------------[ cut here ]------------ WARNING: CPU: 1 PID: 8542 at net/mac80211/ibss.c:503 ieee80211_ibss_csa_beacon+0x544/0x620 net/mac80211/ibss.c:503 Modules linked in: CPU: 0 PID: 8542 Comm: syz.0.1267 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:ieee80211_ibss_csa_beacon+0x544/0x620 net/mac80211/ibss.c:503 Code: f8 c6 05 84 50 30 04 01 48 c7 c7 90 69 39 8b be 01 02 00 00 48 c7 c2 20 6a 39 8b e8 06 0c 6c 00 e9 62 fe ff ff e8 dc 3a 33 f8 <0f> 0b b8 ea ff ff ff e9 7a ff ff ff e8 cb 3a 33 f8 0f 0b e9 23 fb RSP: 0018:ffffc900034eefd0 EFLAGS: 00010283 RAX: ffffffff8945fb34 RBX: ffff88805fc79ad8 RCX: 0000000000080000 RDX: ffffc9000c961000 RSI: 0000000000001015 RDI: 0000000000001016 RBP: dffffc0000000000 R08: ffffffff901d618f R09: 1ffffffff203ac31 R10: dffffc0000000000 R11: fffffbfff203ac32 R12: ffff88805fc79288 R13: ffff888022518620 R14: ffff88805fc78c80 R15: 1ffff1100bf8f251 FS: 00007f6d612ab6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f215936d680 CR3: 0000000022c9c000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_set_csa_beacon+0x6b0/0x9c0 net/mac80211/cfg.c:3383 __ieee80211_channel_switch net/mac80211/cfg.c:3513 [inline] ieee80211_channel_switch+0x7dc/0xcc0 net/mac80211/cfg.c:3551 rdev_channel_switch+0xeb/0x240 net/wireless/rdev-ops.h:1088 nl80211_channel_switch+0x8b8/0xea0 net/wireless/nl80211.c:9389 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline] genl_family_rcv_msg net/netlink/genetlink.c:775 [inline] genl_rcv_msg+0xcea/0xf90 net/netlink/genetlink.c:792 netlink_rcv_skb+0x1f5/0x440 net/netlink/af_netlink.c:2507 genl_rcv+0x24/0x40 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x774/0x920 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x8ba/0xbe0 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:706 [inline] __sock_sendmsg net/socket.c:718 [inline] ____sys_sendmsg+0x5b7/0x8f0 net/socket.c:2445 ___sys_sendmsg+0x236/0x2e0 net/socket.c:2499 __sys_sendmsg net/socket.c:2528 [inline] __do_sys_sendmsg net/socket.c:2537 [inline] __se_sys_sendmsg+0x1af/0x290 net/socket.c:2535 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f6d63051e59 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:00007f6d612ab028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f6d632cafa0 RCX: 00007f6d63051e59 RDX: 0000000000044000 RSI: 0000200000001640 RDI: 0000000000000004 RBP: 00007f6d630e7d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f6d632cb038 R14: 00007f6d632cafa0 R15: 00007ffc8d493238