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Merge pull request #13975 from keszybz/more-seccomp-syscalls 

Add more syscalls to the seccomp lists
This commit is contained in:
Yu Watanabe 2019-11-09 23:27:34 +09:00 committed by GitHub
parent 5021735fad 9493b16871
commit e64664cefe
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 30 additions and 3 deletions
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4
src/nspawn/nspawn-seccomp.c
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@ -123,6 +123,7 @@ static int seccomp_add_default_syscall_filter(
* @cpu-emulation
* @keyring (NB: keyring is not namespaced!)
* @obsolete
* @pkey
* @swap
*
* bpf (NB: bpffs is not namespaced!)
@ -134,9 +135,6 @@ static int seccomp_add_default_syscall_filter(
* nfsservctl
* open_by_handle_at
* perf_event_open
* pkey_alloc
* pkey_free
* pkey_mprotect
* quotactl
*/
};

28
src/shared/seccomp-util.c
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@ -258,12 +258,16 @@ const SyscallFilterSet syscall_filter_sets[_SYSCALL_FILTER_SET_MAX] = {
.help = "System calls that are always permitted",
.value =
"clock_getres\0"
"clock_getres_time64\0"
"clock_gettime\0"
"clock_gettime64\0"
"clock_nanosleep\0"
"clock_nanosleep_time64\0"
"execve\0"
"exit\0"
"exit_group\0"
"futex\0"
"futex_time64\0"
"get_robust_list\0"
"get_thread_area\0"
"getegid\0"
@ -312,6 +316,7 @@ const SyscallFilterSet syscall_filter_sets[_SYSCALL_FILTER_SET_MAX] = {
"io_destroy\0"
"io_getevents\0"
"io_pgetevents\0"
"io_pgetevents_time64\0"
"io_setup\0"
"io_submit\0"
"io_uring_enter\0"
@ -357,7 +362,9 @@ const SyscallFilterSet syscall_filter_sets[_SYSCALL_FILTER_SET_MAX] = {
.value =
"adjtimex\0"
"clock_adjtime\0"
"clock_adjtime64\0"
"clock_settime\0"
"clock_settime64\0"
"settimeofday\0"
"stime\0"
},
@ -465,6 +472,7 @@ const SyscallFilterSet syscall_filter_sets[_SYSCALL_FILTER_SET_MAX] = {
"unlinkat\0"
"utime\0"
"utimensat\0"
"utimensat_time64\0"
"utimes\0"
},
[SYSCALL_FILTER_SET_IO_EVENT] = {
@ -483,7 +491,9 @@ const SyscallFilterSet syscall_filter_sets[_SYSCALL_FILTER_SET_MAX] = {
"eventfd2\0"
"poll\0"
"ppoll\0"
"ppoll_time64\0"
"pselect6\0"
"pselect6_time64\0"
"select\0"
},
[SYSCALL_FILTER_SET_IPC] = {
@ -496,7 +506,9 @@ const SyscallFilterSet syscall_filter_sets[_SYSCALL_FILTER_SET_MAX] = {
"mq_notify\0"
"mq_open\0"
"mq_timedreceive\0"
"mq_timedreceive_time64\0"
"mq_timedsend\0"
"mq_timedsend_time64\0"
"mq_unlink\0"
"msgctl\0"
"msgget\0"
@ -510,6 +522,7 @@ const SyscallFilterSet syscall_filter_sets[_SYSCALL_FILTER_SET_MAX] = {
"semget\0"
"semop\0"
"semtimedop\0"
"semtimedop_time64\0"
"shmat\0"
"shmctl\0"
"shmdt\0"
@ -572,6 +585,7 @@ const SyscallFilterSet syscall_filter_sets[_SYSCALL_FILTER_SET_MAX] = {
"recv\0"
"recvfrom\0"
"recvmmsg\0"
"recvmmsg_time64\0"
"recvmsg\0"
"send\0"
"sendmmsg\0"
@ -615,6 +629,14 @@ const SyscallFilterSet syscall_filter_sets[_SYSCALL_FILTER_SET_MAX] = {
"ustat\0"
"vserver\0"
},
[SYSCALL_FILTER_SET_PKEY] = {
.name = "@pkey",
.help = "System calls used for memory protection keys",
.value =
"pkey_alloc\0"
"pkey_free\0"
"pkey_mprotect\0"
},
[SYSCALL_FILTER_SET_PRIVILEGED] = {
.name = "@privileged",
.help = "All system calls which need super-user capabilities",
@ -747,6 +769,7 @@ const SyscallFilterSet syscall_filter_sets[_SYSCALL_FILTER_SET_MAX] = {
"rt_sigprocmask\0"
"rt_sigsuspend\0"
"rt_sigtimedwait\0"
"rt_sigtimedwait_time64\0"
"sigaction\0"
"sigaltstack\0"
"signal\0"
@ -826,6 +849,7 @@ const SyscallFilterSet syscall_filter_sets[_SYSCALL_FILTER_SET_MAX] = {
"sched_getparam\0"
"sched_getscheduler\0"
"sched_rr_get_interval\0"
"sched_rr_get_interval_time64\0"
"sched_yield\0"
"sendfile\0"
"sendfile64\0"
@ -854,10 +878,14 @@ const SyscallFilterSet syscall_filter_sets[_SYSCALL_FILTER_SET_MAX] = {
"timer_delete\0"
"timer_getoverrun\0"
"timer_gettime\0"
"timer_gettime64\0"
"timer_settime\0"
"timer_settime64\0"
"timerfd_create\0"
"timerfd_gettime\0"
"timerfd_gettime64\0"
"timerfd_settime\0"
"timerfd_settime64\0"
"times\0"
},
};

1
src/shared/seccomp-util.h
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@ -38,6 +38,7 @@ enum {
SYSCALL_FILTER_SET_MOUNT,
SYSCALL_FILTER_SET_NETWORK_IO,
SYSCALL_FILTER_SET_OBSOLETE,
SYSCALL_FILTER_SET_PKEY,
SYSCALL_FILTER_SET_PRIVILEGED,
SYSCALL_FILTER_SET_PROCESS,
SYSCALL_FILTER_SET_RAW_IO,