Hello, syzbot found the following issue on: HEAD commit: 4003c9e78778 Merge tag 'net-6.14-rc7' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1763e04c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=317038cbd53153e8 dashboard link: https://syzkaller.appspot.com/bug?extid=aaf0488c83d1d5f4f029 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12c5ddb0580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16d2b03f980000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-4003c9e7.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ce870bfb8bac/vmlinux-4003c9e7.xz kernel image: https://storage.googleapis.com/syzbot-assets/195015b7ce43/bzImage-4003c9e7.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+aaf0488c83d1d5f4f029@xxxxxxxxxxxxxxxxxxxxxxxxx RBP: 0000000000000001 R08: 00007ffc330c8967 R09: 000055557c17e4c0 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004 R13: 00007fb851c063fc R14: 00007fb851bd6334 R15: 00007fb851c063e4 </TASK> INFO: trying to register non-static key. The code is fine but needs lockdep annotation, or maybe you didn't initialize this object before use? turning off the locking correctness validator. CPU: 0 UID: 0 PID: 5935 Comm: syz-executor550 Not tainted 6.14.0-rc6-syzkaller-00103-g4003c9e78778 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 assign_lock_key kernel/locking/lockdep.c:983 [inline] register_lock_class+0xc39/0x1240 kernel/locking/lockdep.c:1297 __lock_acquire+0x135/0x3c40 kernel/locking/lockdep.c:5103 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5851 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162 cfg80211_dev_free+0x30/0x3d0 net/wireless/core.c:1196 device_release+0xa1/0x240 drivers/base/core.c:2568 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1e4/0x5a0 lib/kobject.c:737 put_device+0x1f/0x30 drivers/base/core.c:3774 wiphy_free net/wireless/core.c:1224 [inline] wiphy_new_nm+0x1c1f/0x2160 net/wireless/core.c:562 ieee80211_alloc_hw_nm+0x1b7a/0x2260 net/mac80211/main.c:835 mac80211_hwsim_new_radio+0x1d6/0x54e0 drivers/net/wireless/virtual/mac80211_hwsim.c:5185 hwsim_new_radio_nl+0xb42/0x12b0 drivers/net/wireless/virtual/mac80211_hwsim.c:6242 genl_family_rcv_msg_doit+0x202/0x2f0 net/netlink/genetlink.c:1115 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2533 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1882 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:733 [inline] ____sys_sendmsg+0xaaf/0xc90 net/socket.c:2573 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2627 __sys_sendmsg+0x16e/0x220 net/socket.c:2659 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb851b909e9 Code: 48 83 c4 28 c3 e8 c7 1b 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc330c8bc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007ffc330c8c20 RCX: 00007fb851b909e9 RDX: 0000000020000000 RSI: 0000400000000140 RDI: 0000000000000003 RBP: 0000000000000001 R08: 00007ffc330c8967 R09: 000055557c17e4c0 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004 R13: 00007fb851c063fc R14: 00007fb851bd6334 R15: 00007fb851c063e4 </TASK> ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5935 at net/wireless/core.c:1197 cfg80211_dev_free+0x2e7/0x3d0 net/wireless/core.c:1197 Modules linked in: CPU: 0 UID: 0 PID: 5935 Comm: syz-executor550 Not tainted 6.14.0-rc6-syzkaller-00103-g4003c9e78778 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:cfg80211_dev_free+0x2e7/0x3d0 net/wireless/core.c:1197 Code: 00 00 49 8b bd e0 08 00 00 e8 85 7a 69 f7 4c 89 ef 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f e9 6f 7a 69 f7 e8 8a 0c 11 f7 90 <0f> 0b 90 e9 6f fd ff ff 4c 89 f7 e8 b9 2b 74 f7 e9 aa fe ff ff 4c RSP: 0018:ffffc90003e371b8 EFLAGS: 00010093 RAX: 0000000000000000 RBX: 0000000000000293 RCX: ffffffff81972d2d RDX: ffff88802721c880 RSI: ffffffff8aa8e456 RDI: ffffc90003e37128 RBP: ffff8880121b06a8 R08: 0000000000000001 R09: fffff520007c6e25 R10: 0000000000000003 R11: 0000000000000001 R12: ffff8880121b06b8 R13: ffff8880121b0000 R14: ffff8881050d1b80 R15: 0000000000000000 FS: 000055557c17d380(0000) GS:ffff88806a600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000400000001ac0 CR3: 00000000122c0000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> device_release+0xa1/0x240 drivers/base/core.c:2568 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1e4/0x5a0 lib/kobject.c:737 put_device+0x1f/0x30 drivers/base/core.c:3774 wiphy_free net/wireless/core.c:1224 [inline] wiphy_new_nm+0x1c1f/0x2160 net/wireless/core.c:562 ieee80211_alloc_hw_nm+0x1b7a/0x2260 net/mac80211/main.c:835 mac80211_hwsim_new_radio+0x1d6/0x54e0 drivers/net/wireless/virtual/mac80211_hwsim.c:5185 hwsim_new_radio_nl+0xb42/0x12b0 drivers/net/wireless/virtual/mac80211_hwsim.c:6242 genl_family_rcv_msg_doit+0x202/0x2f0 net/netlink/genetlink.c:1115 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2533 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1882 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:733 [inline] ____sys_sendmsg+0xaaf/0xc90 net/socket.c:2573 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2627 __sys_sendmsg+0x16e/0x220 net/socket.c:2659 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb851b909e9 Code: 48 83 c4 28 c3 e8 c7 1b 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc330c8bc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007ffc330c8c20 RCX: 00007fb851b909e9 RDX: 0000000020000000 RSI: 0000400000000140 RDI: 0000000000000003 RBP: 0000000000000001 R08: 00007ffc330c8967 R09: 000055557c17e4c0 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004 R13: 00007fb851c063fc R14: 00007fb851bd6334 R15: 00007fb851c063e4 </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 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
