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
Modules linked in:
CPU: 0 PID: 8377 Comm: syz-executor.5 Not tainted 4.9.141+ #1
task: ffff88018b2097c0 task.stack: ffff8801c5810000
RIP: 0010:[<ffffffff81a17f12>]  [<ffffffff81a17f12>] ebitmap_destroy+0x32/0x100 security/selinux/ss/ebitmap.c:331
RSP: 0018:ffff8801c58173e8  EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8801d7a75700 RCX: ffffc9000173e000
RDX: 0000000000000001 RSI: ffffffff81a17f01 RDI: 0000000000000008
RBP: ffff8801c5817408 R08: ffff88018b20a0e0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88013a210000
R13: 1ffff10038b02e89 R14: 0000000000000008 R15: ffff8801c58174a8
FS:  00007f919f931700(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000d6b978 CR3: 00000001c6523000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801d7a75700 ffff88013a210000 1ffff10038b02e89 00000000ffffffea
 ffff8801c5817428 ffffffff81a20997 ffff8801c5817908 ffff8801d7a75700
 ffff8801c58174d0 ffffffff81a2124e ffff8801c76f9b10 0000000000000008
Call Trace:
 [<ffffffff81a20997>] sens_destroy+0x47/0x90 security/selinux/ss/policydb.c:729
 [<ffffffff81a2124e>] sens_read+0x1de/0x360 security/selinux/ss/policydb.c:1630
 [<ffffffff81a2b1ea>] policydb_read+0xdba/0x2390 security/selinux/ss/policydb.c:2367
 [<ffffffff81a3ba84>] security_load_policy+0x264/0x9b0 security/selinux/ss/services.c:2067
 [<ffffffff81a1233b>] sel_write_load+0x19b/0xfa0 security/selinux/selinuxfs.c:522
 [<ffffffff81508085>] __vfs_write+0x115/0x580 fs/read_write.c:507
 [<ffffffff8150ab97>] vfs_write+0x187/0x520 fs/read_write.c:557
 [<ffffffff8150e9c9>] SYSC_write fs/read_write.c:604 [inline]
 [<ffffffff8150e9c9>] SyS_write+0xd9/0x1c0 fs/read_write.c:596
 [<ffffffff810056ef>] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285
 [<ffffffff82817893>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 89 fe 41 55 41 54 53 e8 6d 3b 90 ff 4d 85 f6 0f 84 a6 00 00 00 e8 5f 3b 90 ff 4c 89 f2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 a5 00 00 00 49 8b 1e 48 85 db 74 32 49 bd 00 
RIP  [<ffffffff81a17f12>] ebitmap_destroy+0x32/0x100 security/selinux/ss/ebitmap.c:331
 RSP <ffff8801c58173e8>
---[ end trace 171aa81dcb25f9ec ]---