netlink: 4 bytes leftover after parsing attributes in process `syz-executor7'. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 21605 at lib/vsprintf.c:1938 set_precision+0x144/0x170 lib/vsprintf.c:1938 precision 1046322 too large[ 372.324066] Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 21605 Comm: syz-executor0 Not tainted 4.9.113-g8956c50 #19 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801b68776d0 ffffffff81eb32a9 ffffffff83c48980 00000000ffffffff 0000000000000000 0000000000000000 0000000000000792 ffff8801b6877790 ffffffff81421a55 0000000041b58ab3 ffffffff843bb788 ffffffff81421896 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] panic+0x1bf/0x3bc kernel/panic.c:179 [] __warn.cold.9+0xc1/0x17f kernel/panic.c:542 [] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:565 [] set_precision+0x144/0x170 lib/vsprintf.c:1938 [] vsnprintf+0x31e/0x1840 lib/vsprintf.c:2014 [] vscnprintf+0x2d/0x60 lib/vsprintf.c:2144 [] vprintk_emit+0xf4/0x790 kernel/printk/printk.c:1847 [] vprintk+0x28/0x30 kernel/printk/printk.c:1913 [] vprintk_default+0x1d/0x30 kernel/printk/printk.c:1914 [] vprintk_func kernel/printk/internal.h:36 [inline] [] printk+0xaf/0xd7 kernel/printk/printk.c:1975 [] dns_resolver_preparse.cold.3+0x71/0x240 net/dns_resolver/dns_key.c:131 [] key_create_or_update+0x35b/0xac0 security/keys/key.c:855 [] SYSC_add_key security/keys/keyctl.c:125 [inline] [] SyS_add_key+0x1b4/0x390 security/keys/keyctl.c:60 [] do_syscall_32_irqs_on arch/x86/entry/common.c:325 [inline] [] do_fast_syscall_32+0x2f7/0x870 arch/x86/entry/common.c:387 [] entry_SYSENTER_compat+0x90/0xa2 arch/x86/entry/entry_64_compat.S:137 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..