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Call nosys in case when the incorrect syscall number is specified.

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Reported by:	trinity
This commit is contained in:
dchagin 2015-05-24 17:38:02 +00:00
parent df01339e31
commit 92d496261e
6 changed files with 14 additions and 6 deletions
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8
sys/amd64/linux/linux_sysvec.c
View File

@ -254,10 +254,10 @@ linux_fetch_syscall_args(struct thread *td, struct syscall_args *sa)
sa->args[5] = frame->tf_r9;
sa->code = frame->tf_rax;
if (sa->code >= p->p_sysent->sv_size) {
PROC_LOCK(p);
sigexit(td, SIGILL);
} else
if (sa->code >= p->p_sysent->sv_size)
/* nosys */
sa->callp = &p->p_sysent->sv_table[LINUX_SYS_MAXSYSCALL];
else
sa->callp = &p->p_sysent->sv_table[sa->code];
sa->narg = sa->callp->sy_narg;

2
sys/amd64/linux/syscalls.master
View File

@ -506,3 +506,5 @@
310 AUE_NULL STD { int linux_process_vm_writev(void); }
311 AUE_NULL STD { int linux_kcmp(void); }
312 AUE_NULL STD { int linux_finit_module(void); }
; please, keep this line at the end.
313 AUE_NULL UNIMPL nosys

3
sys/amd64/linux32/linux32_sysvec.c
View File

@ -764,7 +764,8 @@ linux32_fetch_syscall_args(struct thread *td, struct syscall_args *sa)
sa->code = frame->tf_rax;
if (sa->code >= p->p_sysent->sv_size)
sa->callp = &p->p_sysent->sv_table[0];
/* nosys */
sa->callp = &p->p_sysent->sv_table[LINUX_SYS_MAXSYSCALL];
else
sa->callp = &p->p_sysent->sv_table[sa->code];
sa->narg = sa->callp->sy_narg;

2
sys/amd64/linux32/syscalls.master
View File

@ -575,3 +575,5 @@
346 AUE_NULL STD { int linux_setns(void); }
347 AUE_NULL STD { int linux_process_vm_readv(void); }
348 AUE_NULL STD { int linux_process_vm_writev(void); }
; please, keep this line at the end.
349 AUE_NULL UNIMPL nosys

3
sys/i386/linux/linux_sysvec.c
View File

@ -890,7 +890,8 @@ linux_fetch_syscall_args(struct thread *td, struct syscall_args *sa)
sa->args[5] = frame->tf_ebp; /* Unconfirmed */
if (sa->code >= p->p_sysent->sv_size)
sa->callp = &p->p_sysent->sv_table[0];
/* nosys */
sa->callp = &p->p_sysent->sv_table[LINUX_SYS_MAXSYSCALL];
else
sa->callp = &p->p_sysent->sv_table[sa->code];
sa->narg = sa->callp->sy_narg;

2
sys/i386/linux/syscalls.master
View File

@ -583,3 +583,5 @@
346 AUE_NULL STD { int linux_setns(void); }
347 AUE_NULL STD { int linux_process_vm_readv(void); }
348 AUE_NULL STD { int linux_process_vm_writev(void); }
; please, keep this line at the end.
349 AUE_NULL UNIMPL nosys