[syzbot] [wireless?] UBSAN: shift-out-of-bounds in ieee80211_parse_tx_radiotap

[syzbot <syzbot+8e0622f6d9446420271f@syzkaller.appspotmail.com>]

Hello,

syzbot found the following issue on:

HEAD commit:    3e48a11675c5 Merge tag 'f2fs-for-7.0-rc1' of git://git.ker..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=126256e6580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=bdcbd6339981e22b
dashboard link: https://syzkaller.appspot.com/bug?extid=8e0622f6d9446420271f
compiler:       Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15fd6c02580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1026fe5a580000

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-3e48a116.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/0749cae3d374/vmlinux-3e48a116.xz
kernel image: https://storage.googleapis.com/syzbot-assets/425b8d5bc900/bzImage-3e48a116.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+8e0622f6d9446420271f@syzkaller.appspotmail.com

------------[ cut here ]------------
UBSAN: shift-out-of-bounds in net/mac80211/tx.c:2174:30
shift exponent 235 is too large for 64-bit type 'unsigned long'
CPU: 0 UID: 0 PID: 5454 Comm: syz.0.17 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
Call Trace:
 <TASK>
 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:5275 [inline]
 netdev_start_xmit include/linux/netdevice.h:5284 [inline]
 xmit_one net/core/dev.c:3864 [inline]
 dev_hard_start_xmit+0x2d8/0x870 net/core/dev.c:3880
 __dev_queue_xmit+0x168f/0x38a0 net/core/dev.c:4829
 packet_snd net/packet/af_packet.c:3077 [inline]
 packet_sendmsg+0x3eb6/0x50f0 net/packet/af_packet.c:3109
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 __sys_sendto+0x709/0x7a0 net/socket.c:2206
 __do_sys_sendto net/socket.c:2213 [inline]
 __se_sys_sendto net/socket.c:2209 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2209
 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: 0033:0x7f251db9bf79
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:00007fff388b1f78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f251de15fa0 RCX: 00007f251db9bf79
RDX: 0000000000000038 RSI: 0000200000000640 RDI: 0000000000000007
RBP: 00007f251dc327e0 R08: 0000200000000380 R09: 0000000000000014
R10: 0000000004000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f251de15fac R14: 00007f251de15fa0 R15: 00007f251de15fa0
 </TASK>
---[ end trace ]---


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