snd_dummy snd_dummy.0: control 2:16:0:syz0:-3 is already present ------------[ 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 5 MHz (6) WARNING: drivers/net/wireless/virtual/mac80211_hwsim.c:2654 at mac80211_hwsim_sta_rc_update+0x6f5/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2651, CPU#0: syz.9.1243/17409 Modules linked in: CPU: 0 UID: 0 PID: 17409 Comm: syz.9.1243 Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:mac80211_hwsim_sta_rc_update+0x6f5/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2651 Code: 71 17 00 00 48 c7 c7 e0 7d 2e 8c 48 8b 74 24 28 89 ea 48 8b 4c 24 10 41 89 d8 45 89 f9 41 56 50 e8 e0 1c 86 fa 48 83 c4 10 90 <0f> 0b 90 90 e9 0c ff ff ff e8 3d 95 c2 fa 90 0f 0b 90 e9 fe fe ff RSP: 0000:ffffc90012d36fd0 EFLAGS: 00010282 RAX: 22d0e07143d33500 RBX: 0000000000000014 RCX: 0000000000080000 RDX: ffffc9000fc39000 RSI: 0000000000004ab5 RDI: 0000000000004ab6 RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa7f0 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000006 R15: 0000000000000000 FS: 00007f7e9b1f66c0(0000) GS:ffff888125be3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc518f52000 CR3: 00000000328ce000 CR4: 00000000003526f0 Call Trace: mac80211_hwsim_sta_add+0xa3/0x310 drivers/net/wireless/virtual/mac80211_hwsim.c:2671 drv_sta_add net/mac80211/driver-ops.h:470 [inline] drv_sta_state+0x8c1/0x1840 net/mac80211/driver-ops.c:155 sta_info_insert_drv_state net/mac80211/sta_info.c:824 [inline] sta_info_insert_finish net/mac80211/sta_info.c:932 [inline] sta_info_insert_rcu+0xd32/0x1940 net/mac80211/sta_info.c:1009 sta_info_insert+0x16/0xc0 net/mac80211/sta_info.c:1014 rdev_add_station+0x108/0x290 net/wireless/rdev-ops.h:201 nl80211_new_station+0x1755/0x1b70 net/wireless/nl80211.c:8369 genl_family_rcv_msg_doit+0x215/0x300 net/netlink/genetlink.c:1115 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x60e/0x790 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x205/0x470 net/netlink/af_netlink.c:2552 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896 sock_sendmsg_nosec net/socket.c:714 [inline] __sock_sendmsg+0x219/0x270 net/socket.c:729 ____sys_sendmsg+0x505/0x830 net/socket.c:2614 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668 __sys_sendmsg net/socket.c:2700 [inline] __do_sys_sendmsg net/socket.c:2705 [inline] __se_sys_sendmsg net/socket.c:2703 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7e9d38e9a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7e9b1f6038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f7e9d5b5fa0 RCX: 00007f7e9d38e9a9 RDX: 0000000000000000 RSI: 0000200000001080 RDI: 0000000000000004 RBP: 00007f7e9d410d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f7e9d5b5fa0 R15: 00007ffe2c89ee28