diff --git a/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h b/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h
index bedab1a..74a8095 100644
--- a/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h
@@ -180,6 +180,7 @@
 #define __NR_preadv2 286
 #define __NR_prlimit64 261
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 270
 #define __NR_process_vm_writev 271
 #define __NR_pselect6 72
diff --git a/sysdeps/unix/sysv/linux/alpha/arch-syscall.h b/sysdeps/unix/sysv/linux/alpha/arch-syscall.h
index 91354ed..6fc0a23 100644
--- a/sysdeps/unix/sysv/linux/alpha/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/alpha/arch-syscall.h
@@ -328,6 +328,7 @@
 #define __NR_preadv2 520
 #define __NR_prlimit64 496
 #define __NR_process_madvise 550
+#define __NR_process_mrelease 558
 #define __NR_process_vm_readv 504
 #define __NR_process_vm_writev 505
 #define __NR_pselect6 463
diff --git a/sysdeps/unix/sysv/linux/arc/arch-syscall.h b/sysdeps/unix/sysv/linux/arc/arch-syscall.h
index ff5c7eb..0c66762 100644
--- a/sysdeps/unix/sysv/linux/arc/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/arc/arch-syscall.h
@@ -182,6 +182,7 @@
 #define __NR_preadv2 286
 #define __NR_prlimit64 261
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 270
 #define __NR_process_vm_writev 271
 #define __NR_pselect6_time64 413
diff --git a/sysdeps/unix/sysv/linux/arm/arch-syscall.h b/sysdeps/unix/sysv/linux/arm/arch-syscall.h
index 5772333..c41a864 100644
--- a/sysdeps/unix/sysv/linux/arm/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/arm/arch-syscall.h
@@ -235,6 +235,7 @@
 #define __NR_preadv2 392
 #define __NR_prlimit64 369
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 376
 #define __NR_process_vm_writev 377
 #define __NR_pselect6 335
diff --git a/sysdeps/unix/sysv/linux/csky/arch-syscall.h b/sysdeps/unix/sysv/linux/csky/arch-syscall.h
index 4af6d62..863ffa3 100644
--- a/sysdeps/unix/sysv/linux/csky/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/csky/arch-syscall.h
@@ -190,6 +190,7 @@
 #define __NR_preadv2 286
 #define __NR_prlimit64 261
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 270
 #define __NR_process_vm_writev 271
 #define __NR_pselect6 72
diff --git a/sysdeps/unix/sysv/linux/filter-nr-syscalls.awk b/sysdeps/unix/sysv/linux/filter-nr-syscalls.awk
index dddfd51..85b0179 100644
--- a/sysdeps/unix/sysv/linux/filter-nr-syscalls.awk
+++ b/sysdeps/unix/sysv/linux/filter-nr-syscalls.awk
@@ -22,7 +22,7 @@
 }
 
 # Skip pseudo-system calls which describe ranges.
-/^#define __NR_(syscalls|arch_specific_syscall|(OABI_)?SYSCALL_BASE) / {
+/^#define __NR_(syscalls|arch_specific_syscall|(OABI_)?SYSCALL_BASE|SYSCALL_MASK) / {
     next;
 }
 /^#define __NR_(|64_|[NO]32_)Linux(_syscalls)? / {
diff --git a/sysdeps/unix/sysv/linux/glibcsyscalls.py b/sysdeps/unix/sysv/linux/glibcsyscalls.py
index 621a202..fe7896e 100644
--- a/sysdeps/unix/sysv/linux/glibcsyscalls.py
+++ b/sysdeps/unix/sysv/linux/glibcsyscalls.py
@@ -41,7 +41,7 @@ RE_PSEUDO_SYSCALL = re.compile(r"""__NR_(
     (unused|reserved)[0-9]+
 
     # Pseudo-system call which describes a range.
-    |(syscalls|arch_specific_syscall|(OABI_)?SYSCALL_BASE)
+    |(syscalls|arch_specific_syscall|(OABI_)?SYSCALL_BASE|SYSCALL_MASK)
     |(|64_|[NO]32_)Linux(_syscalls)?
    )""", re.X)
 
diff --git a/sysdeps/unix/sysv/linux/hppa/arch-syscall.h b/sysdeps/unix/sysv/linux/hppa/arch-syscall.h
index b07fc85..6cf27cd 100644
--- a/sysdeps/unix/sysv/linux/hppa/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/hppa/arch-syscall.h
@@ -222,6 +222,7 @@
 #define __NR_preadv2 347
 #define __NR_prlimit64 321
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 330
 #define __NR_process_vm_writev 331
 #define __NR_pselect6 273
diff --git a/sysdeps/unix/sysv/linux/i386/arch-syscall.h b/sysdeps/unix/sysv/linux/i386/arch-syscall.h
index 6e42646..2512508 100644
--- a/sysdeps/unix/sysv/linux/i386/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/i386/arch-syscall.h
@@ -254,6 +254,7 @@
 #define __NR_preadv2 378
 #define __NR_prlimit64 340
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 347
 #define __NR_process_vm_writev 348
 #define __NR_prof 44
diff --git a/sysdeps/unix/sysv/linux/ia64/arch-syscall.h b/sysdeps/unix/sysv/linux/ia64/arch-syscall.h
index 1ca706d..4a0c737 100644
--- a/sysdeps/unix/sysv/linux/ia64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/ia64/arch-syscall.h
@@ -209,6 +209,7 @@
 #define __NR_preadv2 1348
 #define __NR_prlimit64 1325
 #define __NR_process_madvise 1464
+#define __NR_process_mrelease 1472
 #define __NR_process_vm_readv 1332
 #define __NR_process_vm_writev 1333
 #define __NR_pselect6 1294
diff --git a/sysdeps/unix/sysv/linux/m68k/arch-syscall.h b/sysdeps/unix/sysv/linux/m68k/arch-syscall.h
index 2f10f71..e310eb5 100644
--- a/sysdeps/unix/sysv/linux/m68k/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/m68k/arch-syscall.h
@@ -243,6 +243,7 @@
 #define __NR_preadv2 377
 #define __NR_prlimit64 339
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 345
 #define __NR_process_vm_writev 346
 #define __NR_pselect6 301
diff --git a/sysdeps/unix/sysv/linux/microblaze/arch-syscall.h b/sysdeps/unix/sysv/linux/microblaze/arch-syscall.h
index 0607a4d..b4ecad0 100644
--- a/sysdeps/unix/sysv/linux/microblaze/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/microblaze/arch-syscall.h
@@ -253,6 +253,7 @@
 #define __NR_preadv2 393
 #define __NR_prlimit64 370
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 377
 #define __NR_process_vm_writev 378
 #define __NR_prof 44
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/arch-syscall.h b/sysdeps/unix/sysv/linux/mips/mips32/arch-syscall.h
index 0055eec..7e3d138 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/mips/mips32/arch-syscall.h
@@ -238,6 +238,7 @@
 #define __NR_preadv2 4361
 #define __NR_prlimit64 4338
 #define __NR_process_madvise 4440
+#define __NR_process_mrelease 4448
 #define __NR_process_vm_readv 4345
 #define __NR_process_vm_writev 4346
 #define __NR_prof 4044
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/arch-syscall.h b/sysdeps/unix/sysv/linux/mips/mips64/n32/arch-syscall.h
index 8e8e9f9..7e9e232 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/arch-syscall.h
@@ -221,6 +221,7 @@
 #define __NR_preadv2 6325
 #define __NR_prlimit64 6302
 #define __NR_process_madvise 6440
+#define __NR_process_mrelease 6448
 #define __NR_process_vm_readv 6309
 #define __NR_process_vm_writev 6310
 #define __NR_pselect6 6264
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/arch-syscall.h b/sysdeps/unix/sysv/linux/mips/mips64/n64/arch-syscall.h
index ebd1545..f9e7ef7 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/arch-syscall.h
@@ -209,6 +209,7 @@
 #define __NR_preadv2 5321
 #define __NR_prlimit64 5297
 #define __NR_process_madvise 5440
+#define __NR_process_mrelease 5448
 #define __NR_process_vm_readv 5304
 #define __NR_process_vm_writev 5305
 #define __NR_pselect6 5260
diff --git a/sysdeps/unix/sysv/linux/nios2/arch-syscall.h b/sysdeps/unix/sysv/linux/nios2/arch-syscall.h
index 2b530b1..afd73fc 100644
--- a/sysdeps/unix/sysv/linux/nios2/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/nios2/arch-syscall.h
@@ -189,6 +189,7 @@
 #define __NR_preadv2 286
 #define __NR_prlimit64 261
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 270
 #define __NR_process_vm_writev 271
 #define __NR_pselect6 72
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/arch-syscall.h b/sysdeps/unix/sysv/linux/powerpc/powerpc32/arch-syscall.h
index a32984a..0ac2992 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/arch-syscall.h
@@ -247,6 +247,7 @@
 #define __NR_preadv2 380
 #define __NR_prlimit64 325
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 351
 #define __NR_process_vm_writev 352
 #define __NR_prof 44
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/arch-syscall.h b/sysdeps/unix/sysv/linux/powerpc/powerpc64/arch-syscall.h
index b01e464..c890bc6 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/arch-syscall.h
@@ -231,6 +231,7 @@
 #define __NR_preadv2 380
 #define __NR_prlimit64 325
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 351
 #define __NR_process_vm_writev 352
 #define __NR_prof 44
diff --git a/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h b/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h
index 24d0a2c..cd336d7 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h
@@ -16,6 +16,7 @@
 #define __NR_clock_nanosleep_time64 407
 #define __NR_clock_settime64 404
 #define __NR_clone 220
+#define __NR_clone3 435
 #define __NR_close 57
 #define __NR_close_range 436
 #define __NR_connect 203
@@ -171,6 +172,7 @@
 #define __NR_preadv2 286
 #define __NR_prlimit64 261
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 270
 #define __NR_process_vm_writev 271
 #define __NR_pselect6_time64 413
diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h b/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h
index e526c89..8edd216 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h
@@ -179,6 +179,7 @@
 #define __NR_preadv2 286
 #define __NR_prlimit64 261
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 270
 #define __NR_process_vm_writev 271
 #define __NR_pselect6 72
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h b/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h
index d4c7b10..1a4873f 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h
@@ -240,6 +240,7 @@
 #define __NR_preadv2 376
 #define __NR_prlimit64 334
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 340
 #define __NR_process_vm_writev 341
 #define __NR_pselect6 301
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h b/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h
index bd8c78d..2af4607 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h
@@ -211,6 +211,7 @@
 #define __NR_preadv2 376
 #define __NR_prlimit64 334
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 340
 #define __NR_process_vm_writev 341
 #define __NR_pselect6 301
diff --git a/sysdeps/unix/sysv/linux/sh/arch-syscall.h b/sysdeps/unix/sysv/linux/sh/arch-syscall.h
index 3b6ac3d..7b422ce 100644
--- a/sysdeps/unix/sysv/linux/sh/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/sh/arch-syscall.h
@@ -237,6 +237,7 @@
 #define __NR_preadv2 381
 #define __NR_prlimit64 339
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 365
 #define __NR_process_vm_writev 366
 #define __NR_pselect6 308
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/arch-syscall.h b/sysdeps/unix/sysv/linux/sparc/sparc32/arch-syscall.h
index 35221a7..77c3cc6 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/arch-syscall.h
@@ -242,6 +242,7 @@
 #define __NR_preadv2 358
 #define __NR_prlimit64 331
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 338
 #define __NR_process_vm_writev 339
 #define __NR_pselect6 297
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/arch-syscall.h b/sysdeps/unix/sysv/linux/sparc/sparc64/arch-syscall.h
index 5ba2b20..7ad50bc 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/arch-syscall.h
@@ -222,6 +222,7 @@
 #define __NR_preadv2 358
 #define __NR_prlimit64 331
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 338
 #define __NR_process_vm_writev 339
 #define __NR_pselect6 297
diff --git a/sysdeps/unix/sysv/linux/syscall-names.list b/sysdeps/unix/sysv/linux/syscall-names.list
index fd98893..1a74d09 100644
--- a/sysdeps/unix/sysv/linux/syscall-names.list
+++ b/sysdeps/unix/sysv/linux/syscall-names.list
@@ -21,8 +21,8 @@
 # This file can list all potential system calls.  The names are only
 # used if the installed kernel headers also provide them.
 
-# The list of system calls is current as of Linux 5.14.
-kernel 5.14
+# The list of system calls is current as of Linux 5.15.
+kernel 5.15
 
 FAST_atomic_update
 FAST_cmpxchg
@@ -440,6 +440,7 @@ preadv
 preadv2
 prlimit64
 process_madvise
+process_mrelease
 process_vm_readv
 process_vm_writev
 prof
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/arch-syscall.h b/sysdeps/unix/sysv/linux/x86_64/64/arch-syscall.h
index 26d6ac6..3ce2a1f 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/x86_64/64/arch-syscall.h
@@ -215,6 +215,7 @@
 #define __NR_preadv2 327
 #define __NR_prlimit64 302
 #define __NR_process_madvise 440
+#define __NR_process_mrelease 448
 #define __NR_process_vm_readv 310
 #define __NR_process_vm_writev 311
 #define __NR_pselect6 270
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h b/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h
index 3684778..9e87e89 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h
@@ -208,6 +208,7 @@
 #define __NR_preadv2 1073742370
 #define __NR_prlimit64 1073742126
 #define __NR_process_madvise 1073742264
+#define __NR_process_mrelease 1073742272
 #define __NR_process_vm_readv 1073742363
 #define __NR_process_vm_writev 1073742364
 #define __NR_pselect6 1073742094
