------------[ cut here ]------------ UBSAN: shift-out-of-bounds in net/mac80211/tx.c:2174:30 shift exponent 85 is too large for 64-bit type 'unsigned long' CPU: 1 UID: 0 PID: 5985 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 ubsan_epilogue+0xa/0x30 lib/ubsan.c:233 __ubsan_handle_shift_out_of_bounds+0x385/0x410 lib/ubsan.c:494 ieee80211_parse_tx_radiotap+0xadb/0x1950 net/mac80211/tx.c:2174 ieee80211_monitor_start_xmit+0xb1f/0x1250 net/mac80211/tx.c:2451 __netdev_start_xmit include/linux/netdevice.h:5290 [inline] netdev_start_xmit include/linux/netdevice.h:5299 [inline] xmit_one net/core/dev.c:3865 [inline] dev_hard_start_xmit+0x2d8/0x870 net/core/dev.c:3881 __dev_queue_xmit+0x168f/0x38a0 net/core/dev.c:4830 packet_snd net/packet/af_packet.c:3077 [inline] packet_sendmsg+0x3ed0/0x5110 net/packet/af_packet.c:3109 sock_sendmsg_nosec+0x18f/0x1d0 net/socket.c:737 __sock_sendmsg net/socket.c:752 [inline] __sys_sendto+0x3ff/0x590 net/socket.c:2221 __do_sys_sendto net/socket.c:2228 [inline] __se_sys_sendto net/socket.c:2224 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2224 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4613b9bf79 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:00007fff51563ac8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f4613e15fa0 RCX: 00007f4613b9bf79 RDX: 0000000000000038 RSI: 0000200000000640 RDI: 0000000000000007 RBP: 00007f4613c327e0 R08: 0000200000000380 R09: 0000000000000014 R10: 0000000004000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4613e15fac R14: 00007f4613e15fa0 R15: 00007f4613e15fa0 ---[ end trace ]---