------------[ cut here ]------------ WARNING: CPU: 2 PID: 25194 at net/mac80211/chan.c:2021 ieee80211_link_release_channel+0x19f/0x200 net/mac80211/chan.c:2021 Modules linked in: CPU: 2 PID: 25194 Comm: syz-executor.3 Not tainted 6.6.0-rc5-syzkaller-00157-ge8c127b05766 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:ieee80211_link_release_channel+0x19f/0x200 net/mac80211/chan.c:2021 Code: ff ff ff ff 48 8d b8 f0 1c 00 00 e8 ab 9c 79 00 31 ff 41 89 c5 89 c6 e8 8f 6e c1 f7 45 85 ed 0f 85 6d ff ff ff e8 11 73 c1 f7 <0f> 0b e9 61 ff ff ff 48 c7 c7 98 5c ce 8e e8 2e 2b 17 f8 e9 3a ff RSP: 0018:ffffc90025197348 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff8880497163c0 RCX: ffffc9000499a000 RDX: 0000000000040000 RSI: ffffffff89c653af RDI: 0000000000000005 RBP: ffff888049714c80 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888049715598 R13: 0000000000000000 R14: ffff8880497168b0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:00000000f7f0ab40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000002fa22000 CR3: 0000000068988000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_teardown_sdata net/mac80211/iface.c:802 [inline] ieee80211_if_change_type+0x322/0x8b0 net/mac80211/iface.c:1919 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_sendmsg+0x6ac/0x940 net/socket.c:2558 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2612 __sys_sendmsg+0x117/0x1e0 net/socket.c:2641 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: 0023:0xf7f0f579 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:00000000f7f0a5ac EFLAGS: 00000292 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000100 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 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