general protection fault, probably for non-canonical address 0xfbd59c0000000020: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0xdead000000000100-0xdead000000000107] CPU: 0 PID: 8471 Comm: syz-executor679 Not tainted 5.11.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ieee80211_chanctx_num_assigned+0xb1/0x140 net/mac80211/chan.c:22 Code: a8 f6 ff ff 48 39 c5 74 3b 49 bd 00 00 00 00 00 fc ff df e8 c1 76 14 f9 48 8d bb 58 09 00 00 41 83 c4 01 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 75 68 48 8b 83 58 09 00 00 48 8d 98 a8 f6 ff ff 48 RSP: 0018:ffffc900015df330 EFLAGS: 00010212 RAX: 1bd5a00000000020 RBX: deacfffffffff7a8 RCX: 0000000000000000 RDX: ffff888017650000 RSI: ffffffff885e5a9f RDI: dead000000000100 RBP: ffff888021788d20 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff885e5afb R11: 0000000000000000 R12: 0000000000000002 R13: dffffc0000000000 R14: ffff888021788d00 R15: 0000000000000000 FS: 00000000020c23c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004b6110 CR3: 000000001380d000 CR4: 0000000000350ef0 Call Trace: ieee80211_assign_vif_chanctx+0x7b8/0x1230 net/mac80211/chan.c:746 __ieee80211_vif_release_channel+0x236/0x430 net/mac80211/chan.c:1619 ieee80211_vif_release_channel+0x117/0x220 net/mac80211/chan.c:1833 ieee80211_ibss_disconnect+0x44e/0x7b0 net/mac80211/ibss.c:735 ieee80211_ibss_leave+0x12/0xe0 net/mac80211/ibss.c:1871 rdev_leave_ibss net/wireless/rdev-ops.h:545 [inline] __cfg80211_leave_ibss+0x19a/0x4c0 net/wireless/ibss.c:212 cfg80211_leave_ibss+0x57/0x80 net/wireless/ibss.c:230 cfg80211_change_iface+0x7f2/0xf10 net/wireless/util.c:1047 nl80211_set_interface+0x65c/0x8d0 net/wireless/nl80211.c:3839 genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:739 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:800 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2345 ___sys_sendmsg+0xf3/0x170 net/socket.c:2399 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2432 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x4415b9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 00 00 90 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 c4 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe1aab43c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000000dd13 RCX: 00000000004415b9 RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1aab43fc R13: 431bde82d7b634db R14: 00007ffe1aab4410 R15: 00000000004004b8 Modules linked in: ---[ end trace acd08ff3c58f91de ]--- RIP: 0010:ieee80211_chanctx_num_assigned+0xb1/0x140 net/mac80211/chan.c:22 Code: a8 f6 ff ff 48 39 c5 74 3b 49 bd 00 00 00 00 00 fc ff df e8 c1 76 14 f9 48 8d bb 58 09 00 00 41 83 c4 01 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 75 68 48 8b 83 58 09 00 00 48 8d 98 a8 f6 ff ff 48 RSP: 0018:ffffc900015df330 EFLAGS: 00010212 RAX: 1bd5a00000000020 RBX: deacfffffffff7a8 RCX: 0000000000000000 RDX: ffff888017650000 RSI: ffffffff885e5a9f RDI: dead000000000100 RBP: ffff888021788d20 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff885e5afb R11: 0000000000000000 R12: 0000000000000002 R13: dffffc0000000000 R14: ffff888021788d00 R15: 0000000000000000 FS: 00000000020c23c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5e2c48a080 CR3: 000000001380d000 CR4: 0000000000350ef0