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: 25056 Comm: syz-executor.0 Not tainted 5.2.0-rc6+ #11 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline] RIP: 0010:get_task_pid+0xe1/0x210 kernel/pid.c:372 Code: 89 ff e8 62 27 5f 00 49 8b 07 44 89 f1 4c 8d bc c8 90 01 00 00 eb 0c e8 0d fe 25 00 49 81 c7 38 05 00 00 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 31 27 5f 00 4d 8b 37 e8 f9 47 12 00 RSP: 0018:ffff88805a35fd78 EFLAGS: 00010203 RAX: 00000000000000a7 RBX: dffffc0000000000 RCX: 0000000000040000 RDX: ffffc90005de9000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffff88805a35fd90 R08: ffffffff814fb358 R09: ffffed1015d46bf8 R10: ffffed1015d46bf8 R11: 1ffff11015d46bf7 R12: 0000000000001100 R13: 1ffff1100b46bfbc R14: 0000000000000000 R15: 000000000000053e FS: 00007fac5fbe3700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000625208 CR3: 0000000056aab000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: _do_fork+0x1b9/0x5f0 kernel/fork.c:2364 __do_sys_clone kernel/fork.c:2458 [inline] __se_sys_clone kernel/fork.c:2452 [inline] __x64_sys_clone+0xc1/0xd0 kernel/fork.c:2452 do_syscall_64+0xfe/0x140 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459519 Code: fd b7 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fac5fbe2c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fac5fbe2c90 RCX: 0000000000459519 RDX: 9999999999999999 RSI: 0000000000000000 RDI: 0000000000001100 RBP: 000000000075bf20 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fac5fbe36d4 R13: 00000000004bf97d R14: 00000000004d1358 R15: 0000000000000005 Modules linked in: ---[ end trace 4f512c8a625bfbf8 ]--- RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline] RIP: 0010:get_task_pid+0xe1/0x210 kernel/pid.c:372 Code: 89 ff e8 62 27 5f 00 49 8b 07 44 89 f1 4c 8d bc c8 90 01 00 00 eb 0c e8 0d fe 25 00 49 81 c7 38 05 00 00 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 31 27 5f 00 4d 8b 37 e8 f9 47 12 00 RSP: 0018:ffff88805a35fd78 EFLAGS: 00010203 RAX: 00000000000000a7 RBX: dffffc0000000000 RCX: 0000000000040000 RDX: ffffc90005de9000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffff88805a35fd90 R08: ffffffff814fb358 R09: ffffed1015d46bf8 R10: ffffed1015d46bf8 R11: 1ffff11015d46bf7 R12: 0000000000001100 R13: 1ffff1100b46bfbc R14: 0000000000000000 R15: 000000000000053e FS: 00007fac5fbe3700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000625208 CR3: 0000000056aab000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400