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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": "2026-09-14",
      "epss": "0.00168",
      "percentile": "0.06347"
    },
    "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.