CVE-2026-23126 (GCVE-0-2026-23126)

Vulnerability from cvelistv5 – Published: 2026-02-14 15:09 – Updated: 2026-06-11 18:44
VLAI
Title
netdevsim: fix a race issue related to the operation on bpf_bound_progs list
Summary
In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix a race issue related to the operation on bpf_bound_progs list The netdevsim driver lacks a protection mechanism for operations on the bpf_bound_progs list. When the nsim_bpf_create_prog() performs list_add_tail, it is possible that nsim_bpf_destroy_prog() is simultaneously performs list_del. Concurrent operations on the list may lead to list corruption and trigger a kernel crash as follows: [ 417.290971] kernel BUG at lib/list_debug.c:62! [ 417.290983] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI [ 417.290992] CPU: 10 PID: 168 Comm: kworker/10:1 Kdump: loaded Not tainted 6.19.0-rc5 #1 [ 417.291003] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 417.291007] Workqueue: events bpf_prog_free_deferred [ 417.291021] RIP: 0010:__list_del_entry_valid_or_report+0xa7/0xc0 [ 417.291034] Code: a8 ff 0f 0b 48 89 fe 48 89 ca 48 c7 c7 48 a1 eb ae e8 ed fb a8 ff 0f 0b 48 89 fe 48 89 c2 48 c7 c7 80 a1 eb ae e8 d9 fb a8 ff <0f> 0b 48 89 d1 48 c7 c7 d0 a1 eb ae 48 89 f2 48 89 c6 e8 c2 fb a8 [ 417.291040] RSP: 0018:ffffb16a40807df8 EFLAGS: 00010246 [ 417.291046] RAX: 000000000000006d RBX: ffff8e589866f500 RCX: 0000000000000000 [ 417.291051] RDX: 0000000000000000 RSI: ffff8e59f7b23180 RDI: ffff8e59f7b23180 [ 417.291055] RBP: ffffb16a412c9000 R08: 0000000000000000 R09: 0000000000000003 [ 417.291059] R10: ffffb16a40807c80 R11: ffffffffaf9edce8 R12: ffff8e594427ac20 [ 417.291063] R13: ffff8e59f7b44780 R14: ffff8e58800b7a05 R15: 0000000000000000 [ 417.291074] FS: 0000000000000000(0000) GS:ffff8e59f7b00000(0000) knlGS:0000000000000000 [ 417.291079] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 417.291083] CR2: 00007fc4083efe08 CR3: 00000001c3626006 CR4: 0000000000770ee0 [ 417.291088] PKRU: 55555554 [ 417.291091] Call Trace: [ 417.291096] <TASK> [ 417.291103] nsim_bpf_destroy_prog+0x31/0x80 [netdevsim] [ 417.291154] __bpf_prog_offload_destroy+0x2a/0x80 [ 417.291163] bpf_prog_dev_bound_destroy+0x6f/0xb0 [ 417.291171] bpf_prog_free_deferred+0x18e/0x1a0 [ 417.291178] process_one_work+0x18a/0x3a0 [ 417.291188] worker_thread+0x27b/0x3a0 [ 417.291197] ? __pfx_worker_thread+0x10/0x10 [ 417.291207] kthread+0xe5/0x120 [ 417.291214] ? __pfx_kthread+0x10/0x10 [ 417.291221] ret_from_fork+0x31/0x50 [ 417.291230] ? __pfx_kthread+0x10/0x10 [ 417.291236] ret_from_fork_asm+0x1a/0x30 [ 417.291246] </TASK> Add a mutex lock, to prevent simultaneous addition and deletion operations on the list.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:41 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 31d3ad832948c75139b0e5b653912f7898a1d5d5 , < 3f560cfc7706029294132482fff5d1bc7884b70d (git)
Affected: 31d3ad832948c75139b0e5b653912f7898a1d5d5 , < f1f9cfd2f46a73b7de2982d01be822eac3a0efaa (git)
Affected: 31d3ad832948c75139b0e5b653912f7898a1d5d5 , < d77379ca82efcb2fe563359cc795027d680410db (git)
Affected: 31d3ad832948c75139b0e5b653912f7898a1d5d5 , < 68462ecc40ea8f780fb3c74ebfddd05506bb731b (git)
Affected: 31d3ad832948c75139b0e5b653912f7898a1d5d5 , < b97d5eedf4976cc94321243be83b39efe81a0e15 (git)
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Linux Linux Affected: 4.16
Unaffected: 0 , < 4.16 (semver)
Unaffected: 6.1.162 , ≤ 6.1.* (semver)
Unaffected: 6.6.122 , ≤ 6.6.* (semver)
Unaffected: 6.12.68 , ≤ 6.12.* (semver)
Unaffected: 6.18.8 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetdevsim: fix a race issue related to the operation on bpf_bound_progs list\n\nThe netdevsim driver lacks a protection mechanism for operations on the\nbpf_bound_progs list. When the nsim_bpf_create_prog() performs\nlist_add_tail, it is possible that nsim_bpf_destroy_prog() is\nsimultaneously performs list_del. Concurrent operations on the list may\nlead to list corruption and trigger a kernel crash as follows:\n\n[  417.290971] kernel BUG at lib/list_debug.c:62!\n[  417.290983] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n[  417.290992] CPU: 10 PID: 168 Comm: kworker/10:1 Kdump: loaded Not tainted 6.19.0-rc5 #1\n[  417.291003] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[  417.291007] Workqueue: events bpf_prog_free_deferred\n[  417.291021] RIP: 0010:__list_del_entry_valid_or_report+0xa7/0xc0\n[  417.291034] Code: a8 ff 0f 0b 48 89 fe 48 89 ca 48 c7 c7 48 a1 eb ae e8 ed fb a8 ff 0f 0b 48 89 fe 48 89 c2 48 c7 c7 80 a1 eb ae e8 d9 fb a8 ff \u003c0f\u003e 0b 48 89 d1 48 c7 c7 d0 a1 eb ae 48 89 f2 48 89 c6 e8 c2 fb a8\n[  417.291040] RSP: 0018:ffffb16a40807df8 EFLAGS: 00010246\n[  417.291046] RAX: 000000000000006d RBX: ffff8e589866f500 RCX: 0000000000000000\n[  417.291051] RDX: 0000000000000000 RSI: ffff8e59f7b23180 RDI: ffff8e59f7b23180\n[  417.291055] RBP: ffffb16a412c9000 R08: 0000000000000000 R09: 0000000000000003\n[  417.291059] R10: ffffb16a40807c80 R11: ffffffffaf9edce8 R12: ffff8e594427ac20\n[  417.291063] R13: ffff8e59f7b44780 R14: ffff8e58800b7a05 R15: 0000000000000000\n[  417.291074] FS:  0000000000000000(0000) GS:ffff8e59f7b00000(0000) knlGS:0000000000000000\n[  417.291079] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  417.291083] CR2: 00007fc4083efe08 CR3: 00000001c3626006 CR4: 0000000000770ee0\n[  417.291088] PKRU: 55555554\n[  417.291091] Call Trace:\n[  417.291096]  \u003cTASK\u003e\n[  417.291103]  nsim_bpf_destroy_prog+0x31/0x80 [netdevsim]\n[  417.291154]  __bpf_prog_offload_destroy+0x2a/0x80\n[  417.291163]  bpf_prog_dev_bound_destroy+0x6f/0xb0\n[  417.291171]  bpf_prog_free_deferred+0x18e/0x1a0\n[  417.291178]  process_one_work+0x18a/0x3a0\n[  417.291188]  worker_thread+0x27b/0x3a0\n[  417.291197]  ? __pfx_worker_thread+0x10/0x10\n[  417.291207]  kthread+0xe5/0x120\n[  417.291214]  ? __pfx_kthread+0x10/0x10\n[  417.291221]  ret_from_fork+0x31/0x50\n[  417.291230]  ? __pfx_kthread+0x10/0x10\n[  417.291236]  ret_from_fork_asm+0x1a/0x30\n[  417.291246]  \u003c/TASK\u003e\n\nAdd a mutex lock, to prevent simultaneous addition and deletion operations\non the list."
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          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetdevsim: fix a race issue related to the operation on bpf_bound_progs list\n\nThe netdevsim driver lacks a protection mechanism for operations on the\nbpf_bound_progs list. When the nsim_bpf_create_prog() performs\nlist_add_tail, it is possible that nsim_bpf_destroy_prog() is\nsimultaneously performs list_del. Concurrent operations on the list may\nlead to list corruption and trigger a kernel crash as follows:\n\n[  417.290971] kernel BUG at lib/list_debug.c:62!\n[  417.290983] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n[  417.290992] CPU: 10 PID: 168 Comm: kworker/10:1 Kdump: loaded Not tainted 6.19.0-rc5 #1\n[  417.291003] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[  417.291007] Workqueue: events bpf_prog_free_deferred\n[  417.291021] RIP: 0010:__list_del_entry_valid_or_report+0xa7/0xc0\n[  417.291034] Code: a8 ff 0f 0b 48 89 fe 48 89 ca 48 c7 c7 48 a1 eb ae e8 ed fb a8 ff 0f 0b 48 89 fe 48 89 c2 48 c7 c7 80 a1 eb ae e8 d9 fb a8 ff \u003c0f\u003e 0b 48 89 d1 48 c7 c7 d0 a1 eb ae 48 89 f2 48 89 c6 e8 c2 fb a8\n[  417.291040] RSP: 0018:ffffb16a40807df8 EFLAGS: 00010246\n[  417.291046] RAX: 000000000000006d RBX: ffff8e589866f500 RCX: 0000000000000000\n[  417.291051] RDX: 0000000000000000 RSI: ffff8e59f7b23180 RDI: ffff8e59f7b23180\n[  417.291055] RBP: ffffb16a412c9000 R08: 0000000000000000 R09: 0000000000000003\n[  417.291059] R10: ffffb16a40807c80 R11: ffffffffaf9edce8 R12: ffff8e594427ac20\n[  417.291063] R13: ffff8e59f7b44780 R14: ffff8e58800b7a05 R15: 0000000000000000\n[  417.291074] FS:  0000000000000000(0000) GS:ffff8e59f7b00000(0000) knlGS:0000000000000000\n[  417.291079] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  417.291083] CR2: 00007fc4083efe08 CR3: 00000001c3626006 CR4: 0000000000770ee0\n[  417.291088] PKRU: 55555554\n[  417.291091] Call Trace:\n[  417.291096]  \u003cTASK\u003e\n[  417.291103]  nsim_bpf_destroy_prog+0x31/0x80 [netdevsim]\n[  417.291154]  __bpf_prog_offload_destroy+0x2a/0x80\n[  417.291163]  bpf_prog_dev_bound_destroy+0x6f/0xb0\n[  417.291171]  bpf_prog_free_deferred+0x18e/0x1a0\n[  417.291178]  process_one_work+0x18a/0x3a0\n[  417.291188]  worker_thread+0x27b/0x3a0\n[  417.291197]  ? __pfx_worker_thread+0x10/0x10\n[  417.291207]  kthread+0xe5/0x120\n[  417.291214]  ? __pfx_kthread+0x10/0x10\n[  417.291221]  ret_from_fork+0x31/0x50\n[  417.291230]  ? __pfx_kthread+0x10/0x10\n[  417.291236]  ret_from_fork_asm+0x1a/0x30\n[  417.291246]  \u003c/TASK\u003e\n\nAdd a mutex lock, to prevent simultaneous addition and deletion operations\non the list."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnetdevsim: soluciona un problema de condici\u00f3n de carrera relacionado con la operaci\u00f3n en la lista bpf_bound_progs\n\nEl controlador netdevsim carece de un mecanismo de protecci\u00f3n para las operaciones en la lista bpf_bound_progs. Cuando nsim_bpf_create_prog() realiza list_add_tail, es posible que nsim_bpf_destroy_prog() realice simult\u00e1neamente list_del. Operaciones concurrentes en la lista pueden llevar a la corrupci\u00f3n de la lista y desencadenar un fallo del kernel de la siguiente manera:\n\n[  417.290971] kernel BUG at lib/list_debug.c:62!\n[  417.290983] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n[  417.290992] CPU: 10 PID: 168 Comm: kworker/10:1 Kdump: loaded Not tainted 6.19.0-rc5 #1\n[  417.291003] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[  417.291007] Workqueue: events bpf_prog_free_deferred\n[  417.291021] RIP: 0010:__list_del_entry_valid_or_report+0xa7/0xc0\n[  417.291034] Code: a8 ff 0f 0b 48 89 fe 48 89 ca 48 c7 c7 48 a1 eb ae e8 ed fb a8 ff 0f 0b 48 89 fe 48 89 c2 48 c7 c7 80 a1 eb ae e8 d9 fb a8 ff \u0026lt;0f\u0026gt; 0b 48 89 d1 48 c7 c7 d0 a1 eb ae 48 89 f2 48 89 c6 e8 c2 fb a8\n[  417.291040] RSP: 0018:ffffb16a40807df8 EFLAGS: 00010246\n[  417.291046] RAX: 000000000000006d RBX: ffff8e589866f500 RCX: 0000000000000000\n[  417.291051] RDX: 0000000000000000 RSI: ffff8e59f7b23180 RDI: ffff8e59f7b23180\n[  417.291055] RBP: ffffb16a412c9000 R08: 0000000000000000 R09: 0000000000000003\n[  417.291059] R10: ffffb16a40807c80 R11: ffffffffaf9edce8 R12: ffff8e594427ac20\n[  417.291063] R13: ffff8e59f7b44780 R14: ffff8e58800b7a05 R15: 0000000000000000\n[  417.291074] FS:  0000000000000000(0000) GS:ffff8e59f7b00000(0000) knlGS:0000000000000000\n[  417.291079] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  417.291083] CR2: 00007fc4083efe08 CR3: 00000001c3626006 CR4: 0000000000770ee0\n[  417.291088] PKRU: 55555554\n[  417.291091] Call Trace:\n[  417.291096]  \n[  417.291103]  nsim_bpf_destroy_prog+0x31/0x80 [netdevsim]\n[  417.291154]  __bpf_prog_offload_destroy+0x2a/0x80\n[  417.291163]  bpf_prog_dev_bound_destroy+0x6f/0xb0\n[  417.291171]  bpf_prog_free_deferred+0x18e/0x1a0\n[  417.291178]  process_one_work+0x18a/0x3a0\n[  417.291188]  worker_thread+0x27b/0x3a0\n[  417.291197]  ? __pfx_worker_thread+0x10/0x10\n[  417.291207]  kthread+0xe5/0x120\n[  417.291214]  ? __pfx_kthread+0x10/0x10\n[  417.291221]  ret_from_fork+0x31/0x50\n[  417.291230]  ? __pfx_kthread+0x10/0x10\n[  417.291236]  ret_from_fork_asm+0x1a/0x30\n[  417.291246]  \n\nSe a\u00f1ade un bloqueo mutex para evitar operaciones simult\u00e1neas de adici\u00f3n y eliminaci\u00f3n en la lista."
          }
        ],
        "id": "CVE-2026-23126",
        "lastModified": "2026-06-17T10:20:56.807",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 4.7,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.0,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-23126",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T20:41:30.500855Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-02-14T15:16:07.853",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/3f560cfc7706029294132482fff5d1bc7884b70d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/68462ecc40ea8f780fb3c74ebfddd05506bb731b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/b97d5eedf4976cc94321243be83b39efe81a0e15"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/d77379ca82efcb2fe563359cc795027d680410db"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f1f9cfd2f46a73b7de2982d01be822eac3a0efaa"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-362"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T07:18:55+00:00",
      "cve": "CVE-2026-23126",
      "id": "CVE-2026-23126",
      "initial_release_date": "2026-02-14T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Denial of Service in netdevsim due to race condition in BPF program list operations",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23126.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-23126",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-10T20:41:30.500855Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-06-11T17:38:26.031Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/netdevsim/bpf.c",
                "drivers/net/netdevsim/dev.c",
                "drivers/net/netdevsim/netdevsim.h"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "3f560cfc7706029294132482fff5d1bc7884b70d",
                  "status": "affected",
                  "version": "31d3ad832948c75139b0e5b653912f7898a1d5d5",
                  "versionType": "git"
                },
                {
                  "lessThan": "f1f9cfd2f46a73b7de2982d01be822eac3a0efaa",
                  "status": "affected",
                  "version": "31d3ad832948c75139b0e5b653912f7898a1d5d5",
                  "versionType": "git"
                },
                {
                  "lessThan": "d77379ca82efcb2fe563359cc795027d680410db",
                  "status": "affected",
                  "version": "31d3ad832948c75139b0e5b653912f7898a1d5d5",
                  "versionType": "git"
                },
                {
                  "lessThan": "68462ecc40ea8f780fb3c74ebfddd05506bb731b",
                  "status": "affected",
                  "version": "31d3ad832948c75139b0e5b653912f7898a1d5d5",
                  "versionType": "git"
                },
                {
                  "lessThan": "b97d5eedf4976cc94321243be83b39efe81a0e15",
                  "status": "affected",
                  "version": "31d3ad832948c75139b0e5b653912f7898a1d5d5",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/netdevsim/bpf.c",
                "drivers/net/netdevsim/dev.c",
                "drivers/net/netdevsim/netdevsim.h"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "4.16"
                },
                {
                  "lessThan": "4.16",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.162",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.122",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.68",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.18.*",
                  "status": "unaffected",
                  "version": "6.18.8",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.19",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.162",
                      "versionStartIncluding": "4.16",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.122",
                      "versionStartIncluding": "4.16",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12.68",
                      "versionStartIncluding": "4.16",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.18.8",
                      "versionStartIncluding": "4.16",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.19",
                      "versionStartIncluding": "4.16",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetdevsim: fix a race issue related to the operation on bpf_bound_progs list\n\nThe netdevsim driver lacks a protection mechanism for operations on the\nbpf_bound_progs list. When the nsim_bpf_create_prog() performs\nlist_add_tail, it is possible that nsim_bpf_destroy_prog() is\nsimultaneously performs list_del. Concurrent operations on the list may\nlead to list corruption and trigger a kernel crash as follows:\n\n[  417.290971] kernel BUG at lib/list_debug.c:62!\n[  417.290983] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n[  417.290992] CPU: 10 PID: 168 Comm: kworker/10:1 Kdump: loaded Not tainted 6.19.0-rc5 #1\n[  417.291003] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[  417.291007] Workqueue: events bpf_prog_free_deferred\n[  417.291021] RIP: 0010:__list_del_entry_valid_or_report+0xa7/0xc0\n[  417.291034] Code: a8 ff 0f 0b 48 89 fe 48 89 ca 48 c7 c7 48 a1 eb ae e8 ed fb a8 ff 0f 0b 48 89 fe 48 89 c2 48 c7 c7 80 a1 eb ae e8 d9 fb a8 ff \u003c0f\u003e 0b 48 89 d1 48 c7 c7 d0 a1 eb ae 48 89 f2 48 89 c6 e8 c2 fb a8\n[  417.291040] RSP: 0018:ffffb16a40807df8 EFLAGS: 00010246\n[  417.291046] RAX: 000000000000006d RBX: ffff8e589866f500 RCX: 0000000000000000\n[  417.291051] RDX: 0000000000000000 RSI: ffff8e59f7b23180 RDI: ffff8e59f7b23180\n[  417.291055] RBP: ffffb16a412c9000 R08: 0000000000000000 R09: 0000000000000003\n[  417.291059] R10: ffffb16a40807c80 R11: ffffffffaf9edce8 R12: ffff8e594427ac20\n[  417.291063] R13: ffff8e59f7b44780 R14: ffff8e58800b7a05 R15: 0000000000000000\n[  417.291074] FS:  0000000000000000(0000) GS:ffff8e59f7b00000(0000) knlGS:0000000000000000\n[  417.291079] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  417.291083] CR2: 00007fc4083efe08 CR3: 00000001c3626006 CR4: 0000000000770ee0\n[  417.291088] PKRU: 55555554\n[  417.291091] Call Trace:\n[  417.291096]  \u003cTASK\u003e\n[  417.291103]  nsim_bpf_destroy_prog+0x31/0x80 [netdevsim]\n[  417.291154]  __bpf_prog_offload_destroy+0x2a/0x80\n[  417.291163]  bpf_prog_dev_bound_destroy+0x6f/0xb0\n[  417.291171]  bpf_prog_free_deferred+0x18e/0x1a0\n[  417.291178]  process_one_work+0x18a/0x3a0\n[  417.291188]  worker_thread+0x27b/0x3a0\n[  417.291197]  ? __pfx_worker_thread+0x10/0x10\n[  417.291207]  kthread+0xe5/0x120\n[  417.291214]  ? __pfx_kthread+0x10/0x10\n[  417.291221]  ret_from_fork+0x31/0x50\n[  417.291230]  ? __pfx_kthread+0x10/0x10\n[  417.291236]  ret_from_fork_asm+0x1a/0x30\n[  417.291246]  \u003c/TASK\u003e\n\nAdd a mutex lock, to prevent simultaneous addition and deletion operations\non the list."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T22:00:37.894Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/3f560cfc7706029294132482fff5d1bc7884b70d"
            },
            {
              "url": "https://git.kernel.org/stable/c/f1f9cfd2f46a73b7de2982d01be822eac3a0efaa"
            },
            {
              "url": "https://git.kernel.org/stable/c/d77379ca82efcb2fe563359cc795027d680410db"
            },
            {
              "url": "https://git.kernel.org/stable/c/68462ecc40ea8f780fb3c74ebfddd05506bb731b"
            },
            {
              "url": "https://git.kernel.org/stable/c/b97d5eedf4976cc94321243be83b39efe81a0e15"
            }
          ],
          "title": "netdevsim: fix a race issue related to the operation on bpf_bound_progs list",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2026-23126",
        "datePublished": "2026-02-14T15:09:55.552Z",
        "dateReserved": "2026-01-13T15:37:45.970Z",
        "dateUpdated": "2026-06-11T18:44:13.151Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.