{"id":"CVE-2024-40911","summary":"wifi: cfg80211: Lock wiphy in cfg80211_get_station","details":"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.","modified":"2026-03-20T12:37:22.841638Z","published":"2024-07-12T12:20:49.796Z","related":["ALSA-2024:5928","ALSA-2024:7000","ALSA-2024:7001","SUSE-SU-2024:2894-1","SUSE-SU-2024:2939-1","SUSE-SU-2024:2947-1","SUSE-SU-2024:3194-1","SUSE-SU-2024:3195-1","SUSE-SU-2024:3383-1","SUSE-SU-2025:20044-1","SUSE-SU-2025:20047-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40911.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0ccc63958d8373e15a69f4f8069f3e78f7f3898a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/43e1eefb0b2094e2281150d87d09e8bc872b9fba"},{"type":"WEB","url":"https://git.kernel.org/stable/c/642f89daa34567d02f312d03e41523a894906dae"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6d540b0317901535275020bd4ac44fac6439ca76"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dfd84ce41663be9ca3f69bd657c45f49b69344d9"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40911.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-40911"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7406353d43c8e2faf478721e87aeb6f2f9685de0"},{"fixed":"dfd84ce41663be9ca3f69bd657c45f49b69344d9"},{"fixed":"6d540b0317901535275020bd4ac44fac6439ca76"},{"fixed":"0ccc63958d8373e15a69f4f8069f3e78f7f3898a"},{"fixed":"43e1eefb0b2094e2281150d87d09e8bc872b9fba"},{"fixed":"642f89daa34567d02f312d03e41523a894906dae"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-40911.json"}}],"schema_version":"1.7.5"}