mirror of
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ff388fe5c4
Patch series "Introduce mseal", v10.
This patchset proposes a new mseal() syscall for the Linux kernel.
In a nutshell, mseal() protects the VMAs of a given virtual memory range
against modifications, such as changes to their permission bits.
Modern CPUs support memory permissions, such as the read/write (RW) and
no-execute (NX) bits. Linux has supported NX since the release of kernel
version 2.6.8 in August 2004 [1]. The memory permission feature improves
the security stance on memory corruption bugs, as an attacker cannot
simply write to arbitrary memory and point the code to it. The memory
must be marked with the X bit, or else an exception will occur.
Internally, the kernel maintains the memory permissions in a data
structure called VMA (vm_area_struct). mseal() additionally protects the
VMA itself against modifications of the selected seal type.
Memory sealing is useful to mitigate memory corruption issues where a
corrupted pointer is passed to a memory management system. For example,
such an attacker primitive can break control-flow integrity guarantees
since read-only memory that is supposed to be trusted can become writable
or .text pages can get remapped. Memory sealing can automatically be
applied by the runtime loader to seal .text and .rodata pages and
applications can additionally seal security critical data at runtime. A
similar feature already exists in the XNU kernel with the
VM_FLAGS_PERMANENT [3] flag and on OpenBSD with the mimmutable syscall
[4]. Also, Chrome wants to adopt this feature for their CFI work [2] and
this patchset has been designed to be compatible with the Chrome use case.
Two system calls are involved in sealing the map: mmap() and mseal().
The new mseal() is an syscall on 64 bit CPU, and with following signature:
int mseal(void addr, size_t len, unsigned long flags)
addr/len: memory range.
flags: reserved.
mseal() blocks following operations for the given memory range.
1> Unmapping, moving to another location, and shrinking the size,
via munmap() and mremap(), can leave an empty space, therefore can
be replaced with a VMA with a new set of attributes.
2> Moving or expanding a different VMA into the current location,
via mremap().
3> Modifying a VMA via mmap(MAP_FIXED).
4> Size expansion, via mremap(), does not appear to pose any specific
risks to sealed VMAs. It is included anyway because the use case is
unclear. In any case, users can rely on merging to expand a sealed VMA.
5> mprotect() and pkey_mprotect().
6> Some destructive madvice() behaviors (e.g. MADV_DONTNEED) for anonymous
memory, when users don't have write permission to the memory. Those
behaviors can alter region contents by discarding pages, effectively a
memset(0) for anonymous memory.
The idea that inspired this patch comes from Stephen Röttger’s work in
V8 CFI [5]. Chrome browser in ChromeOS will be the first user of this
API.
Indeed, the Chrome browser has very specific requirements for sealing,
which are distinct from those of most applications. For example, in the
case of libc, sealing is only applied to read-only (RO) or read-execute
(RX) memory segments (such as .text and .RELRO) to prevent them from
becoming writable, the lifetime of those mappings are tied to the lifetime
of the process.
Chrome wants to seal two large address space reservations that are managed
by different allocators. The memory is mapped RW- and RWX respectively
but write access to it is restricted using pkeys (or in the future ARM
permission overlay extensions). The lifetime of those mappings are not
tied to the lifetime of the process, therefore, while the memory is
sealed, the allocators still need to free or discard the unused memory.
For example, with madvise(DONTNEED).
However, always allowing madvise(DONTNEED) on this range poses a security
risk. For example if a jump instruction crosses a page boundary and the
second page gets discarded, it will overwrite the target bytes with zeros
and change the control flow. Checking write-permission before the discard
operation allows us to control when the operation is valid. In this case,
the madvise will only succeed if the executing thread has PKEY write
permissions and PKRU changes are protected in software by control-flow
integrity.
Although the initial version of this patch series is targeting the Chrome
browser as its first user, it became evident during upstream discussions
that we would also want to ensure that the patch set eventually is a
complete solution for memory sealing and compatible with other use cases.
The specific scenario currently in mind is glibc's use case of loading and
sealing ELF executables. To this end, Stephen is working on a change to
glibc to add sealing support to the dynamic linker, which will seal all
non-writable segments at startup. Once this work is completed, all
applications will be able to automatically benefit from these new
protections.
In closing, I would like to formally acknowledge the valuable
contributions received during the RFC process, which were instrumental in
shaping this patch:
Jann Horn: raising awareness and providing valuable insights on the
destructive madvise operations.
Liam R. Howlett: perf optimization.
Linus Torvalds: assisting in defining system call signature and scope.
Theo de Raadt: sharing the experiences and insight gained from
implementing mimmutable() in OpenBSD.
MM perf benchmarks
==================
This patch adds a loop in the mprotect/munmap/madvise(DONTNEED) to
check the VMAs’ sealing flag, so that no partial update can be made,
when any segment within the given memory range is sealed.
To measure the performance impact of this loop, two tests are developed.
[8]
The first is measuring the time taken for a particular system call,
by using clock_gettime(CLOCK_MONOTONIC). The second is using
PERF_COUNT_HW_REF_CPU_CYCLES (exclude user space). Both tests have
similar results.
The tests have roughly below sequence:
for (i = 0; i < 1000, i++)
create 1000 mappings (1 page per VMA)
start the sampling
for (j = 0; j < 1000, j++)
mprotect one mapping
stop and save the sample
delete 1000 mappings
calculates all samples.
Below tests are performed on Intel(R) Pentium(R) Gold 7505 @ 2.00GHz,
4G memory, Chromebook.
Based on the latest upstream code:
The first test (measuring time)
syscall__ vmas t t_mseal delta_ns per_vma %
munmap__ 1 909 944 35 35 104%
munmap__ 2 1398 1502 104 52 107%
munmap__ 4 2444 2594 149 37 106%
munmap__ 8 4029 4323 293 37 107%
munmap__ 16 6647 6935 288 18 104%
munmap__ 32 11811 12398 587 18 105%
mprotect 1 439 465 26 26 106%
mprotect 2 1659 1745 86 43 105%
mprotect 4 3747 3889 142 36 104%
mprotect 8 6755 6969 215 27 103%
mprotect 16 13748 14144 396 25 103%
mprotect 32 27827 28969 1142 36 104%
madvise_ 1 240 262 22 22 109%
madvise_ 2 366 442 76 38 121%
madvise_ 4 623 751 128 32 121%
madvise_ 8 1110 1324 215 27 119%
madvise_ 16 2127 2451 324 20 115%
madvise_ 32 4109 4642 534 17 113%
The second test (measuring cpu cycle)
syscall__ vmas cpu cmseal delta_cpu per_vma %
munmap__ 1 1790 1890 100 100 106%
munmap__ 2 2819 3033 214 107 108%
munmap__ 4 4959 5271 312 78 106%
munmap__ 8 8262 8745 483 60 106%
munmap__ 16 13099 14116 1017 64 108%
munmap__ 32 23221 24785 1565 49 107%
mprotect 1 906 967 62 62 107%
mprotect 2 3019 3203 184 92 106%
mprotect 4 6149 6569 420 105 107%
mprotect 8 9978 10524 545 68 105%
mprotect 16 20448 21427 979 61 105%
mprotect 32 40972 42935 1963 61 105%
madvise_ 1 434 497 63 63 115%
madvise_ 2 752 899 147 74 120%
madvise_ 4 1313 1513 200 50 115%
madvise_ 8 2271 2627 356 44 116%
madvise_ 16 4312 4883 571 36 113%
madvise_ 32 8376 9319 943 29 111%
Based on the result, for 6.8 kernel, sealing check adds
20-40 nano seconds, or around 50-100 CPU cycles, per VMA.
In addition, I applied the sealing to 5.10 kernel:
The first test (measuring time)
syscall__ vmas t tmseal delta_ns per_vma %
munmap__ 1 357 390 33 33 109%
munmap__ 2 442 463 21 11 105%
munmap__ 4 614 634 20 5 103%
munmap__ 8 1017 1137 120 15 112%
munmap__ 16 1889 2153 263 16 114%
munmap__ 32 4109 4088 -21 -1 99%
mprotect 1 235 227 -7 -7 97%
mprotect 2 495 464 -30 -15 94%
mprotect 4 741 764 24 6 103%
mprotect 8 1434 1437 2 0 100%
mprotect 16 2958 2991 33 2 101%
mprotect 32 6431 6608 177 6 103%
madvise_ 1 191 208 16 16 109%
madvise_ 2 300 324 24 12 108%
madvise_ 4 450 473 23 6 105%
madvise_ 8 753 806 53 7 107%
madvise_ 16 1467 1592 125 8 108%
madvise_ 32 2795 3405 610 19 122%
The second test (measuring cpu cycle)
syscall__ nbr_vma cpu cmseal delta_cpu per_vma %
munmap__ 1 684 715 31 31 105%
munmap__ 2 861 898 38 19 104%
munmap__ 4 1183 1235 51 13 104%
munmap__ 8 1999 2045 46 6 102%
munmap__ 16 3839 3816 -23 -1 99%
munmap__ 32 7672 7887 216 7 103%
mprotect 1 397 443 46 46 112%
mprotect 2 738 788 50 25 107%
mprotect 4 1221 1256 35 9 103%
mprotect 8 2356 2429 72 9 103%
mprotect 16 4961 4935 -26 -2 99%
mprotect 32 9882 10172 291 9 103%
madvise_ 1 351 380 29 29 108%
madvise_ 2 565 615 49 25 109%
madvise_ 4 872 933 61 15 107%
madvise_ 8 1508 1640 132 16 109%
madvise_ 16 3078 3323 245 15 108%
madvise_ 32 5893 6704 811 25 114%
For 5.10 kernel, sealing check adds 0-15 ns in time, or 10-30
CPU cycles, there is even decrease in some cases.
It might be interesting to compare 5.10 and 6.8 kernel
The first test (measuring time)
syscall__ vmas t_5_10 t_6_8 delta_ns per_vma %
munmap__ 1 357 909 552 552 254%
munmap__ 2 442 1398 956 478 316%
munmap__ 4 614 2444 1830 458 398%
munmap__ 8 1017 4029 3012 377 396%
munmap__ 16 1889 6647 4758 297 352%
munmap__ 32 4109 11811 7702 241 287%
mprotect 1 235 439 204 204 187%
mprotect 2 495 1659 1164 582 335%
mprotect 4 741 3747 3006 752 506%
mprotect 8 1434 6755 5320 665 471%
mprotect 16 2958 13748 10790 674 465%
mprotect 32 6431 27827 21397 669 433%
madvise_ 1 191 240 49 49 125%
madvise_ 2 300 366 67 33 122%
madvise_ 4 450 623 173 43 138%
madvise_ 8 753 1110 357 45 147%
madvise_ 16 1467 2127 660 41 145%
madvise_ 32 2795 4109 1314 41 147%
The second test (measuring cpu cycle)
syscall__ vmas cpu_5_10 c_6_8 delta_cpu per_vma %
munmap__ 1 684 1790 1106 1106 262%
munmap__ 2 861 2819 1958 979 327%
munmap__ 4 1183 4959 3776 944 419%
munmap__ 8 1999 8262 6263 783 413%
munmap__ 16 3839 13099 9260 579 341%
munmap__ 32 7672 23221 15549 486 303%
mprotect 1 397 906 509 509 228%
mprotect 2 738 3019 2281 1140 409%
mprotect 4 1221 6149 4929 1232 504%
mprotect 8 2356 9978 7622 953 423%
mprotect 16 4961 20448 15487 968 412%
mprotect 32 9882 40972 31091 972 415%
madvise_ 1 351 434 82 82 123%
madvise_ 2 565 752 186 93 133%
madvise_ 4 872 1313 442 110 151%
madvise_ 8 1508 2271 763 95 151%
madvise_ 16 3078 4312 1234 77 140%
madvise_ 32 5893 8376 2483 78 142%
From 5.10 to 6.8
munmap: added 250-550 ns in time, or 500-1100 in cpu cycle, per vma.
mprotect: added 200-750 ns in time, or 500-1200 in cpu cycle, per vma.
madvise: added 33-50 ns in time, or 70-110 in cpu cycle, per vma.
In comparison to mseal, which adds 20-40 ns or 50-100 CPU cycles, the
increase from 5.10 to 6.8 is significantly larger, approximately ten times
greater for munmap and mprotect.
When I discuss the mm performance with Brian Makin, an engineer who worked
on performance, it was brought to my attention that such performance
benchmarks, which measuring millions of mm syscall in a tight loop, may
not accurately reflect real-world scenarios, such as that of a database
service. Also this is tested using a single HW and ChromeOS, the data
from another HW or distribution might be different. It might be best to
take this data with a grain of salt.
This patch (of 5):
Wire up mseal syscall for all architectures.
Link: https://lkml.kernel.org/r/20240415163527.626541-1-jeffxu@chromium.org
Link: https://lkml.kernel.org/r/20240415163527.626541-2-jeffxu@chromium.org
Signed-off-by: Jeff Xu <jeffxu@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guenter Roeck <groeck@chromium.org>
Cc: Jann Horn <jannh@google.com> [Bug #2]
Cc: Jeff Xu <jeffxu@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Jorge Lucangeli Obes <jorgelo@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Pedro Falcato <pedro.falcato@gmail.com>
Cc: Stephen Röttger <sroettger@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Amer Al Shanawany <amer.shanawany@gmail.com>
Cc: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
505 lines
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505 lines
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# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
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#
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# system call numbers and entry vectors for alpha
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#
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# The format is:
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# <number> <abi> <name> <entry point>
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#
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# The <abi> is always "common" for this file
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#
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0 common osf_syscall alpha_syscall_zero
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1 common exit sys_exit
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2 common fork alpha_fork
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3 common read sys_read
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4 common write sys_write
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5 common osf_old_open sys_ni_syscall
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6 common close sys_close
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7 common osf_wait4 sys_osf_wait4
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8 common osf_old_creat sys_ni_syscall
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9 common link sys_link
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10 common unlink sys_unlink
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11 common osf_execve sys_ni_syscall
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12 common chdir sys_chdir
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13 common fchdir sys_fchdir
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14 common mknod sys_mknod
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15 common chmod sys_chmod
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16 common chown sys_chown
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17 common brk sys_osf_brk
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18 common osf_getfsstat sys_ni_syscall
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19 common lseek sys_lseek
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20 common getxpid sys_getxpid
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21 common osf_mount sys_osf_mount
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22 common umount2 sys_umount
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23 common setuid sys_setuid
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24 common getxuid sys_getxuid
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25 common exec_with_loader sys_ni_syscall
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26 common ptrace sys_ptrace
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27 common osf_nrecvmsg sys_ni_syscall
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28 common osf_nsendmsg sys_ni_syscall
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29 common osf_nrecvfrom sys_ni_syscall
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30 common osf_naccept sys_ni_syscall
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31 common osf_ngetpeername sys_ni_syscall
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32 common osf_ngetsockname sys_ni_syscall
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33 common access sys_access
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34 common osf_chflags sys_ni_syscall
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35 common osf_fchflags sys_ni_syscall
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36 common sync sys_sync
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37 common kill sys_kill
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38 common osf_old_stat sys_ni_syscall
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39 common setpgid sys_setpgid
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40 common osf_old_lstat sys_ni_syscall
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41 common dup sys_dup
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42 common pipe sys_alpha_pipe
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43 common osf_set_program_attributes sys_osf_set_program_attributes
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44 common osf_profil sys_ni_syscall
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45 common open sys_open
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46 common osf_old_sigaction sys_ni_syscall
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47 common getxgid sys_getxgid
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48 common osf_sigprocmask sys_osf_sigprocmask
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49 common osf_getlogin sys_ni_syscall
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50 common osf_setlogin sys_ni_syscall
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51 common acct sys_acct
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52 common sigpending sys_sigpending
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54 common ioctl sys_ioctl
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55 common osf_reboot sys_ni_syscall
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56 common osf_revoke sys_ni_syscall
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57 common symlink sys_symlink
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58 common readlink sys_readlink
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59 common execve sys_execve
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60 common umask sys_umask
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61 common chroot sys_chroot
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62 common osf_old_fstat sys_ni_syscall
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63 common getpgrp sys_getpgrp
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64 common getpagesize sys_getpagesize
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65 common osf_mremap sys_ni_syscall
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66 common vfork alpha_vfork
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67 common stat sys_newstat
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68 common lstat sys_newlstat
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69 common osf_sbrk sys_ni_syscall
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70 common osf_sstk sys_ni_syscall
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71 common mmap sys_osf_mmap
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72 common osf_old_vadvise sys_ni_syscall
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73 common munmap sys_munmap
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74 common mprotect sys_mprotect
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75 common madvise sys_madvise
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76 common vhangup sys_vhangup
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77 common osf_kmodcall sys_ni_syscall
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78 common osf_mincore sys_ni_syscall
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79 common getgroups sys_getgroups
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80 common setgroups sys_setgroups
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81 common osf_old_getpgrp sys_ni_syscall
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82 common setpgrp sys_setpgid
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83 common osf_setitimer compat_sys_setitimer
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84 common osf_old_wait sys_ni_syscall
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85 common osf_table sys_ni_syscall
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86 common osf_getitimer compat_sys_getitimer
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87 common gethostname sys_gethostname
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88 common sethostname sys_sethostname
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89 common getdtablesize sys_getdtablesize
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90 common dup2 sys_dup2
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91 common fstat sys_newfstat
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92 common fcntl sys_fcntl
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93 common osf_select sys_osf_select
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94 common poll sys_poll
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95 common fsync sys_fsync
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96 common setpriority sys_setpriority
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97 common socket sys_socket
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98 common connect sys_connect
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99 common accept sys_accept
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100 common getpriority sys_osf_getpriority
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101 common send sys_send
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102 common recv sys_recv
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103 common sigreturn sys_sigreturn
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104 common bind sys_bind
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105 common setsockopt sys_setsockopt
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106 common listen sys_listen
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107 common osf_plock sys_ni_syscall
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108 common osf_old_sigvec sys_ni_syscall
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109 common osf_old_sigblock sys_ni_syscall
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110 common osf_old_sigsetmask sys_ni_syscall
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111 common sigsuspend sys_sigsuspend
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112 common osf_sigstack sys_osf_sigstack
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113 common recvmsg sys_recvmsg
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114 common sendmsg sys_sendmsg
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115 common osf_old_vtrace sys_ni_syscall
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116 common osf_gettimeofday sys_osf_gettimeofday
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117 common osf_getrusage sys_osf_getrusage
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118 common getsockopt sys_getsockopt
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120 common readv sys_readv
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121 common writev sys_writev
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122 common osf_settimeofday sys_osf_settimeofday
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123 common fchown sys_fchown
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124 common fchmod sys_fchmod
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125 common recvfrom sys_recvfrom
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126 common setreuid sys_setreuid
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127 common setregid sys_setregid
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128 common rename sys_rename
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129 common truncate sys_truncate
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130 common ftruncate sys_ftruncate
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131 common flock sys_flock
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132 common setgid sys_setgid
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133 common sendto sys_sendto
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134 common shutdown sys_shutdown
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135 common socketpair sys_socketpair
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136 common mkdir sys_mkdir
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137 common rmdir sys_rmdir
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138 common osf_utimes sys_osf_utimes
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139 common osf_old_sigreturn sys_ni_syscall
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140 common osf_adjtime sys_ni_syscall
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141 common getpeername sys_getpeername
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142 common osf_gethostid sys_ni_syscall
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143 common osf_sethostid sys_ni_syscall
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144 common getrlimit sys_getrlimit
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145 common setrlimit sys_setrlimit
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146 common osf_old_killpg sys_ni_syscall
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147 common setsid sys_setsid
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148 common quotactl sys_quotactl
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149 common osf_oldquota sys_ni_syscall
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150 common getsockname sys_getsockname
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153 common osf_pid_block sys_ni_syscall
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154 common osf_pid_unblock sys_ni_syscall
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156 common sigaction sys_osf_sigaction
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157 common osf_sigwaitprim sys_ni_syscall
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158 common osf_nfssvc sys_ni_syscall
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159 common osf_getdirentries sys_osf_getdirentries
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160 common osf_statfs sys_osf_statfs
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161 common osf_fstatfs sys_osf_fstatfs
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163 common osf_asynch_daemon sys_ni_syscall
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164 common osf_getfh sys_ni_syscall
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165 common osf_getdomainname sys_osf_getdomainname
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166 common setdomainname sys_setdomainname
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169 common osf_exportfs sys_ni_syscall
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181 common osf_alt_plock sys_ni_syscall
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184 common osf_getmnt sys_ni_syscall
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187 common osf_alt_sigpending sys_ni_syscall
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188 common osf_alt_setsid sys_ni_syscall
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199 common osf_swapon sys_swapon
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200 common msgctl sys_old_msgctl
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201 common msgget sys_msgget
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202 common msgrcv sys_msgrcv
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203 common msgsnd sys_msgsnd
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204 common semctl sys_old_semctl
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205 common semget sys_semget
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206 common semop sys_semop
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207 common osf_utsname sys_osf_utsname
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208 common lchown sys_lchown
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209 common shmat sys_shmat
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210 common shmctl sys_old_shmctl
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211 common shmdt sys_shmdt
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212 common shmget sys_shmget
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213 common osf_mvalid sys_ni_syscall
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214 common osf_getaddressconf sys_ni_syscall
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215 common osf_msleep sys_ni_syscall
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216 common osf_mwakeup sys_ni_syscall
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217 common msync sys_msync
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218 common osf_signal sys_ni_syscall
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219 common osf_utc_gettime sys_ni_syscall
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220 common osf_utc_adjtime sys_ni_syscall
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222 common osf_security sys_ni_syscall
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223 common osf_kloadcall sys_ni_syscall
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224 common osf_stat sys_osf_stat
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225 common osf_lstat sys_osf_lstat
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226 common osf_fstat sys_osf_fstat
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227 common osf_statfs64 sys_osf_statfs64
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228 common osf_fstatfs64 sys_osf_fstatfs64
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233 common getpgid sys_getpgid
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234 common getsid sys_getsid
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235 common sigaltstack sys_sigaltstack
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236 common osf_waitid sys_ni_syscall
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237 common osf_priocntlset sys_ni_syscall
|
|
238 common osf_sigsendset sys_ni_syscall
|
|
239 common osf_set_speculative sys_ni_syscall
|
|
240 common osf_msfs_syscall sys_ni_syscall
|
|
241 common osf_sysinfo sys_osf_sysinfo
|
|
242 common osf_uadmin sys_ni_syscall
|
|
243 common osf_fuser sys_ni_syscall
|
|
244 common osf_proplist_syscall sys_osf_proplist_syscall
|
|
245 common osf_ntp_adjtime sys_ni_syscall
|
|
246 common osf_ntp_gettime sys_ni_syscall
|
|
247 common osf_pathconf sys_ni_syscall
|
|
248 common osf_fpathconf sys_ni_syscall
|
|
250 common osf_uswitch sys_ni_syscall
|
|
251 common osf_usleep_thread sys_osf_usleep_thread
|
|
252 common osf_audcntl sys_ni_syscall
|
|
253 common osf_audgen sys_ni_syscall
|
|
254 common sysfs sys_sysfs
|
|
255 common osf_subsys_info sys_ni_syscall
|
|
256 common osf_getsysinfo sys_osf_getsysinfo
|
|
257 common osf_setsysinfo sys_osf_setsysinfo
|
|
258 common osf_afs_syscall sys_ni_syscall
|
|
259 common osf_swapctl sys_ni_syscall
|
|
260 common osf_memcntl sys_ni_syscall
|
|
261 common osf_fdatasync sys_ni_syscall
|
|
300 common bdflush sys_ni_syscall
|
|
301 common sethae sys_sethae
|
|
302 common mount sys_mount
|
|
303 common old_adjtimex sys_old_adjtimex
|
|
304 common swapoff sys_swapoff
|
|
305 common getdents sys_getdents
|
|
306 common create_module sys_ni_syscall
|
|
307 common init_module sys_init_module
|
|
308 common delete_module sys_delete_module
|
|
309 common get_kernel_syms sys_ni_syscall
|
|
310 common syslog sys_syslog
|
|
311 common reboot sys_reboot
|
|
312 common clone alpha_clone
|
|
313 common uselib sys_uselib
|
|
314 common mlock sys_mlock
|
|
315 common munlock sys_munlock
|
|
316 common mlockall sys_mlockall
|
|
317 common munlockall sys_munlockall
|
|
318 common sysinfo sys_sysinfo
|
|
319 common _sysctl sys_ni_syscall
|
|
# 320 was sys_idle
|
|
321 common oldumount sys_oldumount
|
|
322 common swapon sys_swapon
|
|
323 common times sys_times
|
|
324 common personality sys_personality
|
|
325 common setfsuid sys_setfsuid
|
|
326 common setfsgid sys_setfsgid
|
|
327 common ustat sys_ustat
|
|
328 common statfs sys_statfs
|
|
329 common fstatfs sys_fstatfs
|
|
330 common sched_setparam sys_sched_setparam
|
|
331 common sched_getparam sys_sched_getparam
|
|
332 common sched_setscheduler sys_sched_setscheduler
|
|
333 common sched_getscheduler sys_sched_getscheduler
|
|
334 common sched_yield sys_sched_yield
|
|
335 common sched_get_priority_max sys_sched_get_priority_max
|
|
336 common sched_get_priority_min sys_sched_get_priority_min
|
|
337 common sched_rr_get_interval sys_sched_rr_get_interval
|
|
338 common afs_syscall sys_ni_syscall
|
|
339 common uname sys_newuname
|
|
340 common nanosleep sys_nanosleep
|
|
341 common mremap sys_mremap
|
|
342 common nfsservctl sys_ni_syscall
|
|
343 common setresuid sys_setresuid
|
|
344 common getresuid sys_getresuid
|
|
345 common pciconfig_read sys_pciconfig_read
|
|
346 common pciconfig_write sys_pciconfig_write
|
|
347 common query_module sys_ni_syscall
|
|
348 common prctl sys_prctl
|
|
349 common pread64 sys_pread64
|
|
350 common pwrite64 sys_pwrite64
|
|
351 common rt_sigreturn sys_rt_sigreturn
|
|
352 common rt_sigaction sys_rt_sigaction
|
|
353 common rt_sigprocmask sys_rt_sigprocmask
|
|
354 common rt_sigpending sys_rt_sigpending
|
|
355 common rt_sigtimedwait sys_rt_sigtimedwait
|
|
356 common rt_sigqueueinfo sys_rt_sigqueueinfo
|
|
357 common rt_sigsuspend sys_rt_sigsuspend
|
|
358 common select sys_select
|
|
359 common gettimeofday sys_gettimeofday
|
|
360 common settimeofday sys_settimeofday
|
|
361 common getitimer sys_getitimer
|
|
362 common setitimer sys_setitimer
|
|
363 common utimes sys_utimes
|
|
364 common getrusage sys_getrusage
|
|
365 common wait4 sys_wait4
|
|
366 common adjtimex sys_adjtimex
|
|
367 common getcwd sys_getcwd
|
|
368 common capget sys_capget
|
|
369 common capset sys_capset
|
|
370 common sendfile sys_sendfile64
|
|
371 common setresgid sys_setresgid
|
|
372 common getresgid sys_getresgid
|
|
373 common dipc sys_ni_syscall
|
|
374 common pivot_root sys_pivot_root
|
|
375 common mincore sys_mincore
|
|
376 common pciconfig_iobase sys_pciconfig_iobase
|
|
377 common getdents64 sys_getdents64
|
|
378 common gettid sys_gettid
|
|
379 common readahead sys_readahead
|
|
# 380 is unused
|
|
381 common tkill sys_tkill
|
|
382 common setxattr sys_setxattr
|
|
383 common lsetxattr sys_lsetxattr
|
|
384 common fsetxattr sys_fsetxattr
|
|
385 common getxattr sys_getxattr
|
|
386 common lgetxattr sys_lgetxattr
|
|
387 common fgetxattr sys_fgetxattr
|
|
388 common listxattr sys_listxattr
|
|
389 common llistxattr sys_llistxattr
|
|
390 common flistxattr sys_flistxattr
|
|
391 common removexattr sys_removexattr
|
|
392 common lremovexattr sys_lremovexattr
|
|
393 common fremovexattr sys_fremovexattr
|
|
394 common futex sys_futex
|
|
395 common sched_setaffinity sys_sched_setaffinity
|
|
396 common sched_getaffinity sys_sched_getaffinity
|
|
397 common tuxcall sys_ni_syscall
|
|
398 common io_setup sys_io_setup
|
|
399 common io_destroy sys_io_destroy
|
|
400 common io_getevents sys_io_getevents
|
|
401 common io_submit sys_io_submit
|
|
402 common io_cancel sys_io_cancel
|
|
405 common exit_group sys_exit_group
|
|
406 common lookup_dcookie sys_ni_syscall
|
|
407 common epoll_create sys_epoll_create
|
|
408 common epoll_ctl sys_epoll_ctl
|
|
409 common epoll_wait sys_epoll_wait
|
|
410 common remap_file_pages sys_remap_file_pages
|
|
411 common set_tid_address sys_set_tid_address
|
|
412 common restart_syscall sys_restart_syscall
|
|
413 common fadvise64 sys_fadvise64
|
|
414 common timer_create sys_timer_create
|
|
415 common timer_settime sys_timer_settime
|
|
416 common timer_gettime sys_timer_gettime
|
|
417 common timer_getoverrun sys_timer_getoverrun
|
|
418 common timer_delete sys_timer_delete
|
|
419 common clock_settime sys_clock_settime
|
|
420 common clock_gettime sys_clock_gettime
|
|
421 common clock_getres sys_clock_getres
|
|
422 common clock_nanosleep sys_clock_nanosleep
|
|
423 common semtimedop sys_semtimedop
|
|
424 common tgkill sys_tgkill
|
|
425 common stat64 sys_stat64
|
|
426 common lstat64 sys_lstat64
|
|
427 common fstat64 sys_fstat64
|
|
428 common vserver sys_ni_syscall
|
|
429 common mbind sys_ni_syscall
|
|
430 common get_mempolicy sys_ni_syscall
|
|
431 common set_mempolicy sys_ni_syscall
|
|
432 common mq_open sys_mq_open
|
|
433 common mq_unlink sys_mq_unlink
|
|
434 common mq_timedsend sys_mq_timedsend
|
|
435 common mq_timedreceive sys_mq_timedreceive
|
|
436 common mq_notify sys_mq_notify
|
|
437 common mq_getsetattr sys_mq_getsetattr
|
|
438 common waitid sys_waitid
|
|
439 common add_key sys_add_key
|
|
440 common request_key sys_request_key
|
|
441 common keyctl sys_keyctl
|
|
442 common ioprio_set sys_ioprio_set
|
|
443 common ioprio_get sys_ioprio_get
|
|
444 common inotify_init sys_inotify_init
|
|
445 common inotify_add_watch sys_inotify_add_watch
|
|
446 common inotify_rm_watch sys_inotify_rm_watch
|
|
447 common fdatasync sys_fdatasync
|
|
448 common kexec_load sys_kexec_load
|
|
449 common migrate_pages sys_migrate_pages
|
|
450 common openat sys_openat
|
|
451 common mkdirat sys_mkdirat
|
|
452 common mknodat sys_mknodat
|
|
453 common fchownat sys_fchownat
|
|
454 common futimesat sys_futimesat
|
|
455 common fstatat64 sys_fstatat64
|
|
456 common unlinkat sys_unlinkat
|
|
457 common renameat sys_renameat
|
|
458 common linkat sys_linkat
|
|
459 common symlinkat sys_symlinkat
|
|
460 common readlinkat sys_readlinkat
|
|
461 common fchmodat sys_fchmodat
|
|
462 common faccessat sys_faccessat
|
|
463 common pselect6 sys_pselect6
|
|
464 common ppoll sys_ppoll
|
|
465 common unshare sys_unshare
|
|
466 common set_robust_list sys_set_robust_list
|
|
467 common get_robust_list sys_get_robust_list
|
|
468 common splice sys_splice
|
|
469 common sync_file_range sys_sync_file_range
|
|
470 common tee sys_tee
|
|
471 common vmsplice sys_vmsplice
|
|
472 common move_pages sys_move_pages
|
|
473 common getcpu sys_getcpu
|
|
474 common epoll_pwait sys_epoll_pwait
|
|
475 common utimensat sys_utimensat
|
|
476 common signalfd sys_signalfd
|
|
477 common timerfd sys_ni_syscall
|
|
478 common eventfd sys_eventfd
|
|
479 common recvmmsg sys_recvmmsg
|
|
480 common fallocate sys_fallocate
|
|
481 common timerfd_create sys_timerfd_create
|
|
482 common timerfd_settime sys_timerfd_settime
|
|
483 common timerfd_gettime sys_timerfd_gettime
|
|
484 common signalfd4 sys_signalfd4
|
|
485 common eventfd2 sys_eventfd2
|
|
486 common epoll_create1 sys_epoll_create1
|
|
487 common dup3 sys_dup3
|
|
488 common pipe2 sys_pipe2
|
|
489 common inotify_init1 sys_inotify_init1
|
|
490 common preadv sys_preadv
|
|
491 common pwritev sys_pwritev
|
|
492 common rt_tgsigqueueinfo sys_rt_tgsigqueueinfo
|
|
493 common perf_event_open sys_perf_event_open
|
|
494 common fanotify_init sys_fanotify_init
|
|
495 common fanotify_mark sys_fanotify_mark
|
|
496 common prlimit64 sys_prlimit64
|
|
497 common name_to_handle_at sys_name_to_handle_at
|
|
498 common open_by_handle_at sys_open_by_handle_at
|
|
499 common clock_adjtime sys_clock_adjtime
|
|
500 common syncfs sys_syncfs
|
|
501 common setns sys_setns
|
|
502 common accept4 sys_accept4
|
|
503 common sendmmsg sys_sendmmsg
|
|
504 common process_vm_readv sys_process_vm_readv
|
|
505 common process_vm_writev sys_process_vm_writev
|
|
506 common kcmp sys_kcmp
|
|
507 common finit_module sys_finit_module
|
|
508 common sched_setattr sys_sched_setattr
|
|
509 common sched_getattr sys_sched_getattr
|
|
510 common renameat2 sys_renameat2
|
|
511 common getrandom sys_getrandom
|
|
512 common memfd_create sys_memfd_create
|
|
513 common execveat sys_execveat
|
|
514 common seccomp sys_seccomp
|
|
515 common bpf sys_bpf
|
|
516 common userfaultfd sys_userfaultfd
|
|
517 common membarrier sys_membarrier
|
|
518 common mlock2 sys_mlock2
|
|
519 common copy_file_range sys_copy_file_range
|
|
520 common preadv2 sys_preadv2
|
|
521 common pwritev2 sys_pwritev2
|
|
522 common statx sys_statx
|
|
523 common io_pgetevents sys_io_pgetevents
|
|
524 common pkey_mprotect sys_pkey_mprotect
|
|
525 common pkey_alloc sys_pkey_alloc
|
|
526 common pkey_free sys_pkey_free
|
|
527 common rseq sys_rseq
|
|
528 common statfs64 sys_statfs64
|
|
529 common fstatfs64 sys_fstatfs64
|
|
530 common getegid sys_getegid
|
|
531 common geteuid sys_geteuid
|
|
532 common getppid sys_getppid
|
|
# all other architectures have common numbers for new syscall, alpha
|
|
# is the exception.
|
|
534 common pidfd_send_signal sys_pidfd_send_signal
|
|
535 common io_uring_setup sys_io_uring_setup
|
|
536 common io_uring_enter sys_io_uring_enter
|
|
537 common io_uring_register sys_io_uring_register
|
|
538 common open_tree sys_open_tree
|
|
539 common move_mount sys_move_mount
|
|
540 common fsopen sys_fsopen
|
|
541 common fsconfig sys_fsconfig
|
|
542 common fsmount sys_fsmount
|
|
543 common fspick sys_fspick
|
|
544 common pidfd_open sys_pidfd_open
|
|
545 common clone3 alpha_clone3
|
|
546 common close_range sys_close_range
|
|
547 common openat2 sys_openat2
|
|
548 common pidfd_getfd sys_pidfd_getfd
|
|
549 common faccessat2 sys_faccessat2
|
|
550 common process_madvise sys_process_madvise
|
|
551 common epoll_pwait2 sys_epoll_pwait2
|
|
552 common mount_setattr sys_mount_setattr
|
|
553 common quotactl_fd sys_quotactl_fd
|
|
554 common landlock_create_ruleset sys_landlock_create_ruleset
|
|
555 common landlock_add_rule sys_landlock_add_rule
|
|
556 common landlock_restrict_self sys_landlock_restrict_self
|
|
# 557 reserved for memfd_secret
|
|
558 common process_mrelease sys_process_mrelease
|
|
559 common futex_waitv sys_futex_waitv
|
|
560 common set_mempolicy_home_node sys_ni_syscall
|
|
561 common cachestat sys_cachestat
|
|
562 common fchmodat2 sys_fchmodat2
|
|
563 common map_shadow_stack sys_map_shadow_stack
|
|
564 common futex_wake sys_futex_wake
|
|
565 common futex_wait sys_futex_wait
|
|
566 common futex_requeue sys_futex_requeue
|
|
567 common statmount sys_statmount
|
|
568 common listmount sys_listmount
|
|
569 common lsm_get_self_attr sys_lsm_get_self_attr
|
|
570 common lsm_set_self_attr sys_lsm_set_self_attr
|
|
571 common lsm_list_modules sys_lsm_list_modules
|
|
572 common mseal sys_mseal
|