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: 1 PID: 6362 Comm: syz-executor.0 Not tainted 4.9.141+ #23
task: ffff8801cc4cc740 task.stack: ffff8801c9958000
RIP: 0010:[<ffffffff81a17f12>]  [<ffffffff81a17f12>] ebitmap_destroy+0x32/0x100 security/selinux/ss/ebitmap.c:331
RSP: 0018:ffff8801c995f3d8  EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8801d304d6a0 RCX: ffffc9000093f000
RDX: 0000000000000001 RSI: ffffffff81a17f01 RDI: 0000000000000008
RBP: ffff8801c995f3f8 R08: ffff8801cc4ccff0 R09: ffff8801c995f178
R10: ffffed003932be22 R11: ffff8801c995f117 R12: 0000000000000000
R13: 1ffff1003932be87 R14: 0000000000000008 R15: ffff8801c995f498
FS:  0000000000000000(0000) GS:ffff8801db700000(0063) knlGS:00000000f55dbb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00007f3a110c1518 CR3: 00000001c967f000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801d304d6a0 0000000000000000 1ffff1003932be87 00000000ffffffea
 ffff8801c995f418 ffffffff81a20997 ffff8801c995f8f8 ffff8801d304d6a0
 ffff8801c995f4c0 ffffffff81a2124e ffff8801d6662810 0000000000000000
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
 [<ffffffff81006311>] do_syscall_32_irqs_on arch/x86/entry/common.c:328 [inline]
 [<ffffffff81006311>] do_fast_syscall_32+0x2f1/0xa10 arch/x86/entry/common.c:390
 [<ffffffff82818de0>] entry_SYSENTER_compat+0x90/0xa2 arch/x86/entry/entry_64_compat.S:137
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 <ffff8801c995f3d8>
---[ end trace ebd1fad4b0e0fc89 ]---