IPVS: set_ctl: invalid protocol: 50 172.20.20.187:20003 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access IPVS: set_ctl: invalid protocol: 50 172.20.20.187:20003 general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 4.19.0+ #281 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'loop2' (0000000050ba65df): kobject_uevent_env Workqueue: events smc_tcp_listen_work RIP: 0010:inet_accept+0x106/0x9e0 net/ipv4/af_inet.c:734 kobject: 'loop2' (0000000050ba65df): fill_kobj_path: path = '/devices/virtual/block/loop2' Code: 09 80 fa 03 0f 8e 54 07 00 00 41 c7 86 40 ff ff ff ea ff ff ff 48 8d 78 28 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 56 07 00 00 48 b9 00 00 00 00 00 fc ff df 48 8b RSP: 0018:ffff8801d9437478 EFLAGS: 00010206 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000005 RDX: dffffc0000000000 RSI: ffffffff86a72843 RDI: 0000000000000028 RBP: ffff8801d94375a0 R08: ffff8801d94225c0 R09: ffffed003b286e6a R10: ffffed003b286e6a R11: 0000000000000003 R12: ffff8801c45c9580 syz-executor2 (7540) used greatest stack depth: 13944 bytes left R13: ffff8801d94374b8 R14: ffff8801d9437578 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004cc350 CR3: 00000001bb57d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kobject: 'loop3' (00000000d2ccd3e7): kobject_uevent_env kobject: 'loop3' (00000000d2ccd3e7): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000050ba65df): kobject_uevent_env kernel_accept+0x136/0x310 net/socket.c:3250 smc_clcsock_accept net/smc/af_smc.c:834 [inline] smc_tcp_listen_work+0x218/0x11c0 net/smc/af_smc.c:1302 kobject: 'loop2' (0000000050ba65df): fill_kobj_path: path = '/devices/virtual/block/loop2' process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153 kobject: 'loop3' (00000000d2ccd3e7): kobject_uevent_env kobject: 'loop3' (00000000d2ccd3e7): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000050ba65df): kobject_uevent_env kobject: 'loop2' (0000000050ba65df): fill_kobj_path: path = '/devices/virtual/block/loop2' worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kobject: 'loop2' (0000000050ba65df): kobject_uevent_env kobject: 'loop2' (0000000050ba65df): fill_kobj_path: path = '/devices/virtual/block/loop2' kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:350 Modules linked in: kobject: 'loop3' (00000000d2ccd3e7): kobject_uevent_env ---[ end trace cfb3021679262e8a ]--- kobject: 'gre0' (00000000033eae65): kobject_cleanup, parent (null) kobject: 'gre0' (00000000033eae65): auto cleanup 'remove' event RIP: 0010:inet_accept+0x106/0x9e0 net/ipv4/af_inet.c:734 kobject: 'loop3' (00000000d2ccd3e7): fill_kobj_path: path = '/devices/virtual/block/loop3' Code: 09 80 fa 03 0f 8e 54 07 00 00 41 c7 86 40 ff ff ff ea ff ff ff 48 8d 78 28 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 56 07 00 00 48 b9 00 00 00 00 00 fc ff df 48 8b kobject: 'loop5' (0000000035752012): kobject_uevent_env kobject: 'gre0' (00000000033eae65): kobject_uevent_env kobject: 'gre0' (00000000033eae65): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'loop5' (0000000035752012): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (0000000050ba65df): kobject_uevent_env RSP: 0018:ffff8801d9437478 EFLAGS: 00010206 kobject: 'gre0' (00000000033eae65): calling ktype release kobject: 'loop2' (0000000050ba65df): fill_kobj_path: path = '/devices/virtual/block/loop2' RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000005 kobject: 'gre0': free name RDX: dffffc0000000000 RSI: ffffffff86a72843 RDI: 0000000000000028 RBP: ffff8801d94375a0 R08: ffff8801d94225c0 R09: ffffed003b286e6a R10: ffffed003b286e6a R11: 0000000000000003 R12: ffff8801c45c9580 R13: ffff8801d94374b8 R14: ffff8801d9437578 R15: dffffc0000000000 kobject: 'loop1' (0000000023172328): kobject_uevent_env FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 kobject: 'loop1' (0000000023172328): fill_kobj_path: path = '/devices/virtual/block/loop1' CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff4eedbb7c CR3: 00000001bb57d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400