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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-06-23 13:29:40 (GMT) |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-07-16 08:48:11 (GMT) |
| commit | dab6cf55f81a6e16b8147aed9a843e1691dcd318 (patch) | |
| tree | f1dbbf112e83da1115b11199f22a7f6730547913 /drivers/s390 | |
| parent | 8fb878c5f12bf7fd6099d466139bd4564418e583 (diff) | |
| download | linux-dab6cf55f81a6e16b8147aed9a843e1691dcd318.tar.xz | |
s390/ptrace: fix PSW mask check
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>
Diffstat (limited to 'drivers/s390')
0 files changed, 0 insertions, 0 deletions