+++ /dev/null
-From dab6cf55f81a6e16b8147aed9a843e1691dcd318 Mon Sep 17 00:00:00 2001
-From: Martin Schwidefsky <schwidefsky@de.ibm.com>
-Date: Mon, 23 Jun 2014 15:29:40 +0200
-Subject: s390/ptrace: fix PSW mask check
-
-From: Martin Schwidefsky <schwidefsky@de.ibm.com>
-
-commit dab6cf55f81a6e16b8147aed9a843e1691dcd318 upstream.
-
-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
-
-Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
-[bwh: Backported to 3.2:
- - The PSW user-settable bitmasks are constant, never including PSW_MASK_RI
- - The kernel can run in either home or primary space, so instead of
- checking that the ASC bits are not equal to PSW_ASC_HOME, we have to
- check that they don't match psw_kernel_bits
- - For the same reason, the required values of non-user-settable bits
- are variables (psw_user_bits/psw32_user_bits) and remain so]
-Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- arch/s390/kernel/ptrace.c | 23 +++++++++++++++++------
- 1 file changed, 17 insertions(+), 6 deletions(-)
-
---- a/arch/s390/kernel/ptrace.c
-+++ b/arch/s390/kernel/ptrace.c
-@@ -313,11 +313,18 @@ static int __poke_user(struct task_struc
- /*
- * psw and gprs are stored on the stack
- */
-- if (addr == (addr_t) &dummy->regs.psw.mask &&
-- ((data & ~PSW_MASK_USER) != psw_user_bits ||
-- ((data & PSW_MASK_EA) && !(data & PSW_MASK_BA))))
-- /* Invalid psw mask. */
-- return -EINVAL;
-+ if (addr == (addr_t) &dummy->regs.psw.mask) {
-+ if ((data ^ psw_user_bits) & ~PSW_MASK_USER)
-+ /* Invalid psw mask. */
-+ return -EINVAL;
-+ if ((data & PSW_MASK_ASC) ==
-+ (psw_kernel_bits & PSW_MASK_ASC))
-+ /* 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;
-
- } else if (addr < (addr_t) (&dummy->regs.orig_gpr2)) {
-@@ -627,9 +634,13 @@ static int __poke_user_compat(struct tas
- */
- if (addr == (addr_t) &dummy32->regs.psw.mask) {
- /* Build a 64 bit psw mask from 31 bit mask. */
-- if ((tmp & ~PSW32_MASK_USER) != psw32_user_bits)
-+ if ((tmp ^ psw32_user_bits) & ~PSW32_MASK_USER)
- /* Invalid psw mask. */
- return -EINVAL;
-+ if ((data & PSW32_MASK_ASC) ==
-+ ((psw_kernel_bits & PSW_MASK_ASC) >> 32))
-+ /* Invalid address-space-control bits */
-+ return -EINVAL;
- regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
- (regs->psw.mask & PSW_MASK_BA) |
- (__u64)(tmp & PSW32_MASK_USER) << 32;
block-don-t-assume-last-put-of-shared-tags-is-for-the-host.patch
libata-support-the-ata-host-which-implements-a-queue-depth-less-than-32.patch
libata-introduce-ata_host-n_tags-to-avoid-oops-on-sas-controllers.patch
-s390-ptrace-fix-psw-mask-check.patch
ahci-add-support-for-the-promise-fasttrak-tx8660-sata-hba-ahci-mode.patch
blkcg-don-t-call-into-policy-draining-if-root_blkg-is-already-gone.patch
tracing-fix-wraparound-problems-in-uptime-trace-clock.patch
+++ /dev/null
-From dab6cf55f81a6e16b8147aed9a843e1691dcd318 Mon Sep 17 00:00:00 2001
-From: Martin Schwidefsky <schwidefsky@de.ibm.com>
-Date: Mon, 23 Jun 2014 15:29:40 +0200
-Subject: s390/ptrace: fix PSW mask check
-
-From: Martin Schwidefsky <schwidefsky@de.ibm.com>
-
-commit dab6cf55f81a6e16b8147aed9a843e1691dcd318 upstream.
-
-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
-
-Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
-[bwh: Backported to 3.2:
- - The PSW user-settable bitmasks are constant, never including PSW_MASK_RI
- - The kernel can run in either home or primary space, so instead of
- checking that the ASC bits are not equal to PSW_ASC_HOME, we have to
- check that they don't match psw_kernel_bits
- - For the same reason, the required values of non-user-settable bits
- are variables (psw_user_bits/psw32_user_bits) and remain so]
-Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
----
- arch/s390/kernel/ptrace.c | 23 +++++++++++++++++------
- 1 file changed, 17 insertions(+), 6 deletions(-)
-
---- a/arch/s390/kernel/ptrace.c
-+++ b/arch/s390/kernel/ptrace.c
-@@ -291,11 +291,18 @@ static int __poke_user(struct task_struc
- /*
- * psw and gprs are stored on the stack
- */
-- if (addr == (addr_t) &dummy->regs.psw.mask &&
-- ((data & ~PSW_MASK_USER) != psw_user_bits ||
-- ((data & PSW_MASK_EA) && !(data & PSW_MASK_BA))))
-- /* Invalid psw mask. */
-- return -EINVAL;
-+ if (addr == (addr_t) &dummy->regs.psw.mask) {
-+ if ((data ^ psw_user_bits) & ~PSW_MASK_USER)
-+ /* Invalid psw mask. */
-+ return -EINVAL;
-+ if ((data & PSW_MASK_ASC) ==
-+ (psw_kernel_bits & PSW_MASK_ASC))
-+ /* 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;
-
- } else if (addr < (addr_t) (&dummy->regs.orig_gpr2)) {
-@@ -595,9 +602,13 @@ static int __poke_user_compat(struct tas
- */
- if (addr == (addr_t) &dummy32->regs.psw.mask) {
- /* Build a 64 bit psw mask from 31 bit mask. */
-- if ((tmp & ~PSW32_MASK_USER) != psw32_user_bits)
-+ if ((tmp ^ psw32_user_bits) & ~PSW32_MASK_USER)
- /* Invalid psw mask. */
- return -EINVAL;
-+ if ((data & PSW32_MASK_ASC) ==
-+ ((psw_kernel_bits & PSW_MASK_ASC) >> 32))
-+ /* Invalid address-space-control bits */
-+ return -EINVAL;
- regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
- (regs->psw.mask & PSW_MASK_BA) |
- (__u64)(tmp & PSW32_MASK_USER) << 32;
block-don-t-assume-last-put-of-shared-tags-is-for-the-host.patch
libata-support-the-ata-host-which-implements-a-queue-depth-less-than-32.patch
libata-introduce-ata_host-n_tags-to-avoid-oops-on-sas-controllers.patch
-s390-ptrace-fix-psw-mask-check.patch
ahci-add-support-for-the-promise-fasttrak-tx8660-sata-hba-ahci-mode.patch
x86_32-entry-store-badsys-error-code-in-eax.patch
mm-hugetlb-fix-copy_hugetlb_page_range.patch