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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2009-01-14 14:13:59 +0100 |
|---|---|---|
| committer | Heiko Carstens <heiko.carstens@de.ibm.com> | 2009-01-14 14:15:16 +0100 |
| commit | 1a94bc34768e463a93cb3751819709ab0ea80a01 (patch) | |
| tree | a27753a61c2aa02d31b2d1f8efe9f00e68770856 /arch/Kconfig | |
| parent | f627a741d24f12955fa2d9f8831c3b12860635bd (diff) | |
| download | lwn-1a94bc34768e463a93cb3751819709ab0ea80a01.tar.gz lwn-1a94bc34768e463a93cb3751819709ab0ea80a01.zip | |
[CVE-2009-0029] System call wrapper infrastructure
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
By selecting HAVE_SYSCALL_WRAPPERS architectures can activate
system call wrappers in order to sign extend system call arguments.
All architectures where the ABI defines that the caller of a function
has to perform sign extension probably need this.
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'arch/Kconfig')
| -rw-r--r-- | arch/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 2e13aa261929..550dab22daa1 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -62,6 +62,9 @@ config HAVE_EFFICIENT_UNALIGNED_ACCESS See Documentation/unaligned-memory-access.txt for more information on the topic of unaligned memory accesses. +config HAVE_SYSCALL_WRAPPERS + bool + config KRETPROBES def_bool y depends on KPROBES && HAVE_KRETPROBES |