shaba/systemd
1
0
Fork 0
mirror of https://github.com/systemd/systemd.git synced 2024-11-01 00:51:24 +03:00
Code

Merge pull request #7310 from keszybz/missing-pkey_mprotect

Browse Source 
basic/missing: add numbers for pkey_mprotect
This commit is contained in:
Lennart Poettering 2017-11-13 10:55:00 +01:00 committed by GitHub
commit bd1750f7fe
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 32 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
src/basic/missing_syscall.h
View File

@ -319,6 +319,8 @@ static inline ssize_t copy_file_range(int fd_in, loff_t *off_in,
}
#endif
/* ======================================================================= */
#if !HAVE_BPF
# ifndef __NR_bpf
# if defined __i386__
@ -348,3 +350,31 @@ static inline int bpf(int cmd, union bpf_attr *attr, size_t size) {
}
#endif
/* ======================================================================= */
#ifndef __IGNORE_pkey_mprotect
# ifndef __NR_pkey_mprotect
# if defined __i386__
# define __NR_pkey_mprotect 380
# elif defined __x86_64__
# define __NR_pkey_mprotect 329
# elif defined __arm__
# define __NR_pkey_mprotect 394
# elif defined __aarch64__
# define __NR_pkey_mprotect 394
# elif defined _MIPS_SIM
# if _MIPS_SIM == _MIPS_SIM_ABI32
# define __NR_pkey_mprotect 4363
# endif
# if _MIPS_SIM == _MIPS_SIM_NABI32
# define __NR_pkey_mprotect 6327
# endif
# if _MIPS_SIM == _MIPS_SIM_ABI64
# define __NR_pkey_mprotect 5323
# endif
# elif ! defined(__IGNORE_pkey_mprotect)
# warning "__NR_pkey_mprotect not defined for your architecture"
# endif
# endif
#endif

2
src/shared/seccomp-util.c
View File

@ -1440,11 +1440,13 @@ int seccomp_memory_deny_write_execute(void) {
if (r < 0)
continue;
#ifdef __NR_pkey_mprotect
r = add_seccomp_syscall_filter(seccomp, arch, SCMP_SYS(pkey_mprotect),
1,
SCMP_A2(SCMP_CMP_MASKED_EQ, PROT_EXEC, PROT_EXEC));
if (r < 0)
continue;
#endif
if (shmat_syscall != 0) {
r = add_seccomp_syscall_filter(seccomp, arch, SCMP_SYS(shmat),