netlink: 12 bytes leftover after parsing attributes in process `syz-executor4'.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 464 at ./arch/x86/include/asm/fpu/internal.h:535 __fpregs_activate arch/x86/include/asm/fpu/internal.h:535 [inline]()
WARNING: CPU: 0 PID: 464 at ./arch/x86/include/asm/fpu/internal.h:535 fpregs_activate arch/x86/include/asm/fpu/internal.h:566 [inline]()
WARNING: CPU: 0 PID: 464 at ./arch/x86/include/asm/fpu/internal.h:535 fpu__restore+0x26b/0x2f0 arch/x86/kernel/fpu/core.c:370()
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 464 Comm: syz-executor2 Not tainted 4.4.132-g4f75c34 #42
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 133b5a70d6f953f0 ffff8800b2e2fa98 ffffffff81e0df8d
 ffffffff83a43ec0 ffff8801cb936000 ffffffff83a0ef20 0000000000000009
 0000000000000217 ffff8800b2e2fb58 ffffffff81409de4 0000000041b58ab3
Call Trace:
 [<ffffffff81e0df8d>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81e0df8d>] dump_stack+0xc1/0x124 lib/dump_stack.c:51
 [<ffffffff81409de4>] panic+0x19e/0x38d kernel/panic.c:112
 [<ffffffff8140a008>] warn_slowpath_common.cold.6+0x20/0x20 kernel/panic.c:455
 [<ffffffff81130049>] warn_slowpath_null+0x29/0x30 kernel/panic.c:492
 [<ffffffff8102823b>] __fpregs_activate arch/x86/include/asm/fpu/internal.h:535 [inline]
 [<ffffffff8102823b>] fpregs_activate arch/x86/include/asm/fpu/internal.h:566 [inline]
 [<ffffffff8102823b>] fpu__restore+0x26b/0x2f0 arch/x86/kernel/fpu/core.c:370
 [<ffffffff8102b9ca>] __fpu__restore_sig+0x3ca/0xab0 arch/x86/kernel/fpu/signal.c:324
 [<ffffffff8102c568>] fpu__restore_sig+0xd8/0x100 arch/x86/kernel/fpu/signal.c:362
 [<ffffffff81115ded>] ia32_restore_sigcontext+0x43d/0x500 arch/x86/ia32/ia32_signal.c:108
 [<ffffffff81116797>] sys32_rt_sigreturn+0x1b7/0x270 arch/x86/ia32/ia32_signal.c:156
 [<ffffffff81006d96>] do_syscall_32_irqs_on arch/x86/entry/common.c:392 [inline]
 [<ffffffff81006d96>] do_fast_syscall_32+0x326/0x8b0 arch/x86/entry/common.c:459
 [<ffffffff838c1b6a>] sysenter_flags_fixed+0xd/0x17
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..