlocked_ioctl+0x24fd/0x43d0 drivers/misc/vmw_vmci/vmci_host.c:927\n  ...\n\n  Local variable ev created at:\n   qp_notify_peer+0x54/0x290 drivers/misc/vmw_vmci/vmci_queue_pair.c:1456\n   qp_broker_attach drivers/misc/vmw_vmci/vmci_queue_pair.c:1662\n   qp_broker_alloc+0x2977/0x2f30 drivers/misc/vmw_vmci/vmci_queue_pair.c:1750\n\n  Bytes 28-31 of 48 are uninitialized\n  Memory access of size 48 starts at ffff888035155e00\n  Data copied to user address 0000000020000100\n\nUse memset() to prevent the infoleaks.\n\nAlso speculatively fix qp_notify_peer_local(), which may suffer from the\nsame problem."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: misc/vmw_vmci: se corrige una fuga de información en vmci_host_do_receive_datagram() `struct vmci_event_qp` asignado por qp_notify_peer() que contiene relleno, que puede llevar datos no inicializados al espacio de usuario, como lo observó KMSAN: ERROR: KMSAN: fuga de información del kernel en instrument_copy_to_user ./include/linux/instrumented.h:121 instrument_copy_to_user ./include/linux/instrumented.h:121 _copy_to_user+0x5f/0xb0 lib/usercopy.c:33 copy_to_user ./include/linux/uaccess.h:169 vmci_host_do_receive_datagram drivers/misc/vmw_vmci/vmci_host.c:431 vmci_host_unlocked_ioctl+0x33d/0x43d0 drivers/misc/vmw_vmci/vmci_host.c:925 vfs_ioctl fs/ioctl.c:51 ... Uninit se almacenó en la memoria en: kmemdup+0x74/0xb0 mm/util.c:131 dg_dispatch_as_host drivers/misc/vmw_vmci/vmci_datagram.c:271 vmci_datagram_dispatch+0x4f8/0xfc0 drivers/misc/vmw_vmci/vmci_datagram.c:339 qp_notify_peer+0x19a/0x290 drivers/misc/vmw_vmci/vmci_queue_pair.c:1479 qp_broker_attach controladores/misc/vmw_vmci/vmci_queue_pair.c:1662 qp_broker_alloc+0x2977/0x2f30 controladores/misc/vmw_vmci/vmci_queue_pair.c:1750 vmci_qp_broker_alloc+0x96/0xd0 controladores/misc/vmw_vmci/vmci_queue_pair.c:1940 vmci_host_do_alloc_queuepair controladores/misc/vmw_vmci/vmci_host.c:488 vmci_host_unlocked_ioctl+0x24fd/0x43d0 controladores/misc/vmw_vmci/vmci_host.c:927 ... Variable local ev creada en: qp_notify_peer+0x54/0x290 drivers/misc/vmw_vmci/vmci_queue_pair.c:1456 qp_broker_attach drivers/misc/vmw_vmci/vmci_queue_pair.c:1662 qp_broker_alloc+0x2977/0x2f30 drivers/misc/vmw_vmci/vmci_queue_pair.c:1750 Bytes 28-31 de 48 sin inicializar. El acceso a memoria de tamaño 48 comienza en ffff888035155e00. Datos copiados a la dirección de usuario 0000000020000100. Use memset() para evitar las filtraciones de información. También se especula que se debe corregir qp_notify_peer_local(), que podría presentar el mismo problema."}],"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":"CWE-908"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"4.9.334","matchCriteriaId":"CB7523BD-D391-4043-A440-11CB0A08ABC9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"4.14.300","matchCriteriaId":"424802D2-E9E7-48A9-AD6F-DF2227B3D83A"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"4.19.267","matchCriteriaId":"A5C69A12-68E2-400E-9A5A-375A673C8402"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.4.225","matchCriteriaId":"94D21814-3051-4860-AB06-C7880A3D4933"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.156","matchCriteriaId":"E2152F3D-E6D3-405D-B0BE-911B8B6E2EE6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.80","matchCriteriaId":"51BBEF3B-79F5-4D4C-ADBA-F34DA0E2465C"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.0.10","matchCriteriaId":"64F9ADD1-3ADB-4D66-A00F-4A83010B05F0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*","matchCriteriaId":"E7E331DA-1FB0-4DEC-91AC-7DA69D461C11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*","matchCriteriaId":"17F0B248-42CF-4AE6-A469-BB1BAE7F4705"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*","matchCriteriaId":"E2422816-0C14-4B5E-A1E6-A9D776E5C49B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*","matchCriteriaId":"1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*","matchCriteriaId":"35B26BE4-43A6-4A36-A7F6-5B3F572D9186"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/5a275528025ae4bc7e2232866856dfebf84b2fad","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/62634b43d3c4e1bf62fd540196f7081bf0885c0a","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/76c50d77b928a33e5290aaa9fdc10e88254ff8c7","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/7ccf7229b96fadc3a185d1391f814a604c7ef609","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8e2f33c598370bcf828bab4d667d1d38bcd3c57d","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/e5b0d06d9b10f5f43101bd6598b076c347f9295f","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/e7061dd1fef2dfb6458cd521aef27aa66f510d31","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/f04586c2315cfd03d72ad0395705435e7ed07b1a","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}