diff options
Diffstat (limited to 'security/tomoyo/domain.c')
| -rw-r--r-- | security/tomoyo/domain.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c index aed9e3ef2c9e..5f9ccab26e9a 100644 --- a/security/tomoyo/domain.c +++ b/security/tomoyo/domain.c @@ -722,10 +722,17 @@ int tomoyo_find_next_domain(struct linux_binprm *bprm) ee->bprm = bprm; ee->r.obj = &ee->obj; ee->obj.path1 = bprm->file->f_path; - /* Get symlink's pathname of program. */ + /* + * Get symlink's pathname of program, but fallback to realpath if + * symlink's pathname does not exist or symlink's pathname refers + * to proc filesystem (e.g. /dev/fd/<num> or /proc/self/fd/<num> ). + */ exename.name = tomoyo_realpath_nofollow(original_name); + if (exename.name && !strncmp(exename.name, "proc:/", 6)) { + kfree(exename.name); + exename.name = NULL; + } if (!exename.name) { - /* Fallback to realpath if symlink's pathname does not exist. */ exename.name = tomoyo_realpath_from_path(&bprm->file->f_path); if (!exename.name) goto out; @@ -913,7 +920,7 @@ bool tomoyo_dump_page(struct linux_binprm *bprm, unsigned long pos, #ifdef CONFIG_MMU /* * This is called at execve() time in order to dig around - * in the argv/environment of the new proceess + * in the argv/environment of the new process * (represented by bprm). */ mmap_read_lock(bprm->mm); |