ptrace.c (a5a64498c194c82ecad3a2d67cff6231cda8d3dd) ptrace.c (76aac0e9a17742e60d408be1a706e9aaad370891)
1/*
2 * linux/kernel/ptrace.c
3 *
4 * (C) Copyright 1999 Linus Torvalds
5 *
6 * Common interfaces for "ptrace()" which we do not want
7 * to continually duplicate across every architecture.
8 */

--- 109 unchanged lines hidden (view full) ---

118 /* May we inspect the given task?
119 * This check is used both for attaching with ptrace
120 * and for allowing access to sensitive information in /proc.
121 *
122 * ptrace_attach denies several cases that /proc allows
123 * because setting up the necessary parent/child relationship
124 * or halting the specified task is impossible.
125 */
1/*
2 * linux/kernel/ptrace.c
3 *
4 * (C) Copyright 1999 Linus Torvalds
5 *
6 * Common interfaces for "ptrace()" which we do not want
7 * to continually duplicate across every architecture.
8 */

--- 109 unchanged lines hidden (view full) ---

118 /* May we inspect the given task?
119 * This check is used both for attaching with ptrace
120 * and for allowing access to sensitive information in /proc.
121 *
122 * ptrace_attach denies several cases that /proc allows
123 * because setting up the necessary parent/child relationship
124 * or halting the specified task is impossible.
125 */
126 uid_t uid;
127 gid_t gid;
126 int dumpable = 0;
127 /* Don't let security modules deny introspection */
128 if (task == current)
129 return 0;
128 int dumpable = 0;
129 /* Don't let security modules deny introspection */
130 if (task == current)
131 return 0;
130 if (((current->uid != task->euid) ||
131 (current->uid != task->suid) ||
132 (current->uid != task->uid) ||
133 (current->gid != task->egid) ||
134 (current->gid != task->sgid) ||
135 (current->gid != task->gid)) && !capable(CAP_SYS_PTRACE))
132 current_uid_gid(&uid, &gid);
133 if ((uid != task->euid ||
134 uid != task->suid ||
135 uid != task->uid ||
136 gid != task->egid ||
137 gid != task->sgid ||
138 gid != task->gid) && !capable(CAP_SYS_PTRACE))
136 return -EPERM;
137 smp_rmb();
138 if (task->mm)
139 dumpable = get_dumpable(task->mm);
140 if (!dumpable && !capable(CAP_SYS_PTRACE))
141 return -EPERM;
142
143 return security_ptrace_may_access(task, mode);

--- 569 unchanged lines hidden --- 		139 return -EPERM;
140 smp_rmb();
141 if (task->mm)
142 dumpable = get_dumpable(task->mm);
143 if (!dumpable && !capable(CAP_SYS_PTRACE))
144 return -EPERM;
145
146 return security_ptrace_may_access(task, mode);

--- 569 unchanged lines hidden ---