audit: type=1400 audit(1596458781.579:8): avc: denied { execmem } for pid=6484 comm="syz-executor155" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 IPVS: ftp: loaded support on port[0] = 21 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 1226 Comm: kworker/u5:0 Not tainted 4.19.136-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: hci0 hci_rx_work RIP: 0010:hci_phy_link_complete_evt.isra.0+0x24a/0x7a0 net/bluetooth/hci_event.c:4682 Code: 48 c1 ea 03 80 3c 02 00 0f 85 60 05 00 00 48 8b 9d 28 08 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 23 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b RSP: 0018:ffff8880a75b7a78 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff867c041f RDX: 0000000000000002 RSI: ffffffff867c042c RDI: 0000000000000010 RBP: ffff8880a515a940 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8880a4d51f40 R14: 00000000000000c8 R15: ffff8880a4d51010 FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559a65e15bf0 CR3: 000000009efe2000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hci_event_packet+0x1973/0x858f net/bluetooth/hci_event.c:5898 hci_rx_work+0x46b/0xa90 net/bluetooth/hci_core.c:4359 process_one_work+0x864/0x1570 kernel/workqueue.c:2155 worker_thread+0x64c/0x1130 kernel/workqueue.c:2298 kthread+0x30b/0x410 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Modules linked in: ---[ end trace d9d6aecd8dbba138 ]--- RIP: 0010:hci_phy_link_complete_evt.isra.0+0x24a/0x7a0 net/bluetooth/hci_event.c:4682 Code: 48 c1 ea 03 80 3c 02 00 0f 85 60 05 00 00 48 8b 9d 28 08 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 23 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b RSP: 0018:ffff8880a75b7a78 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff867c041f RDX: 0000000000000002 RSI: ffffffff867c042c RDI: 0000000000000010 RBP: ffff8880a515a940 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8880a4d51f40 R14: 00000000000000c8 R15: ffff8880a4d51010 FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559a65e15bf0 CR3: 000000009b3fa000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400