Update to 3.16
svn path=/dists/trunk/linux/; revision=21682
This commit is contained in:
parent
15111703ff
commit
31d8270081
|
@ -1,4 +1,6 @@
|
|||
linux (3.16~rc6-1~exp2) UNRELEASED; urgency=medium
|
||||
linux (3.16-1~exp1) UNRELEASED; urgency=medium
|
||||
|
||||
* New upstream release: http://kernelnewbies.org/Linux_3.16
|
||||
|
||||
[ Aurelien Jarno ]
|
||||
* [x86] vfio: Enable VFIO_PCI_VGA.
|
||||
|
|
|
@ -1,56 +0,0 @@
|
|||
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
||||
Date: Mon, 23 Jun 2014 15:29:40 +0200
|
||||
Subject: s390/ptrace: fix PSW mask check
|
||||
Origin: https://git.kernel.org/linus/dab6cf55f81a6e16b8147aed9a843e1691dcd318
|
||||
|
||||
The PSW mask check of the PTRACE_POKEUSR_AREA command is incorrect.
|
||||
The PSW_MASK_USER define contains the PSW_MASK_ASC bits, the ptrace
|
||||
interface accepts all combinations for the address-space-control
|
||||
bits. To protect the kernel space the PSW mask check in ptrace needs
|
||||
to reject the address-space-control bit combination for home space.
|
||||
|
||||
Fixes CVE-2014-3534
|
||||
|
||||
Cc: stable@vger.kernel.org
|
||||
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
||||
---
|
||||
arch/s390/kernel/ptrace.c | 12 ++++++++++--
|
||||
1 file changed, 10 insertions(+), 2 deletions(-)
|
||||
|
||||
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
|
||||
index 2d716734..5dc7ad9 100644
|
||||
--- a/arch/s390/kernel/ptrace.c
|
||||
+++ b/arch/s390/kernel/ptrace.c
|
||||
@@ -334,9 +334,14 @@ static int __poke_user(struct task_struct *child, addr_t addr, addr_t data)
|
||||
unsigned long mask = PSW_MASK_USER;
|
||||
|
||||
mask |= is_ri_task(child) ? PSW_MASK_RI : 0;
|
||||
- if ((data & ~mask) != PSW_USER_BITS)
|
||||
+ if ((data ^ PSW_USER_BITS) & ~mask)
|
||||
+ /* Invalid psw mask. */
|
||||
+ return -EINVAL;
|
||||
+ if ((data & PSW_MASK_ASC) == PSW_ASC_HOME)
|
||||
+ /* Invalid address-space-control bits */
|
||||
return -EINVAL;
|
||||
if ((data & PSW_MASK_EA) && !(data & PSW_MASK_BA))
|
||||
+ /* Invalid addressing mode bits */
|
||||
return -EINVAL;
|
||||
}
|
||||
*(addr_t *)((addr_t) &task_pt_regs(child)->psw + addr) = data;
|
||||
@@ -672,9 +677,12 @@ static int __poke_user_compat(struct task_struct *child,
|
||||
|
||||
mask |= is_ri_task(child) ? PSW32_MASK_RI : 0;
|
||||
/* Build a 64 bit psw mask from 31 bit mask. */
|
||||
- if ((tmp & ~mask) != PSW32_USER_BITS)
|
||||
+ if ((tmp ^ PSW32_USER_BITS) & ~mask)
|
||||
/* Invalid psw mask. */
|
||||
return -EINVAL;
|
||||
+ if ((data & PSW32_MASK_ASC) == PSW32_ASC_HOME)
|
||||
+ /* Invalid address-space-control bits */
|
||||
+ return -EINVAL;
|
||||
regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
|
||||
(regs->psw.mask & PSW_MASK_BA) |
|
||||
(__u64)(tmp & mask) << 32;
|
||||
--
|
||||
2.0.0
|
||||
|
|
@ -60,7 +60,6 @@ bugfix/mips/MIPS-math-emu-cp1emu-Fix-typo-when-returning-to-regi.patch
|
|||
bugfix/all/misc-bmp085-Enable-building-as-a-module.patch
|
||||
bugfix/all/kbuild-use-nostdinc-in-compile-tests.patch
|
||||
bugfix/all/disable-some-marvell-phys.patch
|
||||
bugfix/s390/s390-ptrace-fix-PSW-mask-check.patch
|
||||
|
||||
# Miscellaneous features
|
||||
features/all/x86-memtest-WARN-if-bad-RAM-found.patch
|
||||
|
|
Loading…
Reference in New Issue