------------[ cut here ]------------ WARNING: CPU: 1 PID: 9071 at net/mac80211/offchannel.c:403 ieee80211_start_next_roc net/mac80211/offchannel.c:403 [inline] WARNING: CPU: 1 PID: 9071 at net/mac80211/offchannel.c:403 ieee80211_start_next_roc+0x1fa/0x250 net/mac80211/offchannel.c:385 Modules linked in: CPU: 1 PID: 9071 Comm: syz-executor.1 Not tainted 6.6.0-rc6-syzkaller-00039-g06dc10eae55b #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:ieee80211_start_next_roc net/mac80211/offchannel.c:403 [inline] RIP: 0010:ieee80211_start_next_roc+0x1fa/0x250 net/mac80211/offchannel.c:385 Code: e0 23 00 00 48 89 df 48 89 c2 e8 a1 df 0d 00 5b 5d e9 8a 43 d2 f7 e8 85 43 d2 f7 48 89 df e8 dd 71 ff ff eb 8d e8 76 43 d2 f7 <0f> 0b eb 84 48 c7 c7 d8 5e ce 8e e8 96 fb 27 f8 e9 2d fe ff ff e8 RSP: 0018:ffffc90029f27248 EFLAGS: 00010287 RAX: 000000000001d2b4 RBX: ffff888075ad0e20 RCX: ffffc90003ba9000 RDX: 0000000000040000 RSI: ffffffff89b586ca RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001 R13: ffff888075ad2968 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88802c700000(0063) knlGS:00000000f7efeb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007fdf6dd51780 CR3: 0000000025dad000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __ieee80211_scan_completed+0x4fa/0xca0 net/mac80211/scan.c:492 ieee80211_scan_cancel+0x1ba/0x850 net/mac80211/scan.c:1291 ieee80211_do_stop+0x18f8/0x2040 net/mac80211/iface.c:461 ieee80211_runtime_change_iftype net/mac80211/iface.c:1876 [inline] ieee80211_if_change_type+0x3de/0x8b0 net/mac80211/iface.c:1914 ieee80211_change_iface+0x5b/0x450 net/mac80211/cfg.c:217 rdev_change_virtual_intf net/wireless/rdev-ops.h:74 [inline] cfg80211_change_iface+0x5b8/0xdf0 net/wireless/util.c:1165 nl80211_set_interface+0x708/0x9b0 net/wireless/nl80211.c:4222 genl_family_rcv_msg_doit+0x1fc/0x2e0 net/netlink/genetlink.c:971 genl_family_rcv_msg net/netlink/genetlink.c:1051 [inline] genl_rcv_msg+0x55c/0x800 net/netlink/genetlink.c:1066 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2545 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1075 netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline] netlink_unicast+0x536/0x810 net/netlink/af_netlink.c:1368 netlink_sendmsg+0x93c/0xe40 net/netlink/af_netlink.c:1910 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xd5/0x180 net/socket.c:745 __sys_sendto+0x255/0x340 net/socket.c:2194 __do_compat_sys_socketcall+0x5df/0x700 net/compat.c:475 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x61/0xe0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7f03579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f7efd420 EFLAGS: 00000293 ORIG_RAX: 0000000000000066 RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00000000f7efd434 RDX: 0000000000000000 RSI: 00000000f7efd5a0 RDI: 00000000f7353ff4 RBP: 00000000f7efd5a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi