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CVE-2026-43449 (GCVE-0-2026-43449)

Vulnerability from cvelistv5 – Published: 2026-05-08 14:22 – Updated: 2026-05-23 16:07
VLAI
Title
nvme-pci: Fix slab-out-of-bounds in nvme_dbbuf_set
Summary
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: Fix slab-out-of-bounds in nvme_dbbuf_set dev->online_queues is a count incremented in nvme_init_queue. Thus, valid indices are 0 through dev->online_queues − 1. This patch fixes the loop condition to ensure the index stays within the valid range. Index 0 is excluded because it is the admin queue. KASAN splat: ================================================================== BUG: KASAN: slab-out-of-bounds in nvme_dbbuf_free drivers/nvme/host/pci.c:377 [inline] BUG: KASAN: slab-out-of-bounds in nvme_dbbuf_set+0x39c/0x400 drivers/nvme/host/pci.c:404 Read of size 2 at addr ffff88800592a574 by task kworker/u8:5/74 CPU: 0 UID: 0 PID: 74 Comm: kworker/u8:5 Not tainted 6.19.0-dirty #10 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 Workqueue: nvme-reset-wq nvme_reset_work Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0xea/0x150 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xce/0x5d0 mm/kasan/report.c:482 kasan_report+0xdc/0x110 mm/kasan/report.c:595 __asan_report_load2_noabort+0x18/0x20 mm/kasan/report_generic.c:379 nvme_dbbuf_free drivers/nvme/host/pci.c:377 [inline] nvme_dbbuf_set+0x39c/0x400 drivers/nvme/host/pci.c:404 nvme_reset_work+0x36b/0x8c0 drivers/nvme/host/pci.c:3252 process_one_work+0x956/0x1aa0 kernel/workqueue.c:3257 process_scheduled_works kernel/workqueue.c:3340 [inline] worker_thread+0x65c/0xe60 kernel/workqueue.c:3421 kthread+0x41a/0x930 kernel/kthread.c:463 ret_from_fork+0x6f8/0x8c0 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 </TASK> Allocated by task 34 on cpu 1 at 4.241550s: kasan_save_stack+0x2c/0x60 mm/kasan/common.c:57 kasan_save_track+0x1c/0x70 mm/kasan/common.c:78 kasan_save_alloc_info+0x3c/0x50 mm/kasan/generic.c:570 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0xb5/0xc0 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __do_kmalloc_node mm/slub.c:5657 [inline] __kmalloc_node_noprof+0x2bf/0x8d0 mm/slub.c:5663 kmalloc_array_node_noprof include/linux/slab.h:1075 [inline] nvme_pci_alloc_dev drivers/nvme/host/pci.c:3479 [inline] nvme_probe+0x2f1/0x1820 drivers/nvme/host/pci.c:3534 local_pci_probe+0xef/0x1c0 drivers/pci/pci-driver.c:324 pci_call_probe drivers/pci/pci-driver.c:392 [inline] __pci_device_probe drivers/pci/pci-driver.c:417 [inline] pci_device_probe+0x743/0x920 drivers/pci/pci-driver.c:451 call_driver_probe drivers/base/dd.c:583 [inline] really_probe+0x29b/0xb70 drivers/base/dd.c:661 __driver_probe_device+0x3b0/0x4a0 drivers/base/dd.c:803 driver_probe_device+0x56/0x1f0 drivers/base/dd.c:833 __driver_attach_async_helper+0x155/0x340 drivers/base/dd.c:1159 async_run_entry_fn+0xa6/0x4b0 kernel/async.c:129 process_one_work+0x956/0x1aa0 kernel/workqueue.c:3257 process_scheduled_works kernel/workqueue.c:3340 [inline] worker_thread+0x65c/0xe60 kernel/workqueue.c:3421 kthread+0x41a/0x930 kernel/kthread.c:463 ret_from_fork+0x6f8/0x8c0 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 The buggy address belongs to the object at ffff88800592a000 which belongs to the cache kmalloc-2k of size 2048 The buggy address is located 244 bytes to the right of allocated 1152-byte region [ffff88800592a000, ffff88800592a480) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5928 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0xfffffc0000040(head|node=0|zone=1|lastcpupid=0x1fffff) page_type: f5(slab) raw: 000fffffc0000040 ffff888001042000 0000000000000000 dead000000000001 raw: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000 head: 000fffffc0000040 ffff888001042000 00000 ---truncated---
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0f0d2c876c96d4908a9ef40959a44bec21bdd6cf , < 2b9d605c3f0d3262142f196249cd3bd58c857c71 (git)
Affected: 0f0d2c876c96d4908a9ef40959a44bec21bdd6cf , < 86183d550559e45e07059bbdf17331fea469e38c (git)
Affected: 0f0d2c876c96d4908a9ef40959a44bec21bdd6cf , < d7990c936e25f484b61a5adeeadc1d290a9fd16e (git)
Affected: 0f0d2c876c96d4908a9ef40959a44bec21bdd6cf , < 83e6edd6358326c9c2de31a54bb4a1ec50703f1f (git)
Affected: 0f0d2c876c96d4908a9ef40959a44bec21bdd6cf , < 50bad78f03a02d3c0f228edf9912b494d3e7acb9 (git)
Affected: 0f0d2c876c96d4908a9ef40959a44bec21bdd6cf , < 328c551f0cc81ee776b186b86cc6e5253bb6fda7 (git)
Affected: 0f0d2c876c96d4908a9ef40959a44bec21bdd6cf , < 78279d2d74c58a0ed64e43cf601a02649771182e (git)
Affected: 0f0d2c876c96d4908a9ef40959a44bec21bdd6cf , < b4e78f1427c7d6859229ae9616df54e1fc05a516 (git)
Affected: 930bb3092fe606baa23d57ae59b70b291d67a8af (git)
Affected: fd1c1de8c4589fdd528733bfd01ed0c5f3f69204 (git)
Affected: 4940816604e3ce7e05e8df297773ee86c0476d48 (git)
Affected: 55a3b1ad694631cc2698b5500ac5865d7d0f064e (git)
Affected: 4.14.210 , < 4.15 (semver)
Affected: 4.19.161 , < 4.20 (semver)
Affected: 5.4.81 , < 5.5 (semver)
Affected: 5.9.12 , < 5.10 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.253 , ≤ 5.10.* (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.167 , ≤ 6.1.* (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.78 , ≤ 6.12.* (semver)
Unaffected: 6.18.19 , ≤ 6.18.* (semver)
Unaffected: 6.19.9 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-pci: Fix slab-out-of-bounds in nvme_dbbuf_set\n\ndev-\u003eonline_queues is a count incremented in nvme_init_queue. Thus,\nvalid indices are 0 through dev-\u003eonline_queues \u2212 1.\n\nThis patch fixes the loop condition to ensure the index stays within the\nvalid range. Index 0 is excluded because it is the admin queue.\n\nKASAN splat:\n\n==================================================================\nBUG: KASAN: slab-out-of-bounds in nvme_dbbuf_free drivers/nvme/host/pci.c:377 [inline]\nBUG: KASAN: slab-out-of-bounds in nvme_dbbuf_set+0x39c/0x400 drivers/nvme/host/pci.c:404\nRead of size 2 at addr ffff88800592a574 by task kworker/u8:5/74\n\nCPU: 0 UID: 0 PID: 74 Comm: kworker/u8:5 Not tainted 6.19.0-dirty #10 PREEMPT(voluntary)\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014\nWorkqueue: nvme-reset-wq nvme_reset_work\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0xea/0x150 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:378 [inline]\n print_report+0xce/0x5d0 mm/kasan/report.c:482\n kasan_report+0xdc/0x110 mm/kasan/report.c:595\n __asan_report_load2_noabort+0x18/0x20 mm/kasan/report_generic.c:379\n nvme_dbbuf_free drivers/nvme/host/pci.c:377 [inline]\n nvme_dbbuf_set+0x39c/0x400 drivers/nvme/host/pci.c:404\n nvme_reset_work+0x36b/0x8c0 drivers/nvme/host/pci.c:3252\n process_one_work+0x956/0x1aa0 kernel/workqueue.c:3257\n process_scheduled_works kernel/workqueue.c:3340 [inline]\n worker_thread+0x65c/0xe60 kernel/workqueue.c:3421\n kthread+0x41a/0x930 kernel/kthread.c:463\n ret_from_fork+0x6f8/0x8c0 arch/x86/kernel/process.c:158\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246\n \u003c/TASK\u003e\n\nAllocated by task 34 on cpu 1 at 4.241550s:\n kasan_save_stack+0x2c/0x60 mm/kasan/common.c:57\n kasan_save_track+0x1c/0x70 mm/kasan/common.c:78\n kasan_save_alloc_info+0x3c/0x50 mm/kasan/generic.c:570\n poison_kmalloc_redzone mm/kasan/common.c:398 [inline]\n __kasan_kmalloc+0xb5/0xc0 mm/kasan/common.c:415\n kasan_kmalloc include/linux/kasan.h:263 [inline]\n __do_kmalloc_node mm/slub.c:5657 [inline]\n __kmalloc_node_noprof+0x2bf/0x8d0 mm/slub.c:5663\n kmalloc_array_node_noprof include/linux/slab.h:1075 [inline]\n nvme_pci_alloc_dev drivers/nvme/host/pci.c:3479 [inline]\n nvme_probe+0x2f1/0x1820 drivers/nvme/host/pci.c:3534\n local_pci_probe+0xef/0x1c0 drivers/pci/pci-driver.c:324\n pci_call_probe drivers/pci/pci-driver.c:392 [inline]\n __pci_device_probe drivers/pci/pci-driver.c:417 [inline]\n pci_device_probe+0x743/0x920 drivers/pci/pci-driver.c:451\n call_driver_probe drivers/base/dd.c:583 [inline]\n really_probe+0x29b/0xb70 drivers/base/dd.c:661\n __driver_probe_device+0x3b0/0x4a0 drivers/base/dd.c:803\n driver_probe_device+0x56/0x1f0 drivers/base/dd.c:833\n __driver_attach_async_helper+0x155/0x340 drivers/base/dd.c:1159\n async_run_entry_fn+0xa6/0x4b0 kernel/async.c:129\n process_one_work+0x956/0x1aa0 kernel/workqueue.c:3257\n process_scheduled_works kernel/workqueue.c:3340 [inline]\n worker_thread+0x65c/0xe60 kernel/workqueue.c:3421\n kthread+0x41a/0x930 kernel/kthread.c:463\n ret_from_fork+0x6f8/0x8c0 arch/x86/kernel/process.c:158\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246\n\nThe buggy address belongs to the object at ffff88800592a000\n which belongs to the cache kmalloc-2k of size 2048\nThe buggy address is located 244 bytes to the right of\n allocated 1152-byte region [ffff88800592a000, ffff88800592a480)\n\nThe buggy address belongs to the physical page:\npage: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5928\nhead: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0\nanon flags: 0xfffffc0000040(head|node=0|zone=1|lastcpupid=0x1fffff)\npage_type: f5(slab)\nraw: 000fffffc0000040 ffff888001042000 0000000000000000 dead000000000001\nraw: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000\nhead: 000fffffc0000040 ffff888001042000 00000\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T16:07:01.436Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2b9d605c3f0d3262142f196249cd3bd58c857c71"
        },
        {
          "url": "https://git.kernel.org/stable/c/86183d550559e45e07059bbdf17331fea469e38c"
        },
        {
          "url": "https://git.kernel.org/stable/c/d7990c936e25f484b61a5adeeadc1d290a9fd16e"
        },
        {
          "url": "https://git.kernel.org/stable/c/83e6edd6358326c9c2de31a54bb4a1ec50703f1f"
        },
        {
          "url": "https://git.kernel.org/stable/c/50bad78f03a02d3c0f228edf9912b494d3e7acb9"
        },
        {
          "url": "https://git.kernel.org/stable/c/328c551f0cc81ee776b186b86cc6e5253bb6fda7"
        },
        {
          "url": "https://git.kernel.org/stable/c/78279d2d74c58a0ed64e43cf601a02649771182e"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4e78f1427c7d6859229ae9616df54e1fc05a516"
        }
      ],
      "title": "nvme-pci: Fix slab-out-of-bounds in nvme_dbbuf_set",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43449",
    "datePublished": "2026-05-08T14:22:15.276Z",
    "dateReserved": "2026-05-01T14:12:56.010Z",
    "dateUpdated": "2026-05-23T16:07:01.436Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-43449",
      "date": "2026-09-16",
      "epss": "0.00126",
      "percentile": "0.02651"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-43449\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-05-08T15:16:57.477\",\"lastModified\":\"2026-06-17T10:49:37.297\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnvme-pci: Fix slab-out-of-bounds in nvme_dbbuf_set\\n\\ndev-\u003eonline_queues is a count incremented in nvme_init_queue. Thus,\\nvalid indices are 0 through dev-\u003eonline_queues \u2212 1.\\n\\nThis patch fixes the loop condition to ensure the index stays within the\\nvalid range. Index 0 is excluded because it is the admin queue.\\n\\nKASAN splat:\\n\\n==================================================================\\nBUG: KASAN: slab-out-of-bounds in nvme_dbbuf_free drivers/nvme/host/pci.c:377 [inline]\\nBUG: KASAN: slab-out-of-bounds in nvme_dbbuf_set+0x39c/0x400 drivers/nvme/host/pci.c:404\\nRead of size 2 at addr ffff88800592a574 by task kworker/u8:5/74\\n\\nCPU: 0 UID: 0 PID: 74 Comm: kworker/u8:5 Not tainted 6.19.0-dirty #10 PREEMPT(voluntary)\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014\\nWorkqueue: nvme-reset-wq nvme_reset_work\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:94 [inline]\\n dump_stack_lvl+0xea/0x150 lib/dump_stack.c:120\\n print_address_description mm/kasan/report.c:378 [inline]\\n print_report+0xce/0x5d0 mm/kasan/report.c:482\\n kasan_report+0xdc/0x110 mm/kasan/report.c:595\\n __asan_report_load2_noabort+0x18/0x20 mm/kasan/report_generic.c:379\\n nvme_dbbuf_free drivers/nvme/host/pci.c:377 [inline]\\n nvme_dbbuf_set+0x39c/0x400 drivers/nvme/host/pci.c:404\\n nvme_reset_work+0x36b/0x8c0 drivers/nvme/host/pci.c:3252\\n process_one_work+0x956/0x1aa0 kernel/workqueue.c:3257\\n process_scheduled_works kernel/workqueue.c:3340 [inline]\\n worker_thread+0x65c/0xe60 kernel/workqueue.c:3421\\n kthread+0x41a/0x930 kernel/kthread.c:463\\n ret_from_fork+0x6f8/0x8c0 arch/x86/kernel/process.c:158\\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246\\n \u003c/TASK\u003e\\n\\nAllocated by task 34 on cpu 1 at 4.241550s:\\n kasan_save_stack+0x2c/0x60 mm/kasan/common.c:57\\n kasan_save_track+0x1c/0x70 mm/kasan/common.c:78\\n kasan_save_alloc_info+0x3c/0x50 mm/kasan/generic.c:570\\n poison_kmalloc_redzone mm/kasan/common.c:398 [inline]\\n __kasan_kmalloc+0xb5/0xc0 mm/kasan/common.c:415\\n kasan_kmalloc include/linux/kasan.h:263 [inline]\\n __do_kmalloc_node mm/slub.c:5657 [inline]\\n __kmalloc_node_noprof+0x2bf/0x8d0 mm/slub.c:5663\\n kmalloc_array_node_noprof include/linux/slab.h:1075 [inline]\\n nvme_pci_alloc_dev drivers/nvme/host/pci.c:3479 [inline]\\n nvme_probe+0x2f1/0x1820 drivers/nvme/host/pci.c:3534\\n local_pci_probe+0xef/0x1c0 drivers/pci/pci-driver.c:324\\n pci_call_probe drivers/pci/pci-driver.c:392 [inline]\\n __pci_device_probe drivers/pci/pci-driver.c:417 [inline]\\n pci_device_probe+0x743/0x920 drivers/pci/pci-driver.c:451\\n call_driver_probe drivers/base/dd.c:583 [inline]\\n really_probe+0x29b/0xb70 drivers/base/dd.c:661\\n __driver_probe_device+0x3b0/0x4a0 drivers/base/dd.c:803\\n driver_probe_device+0x56/0x1f0 drivers/base/dd.c:833\\n __driver_attach_async_helper+0x155/0x340 drivers/base/dd.c:1159\\n async_run_entry_fn+0xa6/0x4b0 kernel/async.c:129\\n process_one_work+0x956/0x1aa0 kernel/workqueue.c:3257\\n process_scheduled_works kernel/workqueue.c:3340 [inline]\\n worker_thread+0x65c/0xe60 kernel/workqueue.c:3421\\n kthread+0x41a/0x930 kernel/kthread.c:463\\n ret_from_fork+0x6f8/0x8c0 arch/x86/kernel/process.c:158\\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246\\n\\nThe buggy address belongs to the object at ffff88800592a000\\n which belongs to the cache kmalloc-2k of size 2048\\nThe buggy address is located 244 bytes to the right of\\n allocated 1152-byte region [ffff88800592a000, ffff88800592a480)\\n\\nThe buggy address belongs to the physical page:\\npage: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5928\\nhead: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0\\nanon flags: 0xfffffc0000040(head|node=0|zone=1|lastcpupid=0x1fffff)\\npage_type: f5(slab)\\nraw: 000fffffc0000040 ffff888001042000 0000000000000000 dead000000000001\\nraw: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000\\nhead: 000fffffc0000040 ffff888001042000 00000\\n---truncated---\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/nvme/host/pci.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"0f0d2c876c96d4908a9ef40959a44bec21bdd6cf\",\"lessThan\":\"2b9d605c3f0d3262142f196249cd3bd58c857c71\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0f0d2c876c96d4908a9ef40959a44bec21bdd6cf\",\"lessThan\":\"86183d550559e45e07059bbdf17331fea469e38c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0f0d2c876c96d4908a9ef40959a44bec21bdd6cf\",\"lessThan\":\"d7990c936e25f484b61a5adeeadc1d290a9fd16e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0f0d2c876c96d4908a9ef40959a44bec21bdd6cf\",\"lessThan\":\"83e6edd6358326c9c2de31a54bb4a1ec50703f1f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0f0d2c876c96d4908a9ef40959a44bec21bdd6cf\",\"lessThan\":\"50bad78f03a02d3c0f228edf9912b494d3e7acb9\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0f0d2c876c96d4908a9ef40959a44bec21bdd6cf\",\"lessThan\":\"328c551f0cc81ee776b186b86cc6e5253bb6fda7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0f0d2c876c96d4908a9ef40959a44bec21bdd6cf\",\"lessThan\":\"78279d2d74c58a0ed64e43cf601a02649771182e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0f0d2c876c96d4908a9ef40959a44bec21bdd6cf\",\"lessThan\":\"b4e78f1427c7d6859229ae9616df54e1fc05a516\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"930bb3092fe606baa23d57ae59b70b291d67a8af\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fd1c1de8c4589fdd528733bfd01ed0c5f3f69204\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4940816604e3ce7e05e8df297773ee86c0476d48\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"55a3b1ad694631cc2698b5500ac5865d7d0f064e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4.14.210\",\"lessThan\":\"4.15\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.19.161\",\"lessThan\":\"4.20\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.4.81\",\"lessThan\":\"5.5\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.9.12\",\"lessThan\":\"5.10\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/nvme/host/pci.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.10\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.10\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.253\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.203\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.167\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.130\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.78\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.19\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.19.9\",\"lessThanOrEqual\":\"6.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"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:H/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.2}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.14.210\",\"versionEndExcluding\":\"4.15\",\"matchCriteriaId\":\"8850B628-46E3-4E83-8136-9AFC8965A13E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.19.161\",\"versionEndExcluding\":\"4.20\",\"matchCriteriaId\":\"368AA3A3-6A4A-492B-99FB-E804FFEBF173\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.4.81\",\"versionEndExcluding\":\"5.5\",\"matchCriteriaId\":\"71E14FFC-F203-4E2A-81C4-D67CF14E2327\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.9.12\",\"versionEndExcluding\":\"5.10\",\"matchCriteriaId\":\"7D05D36D-2D49-4012-BD61-E167762C92E0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.10.1\",\"versionEndExcluding\":\"5.10.253\",\"matchCriteriaId\":\"B87BA2E9-4271-421C-B198-37987F5E3B98\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.203\",\"matchCriteriaId\":\"20DDB3E9-AABF-4107-ADB0-5362AA067045\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.167\",\"matchCriteriaId\":\"2EDC6BAF-B710-4E26-B6AA-D68922EE7B43\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.130\",\"matchCriteriaId\":\"C57BB918-DF28-46B3-94F7-144176841267\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.78\",\"matchCriteriaId\":\"28D591F5-B196-4CC9-905C-DC80F116E7A8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.18.19\",\"matchCriteriaId\":\"D394AC60-6F28-435F-872A-CCDF384B8331\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.19\",\"versionEndExcluding\":\"6.19.9\",\"matchCriteriaId\":\"E825E7C3-FEAC-4FD3-8A81-78D7387948C9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.10:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"B29EBB93-107F-4ED6-8DE3-C2732BC659C3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.10:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"F0390D83-6C17-4557-BE8D-B659E04F565A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.10:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"4120E4B3-B66D-4ACE-8570-1DD4DF20A324\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.10:rc7:*:*:*:*:*:*\",\"matchCriteriaId\":\"73D60343-647D-4B5D-AA6D-CE87C462E368\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"F253B622-8837-4245-BCE5-A7BF8FC76A16\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"F666C8D8-6538-46D4-B318-87610DE64C34\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2b9d605c3f0d3262142f196249cd3bd58c857c71\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/328c551f0cc81ee776b186b86cc6e5253bb6fda7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/50bad78f03a02d3c0f228edf9912b494d3e7acb9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/78279d2d74c58a0ed64e43cf601a02649771182e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/83e6edd6358326c9c2de31a54bb4a1ec50703f1f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/86183d550559e45e07059bbdf17331fea469e38c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b4e78f1427c7d6859229ae9616df54e1fc05a516\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d7990c936e25f484b61a5adeeadc1d290a9fd16e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T07:37:47+00:00",
      "cve": "CVE-2026-43449",
      "id": "CVE-2026-43449",
      "initial_release_date": "2026-05-08T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: NVMe PCI driver slab-out-of-bounds can lead to privilege escalation or denial of service",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43449.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T01:17:30Z",
      "cve": "CVE-2026-43449",
      "id": "CVE-2026-43449",
      "initial_release_date": "2026-05-22T02:20:11Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "532",
      "product_status:known_not_affected": "117",
      "product_status:recommended": "273",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-43449",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-43449.json",
      "version": "14"
    }
  }
}



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Taxonomy of the tags.





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.