{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-50146",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Don't call cleanup on profile rollback failure\n\nWhen profile rollback fails in mlx5e_netdev_change_profile, the netdev\nprofile var is left set to NULL. Avoid a crash when unloading the driver\nby not calling profile->cleanup in such a case.\n\nThis was encountered while testing, with the original trigger that\nthe wq rescuer thread creation got interrupted (presumably due to\nCtrl+C-ing modprobe), which gets converted to ENOMEM (-12) by\nmlx5e_priv_init, the profile rollback also fails for the same reason\n(signal still active) so the profile is left as NULL, leading to a crash\nlater in _mlx5e_remove.\n\n [  732.473932] mlx5_core 0000:08:00.1: E-Switch: Unload vfs: mode(OFFLOADS), nvfs(2), necvfs(0), active vports(2)\n [  734.525513] workqueue: Failed to create a rescuer kthread for wq \"mlx5e\": -EINTR\n [  734.557372] mlx5_core 0000:08:00.1: mlx5e_netdev_init_profile:6235:(pid 6086): mlx5e_priv_init failed, err=-12\n [  734.559187] mlx5_core 0000:08:00.1 eth3: mlx5e_netdev_change_profile: new profile init failed, -12\n [  734.560153] workqueue: Failed to create a rescuer kthread for wq \"mlx5e\": -EINTR\n [  734.589378] mlx5_core 0000:08:00.1: mlx5e_netdev_init_profile:6235:(pid 6086): mlx5e_priv_init failed, err=-12\n [  734.591136] mlx5_core 0000:08:00.1 eth3: mlx5e_netdev_change_profile: failed to rollback to orig profile, -12\n [  745.537492] BUG: kernel NULL pointer dereference, address: 0000000000000008\n [  745.538222] #PF: supervisor read access in kernel mode\n<snipped>\n [  745.551290] Call Trace:\n [  745.551590]  <TASK>\n [  745.551866]  ? __die+0x20/0x60\n [  745.552218]  ? page_fault_oops+0x150/0x400\n [  745.555307]  ? exc_page_fault+0x79/0x240\n [  745.555729]  ? asm_exc_page_fault+0x22/0x30\n [  745.556166]  ? mlx5e_remove+0x6b/0xb0 [mlx5_core]\n [  745.556698]  auxiliary_bus_remove+0x18/0x30\n [  745.557134]  device_release_driver_internal+0x1df/0x240\n [  745.557654]  bus_remove_device+0xd7/0x140\n [  745.558075]  device_del+0x15b/0x3c0\n [  745.558456]  mlx5_rescan_drivers_locked.part.0+0xb1/0x2f0 [mlx5_core]\n [  745.559112]  mlx5_unregister_device+0x34/0x50 [mlx5_core]\n [  745.559686]  mlx5_uninit_one+0x46/0xf0 [mlx5_core]\n [  745.560203]  remove_one+0x4e/0xd0 [mlx5_core]\n [  745.560694]  pci_device_remove+0x39/0xa0\n [  745.561112]  device_release_driver_internal+0x1df/0x240\n [  745.561631]  driver_detach+0x47/0x90\n [  745.562022]  bus_remove_driver+0x84/0x100\n [  745.562444]  pci_unregister_driver+0x3b/0x90\n [  745.562890]  mlx5_cleanup+0xc/0x1b [mlx5_core]\n [  745.563415]  __x64_sys_delete_module+0x14d/0x2f0\n [  745.563886]  ? kmem_cache_free+0x1b0/0x460\n [  745.564313]  ? lockdep_hardirqs_on_prepare+0xe2/0x190\n [  745.564825]  do_syscall_64+0x6d/0x140\n [  745.565223]  entry_SYSCALL_64_after_hwframe+0x4b/0x53\n [  745.565725] RIP: 0033:0x7f1579b1288b"
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Linux",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Linux",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "3ef14e463f6ed0218710f56b97e1a7d0448784d2",
                                            "version_value": "db84cb4c8c565e6d4de84b23c2818b63991adfdd"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "5.12",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "5.12",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.1.123",
                                                        "lessThanOrEqual": "6.1.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.6.80",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.11.6",
                                                        "lessThanOrEqual": "6.11.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.12",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/db84cb4c8c565e6d4de84b23c2818b63991adfdd",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/db84cb4c8c565e6d4de84b23c2818b63991adfdd"
            },
            {
                "url": "https://git.kernel.org/stable/c/d6fe973c8873c998734a050f366b28facc03d32a",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/d6fe973c8873c998734a050f366b28facc03d32a"
            },
            {
                "url": "https://git.kernel.org/stable/c/3955b77494c3c7d14873b1db67e7e00c46a714db",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/3955b77494c3c7d14873b1db67e7e00c46a714db"
            },
            {
                "url": "https://git.kernel.org/stable/c/4dbc1d1a9f39c3711ad2a40addca04d07d9ab5d0",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/4dbc1d1a9f39c3711ad2a40addca04d07d9ab5d0"
            }
        ]
    },
    "generator": {
        "engine": "bippy-5f407fcff5a0"
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}