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fchownat: remove setuid and setgid bits on a chown

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Matheus
2024-08-30 19:23:53 -03:00
parent 394e416d2b
commit bd98478b6c
1 changed files with 1 additions and 2 deletions
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kernel-src/sys/syscalls/fchownat.c
+1 -2
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@@ -63,12 +63,11 @@ syscallret_t syscall_fchownat(context_t *, int fd, char *upath, uid_t owner, gid
goto cleanup; goto cleanup;
} }
// TODO retain set uid and set gid bits if an auth access was ok
attr.uid = owner; attr.uid = owner;
attr.gid = group; attr.gid = group;
attr.mode = (attr.mode) & ~(V_ATTR_MODE_SGID | V_ATTR_MODE_SUID); attr.mode = (attr.mode) & ~(V_ATTR_MODE_SGID | V_ATTR_MODE_SUID);
ret.errno = VOP_SETATTR(node, &attr, ((owner == -1) ? 0 : V_ATTR_UID) | ((group == -1) ? 0 : V_ATTR_GID), &_cpu()->thread->proc->cred); ret.errno = VOP_SETATTR(node, &attr, ((owner == -1) ? 0 : V_ATTR_UID) | ((group == -1) ? 0 : V_ATTR_GID) | ((group + owner == -2) ? 0 : V_ATTR_MODE), &_cpu()->thread->proc->cred);
ret.ret = ret.errno ? -1 : 0; ret.ret = ret.errno ? -1 : 0;
VOP_UNLOCK(node); VOP_UNLOCK(node);