------------[ cut here ]------------ WARNING: CPU: 1 PID: 4713 at lib/vsprintf.c:1897 format_decode+0x7bb/0x9e0 lib/vsprintf.c:1897 Please remove unsupported % in format string Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 4713 Comm: syz-executor0 Not tainted 4.9.135+ #110 ffff8801ce997358 ffffffff81b36bf9 ffffffff82a38ba0 00000000ffffffff 0000000000000000 0000000000000001 0000000000000769 ffff8801ce997418 ffffffff813f6aa5 0000000041b58ab3 ffffffff82e29bcb ffffffff813f68e6 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] panic+0x1bf/0x39f kernel/panic.c:179 [] __warn.cold.9+0xc1/0x17f kernel/panic.c:542 [] warn_slowpath_fmt+0xc2/0x100 kernel/panic.c:565 [] format_decode+0x7bb/0x9e0 lib/vsprintf.c:1897 [] vsnprintf+0x163/0x1840 lib/vsprintf.c:1993 [] seq_vprintf+0xe3/0x1a0 fs/seq_file.c:403 [] seq_printf+0xab/0xe0 fs/seq_file.c:418 [] get_tcp6_sock net/ipv6/tcp_ipv6.c:1787 [inline] [] tcp6_seq_show+0xdf7/0x1ad0 net/ipv6/tcp_ipv6.c:1861 [] seq_read+0xa75/0x12d0 fs/seq_file.c:275 [] proc_reg_read+0xfd/0x180 fs/proc/inode.c:203 [] do_loop_readv_writev.part.1+0xd5/0x280 fs/read_write.c:718 [] do_loop_readv_writev fs/read_write.c:707 [inline] [] do_readv_writev+0x56e/0x7b0 fs/read_write.c:873 [] vfs_readv+0x84/0xc0 fs/read_write.c:897 [] do_preadv+0x197/0x240 fs/read_write.c:974 [] SYSC_preadv fs/read_write.c:1024 [inline] [] SyS_preadv+0x30/0x40 fs/read_write.c:1019 [] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285 [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Kernel Offset: disabled Rebooting in 86400 seconds..