kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 3091 Comm: syz-executor0 Not tainted 4.15.0-rc1+ #205 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: 00000000ccfdb5ae task.stack: 00000000c6879de8 RIP: 0010:sidtab_search_core+0x6a/0x320 security/selinux/ss/sidtab.c:88 RSP: 0018:ffff8801d458f488 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000008 RCX: ffffffff82207ffd RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff874c5180 RBP: ffff8801d458f4b8 R08: 0000000000000001 R09: 1ffffffff0d6ab32 R10: 0000000000000000 R11: ffffffff87489d60 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 FS: 00007f116b9aa700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004d5638 CR3: 00000001cc45a000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sidtab_search+0x1f/0x30 security/selinux/ss/sidtab.c:111 security_bounded_transition+0xa8/0x4d0 security/selinux/ss/services.c:873 selinux_setprocattr+0x8d0/0xb50 security/selinux/hooks.c:6042 security_setprocattr+0x85/0xc0 security/security.c:1264 proc_pid_attr_write+0x1e6/0x280 fs/proc/base.c:2545 __vfs_write+0xef/0x970 fs/read_write.c:480 __kernel_write+0xfe/0x350 fs/read_write.c:501 write_pipe_buf+0x175/0x220 fs/splice.c:797 splice_from_pipe_feed fs/splice.c:502 [inline] __splice_from_pipe+0x328/0x730 fs/splice.c:626 splice_from_pipe+0x1e9/0x330 fs/splice.c:661 default_file_splice_write+0x40/0x90 fs/splice.c:809 do_splice_from fs/splice.c:851 [inline] direct_splice_actor+0x125/0x180 fs/splice.c:1018 splice_direct_to_actor+0x2c1/0x820 fs/splice.c:973 do_splice_direct+0x2a7/0x3d0 fs/splice.c:1061 do_sendfile+0x5d5/0xe90 fs/read_write.c:1413 SYSC_sendfile64 fs/read_write.c:1468 [inline] SyS_sendfile64+0xbd/0x160 fs/read_write.c:1460 entry_SYSCALL_64_fastpath+0x1f/0x96 RIP: 0033:0x4529d9 RSP: 002b:00007f116b9a9c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f116b9a9940 RCX: 00000000004529d9 RDX: 0000000020014000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f116b9a9930 R08: 0000000000000000 R09: 0000000000000000 R10: 1000000800000008 R11: 0000000000000212 R12: 00000000004b7369 R13: 00007f116b9a9ab8 R14: 00000000004b7379 R15: 0000000000000000 Code: ea 03 41 83 e4 7f 80 3c 02 00 0f 85 7d 02 00 00 4c 8b 33 4d 63 e4 48 b8 00 00 00 00 00 fc ff df 4b 8d 1c e6 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 41 02 00 00 48 8b 1b 48 85 db 0f 84 8b 00 00 RIP: sidtab_search_core+0x6a/0x320 security/selinux/ss/sidtab.c:88 RSP: ffff8801d458f488 ---[ end trace 23d4f2c362fad12a ]---