syz-executor7[5725] is installing a program with bpf_probe_write_user helper that may corrupt user memory! WARNING: CPU: 0 PID: 5748 at mm/util.c:403 kvmalloc_node+0xc3/0xd0 mm/util.c:403 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 5748 Comm: syz-executor3 Not tainted 4.16.0-rc1+ #13 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 panic+0x1e4/0x41c kernel/panic.c:183 __warn+0x1dc/0x200 kernel/panic.c:547 report_bug+0x211/0x2d0 lib/bug.c:184 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:178 fixup_bug arch/x86/kernel/traps.c:247 [inline] do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:988 RIP: 0010:kvmalloc_node+0xc3/0xd0 mm/util.c:403 RSP: 0018:ffff8801a29176e8 EFLAGS: 00010216 RAX: 0000000000010000 RBX: 0000000001088220 RCX: ffffffff81970ca3 RDX: 0000000000000325 RSI: ffffc900033c2000 RDI: 0000000000000038 RBP: ffff8801a2917708 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000038 R13: 0000000000000000 R14: 00000000ffffffff R15: ffff8801d8b53400 kvmalloc include/linux/mm.h:541 [inline] kvmalloc_array include/linux/mm.h:557 [inline] __ptr_ring_init_queue_alloc include/linux/ptr_ring.h:474 [inline] ptr_ring_init include/linux/ptr_ring.h:492 [inline] __cpu_map_entry_alloc kernel/bpf/cpumap.c:359 [inline] cpu_map_update_elem+0x3c3/0x8e0 kernel/bpf/cpumap.c:490 map_update_elem kernel/bpf/syscall.c:698 [inline] SYSC_bpf kernel/bpf/syscall.c:1872 [inline] SyS_bpf+0x215f/0x4860 kernel/bpf/syscall.c:1843 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b RIP: 0033:0x453a59 RSP: 002b:00007f2182c4bc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f2182c4c6d4 RCX: 0000000000453a59 RDX: 0000000000000020 RSI: 0000000020879000 RDI: 0000000000000002 RBP: 000000000071bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000040 R14: 00000000006f06a0 R15: 0000000000000000 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..