{"id":"DEBIAN-CVE-2025-38450","details":"In the Linux kernel, the following vulnerability has been resolved:  wifi: mt76: mt7925: prevent NULL pointer dereference in mt7925_sta_set_decap_offload()  Add a NULL check for msta-\u003evif before accessing its members to prevent a kernel panic in AP mode deployment. This also fix the issue reported in [1].  The crash occurs when this function is triggered before the station is fully initialized. The call trace shows a page fault at mt7925_sta_set_decap_offload() due to accessing resources when msta-\u003evif is NULL.  Fix this by adding an early return if msta-\u003evif is NULL and also check wcid.sta is ready. This ensures we only proceed with decap offload configuration when the station's state is properly initialized.  [14739.655703] Unable to handle kernel paging request at virtual address ffffffffffffffa0 [14739.811820] CPU: 0 UID: 0 PID: 895854 Comm: hostapd Tainted: G [14739.821394] Tainted: [C]=CRAP, [O]=OOT_MODULE [14739.825746] Hardware name: Raspberry Pi 4 Model B Rev 1.1 (DT) [14739.831577] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [14739.838538] pc : mt7925_sta_set_decap_offload+0xc0/0x1b8 [mt7925_common] [14739.845271] lr : mt7925_sta_set_decap_offload+0x58/0x1b8 [mt7925_common] [14739.851985] sp : ffffffc085efb500 [14739.855295] x29: ffffffc085efb500 x28: 0000000000000000 x27: ffffff807803a158 [14739.862436] x26: ffffff8041ececb8 x25: 0000000000000001 x24: 0000000000000001 [14739.869577] x23: 0000000000000001 x22: 0000000000000008 x21: ffffff8041ecea88 [14739.876715] x20: ffffff8041c19ca0 x19: ffffff8078031fe0 x18: 0000000000000000 [14739.883853] x17: 0000000000000000 x16: ffffffe2aeac1110 x15: 000000559da48080 [14739.890991] x14: 0000000000000001 x13: 0000000000000000 x12: 0000000000000000 [14739.898130] x11: 0a10020001008e88 x10: 0000000000001a50 x9 : ffffffe26457bfa0 [14739.905269] x8 : ffffff8042013bb0 x7 : ffffff807fb6cbf8 x6 : dead000000000100 [14739.912407] x5 : dead000000000122 x4 : ffffff80780326c8 x3 : 0000000000000000 [14739.919546] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffff8041ececb8 [14739.926686] Call trace: [14739.929130]  mt7925_sta_set_decap_offload+0xc0/0x1b8 [mt7925_common] [14739.935505]  ieee80211_check_fast_rx+0x19c/0x510 [mac80211] [14739.941344]  _sta_info_move_state+0xe4/0x510 [mac80211] [14739.946860]  sta_info_move_state+0x1c/0x30 [mac80211] [14739.952116]  sta_apply_auth_flags.constprop.0+0x90/0x1b0 [mac80211] [14739.958708]  sta_apply_parameters+0x234/0x5e0 [mac80211] [14739.964332]  ieee80211_add_station+0xdc/0x190 [mac80211] [14739.969950]  nl80211_new_station+0x46c/0x670 [cfg80211] [14739.975516]  genl_family_rcv_msg_doit+0xdc/0x150 [14739.980158]  genl_rcv_msg+0x218/0x298 [14739.983830]  netlink_rcv_skb+0x64/0x138 [14739.987670]  genl_rcv+0x40/0x60 [14739.990816]  netlink_unicast+0x314/0x380 [14739.994742]  netlink_sendmsg+0x198/0x3f0 [14739.998664]  __sock_sendmsg+0x64/0xc0 [14740.002324]  ____sys_sendmsg+0x260/0x298 [14740.006242]  ___sys_sendmsg+0xb4/0x110","modified":"2026-08-27T23:05:30.001067305Z","published":"2025-07-25T16:15:30.560Z","upstream":["CVE-2025-38450"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-38450"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.41-1"}]}],"versions":["6.12.38-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-38450.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.16.3-1"}]}],"versions":["6.12.100-1","6.12.101-1","6.12.105-1","6.12.38-1","6.12.41-1","6.12.43-1","6.12.43-1~bpo12+1","6.12.48-1","6.12.57-1","6.12.57-1~bpo12+1","6.12.63-1","6.12.63-1~bpo12+1","6.12.69-1","6.12.69-1~bpo12+1","6.12.73-1","6.12.73-1~bpo12+1","6.12.74-1","6.12.74-2","6.12.74-2~bpo12+1","6.12.85-1","6.12.85-1~bpo12+1","6.12.86-1","6.12.86-1~bpo12+1","6.12.88-1","6.12.88-1~bpo12+1","6.12.90-1","6.12.90-1~bpo12+1","6.12.90-2","6.12.90-2~bpo12+1","6.12.94-1","6.12.94-1~bpo12+1","6.12.95-1","6.12.95-1~bpo12+1","6.12.96-1","6.13.10-1~exp1","6.13.11-1~exp1","6.13.2-1~exp1","6.13.3-1~exp1","6.13.4-1~exp1","6.13.5-1~exp1","6.13.6-1~exp1","6.13.7-1~exp1","6.13.8-1~exp1","6.13.9-1~exp1","6.13~rc6-1~exp1","6.13~rc7-1~exp1","6.14.3-1~exp1","6.14.5-1~exp1","6.14.6-1~exp1","6.15-1~exp1","6.15.1-1~exp1","6.15.2-1~exp1","6.15.3-1~exp1","6.15.4-1~exp1","6.15.5-1~exp1","6.15.6-1~exp1","6.15~rc7-1~exp1","6.16-1~exp1","6.16.1-1~exp1","6.16.3-1~bpo13+1","6.16~rc7-1~exp1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-38450.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}