mac80211_hwsim hwsim15 syzkaller0: left promiscuous mode mac80211_hwsim hwsim15 syzkaller0: left allmulticast mode ------------[ cut here ]------------ hwsim_get_chanwidth(bw) > hwsim_get_chanwidth(confbw) WARNING: drivers/net/wireless/virtual/mac80211_hwsim.c:2235 at mac80211_hwsim_tx+0x16c2/0x2b10 drivers/net/wireless/virtual/mac80211_hwsim.c:2235, CPU#2: syz.6.1283/10018 Modules linked in: CPU: 2 UID: 0 PID: 10018 Comm: syz.6.1283 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:mac80211_hwsim_tx+0x16c2/0x2b10 drivers/net/wireless/virtual/mac80211_hwsim.c:2235 Code: 03 80 3c 02 00 0f 85 85 13 00 00 49 8b 86 00 38 00 00 c7 44 24 20 00 00 00 00 48 89 44 24 18 e9 bc eb ff ff e8 2f a8 da fa 90 <0f> 0b 90 e9 15 f1 ff ff e8 21 a8 da fa 90 0f 0b 90 48 8b 3c 24 4c RSP: 0018:ffffc9000557f1c8 EFLAGS: 00010287 RAX: 0000000000000517 RBX: 0000000000000014 RCX: ffffc90028150000 RDX: 0000000000080000 RSI: ffffffff872df8f1 RDI: ffff888032d32540 RBP: ffff88803250f570 R08: 0000000000000004 R09: 0000000000000014 R10: 0000000000000028 R11: 0000000000000001 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000028 R15: 0000000000000020 FS: 00007f52d26d06c0(0000) GS:ffff8880d6586000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2db0bff8 CR3: 0000000046129000 CR4: 0000000000352ef0 DR0: 0000000000000001 DR1: 00000000000001f8 DR2: 0000000000000003 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: drv_tx net/mac80211/driver-ops.h:38 [inline] ieee80211_tx_frags+0x5c9/0xa70 net/mac80211/tx.c:1746 __ieee80211_tx+0x145/0x5b0 net/mac80211/tx.c:1801 ieee80211_tx+0x336/0x460 net/mac80211/tx.c:1984 ieee80211_xmit+0x30f/0x3e0 net/mac80211/tx.c:2076 ieee80211_monitor_start_xmit+0xdd1/0x1280 net/mac80211/tx.c:2467 __netdev_start_xmit include/linux/netdevice.h:5368 [inline] netdev_start_xmit include/linux/netdevice.h:5377 [inline] xmit_one net/core/dev.c:3888 [inline] dev_hard_start_xmit+0x128/0x7a0 net/core/dev.c:3904 sch_direct_xmit+0x1b2/0xc60 net/sched/sch_generic.c:372 qdisc_restart net/sched/sch_generic.c:437 [inline] __qdisc_run+0x52d/0x1af0 net/sched/sch_generic.c:445 qdisc_run include/net/pkt_sched.h:120 [inline] qdisc_run include/net/pkt_sched.h:117 [inline] __dev_xmit_skb net/core/dev.c:4292 [inline] __dev_queue_xmit+0x30ed/0x4950 net/core/dev.c:4831 dev_queue_xmit include/linux/netdevice.h:3418 [inline] packet_xmit+0x243/0x310 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3082 [inline] packet_sendmsg+0x319a/0x5100 net/packet/af_packet.c:3114 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] __sys_sendto+0x468/0x4b0 net/socket.c:2265 __do_sys_sendto net/socket.c:2272 [inline] __se_sys_sendto net/socket.c:2268 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2268 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f52d179ce59 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:00007f52d26d0028 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f52d1a15fa0 RCX: 00007f52d179ce59 RDX: 0000000000000030 RSI: 0000200000000640 RDI: 0000000000000007 RBP: 00007f52d1832d6f R08: 0000200000000380 R09: 0000000000000014 R10: 0000000004000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f52d1a16038 R14: 00007f52d1a15fa0 R15: 00007ffd49678ff8