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| author | Jon Santmyer <jon@jonsantmyer.com> | 2026-10-10 08:24:49 -0400 |
|---|---|---|
| committer | Jon Santmyer <jon@jonsantmyer.com> | 2026-10-10 08:24:49 -0400 |
| commit | c5e3bb7917689bc9ed54fee23a143144fade802d (patch) | |
| tree | 6e62dd4214e50387d94bd0c5f36a1392e842c8d7 /sys/syscall_untyped.c | |
| parent | bf4e93397dbf0647e767a72e98fb15d3b53f0373 (diff) | |
| download | jove-kernel-c5e3bb7917689bc9ed54fee23a143144fade802d.tar.gz jove-kernel-c5e3bb7917689bc9ed54fee23a143144fade802d.tar.bz2 jove-kernel-c5e3bb7917689bc9ed54fee23a143144fade802d.zip | |
add check for pcb retype for correct rootdir layout
Diffstat (limited to 'sys/syscall_untyped.c')
| -rw-r--r-- | sys/syscall_untyped.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/syscall_untyped.c b/sys/syscall_untyped.c index 1ec21c7..c4378ea 100644 --- a/sys/syscall_untyped.c +++ b/sys/syscall_untyped.c @@ -1,8 +1,11 @@ +#include "api/process.h" #include "arch/x86_64/hal/obj.h" #include "hal/memory.h" +#include "hal/obj.h" #include "jove.h" #include "lib/printf.h" #include "proc/process.h" +#include "sys/objdir.h" #include "syscall.h" static int @@ -91,6 +94,10 @@ s_syscall_untyped_retype_pcb(jove_owned_obj_t *untyped_obj, return -errno; } CHECK_OBJPERM(objdir_obj, JOVE_PERM_ALL, "New PCB needs full access to it's root objdir!"); + if(!objdir_compare(objdir_obj.obj, PCB_ROOTDIR_SELF_I, obj_asunowned(untyped_obj))) { + klogf("Untyped is not in objdir entry %i\n", PCB_ROOTDIR_SELF_I); + return -EBADPATH; + } obj_settype(untyped_obj, JOVE_OBJ_PCB); return pcb_new(untyped_obj, untyped->limit, objdir_obj.obj); |