gentoo resync : 06.12.2017

2 files changed, 0 insertions, 271 deletions

diff --git a/sys-kernel/pf-sources/Manifest b/sys-kernel/pf-sources/Manifest
index 894a0afe3301..ad1c5c7a3384 100644
--- a/sys-kernel/pf-sources/Manifest
+++ b/sys-kernel/pf-sources/Manifest
@@ -1,4 +1,3 @@
-AUX 2100_proc-mem-handling-fix.patch 6683 BLAKE2B f903eb437f2251c06d61b0618bfc5e9b930dbe9afb810efb7953d6fa90b5ac57eb0e528ba8d865c82f31541200b1274d14f2b188202de55e264ec5b5a0043fa5 SHA512 4746b1706cbd1fc2066b3b4a4cdcced65c65072f93f7e8d711841fb49c670455b17fbd6d74f4c7b33f5a75cb36dee503f48a68bc0d99c01d135876b035ad0bcc
 DIST linux-4.10.tar.xz 94231404 SHA256 3c95d9f049bd085e5c346d2c77f063b8425f191460fcd3ae9fe7e94e0477dc4b SHA512 c3690125a8402df638095bd98a613fcf1a257b81de7611c84711d315cd11e2634ab4636302b3742aedf1e3ba9ce0fea53fe8c7d48e37865d8ee5db3565220d90 WHIRLPOOL 86d021bae2dbfc4ef80c22d9e886bed4fbd9476473a2851d7beaf8ed0c7f7fbc1fa0da230eb9e763eb231b7c164c17b2a73fd336ab233543f57be280d6173738
 DIST linux-4.11.tar.xz 95447768 SHA256 b67ecafd0a42b3383bf4d82f0850cbff92a7e72a215a6d02f42ddbafcf42a7d6 SHA512 6610eed97ffb7207c71771198c36179b8244ace7222bebb109507720e26c5f17d918079a56d5febdd8605844d67fb2df0ebe910fa2f2f53690daf6e2a8ad09c3 WHIRLPOOL f577b7c5c209cb8dfef2f1d56d77314fbd53323743a34b900e2559ab0049b7c2d6262bda136dd3d005bc0527788106e0484e46558448a8720dac389a969e5886
 DIST linux-4.13.tar.xz 100579888 SHA256 2db3d6066c3ad93eb25b973a3d2951e022a7e975ee2fa7cbe5bddf84d9a49a2c SHA512 a557c2f0303ae618910b7106ff63d9978afddf470f03cb72aa748213e099a0ecd5f3119aea6cbd7b61df30ca6ef3ec57044d524b7babbaabddf8b08b8bafa7d2 WHIRLPOOL d3d332e02cd3c5056c76c28cf1f81504c6f7b8f2caed7238e7dd7866747fb03154b88d8d7aec4d0eddf5760624bc7d6c5485fb52a3e32d098a2742eba96c0d05
diff --git a/sys-kernel/pf-sources/files/2100_proc-mem-handling-fix.patch b/sys-kernel/pf-sources/files/2100_proc-mem-handling-fix.patch
deleted file mode 100644
index c32934daf899..000000000000
--- a/sys-kernel/pf-sources/files/2100_proc-mem-handling-fix.patch
+++ /dev/null
@@ -1,270 +0,0 @@
-From e268337dfe26dfc7efd422a804dbb27977a3cccc Mon Sep 17 00:00:00 2001
-From: Linus Torvalds <torvalds@linux-foundation.org>
-Date: Tue, 17 Jan 2012 15:21:19 -0800
-Subject: proc: clean up and fix /proc/<pid>/mem handling
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-From: Linus Torvalds <torvalds@linux-foundation.org>
-
-commit e268337dfe26dfc7efd422a804dbb27977a3cccc upstream.
-
-Jüri Aedla reported that the /proc/<pid>/mem handling really isn't very
-robust, and it also doesn't match the permission checking of any of the
-other related files.
-
-This changes it to do the permission checks at open time, and instead of
-tracking the process, it tracks the VM at the time of the open.  That
-simplifies the code a lot, but does mean that if you hold the file
-descriptor open over an execve(), you'll continue to read from the _old_
-VM.
-
-That is different from our previous behavior, but much simpler.  If
-somebody actually finds a load where this matters, we'll need to revert
-this commit.
-
-I suspect that nobody will ever notice - because the process mapping
-addresses will also have changed as part of the execve.  So you cannot
-actually usefully access the fd across a VM change simply because all
-the offsets for IO would have changed too.
-
-Reported-by: Jüri Aedla <asd@ut.ee>
-Cc: Al Viro <viro@zeniv.linux.org.uk>
-Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-
----
- fs/proc/base.c |  145 +++++++++++++++------------------------------------------
- 1 file changed, 39 insertions(+), 106 deletions(-)
-
---- a/fs/proc/base.c
-+++ b/fs/proc/base.c
-@@ -194,65 +194,7 @@ static int proc_root_link(struct inode *
- 	return result;
- }
- 
--static struct mm_struct *__check_mem_permission(struct task_struct *task)
--{
--	struct mm_struct *mm;
--
--	mm = get_task_mm(task);
--	if (!mm)
--		return ERR_PTR(-EINVAL);
--
--	/*
--	 * A task can always look at itself, in case it chooses
--	 * to use system calls instead of load instructions.
--	 */
--	if (task == current)
--		return mm;
--
--	/*
--	 * If current is actively ptrace'ing, and would also be
--	 * permitted to freshly attach with ptrace now, permit it.
--	 */
--	if (task_is_stopped_or_traced(task)) {
--		int match;
--		rcu_read_lock();
--		match = (ptrace_parent(task) == current);
--		rcu_read_unlock();
--		if (match && ptrace_may_access(task, PTRACE_MODE_ATTACH))
--			return mm;
--	}
--
--	/*
--	 * No one else is allowed.
--	 */
--	mmput(mm);
--	return ERR_PTR(-EPERM);
--}
--
--/*
-- * If current may access user memory in @task return a reference to the
-- * corresponding mm, otherwise ERR_PTR.
-- */
--static struct mm_struct *check_mem_permission(struct task_struct *task)
--{
--	struct mm_struct *mm;
--	int err;
--
--	/*
--	 * Avoid racing if task exec's as we might get a new mm but validate
--	 * against old credentials.
--	 */
--	err = mutex_lock_killable(&task->signal->cred_guard_mutex);
--	if (err)
--		return ERR_PTR(err);
--
--	mm = __check_mem_permission(task);
--	mutex_unlock(&task->signal->cred_guard_mutex);
--
--	return mm;
--}
--
--struct mm_struct *mm_for_maps(struct task_struct *task)
-+static struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
- {
- 	struct mm_struct *mm;
- 	int err;
-@@ -263,7 +205,7 @@ struct mm_struct *mm_for_maps(struct tas
- 
- 	mm = get_task_mm(task);
- 	if (mm && mm != current->mm &&
--			!ptrace_may_access(task, PTRACE_MODE_READ)) {
-+			!ptrace_may_access(task, mode)) {
- 		mmput(mm);
- 		mm = ERR_PTR(-EACCES);
- 	}
-@@ -272,6 +214,11 @@ struct mm_struct *mm_for_maps(struct tas
- 	return mm;
- }
- 
-+struct mm_struct *mm_for_maps(struct task_struct *task)
-+{
-+	return mm_access(task, PTRACE_MODE_READ);
-+}
-+
- static int proc_pid_cmdline(struct task_struct *task, char * buffer)
- {
- 	int res = 0;
-@@ -816,38 +763,39 @@ static const struct file_operations proc
- 
- static int mem_open(struct inode* inode, struct file* file)
- {
--	file->private_data = (void*)((long)current->self_exec_id);
-+	struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode);
-+	struct mm_struct *mm;
-+
-+	if (!task)
-+		return -ESRCH;
-+
-+	mm = mm_access(task, PTRACE_MODE_ATTACH);
-+	put_task_struct(task);
-+
-+	if (IS_ERR(mm))
-+		return PTR_ERR(mm);
-+
- 	/* OK to pass negative loff_t, we can catch out-of-range */
- 	file->f_mode |= FMODE_UNSIGNED_OFFSET;
-+	file->private_data = mm;
-+
- 	return 0;
- }
- 
- static ssize_t mem_read(struct file * file, char __user * buf,
- 			size_t count, loff_t *ppos)
- {
--	struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode);
-+	int ret;
- 	char *page;
- 	unsigned long src = *ppos;
--	int ret = -ESRCH;
--	struct mm_struct *mm;
-+	struct mm_struct *mm = file->private_data;
- 
--	if (!task)
--		goto out_no_task;
-+	if (!mm)
-+		return 0;
- 
--	ret = -ENOMEM;
- 	page = (char *)__get_free_page(GFP_TEMPORARY);
- 	if (!page)
--		goto out;
--
--	mm = check_mem_permission(task);
--	ret = PTR_ERR(mm);
--	if (IS_ERR(mm))
--		goto out_free;
--
--	ret = -EIO;
-- 
--	if (file->private_data != (void*)((long)current->self_exec_id))
--		goto out_put;
-+		return -ENOMEM;
- 
- 	ret = 0;
-  
-@@ -874,13 +822,7 @@ static ssize_t mem_read(struct file * fi
- 	}
- 	*ppos = src;
- 
--out_put:
--	mmput(mm);
--out_free:
- 	free_page((unsigned long) page);
--out:
--	put_task_struct(task);
--out_no_task:
- 	return ret;
- }
- 
-@@ -889,27 +831,15 @@ static ssize_t mem_write(struct file * f
- {
- 	int copied;
- 	char *page;
--	struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode);
- 	unsigned long dst = *ppos;
--	struct mm_struct *mm;
-+	struct mm_struct *mm = file->private_data;
- 
--	copied = -ESRCH;
--	if (!task)
--		goto out_no_task;
-+	if (!mm)
-+		return 0;
- 
--	copied = -ENOMEM;
- 	page = (char *)__get_free_page(GFP_TEMPORARY);
- 	if (!page)
--		goto out_task;
--
--	mm = check_mem_permission(task);
--	copied = PTR_ERR(mm);
--	if (IS_ERR(mm))
--		goto out_free;
--
--	copied = -EIO;
--	if (file->private_data != (void *)((long)current->self_exec_id))
--		goto out_mm;
-+		return -ENOMEM;
- 
- 	copied = 0;
- 	while (count > 0) {
-@@ -933,13 +863,7 @@ static ssize_t mem_write(struct file * f
- 	}
- 	*ppos = dst;
- 
--out_mm:
--	mmput(mm);
--out_free:
- 	free_page((unsigned long) page);
--out_task:
--	put_task_struct(task);
--out_no_task:
- 	return copied;
- }
- 
-@@ -959,11 +883,20 @@ loff_t mem_lseek(struct file *file, loff
- 	return file->f_pos;
- }
- 
-+static int mem_release(struct inode *inode, struct file *file)
-+{
-+	struct mm_struct *mm = file->private_data;
-+
-+	mmput(mm);
-+	return 0;
-+}
-+
- static const struct file_operations proc_mem_operations = {
- 	.llseek		= mem_lseek,
- 	.read		= mem_read,
- 	.write		= mem_write,
- 	.open		= mem_open,
-+	.release	= mem_release,
- };
- 
- static ssize_t environ_read(struct file *file, char __user *buf,
-