------------[ cut here ]------------ intf 08:02:11:00:00:00 [link=0]: bad STA 08:02:11:00:00:01 bandwidth 20 MHz (0) > channel config 1 MHz (8) WARNING: drivers/net/wireless/virtual/mac80211_hwsim_main.c:2839 at mac80211_hwsim_sta_rc_update+0x6d8/0x8c0 drivers/net/wireless/virtual/mac80211_hwsim_main.c:2836, CPU#1: syz.1.2991/13889 Modules linked in: CPU: 1 UID: 0 PID: 13889 Comm: syz.1.2991 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 RIP: 0010:mac80211_hwsim_sta_rc_update+0x736/0x8c0 drivers/net/wireless/virtual/mac80211_hwsim_main.c:2836 Code: 85 d2 00 00 00 45 8b 36 44 89 f7 e8 c4 99 fe ff 48 8b 7c 24 20 48 8b 74 24 28 89 ea 48 8b 4c 24 10 41 89 d8 45 89 f9 41 56 50 <67> 48 0f b9 3a 48 83 c4 10 e9 08 ff ff ff e8 d7 de 96 fa 90 0f 0b RSP: 0018:ffffc90003186ee8 EFLAGS: 00010283 RAX: 0000000000000001 RBX: 0000000000000014 RCX: ffff888032e00ed0 RDX: 0000000000000000 RSI: ffff88805720f4c2 RDI: ffffffff9064f0b0 RBP: 0000000000000000 R08: 0000000000000014 R09: 0000000000000000 R10: 000000000000000d R11: 0000000000000002 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000008 R15: 0000000000000000 FS: 00007ff32d3866c0(0000) GS:ffff888125054000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001080 CR3: 000000003437e000 CR4: 00000000003526f0 Call Trace: mac80211_hwsim_sta_add+0xc4/0x370 drivers/net/wireless/virtual/mac80211_hwsim_main.c:2859 drv_sta_add net/mac80211/driver-ops.h:470 [inline] drv_sta_state+0x885/0x17a0 net/mac80211/driver-ops.c:155 sta_info_insert_drv_state net/mac80211/sta_info.c:865 [inline] sta_info_insert_finish net/mac80211/sta_info.c:973 [inline] sta_info_insert_rcu+0x171f/0x2780 net/mac80211/sta_info.c:1050 sta_info_insert+0x16/0xc0 net/mac80211/sta_info.c:1055 ieee80211_add_station+0x4bf/0x700 net/mac80211/cfg.c:2703 rdev_add_station+0xfc/0x290 net/wireless/rdev-ops.h:201 nl80211_new_station+0x1b4e/0x1fd0 net/wireless/nl80211.c:9517 genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x7bb/0x940 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775 __sock_sendmsg net/socket.c:790 [inline] ____sys_sendmsg+0x54e/0x850 net/socket.c:2684 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2738 __sys_sendmsg net/socket.c:2770 [inline] __do_sys_sendmsg net/socket.c:2775 [inline] __se_sys_sendmsg net/socket.c:2773 [inline] __x64_sys_sendmsg+0x1b1/0x290 net/socket.c:2773 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff32c59de99 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff32d386028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007ff32c825fa0 RCX: 00007ff32c59de99 RDX: 0000000000000000 RSI: 0000200000001080 RDI: 0000000000000006 RBP: 00007ff32c633eaf R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ff32c826038 R14: 00007ff32c825fa0 R15: 00007ffe1b1ce778 ---------------- Code disassembly (best guess): 0: 85 d2 test %edx,%edx 2: 00 00 add %al,(%rax) 4: 00 45 8b add %al,-0x75(%rbp) 7: 36 44 89 f7 ss mov %r14d,%edi b: e8 c4 99 fe ff call 0xfffe99d4 10: 48 8b 7c 24 20 mov 0x20(%rsp),%rdi 15: 48 8b 74 24 28 mov 0x28(%rsp),%rsi 1a: 89 ea mov %ebp,%edx 1c: 48 8b 4c 24 10 mov 0x10(%rsp),%rcx 21: 41 89 d8 mov %ebx,%r8d 24: 45 89 f9 mov %r15d,%r9d 27: 41 56 push %r14 29: 50 push %rax * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 48 83 c4 10 add $0x10,%rsp 33: e9 08 ff ff ff jmp 0xffffff40 38: e8 d7 de 96 fa call 0xfa96df14 3d: 90 nop 3e: 0f 0b ud2