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CVE-2026-80817 (GCVE-0-2026-80817)

Vulnerability from cvelistv5 – Published: 2026-09-04 15:13 – Updated: 2026-09-04 15:13
VLAI
Title
iommu/iommufd: Fix NULL pointer deref in iommufd_ioas_change_process when racing with iopt_map_file_pages
Summary
In the Linux kernel, the following vulnerability has been resolved: iommu/iommufd: Fix NULL pointer deref in iommufd_ioas_change_process when racing with iopt_map_file_pages iommufd_ioas_change_process() iterates every IOAS area while only holding every IOAS iova_rwsem, so it assumes every area has a non-NULL pages pointer. That assumption can be false when it runs concurrently with iopt_map_file_pages(). iopt_map_pages() executes in two phases. It first creates the area and inserts it into the interval tree under iova_rwsem, with area->pages still NULL. It then drops iova_rwsem and later fills area->pages under domains_rwsem. This leaves a window between area creation and area->pages fill where a concurrent iommufd_ioas_change_process() can observe the area and dereference a NULL area->pages pointer, leading to a NULL pointer dereference: BUG: kernel NULL pointer dereference, address: 00000000000000c0 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 4b655067 P4D 4b655067 PUD 0 Oops: Oops: 0000 [#1] SMP NOPTI CPU: 0 UID: 0 PID: 11841 Comm: syz.1.628 Not tainted 7.1.0 #3 PREEMPT(full) Hardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:iommufd_ioas_change_process+0x419/0xd50 drivers/iommu/iommufd/ioas.c:538 Code: 48 89 c3 48 85 c0 0f 84 cc 00 00 00 e8 10 f5 cb fd 48 8d 7b 68 e8 a7 b5 eb fd 48 8b 6b 68 48 8d bd c0 00 00 00 e8 17 b2 eb fd <8b> ad c0 00 00 00 bf 01 00 00 00 89 ee e8 85 ef cb fd 83 fd 01 74 RSP: 0018:ffffc90015c17d28 EFLAGS: 00010246 RAX: ffff8880186d5328 RBX: ffff88801d25e240 RCX: 0000000080000000 RDX: 00000000000002d7 RSI: ffffffff83ba9e10 RDI: 00000000000000c0 RBP: 0000000000000000 R08: ffffffff8e781eb8 R09: 0000000000000000 R10: 00000000000000c0 R11: ffffffff83ba9e29 R12: ffff88802e216008 R13: ffff88802e216000 R14: 0000000000000001 R15: 0000000000000000 FS: 00007f4aea3f66c0(0000) GS:ffff8880b1fa1000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000c0 CR3: 000000004b75c000 CR4: 0000000000350ef0 Call Trace: <TASK> iommufd_fops_ioctl+0x287/0x400 drivers/iommu/iommufd/main.c:533 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x120/0x170 fs/ioctl.c:583 x64_sys_call+0x1092/0x1fb0 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x10a/0x680 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4aec1a82bd Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4aea3f6018 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4aec436090 RCX: 00007f4aec1a82bd RDX: 0000200000000180 RSI: 0000000000003b92 RDI: 0000000000000003 RBP: 00007f4aec250295 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4aec436128 R14: 00007f4aec436090 R15: 00007ffd04ef23e0 </TASK> Modules linked in: CR2: 00000000000000c0 ---[ end trace 0000000000000000 ]--- RIP: 0010:iommufd_ioas_change_process+0x419/0xd50 drivers/iommu/iommufd/ioas.c:538 Code: 48 89 c3 48 85 c0 0f 84 cc 00 00 00 e8 10 f5 cb fd 48 8d 7b 68 e8 a7 b5 eb fd 48 8b 6b 68 48 8d bd c0 00 00 00 e8 17 b2 eb fd <8b> ad c0 00 00 00 bf 01 00 00 00 89 ee e8 85 ef cb fd 83 fd 01 74 RSP: 0018:ffffc90015c17d28 EFLAGS: 00010246 RAX: ffff8880186d5328 RBX: ffff88801d25e240 RCX: 0000000080000000 RDX: 00000000000002d7 RSI: ffffffff83ba9e10 RDI: 00000000000000c0 RBP: 0000000000000000 R08: ffffffff8e781eb8 R09: 0000000000000000 R10: 00000000000000c0 R11: ffffffff83ba9e29 R12: ffff88802e216008 R13: ffff88802e216000 R14: 0000000000000001 R15: 0000000000000000 FS: 00007f4aea3f66c0(000 ---truncated---
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 829ed626499c11c9d11c65e93febc1e0da7cd61b , < 7596354148c5aa12dfaa17992d1aef1aa2ea831a (git)
Affected: 829ed626499c11c9d11c65e93febc1e0da7cd61b , < d9635e2507dc8260b9ba9992a4198e84f9340a15 (git)
Affected: 829ed626499c11c9d11c65e93febc1e0da7cd61b , < ffe6d379be20df013e19a4c63dd80bc6b683106d (git)
Affected: 829ed626499c11c9d11c65e93febc1e0da7cd61b , < d616de490ec0242dcf78f02f1adf7baa035c4d0d (git)
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Linux Linux Affected: 6.13
Unaffected: 0 , < 6.13 (semver)
Unaffected: 6.18.47 , ≤ 6.18.* (semver)
Unaffected: 7.1.11 , ≤ 7.1.* (semver)
Unaffected: 7.2.1 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/iommufd/ioas.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7596354148c5aa12dfaa17992d1aef1aa2ea831a",
              "status": "affected",
              "version": "829ed626499c11c9d11c65e93febc1e0da7cd61b",
              "versionType": "git"
            },
            {
              "lessThan": "d9635e2507dc8260b9ba9992a4198e84f9340a15",
              "status": "affected",
              "version": "829ed626499c11c9d11c65e93febc1e0da7cd61b",
              "versionType": "git"
            },
            {
              "lessThan": "ffe6d379be20df013e19a4c63dd80bc6b683106d",
              "status": "affected",
              "version": "829ed626499c11c9d11c65e93febc1e0da7cd61b",
              "versionType": "git"
            },
            {
              "lessThan": "d616de490ec0242dcf78f02f1adf7baa035c4d0d",
              "status": "affected",
              "version": "829ed626499c11c9d11c65e93febc1e0da7cd61b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/iommufd/ioas.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "lessThan": "6.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.47",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.47",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.11",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.1",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/iommufd: Fix NULL pointer deref in iommufd_ioas_change_process when racing with iopt_map_file_pages\n\niommufd_ioas_change_process() iterates every IOAS area while only\nholding every IOAS iova_rwsem, so it assumes every area has a non-NULL\npages pointer. That assumption can be false when it runs concurrently\nwith iopt_map_file_pages().\n\niopt_map_pages() executes in two phases. It first creates the area and\ninserts it into the interval tree under iova_rwsem, with area-\u003epages\nstill NULL. It then drops iova_rwsem and later fills area-\u003epages\nunder domains_rwsem. This leaves a window between area creation and\narea-\u003epages fill where a concurrent iommufd_ioas_change_process()\ncan observe the area and dereference a NULL area-\u003epages pointer,\nleading to a NULL pointer dereference:\n\nBUG: kernel NULL pointer dereference, address: 00000000000000c0\n#PF: supervisor read access in kernel mode\n#PF: error_code(0x0000) - not-present page\nPGD 4b655067 P4D 4b655067 PUD 0\nOops: Oops: 0000 [#1] SMP NOPTI\nCPU: 0 UID: 0 PID: 11841 Comm: syz.1.628 Not tainted 7.1.0 #3 PREEMPT(full)\nHardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\nRIP: 0010:iommufd_ioas_change_process+0x419/0xd50 drivers/iommu/iommufd/ioas.c:538\nCode: 48 89 c3 48 85 c0 0f 84 cc 00 00 00 e8 10 f5 cb fd 48 8d 7b 68 e8 a7 b5 eb fd 48 8b 6b 68 48 8d bd c0 00 00 00 e8 17 b2 eb fd \u003c8b\u003e ad c0 00 00 00 bf 01 00 00 00 89 ee e8 85 ef cb fd 83 fd 01 74\nRSP: 0018:ffffc90015c17d28 EFLAGS: 00010246\nRAX: ffff8880186d5328 RBX: ffff88801d25e240 RCX: 0000000080000000\nRDX: 00000000000002d7 RSI: ffffffff83ba9e10 RDI: 00000000000000c0\nRBP: 0000000000000000 R08: ffffffff8e781eb8 R09: 0000000000000000\nR10: 00000000000000c0 R11: ffffffff83ba9e29 R12: ffff88802e216008\nR13: ffff88802e216000 R14: 0000000000000001 R15: 0000000000000000\nFS:  00007f4aea3f66c0(0000) GS:ffff8880b1fa1000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000000000c0 CR3: 000000004b75c000 CR4: 0000000000350ef0\nCall Trace:\n \u003cTASK\u003e\n iommufd_fops_ioctl+0x287/0x400 drivers/iommu/iommufd/main.c:533\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:597 [inline]\n __se_sys_ioctl fs/ioctl.c:583 [inline]\n __x64_sys_ioctl+0x120/0x170 fs/ioctl.c:583\n x64_sys_call+0x1092/0x1fb0 arch/x86/include/generated/asm/syscalls_64.h:17\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0x10a/0x680 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f4aec1a82bd\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f4aea3f6018 EFLAGS: 00000246 ORIG_RAX: 0000000000000010\nRAX: ffffffffffffffda RBX: 00007f4aec436090 RCX: 00007f4aec1a82bd\nRDX: 0000200000000180 RSI: 0000000000003b92 RDI: 0000000000000003\nRBP: 00007f4aec250295 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 00007f4aec436128 R14: 00007f4aec436090 R15: 00007ffd04ef23e0\n \u003c/TASK\u003e\nModules linked in:\nCR2: 00000000000000c0\n---[ end trace 0000000000000000 ]---\nRIP: 0010:iommufd_ioas_change_process+0x419/0xd50 drivers/iommu/iommufd/ioas.c:538\nCode: 48 89 c3 48 85 c0 0f 84 cc 00 00 00 e8 10 f5 cb fd 48 8d 7b 68 e8 a7 b5 eb fd 48 8b 6b 68 48 8d bd c0 00 00 00 e8 17 b2 eb fd \u003c8b\u003e ad c0 00 00 00 bf 01 00 00 00 89 ee e8 85 ef cb fd 83 fd 01 74\nRSP: 0018:ffffc90015c17d28 EFLAGS: 00010246\nRAX: ffff8880186d5328 RBX: ffff88801d25e240 RCX: 0000000080000000\nRDX: 00000000000002d7 RSI: ffffffff83ba9e10 RDI: 00000000000000c0\nRBP: 0000000000000000 R08: ffffffff8e781eb8 R09: 0000000000000000\nR10: 00000000000000c0 R11: ffffffff83ba9e29 R12: ffff88802e216008\nR13: ffff88802e216000 R14: 0000000000000001 R15: 0000000000000000\nFS:  00007f4aea3f66c0(000\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-04T15:13:38.303Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7596354148c5aa12dfaa17992d1aef1aa2ea831a"
        },
        {
          "url": "https://git.kernel.org/stable/c/d9635e2507dc8260b9ba9992a4198e84f9340a15"
        },
        {
          "url": "https://git.kernel.org/stable/c/ffe6d379be20df013e19a4c63dd80bc6b683106d"
        },
        {
          "url": "https://git.kernel.org/stable/c/d616de490ec0242dcf78f02f1adf7baa035c4d0d"
        }
      ],
      "title": "iommu/iommufd: Fix NULL pointer deref in iommufd_ioas_change_process when racing with iopt_map_file_pages",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80817",
    "datePublished": "2026-09-04T15:13:38.303Z",
    "dateReserved": "2026-08-26T14:34:25.795Z",
    "dateUpdated": "2026-09-04T15:13:38.303Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-80817",
      "date": "2026-09-15",
      "epss": "0.00168",
      "percentile": "0.06368"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-80817\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-09-04T16:18:09.303\",\"lastModified\":\"2026-09-04T16:18:09.303\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\niommu/iommufd: Fix NULL pointer deref in iommufd_ioas_change_process when racing with iopt_map_file_pages\\n\\niommufd_ioas_change_process() iterates every IOAS area while only\\nholding every IOAS iova_rwsem, so it assumes every area has a non-NULL\\npages pointer. That assumption can be false when it runs concurrently\\nwith iopt_map_file_pages().\\n\\niopt_map_pages() executes in two phases. It first creates the area and\\ninserts it into the interval tree under iova_rwsem, with area-\u003epages\\nstill NULL. It then drops iova_rwsem and later fills area-\u003epages\\nunder domains_rwsem. This leaves a window between area creation and\\narea-\u003epages fill where a concurrent iommufd_ioas_change_process()\\ncan observe the area and dereference a NULL area-\u003epages pointer,\\nleading to a NULL pointer dereference:\\n\\nBUG: kernel NULL pointer dereference, address: 00000000000000c0\\n#PF: supervisor read access in kernel mode\\n#PF: error_code(0x0000) - not-present page\\nPGD 4b655067 P4D 4b655067 PUD 0\\nOops: Oops: 0000 [#1] SMP NOPTI\\nCPU: 0 UID: 0 PID: 11841 Comm: syz.1.628 Not tainted 7.1.0 #3 PREEMPT(full)\\nHardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\\nRIP: 0010:iommufd_ioas_change_process+0x419/0xd50 drivers/iommu/iommufd/ioas.c:538\\nCode: 48 89 c3 48 85 c0 0f 84 cc 00 00 00 e8 10 f5 cb fd 48 8d 7b 68 e8 a7 b5 eb fd 48 8b 6b 68 48 8d bd c0 00 00 00 e8 17 b2 eb fd \u003c8b\u003e ad c0 00 00 00 bf 01 00 00 00 89 ee e8 85 ef cb fd 83 fd 01 74\\nRSP: 0018:ffffc90015c17d28 EFLAGS: 00010246\\nRAX: ffff8880186d5328 RBX: ffff88801d25e240 RCX: 0000000080000000\\nRDX: 00000000000002d7 RSI: ffffffff83ba9e10 RDI: 00000000000000c0\\nRBP: 0000000000000000 R08: ffffffff8e781eb8 R09: 0000000000000000\\nR10: 00000000000000c0 R11: ffffffff83ba9e29 R12: ffff88802e216008\\nR13: ffff88802e216000 R14: 0000000000000001 R15: 0000000000000000\\nFS:  00007f4aea3f66c0(0000) GS:ffff8880b1fa1000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 00000000000000c0 CR3: 000000004b75c000 CR4: 0000000000350ef0\\nCall Trace:\\n \u003cTASK\u003e\\n iommufd_fops_ioctl+0x287/0x400 drivers/iommu/iommufd/main.c:533\\n vfs_ioctl fs/ioctl.c:51 [inline]\\n __do_sys_ioctl fs/ioctl.c:597 [inline]\\n __se_sys_ioctl fs/ioctl.c:583 [inline]\\n __x64_sys_ioctl+0x120/0x170 fs/ioctl.c:583\\n x64_sys_call+0x1092/0x1fb0 arch/x86/include/generated/asm/syscalls_64.h:17\\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\\n do_syscall_64+0x10a/0x680 arch/x86/entry/syscall_64.c:94\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\nRIP: 0033:0x7f4aec1a82bd\\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48\\nRSP: 002b:00007f4aea3f6018 EFLAGS: 00000246 ORIG_RAX: 0000000000000010\\nRAX: ffffffffffffffda RBX: 00007f4aec436090 RCX: 00007f4aec1a82bd\\nRDX: 0000200000000180 RSI: 0000000000003b92 RDI: 0000000000000003\\nRBP: 00007f4aec250295 R08: 0000000000000000 R09: 0000000000000000\\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\\nR13: 00007f4aec436128 R14: 00007f4aec436090 R15: 00007ffd04ef23e0\\n \u003c/TASK\u003e\\nModules linked in:\\nCR2: 00000000000000c0\\n---[ end trace 0000000000000000 ]---\\nRIP: 0010:iommufd_ioas_change_process+0x419/0xd50 drivers/iommu/iommufd/ioas.c:538\\nCode: 48 89 c3 48 85 c0 0f 84 cc 00 00 00 e8 10 f5 cb fd 48 8d 7b 68 e8 a7 b5 eb fd 48 8b 6b 68 48 8d bd c0 00 00 00 e8 17 b2 eb fd \u003c8b\u003e ad c0 00 00 00 bf 01 00 00 00 89 ee e8 85 ef cb fd 83 fd 01 74\\nRSP: 0018:ffffc90015c17d28 EFLAGS: 00010246\\nRAX: ffff8880186d5328 RBX: ffff88801d25e240 RCX: 0000000080000000\\nRDX: 00000000000002d7 RSI: ffffffff83ba9e10 RDI: 00000000000000c0\\nRBP: 0000000000000000 R08: ffffffff8e781eb8 R09: 0000000000000000\\nR10: 00000000000000c0 R11: ffffffff83ba9e29 R12: ffff88802e216008\\nR13: ffff88802e216000 R14: 0000000000000001 R15: 0000000000000000\\nFS:  00007f4aea3f66c0(000\\n---truncated---\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/iommu/iommufd/ioas.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"829ed626499c11c9d11c65e93febc1e0da7cd61b\",\"lessThan\":\"7596354148c5aa12dfaa17992d1aef1aa2ea831a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"829ed626499c11c9d11c65e93febc1e0da7cd61b\",\"lessThan\":\"d9635e2507dc8260b9ba9992a4198e84f9340a15\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"829ed626499c11c9d11c65e93febc1e0da7cd61b\",\"lessThan\":\"ffe6d379be20df013e19a4c63dd80bc6b683106d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"829ed626499c11c9d11c65e93febc1e0da7cd61b\",\"lessThan\":\"d616de490ec0242dcf78f02f1adf7baa035c4d0d\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/iommu/iommufd/ioas.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.13\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.13\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.47\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.11\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2.1\",\"lessThanOrEqual\":\"7.2.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.3-rc1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/7596354148c5aa12dfaa17992d1aef1aa2ea831a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d616de490ec0242dcf78f02f1adf7baa035c4d0d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d9635e2507dc8260b9ba9992a4198e84f9340a15\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ffe6d379be20df013e19a4c63dd80bc6b683106d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-07T16:19:40Z",
      "cve": "CVE-2026-80817",
      "id": "CVE-2026-80817",
      "initial_release_date": "2026-09-05T00:26:47Z",
      "product_status:known_not_affected": "353",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-80817",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-80817.json",
      "version": "4"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.