Adding SELinux fixes for the AF_UNIX patch; bug #72317. Also fixing security bugs #72452 (Adding VMA Patch) and #73000.

6 files changed, 302 insertions, 2 deletions

diff --git a/sys-kernel/uclinux-sources/ChangeLog b/sys-kernel/uclinux-sources/ChangeLog
index 03914ad9c75f..7d5faaed24c2 100644
--- a/sys-kernel/uclinux-sources/ChangeLog
+++ b/sys-kernel/uclinux-sources/ChangeLog
@@ -1,6 +1,16 @@
 # ChangeLog for sys-kernel/uclinux-sources
 # Copyright 2000-2004 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/sys-kernel/uclinux-sources/ChangeLog,v 1.24 2004/11/28 11:56:06 plasmaroo Exp $
+# $Header: /var/cvsroot/gentoo-x86/sys-kernel/uclinux-sources/ChangeLog,v 1.25 2004/12/19 19:16:12 plasmaroo Exp $
+
+*uclinux-sources-2.6.7_p0-r11 (19 Dec 2004)
+
+  19 Dec 2004; <plasmaroo@gentoo.org> -uclinux-sources-2.6.7_p0-r10.ebuild,
+  +uclinux-sources-2.6.7_p0-r11.ebuild,
+  +files/uclinux-sources-2.6.AF_UNIX.SELinux.patch,
+  +files/uclinux-sources-2.6.CAN-2004-1151.patch,
+  +files/uclinux-sources-2.6.vma.patch:
+  Adding SELinux fixes for the AF_UNIX patch; bug #72317. Also fixing security
+  bugs #72452 (Adding VMA Patch) and #73000.
 
   28 Nov 2004; <plasmaroo@gentoo.org> uclinux-sources-2.6.7_p0-r10.ebuild,
   +files/uclinux-sources-2.6.AF_UNIX.patch:
diff --git a/sys-kernel/uclinux-sources/files/digest-uclinux-sources-2.6.7_p0-r10 b/sys-kernel/uclinux-sources/files/digest-uclinux-sources-2.6.7_p0-r11
index 5e42e7666435..5e42e7666435 100644
--- a/sys-kernel/uclinux-sources/files/digest-uclinux-sources-2.6.7_p0-r10
+++ b/sys-kernel/uclinux-sources/files/digest-uclinux-sources-2.6.7_p0-r11
diff --git a/sys-kernel/uclinux-sources/files/uclinux-sources-2.6.AF_UNIX.SELinux.patch b/sys-kernel/uclinux-sources/files/uclinux-sources-2.6.AF_UNIX.SELinux.patch
new file mode 100644
index 000000000000..dbb8b2329a28
--- /dev/null
+++ b/sys-kernel/uclinux-sources/files/uclinux-sources-2.6.AF_UNIX.SELinux.patch
@@ -0,0 +1,61 @@
+--- a/net/unix/af_unix.c	2004-10-18 22:54:37.000000000 +0100
++++ b/net/unix/af_unix.c	2004-12-19 18:33:12.000000000 +0000
+@@ -477,6 +477,8 @@
+ 			      struct msghdr *, size_t, int);
+ static int unix_dgram_connect(struct socket *, struct sockaddr *,
+ 			      int, int);
++static int unix_seqpacket_sendmsg(struct kiocb *, struct socket *,
++				  struct msghdr *, size_t);
+ 
+ static struct proto_ops unix_stream_ops = {
+ 	.family =	PF_UNIX,
+@@ -535,7 +537,7 @@
+ 	.shutdown =	unix_shutdown,
+ 	.setsockopt =	sock_no_setsockopt,
+ 	.getsockopt =	sock_no_getsockopt,
+-	.sendmsg =	unix_dgram_sendmsg,
++	.sendmsg =	unix_seqpacket_sendmsg,
+ 	.recvmsg =	unix_dgram_recvmsg,
+ 	.mmap =		sock_no_mmap,
+ 	.sendpage =	sock_no_sendpage,
+@@ -1365,9 +1367,11 @@
+ 	if (other->sk_shutdown & RCV_SHUTDOWN)
+ 		goto out_unlock;
+ 
+-	err = security_unix_may_send(sk->sk_socket, other->sk_socket);
+-	if (err)
+-		goto out_unlock;
++	if (sk->sk_type != SOCK_SEQPACKET) {
++		err = security_unix_may_send(sk->sk_socket, other->sk_socket);
++		if (err)
++			goto out_unlock;
++	}
+ 
+ 	if (unix_peer(other) != sk &&
+ 	    (skb_queue_len(&other->sk_receive_queue) >
+@@ -1517,6 +1521,25 @@
+ 	return sent ? : err;
+ }
+ 
++static int unix_seqpacket_sendmsg(struct kiocb *kiocb, struct socket *sock,
++				  struct msghdr *msg, size_t len)
++{
++	int err;
++	struct sock *sk = sock->sk;
++	
++	err = sock_error(sk);
++	if (err)
++		return err;
++
++	if (sk->sk_state != TCP_ESTABLISHED)
++		return -ENOTCONN;
++
++	if (msg->msg_namelen)
++		msg->msg_namelen = 0;
++
++	return unix_dgram_sendmsg(kiocb, sock, msg, len);
++}
++                                                                                            
+ static void unix_copy_addr(struct msghdr *msg, struct sock *sk)
+ {
+ 	struct unix_sock *u = unix_sk(sk);
diff --git a/sys-kernel/uclinux-sources/files/uclinux-sources-2.6.CAN-2004-1151.patch b/sys-kernel/uclinux-sources/files/uclinux-sources-2.6.CAN-2004-1151.patch
new file mode 100644
index 000000000000..fc4289e4f444
--- /dev/null
+++ b/sys-kernel/uclinux-sources/files/uclinux-sources-2.6.CAN-2004-1151.patch
@@ -0,0 +1,35 @@
+--- 1.74/arch/x86_64/ia32/sys_ia32.c	2004-12-19 10:58:02 -08:00
++++ 1.75/arch/x86_64/ia32/sys_ia32.c	2004-12-19 10:58:02 -08:00
+@@ -525,11 +525,12 @@
+ int sys32_ni_syscall(int call)
+ { 
+ 	struct task_struct *me = current;
+-	static char lastcomm[8];
+-	if (strcmp(lastcomm, me->comm)) {
+-	printk(KERN_INFO "IA32 syscall %d from %s not implemented\n", call,
+-	       current->comm);
+-		strcpy(lastcomm, me->comm); 
++	static char lastcomm[sizeof(me->comm)];
++
++	if (strncmp(lastcomm, me->comm, sizeof(lastcomm))) {
++		printk(KERN_INFO "IA32 syscall %d from %s not implemented\n",
++		       call, me->comm);
++		strncpy(lastcomm, me->comm, sizeof(lastcomm));
+ 	} 
+ 	return -ENOSYS;	       
+ } 
+@@ -1125,11 +1126,11 @@
+ long sys32_vm86_warning(void)
+ { 
+ 	struct task_struct *me = current;
+-	static char lastcomm[8];
+-	if (strcmp(lastcomm, me->comm)) {
++	static char lastcomm[sizeof(me->comm)];
++	if (strncmp(lastcomm, me->comm, sizeof(lastcomm))) {
+ 		printk(KERN_INFO "%s: vm86 mode not supported on 64 bit kernel\n",
+ 		       me->comm);
+-		strcpy(lastcomm, me->comm); 
++		strncpy(lastcomm, me->comm, sizeof(lastcomm));
+ 	} 
+ 	return -ENOSYS;
+ } 
diff --git a/sys-kernel/uclinux-sources/files/uclinux-sources-2.6.vma.patch b/sys-kernel/uclinux-sources/files/uclinux-sources-2.6.vma.patch
new file mode 100644
index 000000000000..c700a9c71832
--- /dev/null
+++ b/sys-kernel/uclinux-sources/files/uclinux-sources-2.6.vma.patch
@@ -0,0 +1,191 @@
+diff -urNp -X /usr/src/dontdiff linux-2.6.7-gentoo-r19/arch/ia64/ia32/binfmt_elf32.c linux-dsd/arch/ia64/ia32/binfmt_elf32.c
+--- linux-2.6.7-gentoo-r19/arch/ia64/ia32/binfmt_elf32.c	2004-12-02 23:32:15.424906248 +0000
++++ linux-dsd/arch/ia64/ia32/binfmt_elf32.c	2004-12-02 23:35:26.813810712 +0000
+@@ -82,7 +82,11 @@ ia64_elf32_init (struct pt_regs *regs)
+ 		vma->vm_ops = &ia32_shared_page_vm_ops;
+ 		down_write(&current->mm->mmap_sem);
+ 		{
+-			insert_vm_struct(current->mm, vma);
++			if (insert_vm_struct(current->mm, vma)) {
++				kmem_cache_free(vm_area_cachep, vma);
++				up_write(&current->mm->mmap_sem);
++				return;
++			}
+ 		}
+ 		up_write(&current->mm->mmap_sem);
+ 	}
+@@ -101,7 +105,11 @@ ia64_elf32_init (struct pt_regs *regs)
+ 		vma->vm_flags = VM_READ|VM_WRITE|VM_MAYREAD|VM_MAYWRITE;
+ 		down_write(&current->mm->mmap_sem);
+ 		{
+-			insert_vm_struct(current->mm, vma);
++			if (insert_vm_struct(current->mm, vma)) {
++				kmem_cache_free(vm_area_cachep, vma);
++				up_write(&current->mm->mmap_sem);
++				return;
++			}
+ 		}
+ 		up_write(&current->mm->mmap_sem);
+ 	}
+@@ -149,7 +157,7 @@ ia32_setup_arg_pages (struct linux_binpr
+ 	unsigned long stack_base;
+ 	struct vm_area_struct *mpnt;
+ 	struct mm_struct *mm = current->mm;
+-	int i;
++	int i, ret;
+ 
+ 	stack_base = IA32_STACK_TOP - MAX_ARG_PAGES*PAGE_SIZE;
+ 	mm->arg_start = bprm->p + stack_base;
+@@ -182,8 +190,12 @@ ia32_setup_arg_pages (struct linux_binpr
+ 		else
+ 			mpnt->vm_flags = VM_STACK_FLAGS;
+ 		mpnt->vm_page_prot = (mpnt->vm_flags & VM_EXEC)?
+-					PAGE_COPY_EXEC: PAGE_COPY;
+-		insert_vm_struct(current->mm, mpnt);
++			PAGE_COPY_EXEC: PAGE_COPY;
++		if ((ret = insert_vm_struct(current->mm, mpnt))) {
++			up_write(&current->mm->mmap_sem);
++			kmem_cache_free(vm_area_cachep, mpnt);
++			return ret;
++		}
+ 		current->mm->total_vm = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT;
+ 	}
+ 
+diff -urNp -X /usr/src/dontdiff linux-2.6.7-gentoo-r19/arch/ia64/mm/init.c linux-dsd/arch/ia64/mm/init.c
+--- linux-2.6.7-gentoo-r19/arch/ia64/mm/init.c	2004-12-02 23:32:15.425906096 +0000
++++ linux-dsd/arch/ia64/mm/init.c	2004-12-02 23:36:46.937630040 +0000
+@@ -129,7 +129,13 @@ ia64_init_addr_space (void)
+ 		vma->vm_end = vma->vm_start + PAGE_SIZE;
+ 		vma->vm_page_prot = protection_map[VM_DATA_DEFAULT_FLAGS & 0x7];
+ 		vma->vm_flags = VM_READ|VM_WRITE|VM_MAYREAD|VM_MAYWRITE|VM_GROWSUP;
+-		insert_vm_struct(current->mm, vma);
++		down_write(&current->mm->mmap_sem);
++		if (insert_vm_struct(current->mm, vma)) {
++			up_write(&current->mm->mmap_sem);
++			kmem_cache_free(vm_area_cachep, vma);
++			return;
++		}
++		up_write(&current->mm->mmap_sem);
+ 	}
+ 
+ 	/* map NaT-page at address zero to speed up speculative dereferencing of NULL: */
+@@ -141,7 +147,13 @@ ia64_init_addr_space (void)
+ 			vma->vm_end = PAGE_SIZE;
+ 			vma->vm_page_prot = __pgprot(pgprot_val(PAGE_READONLY) | _PAGE_MA_NAT);
+ 			vma->vm_flags = VM_READ | VM_MAYREAD | VM_IO | VM_RESERVED;
+-			insert_vm_struct(current->mm, vma);
++			down_write(&current->mm->mmap_sem);
++			if (insert_vm_struct(current->mm, vma)) {
++				up_write(&current->mm->mmap_sem);
++				kmem_cache_free(vm_area_cachep, vma);
++				return;
++			}
++			up_write(&current->mm->mmap_sem);
+ 		}
+ 	}
+ }
+diff -urNp -X /usr/src/dontdiff linux-2.6.7-gentoo-r19/arch/s390/kernel/compat_exec.c linux-dsd/arch/s390/kernel/compat_exec.c
+--- linux-2.6.7-gentoo-r19/arch/s390/kernel/compat_exec.c	2004-12-02 23:32:15.426905944 +0000
++++ linux-dsd/arch/s390/kernel/compat_exec.c	2004-12-02 23:39:18.846536376 +0000
+@@ -39,7 +39,7 @@ int setup_arg_pages32(struct linux_binpr
+ 	unsigned long stack_base;
+ 	struct vm_area_struct *mpnt;
+ 	struct mm_struct *mm = current->mm;
+-	int i;
++	int i, ret;
+ 
+ 	stack_base = STACK_TOP - MAX_ARG_PAGES*PAGE_SIZE;
+ 	mm->arg_start = bprm->p + stack_base;
+@@ -68,7 +68,11 @@ int setup_arg_pages32(struct linux_binpr
+ 		/* executable stack setting would be applied here */
+ 		mpnt->vm_page_prot = PAGE_COPY;
+ 		mpnt->vm_flags = VM_STACK_FLAGS;
+-		insert_vm_struct(mm, mpnt);
++		if ((ret = insert_vm_struct(mm, mpnt))) {
++			up_write(&mm->mmap_sem);
++			kmem_cache_free(vm_area_cachep, mpnt);
++			return ret;
++		}
+ 		mm->total_vm = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT;
+ 	} 
+ 
+diff -urNp -X /usr/src/dontdiff linux-2.6.7-gentoo-r19/arch/x86_64/ia32/ia32_binfmt.c linux-dsd/arch/x86_64/ia32/ia32_binfmt.c
+--- linux-2.6.7-gentoo-r19/arch/x86_64/ia32/ia32_binfmt.c	2004-12-02 23:32:15.427905792 +0000
++++ linux-dsd/arch/x86_64/ia32/ia32_binfmt.c	2004-12-02 23:41:30.438531352 +0000
+@@ -330,7 +330,7 @@ int setup_arg_pages(struct linux_binprm 
+ 	unsigned long stack_base;
+ 	struct vm_area_struct *mpnt;
+ 	struct mm_struct *mm = current->mm;
+-	int i;
++	int i, ret;
+ 
+ 	stack_base = IA32_STACK_TOP - MAX_ARG_PAGES * PAGE_SIZE;
+ 	mm->arg_start = bprm->p + stack_base;
+@@ -364,7 +364,11 @@ int setup_arg_pages(struct linux_binprm 
+ 			mpnt->vm_flags = vm_stack_flags32;
+  		mpnt->vm_page_prot = (mpnt->vm_flags & VM_EXEC) ? 
+  			PAGE_COPY_EXEC : PAGE_COPY;
+-		insert_vm_struct(mm, mpnt);
++		if ((ret = insert_vm_struct(mm, mpnt))) {
++			up_write(&mm->mmap_sem);
++			kmem_cache_free(vm_area_cachep, mpnt);
++			return ret;
++		}
+ 		mm->total_vm = (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT;
+ 	} 
+ 
+diff -urNp -X /usr/src/dontdiff linux-2.6.7-gentoo-r19/fs/exec.c linux-dsd/fs/exec.c
+--- linux-2.6.7-gentoo-r19/fs/exec.c	2004-12-02 23:32:15.428905640 +0000
++++ linux-dsd/fs/exec.c	2004-12-02 23:33:06.941074600 +0000
+@@ -342,7 +342,7 @@ int setup_arg_pages(struct linux_binprm 
+ 	unsigned long stack_base;
+ 	struct vm_area_struct *mpnt;
+ 	struct mm_struct *mm = current->mm;
+-	int i;
++	int i, ret;
+ 	long arg_size;
+ 
+ #ifdef CONFIG_STACK_GROWSUP
+@@ -413,7 +413,6 @@ int setup_arg_pages(struct linux_binprm 
+ 
+ 	down_write(&mm->mmap_sem);
+ 	{
+-		struct vm_area_struct *vma;
+ 		mpnt->vm_mm = mm;
+ #ifdef CONFIG_STACK_GROWSUP
+ 		mpnt->vm_start = stack_base;
+diff -urNp -X /usr/src/dontdiff linux-2.6.7-gentoo-r19/include/linux/mm.h linux-dsd/include/linux/mm.h
+--- linux-2.6.7-gentoo-r19/include/linux/mm.h	2004-12-02 23:32:15.430905336 +0000
++++ linux-dsd/include/linux/mm.h	2004-12-02 23:33:06.942074448 +0000
+@@ -623,7 +623,7 @@ extern struct vm_area_struct *vma_merge(
+ extern struct anon_vma *find_mergeable_anon_vma(struct vm_area_struct *);
+ extern int split_vma(struct mm_struct *,
+ 	struct vm_area_struct *, unsigned long addr, int new_below);
+-extern void insert_vm_struct(struct mm_struct *, struct vm_area_struct *);
++extern int insert_vm_struct(struct mm_struct *, struct vm_area_struct *);
+ extern void __vma_link_rb(struct mm_struct *, struct vm_area_struct *,
+ 	struct rb_node **, struct rb_node *);
+ extern struct vm_area_struct *copy_vma(struct vm_area_struct **,
+diff -urNp -X /usr/src/dontdiff linux-2.6.7-gentoo-r19/mm/mmap.c linux-dsd/mm/mmap.c
+--- linux-2.6.7-gentoo-r19/mm/mmap.c	2004-12-02 23:32:15.432905032 +0000
++++ linux-dsd/mm/mmap.c	2004-12-02 23:33:06.944074144 +0000
+@@ -1722,7 +1722,7 @@ void exit_mmap(struct mm_struct *mm)
+  * and into the inode's i_mmap tree.  If vm_file is non-NULL
+  * then i_mmap_lock is taken here.
+  */
+-void insert_vm_struct(struct mm_struct * mm, struct vm_area_struct * vma)
++int insert_vm_struct(struct mm_struct * mm, struct vm_area_struct * vma)
+ {
+ 	struct vm_area_struct * __vma, * prev;
+ 	struct rb_node ** rb_link, * rb_parent;
+@@ -1745,8 +1745,9 @@ void insert_vm_struct(struct mm_struct *
+ 	}
+ 	__vma = find_vma_prepare(mm,vma->vm_start,&prev,&rb_link,&rb_parent);
+ 	if (__vma && __vma->vm_start < vma->vm_end)
+-		BUG();
++		return -ENOMEM;
+ 	vma_link(mm, vma, prev, rb_link, rb_parent);
++	return 0;
+ }
+ 
+ /*
diff --git a/sys-kernel/uclinux-sources/uclinux-sources-2.6.7_p0-r10.ebuild b/sys-kernel/uclinux-sources/uclinux-sources-2.6.7_p0-r11.ebuild
index 1e79e9b2bcb6..7ab018f57b2f 100644
--- a/sys-kernel/uclinux-sources/uclinux-sources-2.6.7_p0-r10.ebuild
+++ b/sys-kernel/uclinux-sources/uclinux-sources-2.6.7_p0-r11.ebuild
@@ -1,6 +1,6 @@
 # Copyright 1999-2004 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/sys-kernel/uclinux-sources/uclinux-sources-2.6.7_p0-r10.ebuild,v 1.2 2004/11/28 11:56:06 plasmaroo Exp $
+# $Header: /var/cvsroot/gentoo-x86/sys-kernel/uclinux-sources/uclinux-sources-2.6.7_p0-r11.ebuild,v 1.1 2004/12/19 19:16:12 plasmaroo Exp $
 
 IUSE=""
 
@@ -53,7 +53,10 @@ src_unpack() {
 	epatch ${FILESDIR}/${PN}-2.6.binfmt_elf.patch || die "Failed to apply binfmt_elf patch!"
 	epatch ${FILESDIR}/${PN}-2.6.smbfs.patch || die "Failed to apply SMBFS patch!"
 	epatch ${FILESDIR}/${PN}-2.6.AF_UNIX.patch || die "Failed to apply the AF_UNIX patch!"
+	epatch ${FILESDIR}/${PN}-2.6.AF_UNIX.SELinux.patch || die "Failed to apply the AF_UNIX SELinux-fix patch!"
 	epatch ${FILESDIR}/${PN}-2.6.binfmt_a.out.patch || die "Failed to apply the a.out patch!"
+	epatch ${FILESDIR}/${PN}-2.6.CAN-2004-1151.patch || die "Failed to apply the CAN-2004-1151 patch!"
+	epatch ${FILESDIR}/${PN}-2.6.vma.patch || die "Failed to apply the VMA patch!"
 
 	set MY_ARCH=${ARCH}
 	unset ARCH