{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "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."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/iommu/iommufd/hw_pagetable.c"
               ],
               "versions": [
                  {
                     "version": "8c6eabae3807",
                     "lessThan": "89827a4de802",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8c6eabae3807",
                     "lessThan": "a11dda723c64",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/iommu/iommufd/hw_pagetable.c"
               ],
               "versions": [
                  {
                     "version": "6.8",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.8",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.10",
                     "lessThanOrEqual": "6.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.11",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/89827a4de802765b1ebb401fc1e73a90108c7520"
            },
            {
               "url": "https://git.kernel.org/stable/c/a11dda723c6493bb1853bbc61c093377f96e2d47"
            }
         ],
         "title": "iommufd: Require drivers to supply the cache_invalidate_user ops",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-46824",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}