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CVE-2024-39502 (GCVE-0-2024-39502)

Vulnerability from cvelistv5 – Published: 2024-07-12 12:20 – Updated: 2026-08-05 11:33
VLAI
Title
ionic: fix use after netif_napi_del()
Summary
In the Linux kernel, the following vulnerability has been resolved: ionic: fix use after netif_napi_del() When queues are started, netif_napi_add() and napi_enable() are called. If there are 4 queues and only 3 queues are used for the current configuration, only 3 queues' napi should be registered and enabled. The ionic_qcq_enable() checks whether the .poll pointer is not NULL for enabling only the using queue' napi. Unused queues' napi will not be registered by netif_napi_add(), so the .poll pointer indicates NULL. But it couldn't distinguish whether the napi was unregistered or not because netif_napi_del() doesn't reset the .poll pointer to NULL. So, ionic_qcq_enable() calls napi_enable() for the queue, which was unregistered by netif_napi_del(). Reproducer: ethtool -L <interface name> rx 1 tx 1 combined 0 ethtool -L <interface name> rx 0 tx 0 combined 1 ethtool -L <interface name> rx 0 tx 0 combined 4 Splat looks like: kernel BUG at net/core/dev.c:6666! Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 3 PID: 1057 Comm: kworker/3:3 Not tainted 6.10.0-rc2+ #16 Workqueue: events ionic_lif_deferred_work [ionic] RIP: 0010:napi_enable+0x3b/0x40 Code: 48 89 c2 48 83 e2 f6 80 b9 61 09 00 00 00 74 0d 48 83 bf 60 01 00 00 00 74 03 80 ce 01 f0 4f RSP: 0018:ffffb6ed83227d48 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff97560cda0828 RCX: 0000000000000029 RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff97560cda0a28 RBP: ffffb6ed83227d50 R08: 0000000000000400 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: ffff97560ce3c1a0 R14: 0000000000000000 R15: ffff975613ba0a20 FS: 0000000000000000(0000) GS:ffff975d5f780000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8f734ee200 CR3: 0000000103e50000 CR4: 00000000007506f0 PKRU: 55555554 Call Trace: <TASK> ? die+0x33/0x90 ? do_trap+0xd9/0x100 ? napi_enable+0x3b/0x40 ? do_error_trap+0x83/0xb0 ? napi_enable+0x3b/0x40 ? napi_enable+0x3b/0x40 ? exc_invalid_op+0x4e/0x70 ? napi_enable+0x3b/0x40 ? asm_exc_invalid_op+0x16/0x20 ? napi_enable+0x3b/0x40 ionic_qcq_enable+0xb7/0x180 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8] ionic_start_queues+0xc4/0x290 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8] ionic_link_status_check+0x11c/0x170 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8] ionic_lif_deferred_work+0x129/0x280 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8] process_one_work+0x145/0x360 worker_thread+0x2bb/0x3d0 ? __pfx_worker_thread+0x10/0x10 kthread+0xcc/0x100 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2d/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 17:07 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0f3154e6bcb354968cc04f7cd86ce466f7b9a814 , < 0d19267cb150e8f76ade210e16ee820a77f684e7 (git)
Affected: 0f3154e6bcb354968cc04f7cd86ce466f7b9a814 , < ff9c2a9426ecf5b9631e9fd74993b357262387d6 (git)
Affected: 0f3154e6bcb354968cc04f7cd86ce466f7b9a814 , < 8edd18dab443863e9e48f084e7f123fca3065e4e (git)
Affected: 0f3154e6bcb354968cc04f7cd86ce466f7b9a814 , < 60cd714871cd5a683353a355cbb17a685245cf84 (git)
Affected: 0f3154e6bcb354968cc04f7cd86ce466f7b9a814 , < 183ebc167a8a19e916b885d4bb61a3491991bfa5 (git)
Affected: 0f3154e6bcb354968cc04f7cd86ce466f7b9a814 , < a87d72b37b9ec2c1e18fe36b09241d8b30334a2e (git)
Affected: 0f3154e6bcb354968cc04f7cd86ce466f7b9a814 , < 79f18a41dd056115d685f3b0a419c7cd40055e13 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 5.4.279 , ≤ 5.4.* (semver)
Unaffected: 5.10.221 , ≤ 5.10.* (semver)
Unaffected: 5.15.162 , ≤ 5.15.* (semver)
Unaffected: 6.1.95 , ≤ 6.1.* (semver)
Unaffected: 6.6.35 , ≤ 6.6.* (semver)
Unaffected: 6.9.6 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens RUGGEDCOM RST2428P Affected: 0 , < V3.1 (custom)
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Siemens RUGGEDCOM RST2428P Unaffected: 0 , < * (custom)
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Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family Unaffected: 0 , < * (custom)
guessed Create a notification for this product.
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family Affected: 0 , < V3.1 (custom)
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Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family Unaffected: 0 , < * (custom)
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Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nionic: fix use after netif_napi_del()\n\nWhen queues are started, netif_napi_add() and napi_enable() are called.\nIf there are 4 queues and only 3 queues are used for the current\nconfiguration, only 3 queues\u0027 napi should be registered and enabled.\nThe ionic_qcq_enable() checks whether the .poll pointer is not NULL for\nenabling only the using queue\u0027 napi. Unused queues\u0027 napi will not be\nregistered by netif_napi_add(), so the .poll pointer indicates NULL.\nBut it couldn\u0027t distinguish whether the napi was unregistered or not\nbecause netif_napi_del() doesn\u0027t reset the .poll pointer to NULL.\nSo, ionic_qcq_enable() calls napi_enable() for the queue, which was\nunregistered by netif_napi_del().\n\nReproducer:\n   ethtool -L \u003cinterface name\u003e rx 1 tx 1 combined 0\n   ethtool -L \u003cinterface name\u003e rx 0 tx 0 combined 1\n   ethtool -L \u003cinterface name\u003e rx 0 tx 0 combined 4\n\nSplat looks like:\nkernel BUG at net/core/dev.c:6666!\nOops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\nCPU: 3 PID: 1057 Comm: kworker/3:3 Not tainted 6.10.0-rc2+ #16\nWorkqueue: events ionic_lif_deferred_work [ionic]\nRIP: 0010:napi_enable+0x3b/0x40\nCode: 48 89 c2 48 83 e2 f6 80 b9 61 09 00 00 00 74 0d 48 83 bf 60 01 00 00 00 74 03 80 ce 01 f0 4f\nRSP: 0018:ffffb6ed83227d48 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: ffff97560cda0828 RCX: 0000000000000029\nRDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff97560cda0a28\nRBP: ffffb6ed83227d50 R08: 0000000000000400 R09: 0000000000000001\nR10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000\nR13: ffff97560ce3c1a0 R14: 0000000000000000 R15: ffff975613ba0a20\nFS:  0000000000000000(0000) GS:ffff975d5f780000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f8f734ee200 CR3: 0000000103e50000 CR4: 00000000007506f0\nPKRU: 55555554\nCall Trace:\n \u003cTASK\u003e\n ? die+0x33/0x90\n ? do_trap+0xd9/0x100\n ? napi_enable+0x3b/0x40\n ? do_error_trap+0x83/0xb0\n ? napi_enable+0x3b/0x40\n ? napi_enable+0x3b/0x40\n ? exc_invalid_op+0x4e/0x70\n ? napi_enable+0x3b/0x40\n ? asm_exc_invalid_op+0x16/0x20\n ? napi_enable+0x3b/0x40\n ionic_qcq_enable+0xb7/0x180 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\n ionic_start_queues+0xc4/0x290 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\n ionic_link_status_check+0x11c/0x170 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\n ionic_lif_deferred_work+0x129/0x280 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\n process_one_work+0x145/0x360\n worker_thread+0x2bb/0x3d0\n ? __pfx_worker_thread+0x10/0x10\n kthread+0xcc/0x100\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x2d/0x50\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30"
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              "value": "AV:L - The trigger is a local `ethtool -L` operation on the netdev, delivered via the ethtool ioctl or the ethtool generic-netlink family \u2014 no network packet from a remote peer reaches the vulnerable code. Attack requires local access to the system or container hosting the ionic netdev.\nAC:L - The upstream reproducer is a deterministic three-command sequence (`ethtool -L ... rx 1 tx 1 combined 0`, then `combined 1`, then `combined 4`) with no race and no dependence on memory layout or system state the attacker cannot influence. The link-status event that drives the crashing deferred work is generated by the reconfiguration itself via `ionic_link_status_check_request()`.\nPR:L - Both entry points gate on namespace-relative CAP_NET_ADMIN (`ns_capable(net-\u003euser_ns, CAP_NET_ADMIN)` in net/ethtool/ioctl.c:2912 and `GENL_UNS_ADMIN_PERM` in net/ethtool/netlink.c:921), which an unprivileged user holds inside their own user namespace. ionic exposes SR-IOV VFs that are routinely delegated into container network namespaces by SR-IOV CNI, so a basic container user reaches `ionic_set_channels` without any host-root privilege.\nUI:N - The entire sequence is attacker-driven from a single process; no administrator or victim action is needed. The queue restart that reaches `ionic_qcq_enable()` is triggered automatically by the attacker\u0027s own reconfiguration.\nS:U - The corruption and the crash are confined to the kernel\u0027s own security authority \u2014 there is no hypervisor, IOMMU, or DMA boundary being crossed. This is standard in-kernel memory corruption, so the vulnerable component and impacted component share one authority.\nC:H - Re-enabling a NAPI that `netif_napi_del()` already unlinked leaves it schedulable from the still-registered IRQ while the containing `struct ionic_qcq` is `devm_kfree()`d, so `net_rx_action()` polls freed slab memory \u2014 a use-after-free that yields an arbitrary kernel-memory read primitive once the object is resprayed.\nI:H - The same use-after-free makes `n-\u003epoll` an indirect call through freed, attacker-sprayable slab memory, giving a control-flow-hijack and arbitrary-write primitive. Per UAF scoring guidance this is High integrity impact, not a mere crash.\nA:H - `napi_enable()` hits `BUG_ON(!test_bit(NAPI_STATE_SCHED, \u0026val))` (net/core/dev.c:6665) and kills the kworker while it holds `lif-\u003equeue_lock`, which is then leaked permanently \u2014 every subsequent `ionic_open`/`ionic_stop`/ethtool path blocks on it while holding `rtnl_lock`, deadlocking the whole networking control plane until reboot (immediate panic with `panic_on_oops=1`)."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:33:48.153Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0d19267cb150e8f76ade210e16ee820a77f684e7"
        },
        {
          "url": "https://git.kernel.org/stable/c/ff9c2a9426ecf5b9631e9fd74993b357262387d6"
        },
        {
          "url": "https://git.kernel.org/stable/c/8edd18dab443863e9e48f084e7f123fca3065e4e"
        },
        {
          "url": "https://git.kernel.org/stable/c/60cd714871cd5a683353a355cbb17a685245cf84"
        },
        {
          "url": "https://git.kernel.org/stable/c/183ebc167a8a19e916b885d4bb61a3491991bfa5"
        },
        {
          "url": "https://git.kernel.org/stable/c/a87d72b37b9ec2c1e18fe36b09241d8b30334a2e"
        },
        {
          "url": "https://git.kernel.org/stable/c/79f18a41dd056115d685f3b0a419c7cd40055e13"
        }
      ],
      "title": "ionic: fix use after netif_napi_del()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-39502",
    "datePublished": "2024-07-12T12:20:35.635Z",
    "dateReserved": "2024-06-25T14:23:23.752Z",
    "dateUpdated": "2026-08-05T11:33:48.153Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-39502",
      "date": "2026-09-14",
      "epss": "0.00307",
      "percentile": "0.2334"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-39502\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-12T13:15:12.680\",\"lastModified\":\"2026-08-04T11:19:01.630\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nionic: fix use after netif_napi_del()\\n\\nWhen queues are started, netif_napi_add() and napi_enable() are called.\\nIf there are 4 queues and only 3 queues are used for the current\\nconfiguration, only 3 queues\u0027 napi should be registered and enabled.\\nThe ionic_qcq_enable() checks whether the .poll pointer is not NULL for\\nenabling only the using queue\u0027 napi. Unused queues\u0027 napi will not be\\nregistered by netif_napi_add(), so the .poll pointer indicates NULL.\\nBut it couldn\u0027t distinguish whether the napi was unregistered or not\\nbecause netif_napi_del() doesn\u0027t reset the .poll pointer to NULL.\\nSo, ionic_qcq_enable() calls napi_enable() for the queue, which was\\nunregistered by netif_napi_del().\\n\\nReproducer:\\n   ethtool -L \u003cinterface name\u003e rx 1 tx 1 combined 0\\n   ethtool -L \u003cinterface name\u003e rx 0 tx 0 combined 1\\n   ethtool -L \u003cinterface name\u003e rx 0 tx 0 combined 4\\n\\nSplat looks like:\\nkernel BUG at net/core/dev.c:6666!\\nOops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\\nCPU: 3 PID: 1057 Comm: kworker/3:3 Not tainted 6.10.0-rc2+ #16\\nWorkqueue: events ionic_lif_deferred_work [ionic]\\nRIP: 0010:napi_enable+0x3b/0x40\\nCode: 48 89 c2 48 83 e2 f6 80 b9 61 09 00 00 00 74 0d 48 83 bf 60 01 00 00 00 74 03 80 ce 01 f0 4f\\nRSP: 0018:ffffb6ed83227d48 EFLAGS: 00010246\\nRAX: 0000000000000000 RBX: ffff97560cda0828 RCX: 0000000000000029\\nRDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff97560cda0a28\\nRBP: ffffb6ed83227d50 R08: 0000000000000400 R09: 0000000000000001\\nR10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000\\nR13: ffff97560ce3c1a0 R14: 0000000000000000 R15: ffff975613ba0a20\\nFS:  0000000000000000(0000) GS:ffff975d5f780000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 00007f8f734ee200 CR3: 0000000103e50000 CR4: 00000000007506f0\\nPKRU: 55555554\\nCall Trace:\\n \u003cTASK\u003e\\n ? die+0x33/0x90\\n ? do_trap+0xd9/0x100\\n ? napi_enable+0x3b/0x40\\n ? do_error_trap+0x83/0xb0\\n ? napi_enable+0x3b/0x40\\n ? napi_enable+0x3b/0x40\\n ? exc_invalid_op+0x4e/0x70\\n ? napi_enable+0x3b/0x40\\n ? asm_exc_invalid_op+0x16/0x20\\n ? napi_enable+0x3b/0x40\\n ionic_qcq_enable+0xb7/0x180 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\\n ionic_start_queues+0xc4/0x290 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\\n ionic_link_status_check+0x11c/0x170 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\\n ionic_lif_deferred_work+0x129/0x280 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\\n process_one_work+0x145/0x360\\n worker_thread+0x2bb/0x3d0\\n ? __pfx_worker_thread+0x10/0x10\\n kthread+0xcc/0x100\\n ? __pfx_kthread+0x10/0x10\\n ret_from_fork+0x2d/0x50\\n ? __pfx_kthread+0x10/0x10\\n ret_from_fork_asm+0x1a/0x30\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ionic: corrige el use after de netif_napi_del() Cuando se inician las colas, se llama a netif_napi_add() y napi_enable(). Si hay 4 colas y solo se utilizan 3 colas para la configuraci\u00f3n actual, solo se deben registrar y habilitar napi de 3 colas. ionic_qcq_enable() comprueba si el puntero .poll no es NULL para habilitar solo el napi de la cola de uso. netif_napi_add() no registrar\u00e1 el napi de las colas no utilizadas, por lo que el puntero .poll indica NULL. Pero no pudo distinguir si el napi no estaba registrado o no porque netif_napi_del() no restablece el puntero .poll a NULL. Entonces, ionic_qcq_enable() llama a napi_enable() para la cola, que netif_napi_del() cancel\u00f3 el registro. Reproductor: ethtool -L  rx 1 tx 1 combinado 0 ethtool -L  rx 0 tx 0 combinado 1 ethtool -L  rx 0 tx 0 combinado 4 Splat se parece a: kernel ERROR en net/ n\u00facleo/dev.c:6666! Vaya: c\u00f3digo de operaci\u00f3n no v\u00e1lido: 0000 [#1] PREEMPT SMP NOPTI CPU: 3 PID: 1057 Comm: kworker/3:3 No contaminado 6.10.0-rc2+ #16 Cola de trabajo: eventos ionic_lif_deferred_work [ionic] RIP: 0010:napi_enable+0x3b/ 0x40 C\u00f3digo: 48 89 c2 48 83 e2 f6 80 b9 61 09 00 00 00 74 0d 48 83 bf 60 01 00 00 00 74 03 80 ce 01 f0 4f RSP: 0018:ffffb6ed83227d48 EFLAGS: 10246 RAX: 0000000000000000 RBX: ffff97560cda0828 RCX: 0000000000000029 RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff97560cda0a28 RBP: ffffb6ed83227d50 R08: 0000000000000400 R09: 00000000001 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: ffff97560ce3c1a0 R14: 0000000000000000 R15: 13ba0a20 FS: 0000000000000000(0000) GS:ffff975d5f780000(0000) knlGS :0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8f734ee200 CR3: 0000000103e50000 CR4: 00000000007506f0 PKRU: 5555554 Seguimiento de llamadas: ? morir+0x33/0x90? do_trap+0xd9/0x100? napi_enable+0x3b/0x40? do_error_trap+0x83/0xb0? napi_enable+0x3b/0x40? napi_enable+0x3b/0x40? exc_invalid_op+0x4e/0x70? napi_enable+0x3b/0x40? asm_exc_invalid_op+0x16/0x20? napi_enable+0x3b/0x40 ionic_qcq_enable+0xb7/0x180 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8] ionic_start_queues+0xc4/0x290 [ionic 59bdfc8a035436e1c4224 ff7d10789e3f14643f8] ionic_link_status_check+0x11c/0x170 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8] ionic_lif_deferred_work+0x129/0x280 [ionic 59bdfc8a03543 6e1c4224ff7d10789e3f14643f8] proceso_one_work+0x145/0x360 trabajador_thread+0x2bb/ 0x3d0? __pfx_worker_thread+0x10/0x10 kthread+0xcc/0x100 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2d/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/ethernet/pensando/ionic/ionic_lif.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"0f3154e6bcb354968cc04f7cd86ce466f7b9a814\",\"lessThan\":\"0d19267cb150e8f76ade210e16ee820a77f684e7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0f3154e6bcb354968cc04f7cd86ce466f7b9a814\",\"lessThan\":\"ff9c2a9426ecf5b9631e9fd74993b357262387d6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0f3154e6bcb354968cc04f7cd86ce466f7b9a814\",\"lessThan\":\"8edd18dab443863e9e48f084e7f123fca3065e4e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0f3154e6bcb354968cc04f7cd86ce466f7b9a814\",\"lessThan\":\"60cd714871cd5a683353a355cbb17a685245cf84\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0f3154e6bcb354968cc04f7cd86ce466f7b9a814\",\"lessThan\":\"183ebc167a8a19e916b885d4bb61a3491991bfa5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0f3154e6bcb354968cc04f7cd86ce466f7b9a814\",\"lessThan\":\"a87d72b37b9ec2c1e18fe36b09241d8b30334a2e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0f3154e6bcb354968cc04f7cd86ce466f7b9a814\",\"lessThan\":\"79f18a41dd056115d685f3b0a419c7cd40055e13\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/ethernet/pensando/ionic/ionic_lif.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.4\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.4\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.279\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.221\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.162\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.95\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.35\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.9.6\",\"lessThanOrEqual\":\"6.9.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\",\"affectedData\":[{\"vendor\":\"Siemens\",\"product\":\"RUGGEDCOM RST2428P\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.1\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"RUGGEDCOM RST2428P\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XCM-/XRM-/XCH-/XRH-300 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.1\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XCM-/XRM-/XCH-/XRH-300 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"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:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-09-10T17:07:07.252622Z\",\"id\":\"CVE-2024-39502\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T18:48:24+00:00",
      "cve": "CVE-2024-39502",
      "id": "CVE-2024-39502",
      "initial_release_date": "2024-07-12T00:00:00+00:00",
      "product_status:fixed": "1220",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "55",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ionic: fix use after netif_napi_del()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-39502.json",
      "version": "3"
    },
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\"6.6.35\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.6\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/ethernet/pensando/ionic/ionic_lif.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/0d19267cb150e8f76ade210e16ee820a77f684e7\"}, {\"url\": \"https://git.kernel.org/stable/c/ff9c2a9426ecf5b9631e9fd74993b357262387d6\"}, {\"url\": \"https://git.kernel.org/stable/c/8edd18dab443863e9e48f084e7f123fca3065e4e\"}, {\"url\": \"https://git.kernel.org/stable/c/60cd714871cd5a683353a355cbb17a685245cf84\"}, {\"url\": \"https://git.kernel.org/stable/c/183ebc167a8a19e916b885d4bb61a3491991bfa5\"}, {\"url\": \"https://git.kernel.org/stable/c/a87d72b37b9ec2c1e18fe36b09241d8b30334a2e\"}, {\"url\": \"https://git.kernel.org/stable/c/79f18a41dd056115d685f3b0a419c7cd40055e13\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nionic: fix use after netif_napi_del()\\n\\nWhen queues are started, netif_napi_add() and napi_enable() are called.\\nIf there are 4 queues and only 3 queues are used for the current\\nconfiguration, only 3 queues\u0027 napi should be registered and enabled.\\nThe ionic_qcq_enable() checks whether the .poll pointer is not NULL for\\nenabling only the using queue\u0027 napi. Unused queues\u0027 napi will not be\\nregistered by netif_napi_add(), so the .poll pointer indicates NULL.\\nBut it couldn\u0027t distinguish whether the napi was unregistered or not\\nbecause netif_napi_del() doesn\u0027t reset the .poll pointer to NULL.\\nSo, ionic_qcq_enable() calls napi_enable() for the queue, which was\\nunregistered by netif_napi_del().\\n\\nReproducer:\\n   ethtool -L \u003cinterface name\u003e rx 1 tx 1 combined 0\\n   ethtool -L \u003cinterface name\u003e rx 0 tx 0 combined 1\\n   ethtool -L \u003cinterface name\u003e rx 0 tx 0 combined 4\\n\\nSplat looks like:\\nkernel BUG at net/core/dev.c:6666!\\nOops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\\nCPU: 3 PID: 1057 Comm: kworker/3:3 Not tainted 6.10.0-rc2+ #16\\nWorkqueue: events ionic_lif_deferred_work [ionic]\\nRIP: 0010:napi_enable+0x3b/0x40\\nCode: 48 89 c2 48 83 e2 f6 80 b9 61 09 00 00 00 74 0d 48 83 bf 60 01 00 00 00 74 03 80 ce 01 f0 4f\\nRSP: 0018:ffffb6ed83227d48 EFLAGS: 00010246\\nRAX: 0000000000000000 RBX: ffff97560cda0828 RCX: 0000000000000029\\nRDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff97560cda0a28\\nRBP: ffffb6ed83227d50 R08: 0000000000000400 R09: 0000000000000001\\nR10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000\\nR13: ffff97560ce3c1a0 R14: 0000000000000000 R15: ffff975613ba0a20\\nFS:  0000000000000000(0000) GS:ffff975d5f780000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 00007f8f734ee200 CR3: 0000000103e50000 CR4: 00000000007506f0\\nPKRU: 55555554\\nCall Trace:\\n \u003cTASK\u003e\\n ? die+0x33/0x90\\n ? do_trap+0xd9/0x100\\n ? napi_enable+0x3b/0x40\\n ? do_error_trap+0x83/0xb0\\n ? napi_enable+0x3b/0x40\\n ? napi_enable+0x3b/0x40\\n ? exc_invalid_op+0x4e/0x70\\n ? napi_enable+0x3b/0x40\\n ? asm_exc_invalid_op+0x16/0x20\\n ? napi_enable+0x3b/0x40\\n ionic_qcq_enable+0xb7/0x180 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\\n ionic_start_queues+0xc4/0x290 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\\n ionic_link_status_check+0x11c/0x170 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\\n ionic_lif_deferred_work+0x129/0x280 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\\n process_one_work+0x145/0x360\\n worker_thread+0x2bb/0x3d0\\n ? __pfx_worker_thread+0x10/0x10\\n kthread+0xcc/0x100\\n ? __pfx_kthread+0x10/0x10\\n ret_from_fork+0x2d/0x50\\n ? __pfx_kthread+0x10/0x10\\n ret_from_fork_asm+0x1a/0x30\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.279\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.221\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.162\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.95\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.35\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.6\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"5.4\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:17:10.886Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-39502\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T09:17:10.886Z\", \"dateReserved\": \"2024-06-25T14:23:23.752Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-07-12T12:20:35.635Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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

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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.