diff --git a/libc/kernel/uapi/asm-generic/hugetlb_encode.h b/libc/kernel/uapi/asm-generic/hugetlb_encode.h
index 01a10ce..73d8180 100644
--- a/libc/kernel/uapi/asm-generic/hugetlb_encode.h
+++ b/libc/kernel/uapi/asm-generic/hugetlb_encode.h
@@ -20,6 +20,7 @@
 #define _ASM_GENERIC_HUGETLB_ENCODE_H_
 #define HUGETLB_FLAG_ENCODE_SHIFT 26
 #define HUGETLB_FLAG_ENCODE_MASK 0x3f
+#define HUGETLB_FLAG_ENCODE_16KB (14 << HUGETLB_FLAG_ENCODE_SHIFT)
 #define HUGETLB_FLAG_ENCODE_64KB (16 << HUGETLB_FLAG_ENCODE_SHIFT)
 #define HUGETLB_FLAG_ENCODE_512KB (19 << HUGETLB_FLAG_ENCODE_SHIFT)
 #define HUGETLB_FLAG_ENCODE_1MB (20 << HUGETLB_FLAG_ENCODE_SHIFT)
diff --git a/libc/kernel/uapi/asm-generic/siginfo.h b/libc/kernel/uapi/asm-generic/siginfo.h
index 829ffad..16a85c3 100644
--- a/libc/kernel/uapi/asm-generic/siginfo.h
+++ b/libc/kernel/uapi/asm-generic/siginfo.h
@@ -179,7 +179,9 @@
 #define SEGV_ACCADI 5
 #define SEGV_ADIDERR 6
 #define SEGV_ADIPERR 7
-#define NSIGSEGV 7
+#define SEGV_MTEAERR 8
+#define SEGV_MTESERR 9
+#define NSIGSEGV 9
 #define BUS_ADRALN 1
 #define BUS_ADRERR 2
 #define BUS_OBJERR 3
diff --git a/libc/kernel/uapi/asm-generic/unistd.h b/libc/kernel/uapi/asm-generic/unistd.h
index 07fe6e7..412e751 100644
--- a/libc/kernel/uapi/asm-generic/unistd.h
+++ b/libc/kernel/uapi/asm-generic/unistd.h
@@ -400,8 +400,9 @@
 #define __NR_openat2 437
 #define __NR_pidfd_getfd 438
 #define __NR_faccessat2 439
+#define __NR_process_madvise 440
 #undef __NR_syscalls
-#define __NR_syscalls 440
+#define __NR_syscalls 441
 #if __BITS_PER_LONG == 64 && !defined(__SYSCALL_COMPAT)
 #define __NR_fcntl __NR3264_fcntl
 #define __NR_statfs __NR3264_statfs