Killed process 8294 (syz-executor1) total-vm:70604kB, anon-rss:2212kB, file-rss:32640kB, shmem-rss:0kB oom_reaper: reaped process 8294 (syz-executor1), now anon-rss:0kB, file-rss:32768kB, shmem-rss:0kB 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: 0 PID: 31987 Comm: syz-executor0 Not tainted 4.20.0-rc6+ #371 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_del_entry_valid+0x84/0x100 lib/list_debug.c:51 Code: 0f 84 60 01 00 00 48 b8 00 02 00 00 00 00 ad de 49 39 c4 0f 84 39 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 5f 49 8b 14 24 48 39 da 0f 85 4e 01 00 00 49 8d 7d RSP: 0000:ffff88818278f280 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8881b7d160e8 RCX: ffffffff833e420e RDX: 0000000000000000 RSI: ffffffff833e3cc9 RDI: ffff8881b7d160f0 RBP: ffff88818278f298 R08: ffff8881d317e040 R09: fffff52006671800 R10: fffff52006671800 R11: ffffc9003338c003 R12: 0000000000000000 R13: 0000000000000000 R14: ffff88818278f680 R15: dffffc0000000000 FS: 000000000199b940(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000723ec0 CR3: 00000001c2caa000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: __list_del_entry include/linux/list.h:117 [inline] list_del include/linux/list.h:125 [inline] unlink_queue ipc/sem.c:786 [inline] freeary+0xbd1/0x1a40 ipc/sem.c:1160 free_ipcs+0x9f/0x1c0 ipc/namespace.c:112 sem_exit_ns+0x20/0x40 ipc/sem.c:237 free_ipc_ns ipc/namespace.c:120 [inline] put_ipc_ns+0x66/0x180 ipc/namespace.c:152 free_nsproxy+0xcf/0x220 kernel/nsproxy.c:180 switch_task_namespaces+0xb3/0xd0 kernel/nsproxy.c:229 exit_task_namespaces+0x17/0x20 kernel/nsproxy.c:234 do_exit+0x1ad1/0x26d0 kernel/exit.c:866 do_group_exit+0x177/0x440 kernel/exit.c:970 __do_sys_exit_group kernel/exit.c:981 [inline] __se_sys_exit_group kernel/exit.c:979 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:979 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457659 Code: Bad RIP value. RSP: 002b:0000000000a3fc88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000457659 RDX: 0000000000411030 RSI: 0000000000a44bf0 RDI: 0000000000000045 RBP: 00000000004bd071 R08: 000000000000000c R09: 0000000000000000 R10: 000000000199b940 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000014 R15: 0000000000000000 Modules linked in: ---[ end trace 6482393dc7e3d8a9 ]--- RIP: 0010:__list_del_entry_valid+0x84/0x100 lib/list_debug.c:51 Code: 0f 84 60 01 00 00 48 b8 00 02 00 00 00 00 ad de 49 39 c4 0f 84 39 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 5f 49 8b 14 24 48 39 da 0f 85 4e 01 00 00 49 8d 7d kobject: 'lo' (000000007749e87b): fill_kobj_path: path = '/devices/virtual/net/lo' RSP: 0000:ffff88818278f280 EFLAGS: 00010246 kobject: 'queues' (00000000b8aaa917): kobject_add_internal: parent: 'lo', set: '' RAX: dffffc0000000000 RBX: ffff8881b7d160e8 RCX: ffffffff833e420e kobject: 'queues' (00000000b8aaa917): kobject_uevent_env RDX: 0000000000000000 RSI: ffffffff833e3cc9 RDI: ffff8881b7d160f0 RBP: ffff88818278f298 R08: ffff8881d317e040 R09: fffff52006671800 kobject: 'queues' (00000000b8aaa917): kobject_uevent_env: filter function caused the event to drop! R10: fffff52006671800 R11: ffffc9003338c003 R12: 0000000000000000 kobject: 'rx-0' (00000000b778be09): kobject_add_internal: parent: 'queues', set: 'queues' R13: 0000000000000000 R14: ffff88818278f680 R15: dffffc0000000000 FS: 000000000199b940(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'rx-0' (00000000b778be09): kobject_uevent_env CR2: 000000000045762f CR3: 00000001c2caa000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'rx-0' (00000000b778be09): fill_kobj_path: path = '/devices/virtual/net/lo/queues/rx-0' DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 kobject: 'tx-0' (00000000bf4dab04): kobject_add_internal: parent: 'queues', set: 'queues'