SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=3516 comm=syz-executor4
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=3526 comm=syz-executor4
==================================================================
BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x9a/0xc0 lib/usercopy.c:27
Read of size 337 at addr ffff8801985b7ffd by task syz-executor0/3532

CPU: 1 PID: 3532 Comm: syz-executor0 Not tainted 4.14.74+ #17
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xb9/0x11b lib/dump_stack.c:53
 print_address_description+0x60/0x22b mm/kasan/report.c:252
 kasan_report_error mm/kasan/report.c:351 [inline]
 kasan_report.cold.6+0x11b/0x2dd mm/kasan/report.c:409
 _copy_to_user+0x9a/0xc0 lib/usercopy.c:27
 copy_to_user include/linux/uaccess.h:155 [inline]
 bpf_test_finish.isra.0+0xc8/0x190 net/bpf/test_run.c:59
 bpf_prog_test_run_skb+0x4d0/0x8c0 net/bpf/test_run.c:144
 bpf_prog_test_run kernel/bpf/syscall.c:1330 [inline]
 SYSC_bpf kernel/bpf/syscall.c:1602 [inline]
 SyS_bpf+0x79d/0x3640 kernel/bpf/syscall.c:1547
 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x457579
RSP: 002b:00007fbc33ff5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579
RDX: 0000000000000028 RSI: 0000000020000180 RDI: 000000000000000a
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbc33ff66d4
R13: 00000000004bd8a6 R14: 00000000004cc208 R15: 00000000ffffffff

Allocated by task 1639:
 save_stack mm/kasan/kasan.c:447 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc.part.1+0x4f/0xd0 mm/kasan/kasan.c:551
 kmem_cache_alloc_trace+0x138/0x300 mm/slub.c:2750
 kmalloc include/linux/slab.h:488 [inline]
 audit_log_d_path+0x9f/0x170 kernel/audit.c:1973
 dump_common_audit_data security/lsm_audit.c:251 [inline]
 common_lsm_audit+0x821/0x1d00 security/lsm_audit.c:459
 slow_avc_audit+0x14a/0x1d0 security/selinux/avc.c:771
 avc_audit security/selinux/include/avc.h:141 [inline]
 avc_has_perm+0x2f2/0x390 security/selinux/avc.c:1146
 inode_has_perm.isra.21+0xff/0x160 security/selinux/hooks.c:1771
 selinux_mmap_file+0x130/0x220 security/selinux/hooks.c:3621
 security_mmap_file+0x93/0x170 security/security.c:926
 vm_mmap_pgoff+0xdf/0x1d0 mm/util.c:329
 SYSC_mmap_pgoff mm/mmap.c:1559 [inline]
 SyS_mmap_pgoff+0xf8/0x1a0 mm/mmap.c:1517
 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7

Freed by task 1639:
 save_stack mm/kasan/kasan.c:447 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0xac/0x190 mm/kasan/kasan.c:524
 slab_free_hook mm/slub.c:1389 [inline]
 slab_free_freelist_hook mm/slub.c:1410 [inline]
 slab_free mm/slub.c:2966 [inline]
 kfree+0xf5/0x310 mm/slub.c:3897
 audit_log_d_path+0xf2/0x170 kernel/audit.c:1984
 dump_common_audit_data security/lsm_audit.c:251 [inline]
 common_lsm_audit+0x821/0x1d00 security/lsm_audit.c:459
 slow_avc_audit+0x14a/0x1d0 security/selinux/avc.c:771
 avc_audit security/selinux/include/avc.h:141 [inline]
 avc_has_perm+0x2f2/0x390 security/selinux/avc.c:1146
 inode_has_perm.isra.21+0xff/0x160 security/selinux/hooks.c:1771
 selinux_mmap_file+0x130/0x220 security/selinux/hooks.c:3621
 security_mmap_file+0x93/0x170 security/security.c:926
 vm_mmap_pgoff+0xdf/0x1d0 mm/util.c:329
 SYSC_mmap_pgoff mm/mmap.c:1559 [inline]
 SyS_mmap_pgoff+0xf8/0x1a0 mm/mmap.c:1517
 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7

The buggy address belongs to the object at ffff8801985b4200
 which belongs to the cache kmalloc-8192 of size 8192
The buggy address is located 7677 bytes to the right of
 8192-byte region [ffff8801985b4200, ffff8801985b6200)
The buggy address belongs to the page:
page:ffffea0006616c00 count:1 mapcount:0 mapping:          (null) index:0x0 compound_mapcount: 0
flags: 0x4000000000008100(slab|head)
raw: 4000000000008100 0000000000000000 0000000000000000 0000000100030003
raw: dead000000000100 dead000000000200 ffff8801da802400 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801985b7e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8801985b7f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8801985b7f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                                ^
 ffff8801985b8000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8801985b8080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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