random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) audit: type=1400 audit(1536372551.684:7): avc: denied { map } for pid=1782 comm="syz-executor020" path="/root/syz-executor020758680" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1782 at mm/page_alloc.c:3889 __alloc_pages_slowpath mm/page_alloc.c:3889 [inline] WARNING: CPU: 0 PID: 1782 at mm/page_alloc.c:3889 __alloc_pages_nodemask+0x1662/0x2300 mm/page_alloc.c:4222 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 1782 Comm: syz-executor020 Not tainted 4.14.68+ #4 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 panic+0x1bf/0x3a4 kernel/panic.c:181 __warn.cold.7+0x148/0x185 kernel/panic.c:542 report_bug+0x1f7/0x26c lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:177 [inline] do_error_trap+0x1ba/0x2c0 arch/x86/kernel/traps.c:295 invalid_op+0x18/0x40 arch/x86/entry/entry_64.S:944 RIP: 0010:__alloc_pages_slowpath mm/page_alloc.c:3889 [inline] RIP: 0010:__alloc_pages_nodemask+0x1662/0x2300 mm/page_alloc.c:4222 RSP: 0018:ffff8801d218f1a0 EFLAGS: 00010246 RAX: 00000000ffff9a87 RBX: 0000000000000000 RCX: ffffffffa421e890 RDX: 1ffffffff47c1200 RSI: 0000000000000001 RDI: 00000000014040c0 RBP: ffff8801d0c25e00 R08: 0000000000000001 R09: 00000000000a7caa R10: ffff8801d0c26680 R11: 0000000000000000 R12: 00000000014040c0 R13: 0000000000000000 R14: 00000000014040c0 R15: ffff8801d218f3b0 __alloc_pages include/linux/gfp.h:461 [inline] __alloc_pages_node include/linux/gfp.h:474 [inline] alloc_pages_node include/linux/gfp.h:488 [inline] kmalloc_order+0x1f/0x60 mm/slab_common.c:1126 kmalloc_order_trace+0x18/0x160 mm/slab_common.c:1137 kmalloc include/linux/slab.h:493 [inline] str_read+0x32/0x150 security/selinux/ss/policydb.c:1102 common_read+0x265/0x370 security/selinux/ss/policydb.c:1175 policydb_read+0xcdd/0x2380 security/selinux/ss/policydb.c:2406 security_load_policy+0x25a/0x980 security/selinux/ss/services.c:2106 sel_write_load+0x1ff/0x1000 security/selinux/selinuxfs.c:503 __vfs_write+0xf4/0x5c0 fs/read_write.c:482 vfs_write+0x17f/0x4d0 fs/read_write.c:546 SYSC_write fs/read_write.c:593 [inline] SyS_write+0xc2/0x1a0 fs/read_write.c:585 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x440049 RSP: 002b:00007ffd7070cba8 EFLAGS: 00000213 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440049 RDX: 0000000000000163 RSI: 0000000020000380 RDI: 0000000000000003 RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 R10: 0000000000000000 R11: 0000000000000213 R12: 00000000004018d0 R13: 0000000000401960 R14: 0000000000000000 R15: 0000000000000000 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: 0x20a00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) Rebooting in 86400 seconds..