{
   "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: Fix iopt_access_list_id overwrite bug\n\nSyzkaller reported the following WARN_ON:\n  WARNING: CPU: 1 PID: 4738 at drivers/iommu/iommufd/io_pagetable.c:1360\n\n  Call Trace:\n   iommufd_access_change_ioas+0x2fe/0x4e0\n   iommufd_access_destroy_object+0x50/0xb0\n   iommufd_object_remove+0x2a3/0x490\n   iommufd_object_destroy_user\n   iommufd_access_destroy+0x71/0xb0\n   iommufd_test_staccess_release+0x89/0xd0\n   __fput+0x272/0xb50\n   __fput_sync+0x4b/0x60\n   __do_sys_close\n   __se_sys_close\n   __x64_sys_close+0x8b/0x110\n   do_syscall_x64\n\nThe mismatch between the access pointer in the list and the passed-in\npointer is resulting from an overwrite of access->iopt_access_list_id, in\niopt_add_access(). Called from iommufd_access_change_ioas() when\nxa_alloc() succeeds but iopt_calculate_iova_alignment() fails.\n\nAdd a new_id in iopt_add_access() and only update iopt_access_list_id when\nreturning successfully."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/iommu/iommufd/io_pagetable.c"
               ],
               "versions": [
                  {
                     "version": "9227da7816dd",
                     "lessThan": "f1fb745ee0a6",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9227da7816dd",
                     "lessThan": "9526a46cc0c3",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9227da7816dd",
                     "lessThan": "aeb004c0cd69",
                     "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/io_pagetable.c"
               ],
               "versions": [
                  {
                     "version": "6.6",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.6",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.21",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.7.9",
                     "lessThanOrEqual": "6.7.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/f1fb745ee0a6fe43f1d84ec369c7e6af2310fda9"
            },
            {
               "url": "https://git.kernel.org/stable/c/9526a46cc0c378d381560279bea9aa34c84298a0"
            },
            {
               "url": "https://git.kernel.org/stable/c/aeb004c0cd6958e910123a1607634401009c9539"
            }
         ],
         "title": "iommufd: Fix iopt_access_list_id overwrite bug",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-26786",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}