{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-18T22:23:51.636","vulnerabilities":[{"cve":{"id":"CVE-2024-46824","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-09-27T13:15:14.960","lastModified":"2024-10-02T14:29:08.417","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niommufd: Require drivers to supply the cache_invalidate_user ops\n\nIf drivers don't do this then iommufd will oops invalidation ioctls with\nsomething like:\n\n  Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n  Mem abort info:\n    ESR = 0x0000000086000004\n    EC = 0x21: IABT (current EL), IL = 32 bits\n    SET = 0, FnV = 0\n    EA = 0, S1PTW = 0\n    FSC = 0x04: level 0 translation fault\n  user pgtable: 4k pages, 48-bit VAs, pgdp=0000000101059000\n  [0000000000000000] pgd=0000000000000000, p4d=0000000000000000\n  Internal error: Oops: 0000000086000004 [#1] PREEMPT SMP\n  Modules linked in:\n  CPU: 2 PID: 371 Comm: qemu-system-aar Not tainted 6.8.0-rc7-gde77230ac23a #9\n  Hardware name: linux,dummy-virt (DT)\n  pstate: 81400809 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=-c)\n  pc : 0x0\n  lr : iommufd_hwpt_invalidate+0xa4/0x204\n  sp : ffff800080f3bcc0\n  x29: ffff800080f3bcf0 x28: ffff0000c369b300 x27: 0000000000000000\n  x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000\n  x23: 0000000000000000 x22: 00000000c1e334a0 x21: ffff0000c1e334a0\n  x20: ffff800080f3bd38 x19: ffff800080f3bd58 x18: 0000000000000000\n  x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffff8240d6d8\n  x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\n  x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000\n  x8 : 0000001000000002 x7 : 0000fffeac1ec950 x6 : 0000000000000000\n  x5 : ffff800080f3bd78 x4 : 0000000000000003 x3 : 0000000000000002\n  x2 : 0000000000000000 x1 : ffff800080f3bcc8 x0 : ffff0000c6034d80\n  Call trace:\n   0x0\n   iommufd_fops_ioctl+0x154/0x274\n   __arm64_sys_ioctl+0xac/0xf0\n   invoke_syscall+0x48/0x110\n   el0_svc_common.constprop.0+0x40/0xe0\n   do_el0_svc+0x1c/0x28\n   el0_svc+0x34/0xb4\n   el0t_64_sync_handler+0x120/0x12c\n   el0t_64_sync+0x190/0x194\n\nAll existing drivers implement this op for nesting, this is mostly a\nbisection aid."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iommufd: Requiere que los controladores proporcionen las operaciones cache_invalidate_user Si los controladores no hacen esto, iommufd oops invalidará los ioctls con algo como: No se puede manejar la desreferencia del puntero NULL del kernel en la dirección virtual 0000000000000000 Información de aborto de memoria: ESR = 0x0000000086000004 EC = 0x21: IABT (EL actual), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: error de traducción de nivel 0 pgtable de usuario: 4k páginas, VA de 48 bits, pgdp=0000000101059000 [000000000000000] pgd=0000000000000000, p4d=0000000000000000 Error interno: Oops: 0000000086000004 [#1] PREEMPT Módulos SMP vinculados: CPU: 2 PID: 371 Comm: qemu-system-aar No contaminado 6.8.0-rc7-gde77230ac23a #9 Nombre del hardware: linux,dummy-virt (DT) pstate: 81400809 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=-c) pc : 0x0 lr : iommufd_hwpt_invalidate+0xa4/0x204 sp : ffff800080f3bcc0 x29: ffff800080f3bcf0 x28: ffff0000c369b300 x27: 0000000000000000 x26: 0000000000000000 x25: 00000000000000000 x24: 0000000000000000 x23: 000000000000000 x22: 00000000c1e334a0 x21: ffff0000c1e334a0 x20: ffff800080f3bd38 x19: ffff800080f3bd58 x18: 0000000000000000 x17: 00000000000000000 x16: 0000000000000000 x15: 0000ffff8240d6d8 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 000000000000000 x9: 000000000000000 x8: 0000001000000002 x7: 0000fffeac1ec950 x6: 0000000000000000 x5: ffff800080f3bd78 x4: 0000000000000003 x3: 0000000000000002 x2: 0000000000000000 x1: ffff800080f3bcc8 x0: ffff0000c6034d80 Rastreo de llamadas: 0x0 iommufd_fops_ioctl+0x154/0x274 __arm64_sys_ioctl+0xac/0xf0 anybody_syscall+0x48/0x110 el0_svc_common.constprop.0+0x40/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x34/0xb4 el0t_64_sync_handler+0x120/0x12c el0t_64_sync+0x190/0x194 Todos los controladores existentes implementan esta operación para anidamiento, esto es principalmente una ayuda de bisección."}],"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-476"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.10.10","matchCriteriaId":"4FAFFECB-D55B-4130-801C-AE52B8A6B1BA"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/89827a4de802765b1ebb401fc1e73a90108c7520","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/a11dda723c6493bb1853bbc61c093377f96e2d47","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}