{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-40911",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: Lock wiphy in cfg80211_get_station\n\nWiphy should be locked before calling rdev_get_station() (see lockdep\nassert in ieee80211_get_station()).\n\nThis fixes the following kernel NULL dereference:\n\n Unable to handle kernel NULL pointer dereference at virtual address 0000000000000050\n Mem abort info:\n   ESR = 0x0000000096000006\n   EC = 0x25: DABT (current EL), IL = 32 bits\n   SET = 0, FnV = 0\n   EA = 0, S1PTW = 0\n   FSC = 0x06: level 2 translation fault\n Data abort info:\n   ISV = 0, ISS = 0x00000006\n   CM = 0, WnR = 0\n user pgtable: 4k pages, 48-bit VAs, pgdp=0000000003001000\n [0000000000000050] pgd=0800000002dca003, p4d=0800000002dca003, pud=08000000028e9003, pmd=0000000000000000\n Internal error: Oops: 0000000096000006 [#1] SMP\n Modules linked in: netconsole dwc3_meson_g12a dwc3_of_simple dwc3 ip_gre gre ath10k_pci ath10k_core ath9k ath9k_common ath9k_hw ath\n CPU: 0 PID: 1091 Comm: kworker/u8:0 Not tainted 6.4.0-02144-g565f9a3a7911-dirty #705\n Hardware name: RPT (r1) (DT)\n Workqueue: bat_events batadv_v_elp_throughput_metric_update\n pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : ath10k_sta_statistics+0x10/0x2dc [ath10k_core]\n lr : sta_set_sinfo+0xcc/0xbd4\n sp : ffff000007b43ad0\n x29: ffff000007b43ad0 x28: ffff0000071fa900 x27: ffff00000294ca98\n x26: ffff000006830880 x25: ffff000006830880 x24: ffff00000294c000\n x23: 0000000000000001 x22: ffff000007b43c90 x21: ffff800008898acc\n x20: ffff00000294c6e8 x19: ffff000007b43c90 x18: 0000000000000000\n x17: 445946354d552d78 x16: 62661f7200000000 x15: 57464f445946354d\n x14: 0000000000000000 x13: 00000000000000e3 x12: d5f0acbcebea978e\n x11: 00000000000000e3 x10: 000000010048fe41 x9 : 0000000000000000\n x8 : ffff000007b43d90 x7 : 000000007a1e2125 x6 : 0000000000000000\n x5 : ffff0000024e0900 x4 : ffff800000a0250c x3 : ffff000007b43c90\n x2 : ffff00000294ca98 x1 : ffff000006831920 x0 : 0000000000000000\n Call trace:\n  ath10k_sta_statistics+0x10/0x2dc [ath10k_core]\n  sta_set_sinfo+0xcc/0xbd4\n  ieee80211_get_station+0x2c/0x44\n  cfg80211_get_station+0x80/0x154\n  batadv_v_elp_get_throughput+0x138/0x1fc\n  batadv_v_elp_throughput_metric_update+0x1c/0xa4\n  process_one_work+0x1ec/0x414\n  worker_thread+0x70/0x46c\n  kthread+0xdc/0xe0\n  ret_from_fork+0x10/0x20\n Code: a9bb7bfd 910003fd a90153f3 f9411c40 (f9402814)\n\nThis happens because STA has time to disconnect and reconnect before\nbatadv_v_elp_throughput_metric_update() delayed work gets scheduled. In\nthis situation, ath10k_sta_state() can be in the middle of resetting\narsta data when the work queue get chance to be scheduled and ends up\naccessing it. Locking wiphy prevents that."
            }
        ]
    },
    "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": "7406353d43c8",
                                            "version_value": "dfd84ce41663"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "3.16",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "3.16",
                                                        "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",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.10",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/dfd84ce41663be9ca3f69bd657c45f49b69344d9",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/dfd84ce41663be9ca3f69bd657c45f49b69344d9"
            },
            {
                "url": "https://git.kernel.org/stable/c/6d540b0317901535275020bd4ac44fac6439ca76",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/6d540b0317901535275020bd4ac44fac6439ca76"
            },
            {
                "url": "https://git.kernel.org/stable/c/0ccc63958d8373e15a69f4f8069f3e78f7f3898a",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/0ccc63958d8373e15a69f4f8069f3e78f7f3898a"
            },
            {
                "url": "https://git.kernel.org/stable/c/43e1eefb0b2094e2281150d87d09e8bc872b9fba",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/43e1eefb0b2094e2281150d87d09e8bc872b9fba"
            },
            {
                "url": "https://git.kernel.org/stable/c/642f89daa34567d02f312d03e41523a894906dae",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/642f89daa34567d02f312d03e41523a894906dae"
            }
        ]
    },
    "generator": {
        "engine": "bippy-c9c4e1df01b2"
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}