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AJvYcCUrXUOTKXlzBLim6FXvdrIV0AJdxUUvH76qXlY5lp/9Ft7arfe2ojzBdoFNO/v/8JOPwrJN2q3xxVb5/821kw==@vger.kernel.org X-Gm-Message-State: AOJu0Yw+FY6o0EXJs4XeEfFFwBX4fqwXQ1aRTGKZuj6DdDcdGRkYsuEs IAH6u+7OvJ9Zukrmk0okJud4O7+1REK89bVTzJRN5kSGXji4X1xGrV+hUhpIhWC5t2qz1euJR8U pe9CmZMytysfHkcn7Ug+lBbToUqndHBU8VjRyppjDH0cfcV1+HY1h8styw0M= Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:20b:b0:67b:f24a:a53f with SMTP id 006d021491bc7-67c0dabe1e5mr119000eaf.24.1773769410643; Tue, 17 Mar 2026 10:43:30 -0700 (PDT) Date: Tue, 17 Mar 2026 10:43:30 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69b992c2.050a0220.248e02.0132.GAE@google.com> Subject: [syzbot] [wireless?] WARNING in cfg80211_chandef_create 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: b84a0ebe421c Add linux-next specific files for 20260313 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=11308216580000 kernel config: https://syzkaller.appspot.com/x/.config?x=e7280ad1f68b2dce dashboard link: https://syzkaller.appspot.com/bug?extid=d9f5fabbbcf4b377d01f 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=1090c8da580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=179338da580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/09145161a8a9/disk-b84a0ebe.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/b64c254e474c/vmlinux-b84a0ebe.xz kernel image: https://storage.googleapis.com/syzbot-assets/a7c33f5f7f45/bzImage-b84a0ebe.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d9f5fabbbcf4b377d01f@syzkaller.appspotmail.com ------------[ cut here ]------------ chan->band == NL80211_BAND_60GHZ || chan->band == NL80211_BAND_S1GHZ WARNING: net/wireless/chan.c:35 at cfg80211_chandef_create+0x99/0x3d0 net/wireless/chan.c:34, CPU#1: syz.0.17/6021 Modules linked in: CPU: 1 UID: 0 PID: 6021 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:cfg80211_chandef_create+0x99/0x3d0 net/wireless/chan.c:34 Code: 8b 26 4c 89 e7 48 c7 c6 20 78 26 90 e8 60 be ad f6 49 83 fc 04 74 0d 41 83 fc 02 75 12 e8 cf b8 ad f6 eb 05 e8 c8 b8 ad f6 90 <0f> 0b 90 eb 05 e8 bd b8 ad f6 89 ef 48 c7 c6 40 78 26 90 e8 2f be RSP: 0018:ffffc90003986f30 EFLAGS: 00010293 RAX: ffffffff8b193a38 RBX: ffffc900039870a0 RCX: ffff888032143d00 RDX: 0000000000000000 RSI: ffffffff90267820 RDI: 0000000000000004 RBP: 0000000000000002 R08: ffff888032143d00 R09: 0000000000000002 R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000004 R13: dffffc0000000000 R14: ffff888012a762f8 R15: ffffc900039870a8 FS: 0000555592955500(0000) GS:ffff888124ee0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbf5f187600 CR3: 0000000077436000 CR4: 00000000003526f0 Call Trace: _nl80211_parse_chandef+0x437/0x1300 net/wireless/nl80211.c:3637 __nl80211_set_channel+0x248/0x880 net/wireless/nl80211.c:3761 nl80211_set_wiphy+0x116b/0x2fa0 net/wireless/nl80211.c:-1 genl_family_rcv_msg_doit+0x22a/0x330 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x61c/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x80f/0x9b0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec+0x112/0x150 net/socket.c:796 __sock_sendmsg net/socket.c:811 [inline] ____sys_sendmsg+0x589/0x8c0 net/socket.c:2668 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2722 __sys_sendmsg net/socket.c:2754 [inline] __do_sys_sendmsg net/socket.c:2759 [inline] __se_sys_sendmsg net/socket.c:2757 [inline] __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2757 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: 0033:0x7fbf5f19c799 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:00007ffe1eb2d0b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fbf5f415fa0 RCX: 00007fbf5f19c799 RDX: 0000000000000000 RSI: 0000200000000040 RDI: 0000000000000004 RBP: 00007fbf5f232c99 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbf5f415fac R14: 00007fbf5f415fa0 R15: 00007fbf5f415fa0 --- 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