Hello, syzbot found the following issue on: HEAD commit: e88c4cfcb7b8 Merge tag 'for-6.9-rc5-tag' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12aea028980000 kernel config: https://syzkaller.appspot.com/x/.config?x=545d4b3e07d6ccbc dashboard link: https://syzkaller.appspot.com/bug?extid=bc0f5b92cc7091f45fb6 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/cc2737f2e766/disk-e88c4cfc.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c53581da70d1/vmlinux-e88c4cfc.xz kernel image: https://storage.googleapis.com/syzbot-assets/c90cde48e98f/bzImage-e88c4cfc.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+bc0f5b92cc7091f45fb6@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3146 at net/mac80211/chan.c:501 _ieee80211_change_chanctx+0x363/0x11c0 net/mac80211/chan.c:501 Modules linked in: CPU: 0 PID: 3146 Comm: syz-executor.2 Not tainted 6.9.0-rc5-syzkaller-00042-ge88c4cfcb7b8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:_ieee80211_change_chanctx+0x363/0x11c0 net/mac80211/chan.c:501 Code: 0f 8e 1a 0c 00 00 8b 7b 08 48 c7 c6 00 e3 4f 8c 49 89 fc e8 5f d5 33 f7 41 83 fc 05 76 0f 41 83 fc 0d 74 09 e8 0e da 33 f7 90 <0f> 0b 90 e8 05 da 33 f7 48 8b 74 24 10 ba 01 00 00 00 48 8b 3c 24 RSP: 0018:ffffc90003376e20 EFLAGS: 00010287 RAX: 0000000000001a65 RBX: ffffc90003376fd0 RCX: ffffc90004012000 RDX: 0000000000040000 RSI: ffffffff8a59e842 RDI: 0000000000000005 RBP: ffff88807b6f80b6 R08: 0000000000000005 R09: 000000000000000d R10: 0000000000000006 R11: 0000000000000000 R12: 0000000000000006 R13: 0000000000000000 R14: ffff88805de532f8 R15: ffff88807b6f8000 FS: 00007f75cdf286c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d823000 CR3: 0000000040486000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000003 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: <TASK> ieee80211_change_chanctx net/mac80211/chan.c:547 [inline] ieee80211_recalc_chanctx_chantype+0x69c/0x870 net/mac80211/chan.c:773 ieee80211_link_change_chanreq+0x7aa/0xd70 net/mac80211/chan.c:1920 ieee80211_set_ap_chanwidth+0x181/0x320 net/mac80211/cfg.c:4343 rdev_set_ap_chanwidth net/wireless/rdev-ops.h:1136 [inline] __nl80211_set_channel+0x4cb/0x990 net/wireless/nl80211.c:3418 nl80211_set_wiphy+0xcc8/0x2d00 net/wireless/nl80211.c:3575 genl_family_rcv_msg_doit+0x202/0x2f0 net/netlink/genetlink.c:1113 genl_family_rcv_msg net/netlink/genetlink.c:1193 [inline] genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1208 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2559 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1217 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0xab5/0xc90 net/socket.c:2584 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2638 __sys_sendmsg+0x117/0x1f0 net/socket.c:2667 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f75cd27dea9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f75cdf280c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f75cd3abf80 RCX: 00007f75cd27dea9 RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000004 RBP: 00007f75cd2ca4a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f75cd3abf80 R15: 00007ffd05dbb2b8 </TASK> --- 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@xxxxxxxxxxxxxxxx. 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 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
