From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f78.google.com (mail-ot1-f78.google.com [209.85.210.78]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A9D3C35677D for ; Sat, 30 May 2026 20:57:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.78 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780174647; cv=none; b=fXyvgcM4QYf8GL5Q9AEJ7Ir+CcSZVriuDDVTTRBcD9qSLg5xGDiLsLBRSnRiZfl+VDMU/xoqXWA0xnLDaHFe30zcrP1XTtLt8+UXO3sOe69bV8y/BVixuS09hieBmXUbck25+vVLti8KcOpUHj8Law9M4+o4Cdda0uOjJi09bXU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780174647; c=relaxed/simple; bh=x9XptYzkS0OkjDLmo3HFzDKjn6JaQFGBGCp0SsokgMg=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=DMIcQtZB213VQjwNNR0AbDb61Y/hSgQZ01ASQmcxYz2o0864aUBzHELiusDh0UofQfcxA4Nu73dfeOQdDNMty1hHauggqTEDR5QlhK4xsXxRJuXwLbL290QBvdsG2dhMk/MCo82tl7M18ZVii4buDvyhXHQcy6rOuIQMV3GG/GA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.210.78 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-ot1-f78.google.com with SMTP id 46e09a7af769-7e6b5fe5484so169419a34.1 for ; Sat, 30 May 2026 13:57:24 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780174643; x=1780779443; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=TFO42tYpiiCLtgSoeyOHL39wBhqoRauG4K/xR+OLdpI=; b=Ghvg8CZTOSLgRurd7F3jN/S0u06l6i+VGUOfLYYf0MRy3yt0OWjJzLmay0YMKpXG4/ 8itPtfHOzipy/CVTZbLKhLfVdXV2+fu3G/cOemkahSPg8Fq3NOaO16xbGSQZnFF5F3yA bj/O0kDo2JlsprW1wk5QBQ0PR/X9pyjnrlyaUpV+CRGybN7BF/LBwt+gA2y6Wd4iInPY tdtANSfoxBIxOoBVE5bd42Ei8sqvJzJ+u3RhKhAasbXilL3/rRVvrgWwCZ8dt1hZWlrH cloR85UGrqAeEOgY2RYN6QNxv8KVduQosMcLA4VJWeamirUZl0OCn3OWF3DEff/Lit5q HhwA== X-Forwarded-Encrypted: i=1; AFNElJ8FGkG9ZCwXedov8rUSAyEnbYIsrlaVKwAFMYyEufutjYkmSJJ7eiAYw2UAPmqruo/NvGRzkAumCsIykzmijQ==@vger.kernel.org X-Gm-Message-State: AOJu0YyGxxecW7wHxVS5mdEz3FJzgPElDeiJ8+oSMbA9GTMSYUajOHwI R0TV3Sr40uHBpllxGPiMWnn9LOT2YZlsco4COCPIqPw89UQlcfIVWFzRKMMfkPhGpYIZubd15pv BYh5GQ5dT0Ido/i3xpfY8RRxACer3ViwRIu4ClPkjciRhuFOBnAoApAbG8cQ= Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:1627:b0:69d:8bac:f57d with SMTP id 006d021491bc7-69e04389831mr3099699eaf.26.1780174643472; Sat, 30 May 2026 13:57:23 -0700 (PDT) Date: Sat, 30 May 2026 13:57:23 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a1b4f33.fbc46276.d3ed.0459.GAE@google.com> Subject: [syzbot] [wireless?] UBSAN: shift-out-of-bounds in ieee80211_parse_tx_radiotap From: syzbot To: johannes@sipsolutions.net, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" 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: 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 ---[ end trace ]--- --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup