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: 13863 Comm: syz-executor.5 Not tainted 5.0.0+ #117
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:x25_write_internal+0x1e8/0xdf0 net/x25/x25_subr.c:173
Code: 00 40 88 b5 e0 fe ff ff 0f 85 01 0b 00 00 48 8b 8b 80 04 00 00 48 ba 00 00 00 00 00 fc ff df 48 8d 79 1c 48 89 fe 48 c1 ee 03 <0f> b6 34 16 48 89 fa 83 e2 07 83 c2 03 40 38 f2 7c 09 40 84 f6 0f
RSP: 0018:ffff88806028fa08 EFLAGS: 00010207
RAX: ffff88806f84f552 RBX: ffff888062f20a80 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000003 RDI: 000000000000001c
RBP: ffff88806028fb40 R08: ffff88809f69e480 R09: ffffed100df09ec5
R10: ffffed100df09ec4 R11: ffff88806f84f623 R12: ffff888091af1180
R13: 1ffff1100c051f47 R14: 0000000000000013 R15: 0000000000000013
FS:  00007fd8bc90d700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd8bc8cadb8 CR3: 00000000960c3000 CR4: 00000000001406f0
Call Trace:
 x25_release+0xd0/0x340 net/x25/af_x25.c:658
 __sock_release+0xd3/0x2b0 net/socket.c:579
 sock_close+0x1b/0x30 net/socket.c:1162
 __fput+0x2df/0x8d0 fs/file_table.c:278
 ____fput+0x16/0x20 fs/file_table.c:309
 task_work_run+0x14a/0x1c0 kernel/task_work.c:113
 get_signal+0x1961/0x1d50 kernel/signal.c:2388
 do_signal+0x87/0x1940 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457f29
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
IPVS: ftp: loaded support on port[0] = 21
RSP: 002b:00007fd8bc90cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: fffffffffffffe00 RBX: 0000000000000003 RCX: 0000000000457f29
RDX: 0000000000000012 RSI: 0000000020000280 RDI: 0000000000000004
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd8bc90d6d4
R13: 00000000004be462 R14: 00000000004cec98 R15: 00000000ffffffff
Modules linked in:
---[ end trace 9a996d5f4914ec8e ]---
kobject: 'lo' (0000000077c7bcaa): kobject_add_internal: parent: 'net', set: 'devices'
RIP: 0010:x25_write_internal+0x1e8/0xdf0 net/x25/x25_subr.c:173
Code: 00 40 88 b5 e0 fe ff ff 0f 85 01 0b 00 00 48 8b 8b 80 04 00 00 48 ba 00 00 00 00 00 fc ff df 48 8d 79 1c 48 89 fe 48 c1 ee 03 <0f> b6 34 16 48 89 fa 83 e2 07 83 c2 03 40 38 f2 7c 09 40 84 f6 0f
kobject: 'lo' (0000000077c7bcaa): kobject_uevent_env
RSP: 0018:ffff88806028fa08 EFLAGS: 00010207
kobject: 'loop0' (000000008c6afca4): kobject_uevent_env
RAX: ffff88806f84f552 RBX: ffff888062f20a80 RCX: 0000000000000000
kobject: 'loop0' (000000008c6afca4): fill_kobj_path: path = '/devices/virtual/block/loop0'
RDX: dffffc0000000000 RSI: 0000000000000003 RDI: 000000000000001c
RBP: ffff88806028fb40 R08: ffff88809f69e480 R09: ffffed100df09ec5
kobject: 'lo' (0000000077c7bcaa): fill_kobj_path: path = '/devices/virtual/net/lo'
R10: ffffed100df09ec4 R11: ffff88806f84f623 R12: ffff888091af1180
R13: 1ffff1100c051f47 R14: 0000000000000013 R15: 0000000000000013
kobject: 'queues' (000000001bf89b8e): kobject_add_internal: parent: 'lo', set: '<NULL>'
FS:  00007fd8bc90d700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa8dbe5e000 CR3: 00000000960c3000 CR4: 00000000001406f0
kobject: 'queues' (000000001bf89b8e): kobject_uevent_env