------------[ cut here ]------------ WARNING: CPU: 1 PID: 7470 at net/mac80211/ibss.c:488 ieee80211_ibss_csa_beacon+0x732/0x8c0 net/mac80211/ibss.c:488 Modules linked in: CPU: 1 PID: 7470 Comm: syz-executor.5 Not tainted 6.7.0-syzkaller-00562-g9f8413c4a66f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:ieee80211_ibss_csa_beacon+0x732/0x8c0 net/mac80211/ibss.c:488 Code: 48 c7 c2 00 22 0c 8c be ec 02 00 00 48 c7 c7 60 22 0c 8c c6 05 8d 97 0c 05 01 e8 59 ae 70 f7 e9 f8 fa ff ff e8 4f df 90 f7 90 <0f> 0b 90 bb ea ff ff ff e9 19 fd ff ff e8 ac 7c e7 f7 e9 f0 f9 ff RSP: 0018:ffffc9000a12f088 EFLAGS: 00010283 RAX: 000000000000430b RBX: ffff88807de58c80 RCX: ffffc9000b05d000 RDX: 0000000000040000 RSI: ffffffff89f6e851 RDI: ffffffff8b2efec0 RBP: 0000000000000002 R08: 0000000000000001 R09: fffffbfff23e43ed R10: ffffffff91f21f6f R11: 0000000000000002 R12: 0000000000000000 R13: ffffc9000a12f178 R14: ffff88807de594c8 R15: ffff88807e4f0e20 FS: 0000000000000000(0000) GS:ffff8880b9900000(0063) knlGS:00000000f7f43b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000031526000 CR3: 000000007d145000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_set_csa_beacon net/mac80211/cfg.c:3802 [inline] __ieee80211_channel_switch net/mac80211/cfg.c:3928 [inline] ieee80211_channel_switch+0x1350/0x2900 net/mac80211/cfg.c:3972 rdev_channel_switch net/wireless/rdev-ops.h:1107 [inline] nl80211_channel_switch+0xd97/0x13f0 net/wireless/nl80211.c:10267 genl_family_rcv_msg_doit+0x1fc/0x2e0 net/netlink/genetlink.c:972 genl_family_rcv_msg net/netlink/genetlink.c:1052 [inline] genl_rcv_msg+0x561/0x800 net/netlink/genetlink.c:1067 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2545 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076 netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline] netlink_unicast+0x53b/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:2584 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2638 __sys_sendmsg+0x117/0x1e0 net/socket.c:2667 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x79/0x110 arch/x86/entry/common.c:321 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:346 entry_SYSENTER_compat_after_hwframe+0x70/0x7a RIP: 0023:0xf7f48579 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:00000000f7f435ac EFLAGS: 00000292 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000020000200 RDX: 0000000000040880 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