{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2024-39502",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-06-25T14:23:23.752Z",
        "datePublished": "2024-07-12T12:20:35.635Z",
        "dateUpdated": "2024-09-11T17:34:40.350Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-07-15T06:50:48.621Z"
            },
            "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' napi should be registered and enabled.\nThe ionic_qcq_enable() checks whether the .poll pointer is not NULL for\nenabling only the using queue' napi. Unused queues' napi will not be\nregistered by netif_napi_add(), so the .poll pointer indicates NULL.\nBut it couldn't distinguish whether the napi was unregistered or not\nbecause netif_napi_del() doesn't 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 <interface name> rx 1 tx 1 combined 0\n   ethtool -L <interface name> rx 0 tx 0 combined 1\n   ethtool -L <interface name> 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 <TASK>\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"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/pensando/ionic/ionic_lif.c"
                    ],
                    "versions": [
                        {
                            "version": "0f3154e6bcb3",
                            "lessThan": "0d19267cb150",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0f3154e6bcb3",
                            "lessThan": "ff9c2a9426ec",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0f3154e6bcb3",
                            "lessThan": "8edd18dab443",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0f3154e6bcb3",
                            "lessThan": "60cd714871cd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0f3154e6bcb3",
                            "lessThan": "183ebc167a8a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0f3154e6bcb3",
                            "lessThan": "a87d72b37b9e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0f3154e6bcb3",
                            "lessThan": "79f18a41dd05",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/pensando/ionic/ionic_lif.c"
                    ],
                    "versions": [
                        {
                            "version": "5.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.4",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.4.279",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.10.221",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.15.162",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.1.95",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.6.35",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.9.6",
                            "lessThanOrEqual": "6.9.*",
                            "status": "unaffected",
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                        {
                            "version": "6.10",
                            "lessThanOrEqual": "*",
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                            "versionType": "original_commit_for_fix"
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