{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-21T19:13:10.755","vulnerabilities":[{"cve":{"id":"CVE-2024-26875","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-04-17T11:15:09.723","lastModified":"2025-03-21T15:27:19.060","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: pvrusb2: fix uaf in pvr2_context_set_notify\n\n[Syzbot reported]\nBUG: KASAN: slab-use-after-free in pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35\nRead of size 4 at addr ffff888113aeb0d8 by task kworker/1:1/26\n\nCPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 6.8.0-rc1-syzkaller-00046-gf1a27f081c1f #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024\nWorkqueue: usb_hub_wq hub_event\nCall Trace:\n <TASK>\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0xc4/0x620 mm/kasan/report.c:488\n kasan_report+0xda/0x110 mm/kasan/report.c:601\n pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35\n pvr2_context_notify drivers/media/usb/pvrusb2/pvrusb2-context.c:95 [inline]\n pvr2_context_disconnect+0x94/0xb0 drivers/media/usb/pvrusb2/pvrusb2-context.c:272\n\nFreed by task 906:\nkasan_save_stack+0x33/0x50 mm/kasan/common.c:47\nkasan_save_track+0x14/0x30 mm/kasan/common.c:68\nkasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:640\npoison_slab_object mm/kasan/common.c:241 [inline]\n__kasan_slab_free+0x106/0x1b0 mm/kasan/common.c:257\nkasan_slab_free include/linux/kasan.h:184 [inline]\nslab_free_hook mm/slub.c:2121 [inline]\nslab_free mm/slub.c:4299 [inline]\nkfree+0x105/0x340 mm/slub.c:4409\npvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:137 [inline]\npvr2_context_thread_func+0x69d/0x960 drivers/media/usb/pvrusb2/pvrusb2-context.c:158\n\n[Analyze]\nTask A set disconnect_flag = !0, which resulted in Task B's condition being met\nand releasing mp, leading to this issue.\n\n[Fix]\nPlace the disconnect_flag assignment operation after all code in pvr2_context_disconnect()\nto avoid this issue."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: media: pvrusb2: corrige uaf en pvr2_context_set_notify [Syzbot informó] ERROR: KASAN: slab-use-after-free en pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2 -context.c:35 Lectura del tamaño 4 en la dirección ffff888113aeb0d8 por tarea kworker/1:1/26 CPU: 1 PID: 26 Comm: kworker/1:1 No contaminado 6.8.0-rc1-syzkaller-00046-gf1a27f081c1f #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 25/01/2024 Cola de trabajo: usb_hub_wq hub_event Seguimiento de llamadas:  __dump_stack lib/dump_stack.c:88 [en línea] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c :106 print_address_description mm/kasan/report.c:377 [en línea] print_report+0xc4/0x620 mm/kasan/report.c:488 kasan_report+0xda/0x110 mm/kasan/report.c:601 pvr2_context_set_notify+0x2c4/0x310 controladores/ media/usb/pvrusb2/pvrusb2-context.c:35 pvr2_context_notify controladores/media/usb/pvrusb2/pvrusb2-context.c:95 [en línea] pvr2_context_disconnect+0x94/0xb0 controladores/media/usb/pvrusb2/pvrusb2-context.c :272 Liberado por la tarea 906: kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:640 veneno_slab_object mm/kasan/common.c:241 [en línea] __kasan_slab_free+0x106/0x1b0 mm/kasan/common.c:257 kasan_slab_free include/linux/kasan.h:184 [en línea] slab_free_hook mm/slub.c:2121 [en línea] slab_free mm/slub.c:4299 [en línea] kfree+0x105/0x340 mm/slub.c:4409 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:137 [en línea] pvr2_context_thread_func+0x69d/0x960 controladores/medios /usb/pvrusb2/pvrusb2-context.c:158 [Analizar] La tarea A estableció desconectar_flag = !0, lo que resultó en que se cumpliera la condición de la tarea B y se liberara mp, lo que generó este problema. [Solución] Coloque la operación de asignaciónconnect_flag después de todo el código en pvr2_context_disconnect() para evitar este problema."}],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","baseScore":6.4,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":0.5,"impactScore":5.9}]},"weaknesses":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-416"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.26","versionEndExcluding":"4.19.311","matchCriteriaId":"D2F01634-E89B-4E28-864B-7F25D799A56B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.4.273","matchCriteriaId":"620FD8B7-BF03-43E0-951A-0A58461D4C55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.214","matchCriteriaId":"65987874-467B-4D3B-91D6-68A129B34FB8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.153","matchCriteriaId":"ACB69438-845D-4E3C-B114-3140611F9C0B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.83","matchCriteriaId":"121A07F6-F505-4C47-86BF-9BB6CC7B6C19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.23","matchCriteriaId":"E00814DC-0BA7-431A-9926-80FEB4A96C68"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.7.11","matchCriteriaId":"9B95D3A6-E162-47D5-ABFC-F3FA74FA7CFD"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.8.2","matchCriteriaId":"543A75FF-25B8-4046-A514-1EA8EDD87AB1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/0a0b79ea55de8514e1750884e5fec77f9fdd01ee","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/3a1ec89708d2e57e2712f46241282961b1a7a475","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/40cd818fae875c424a8335009db33c7b5a07de3a","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8e60b99f6b7ccb3badeb512f5eb613ad45904592","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/ab896d93fd6a2cd1afeb034c3cc9226cb499209f","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/d29ed08964cec8b9729bc55c7bb23f679d7a18fb","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/eaa410e05bdf562c90b23cdf2d9327f9c4625e16","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/eb6e9dce979c08210ff7249e5e0eceb8991bfcd7","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/ed8000e1e8e9684ab6c30cf2b526c0cea039929c","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/0a0b79ea55de8514e1750884e5fec77f9fdd01ee","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/3a1ec89708d2e57e2712f46241282961b1a7a475","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/40cd818fae875c424a8335009db33c7b5a07de3a","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8e60b99f6b7ccb3badeb512f5eb613ad45904592","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/ab896d93fd6a2cd1afeb034c3cc9226cb499209f","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/d29ed08964cec8b9729bc55c7bb23f679d7a18fb","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/eaa410e05bdf562c90b23cdf2d9327f9c4625e16","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/eb6e9dce979c08210ff7249e5e0eceb8991bfcd7","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/ed8000e1e8e9684ab6c30cf2b526c0cea039929c","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"]}]}}]}