Hello, syzbot found the following issue on: HEAD commit: 9f67672a Merge tag 'ext4_for_linus' of git://git.kernel.or.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=136256a5d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=5427806e749e612b dashboard link: https://syzkaller.appspot.com/bug?extid=4c4ffd1e1094dae61035 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17a4d5a3d00000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4c4ffd1e1094dae61035@xxxxxxxxxxxxxxxxxxxxxxxxx 2021/05/01 15:27:37 executed programs: 23 BUG: memory leak unreferenced object 0xffff8881131d9100 (size 232): comm "kworker/u5:7", pid 8471, jiffies 4294965136 (age 11.710s) hex dump (first 32 bytes): d0 94 18 27 81 88 ff ff d0 94 18 27 81 88 ff ff ...'.......'.... 00 00 00 00 00 00 00 00 00 94 18 27 81 88 ff ff ...........'.... backtrace: [<ffffffff83678b3f>] __alloc_skb+0x20f/0x280 net/core/skbuff.c:413 [<ffffffff83c9cedd>] alloc_skb include/linux/skbuff.h:1107 [inline] [<ffffffff83c9cedd>] mgmt_cmd_complete+0x3d/0x1a0 net/bluetooth/mgmt_util.c:146 [<ffffffff83c5d46e>] send_settings_rsp net/bluetooth/mgmt.c:1126 [inline] [<ffffffff83c5d46e>] settings_rsp+0x5e/0x170 net/bluetooth/mgmt.c:1279 [<ffffffff83c9d1c6>] mgmt_pending_foreach+0x76/0xa0 net/bluetooth/mgmt_util.c:226 [<ffffffff83c68c3c>] __mgmt_power_off+0x5c/0x1e0 net/bluetooth/mgmt.c:8575 [<ffffffff83c392e9>] hci_dev_do_close+0x579/0x720 net/bluetooth/hci_core.c:1776 [<ffffffff8125d109>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275 [<ffffffff8125d9f9>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421 [<ffffffff81265268>] kthread+0x178/0x1b0 kernel/kthread.c:313 [<ffffffff8100227f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 BUG: memory leak unreferenced object 0xffff888126cdce00 (size 512): comm "kworker/u5:7", pid 8471, jiffies 4294965136 (age 11.710s) hex dump (first 32 bytes): 01 00 00 00 07 00 05 00 00 82 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff83678a0f>] kmalloc_reserve net/core/skbuff.c:354 [inline] [<ffffffff83678a0f>] __alloc_skb+0xdf/0x280 net/core/skbuff.c:425 [<ffffffff83c9cedd>] alloc_skb include/linux/skbuff.h:1107 [inline] [<ffffffff83c9cedd>] mgmt_cmd_complete+0x3d/0x1a0 net/bluetooth/mgmt_util.c:146 [<ffffffff83c5d46e>] send_settings_rsp net/bluetooth/mgmt.c:1126 [inline] [<ffffffff83c5d46e>] settings_rsp+0x5e/0x170 net/bluetooth/mgmt.c:1279 [<ffffffff83c9d1c6>] mgmt_pending_foreach+0x76/0xa0 net/bluetooth/mgmt_util.c:226 [<ffffffff83c68c3c>] __mgmt_power_off+0x5c/0x1e0 net/bluetooth/mgmt.c:8575 [<ffffffff83c392e9>] hci_dev_do_close+0x579/0x720 net/bluetooth/hci_core.c:1776 [<ffffffff8125d109>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275 [<ffffffff8125d9f9>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421 [<ffffffff81265268>] kthread+0x178/0x1b0 kernel/kthread.c:313 [<ffffffff8100227f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 --- 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. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
