commit: e6d9668e119af44ae5bcd5f1197174531458afe3 From: Chris Metcalf <[email protected]> Date: Fri, 18 May 2012 13:33:24 -0400 Subject: tilegx: enable SYSCALL_WRAPPERS support
Some discussion with the glibc mailing lists revealed that this was necessary for 64-bit platforms with MIPS-like sign-extension rules for 32-bit values. The original symptom was that passing (uid_t)-1 to setreuid() was failing in programs linked -pthread because of the "setxid" mechanism for passing setxid-type function arguments to the syscall code. SYSCALL_WRAPPERS handles ensuring that all syscall arguments end up with proper sign-extension and is thus the appropriate fix for this problem. On other platforms (s390, powerpc, sparc64, and mips) this was fixed in 2.6.28.6. The general issue is tracked as CVE-2009-0029. Cc: <[email protected]> Signed-off-by: Chris Metcalf <[email protected]> --- arch/tile/Kconfig | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 96033e2..74239dd 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -11,6 +11,7 @@ config TILE select GENERIC_IRQ_PROBE select GENERIC_PENDING_IRQ if SMP select GENERIC_IRQ_SHOW + select HAVE_SYSCALL_WRAPPERS if TILEGX select SYS_HYPERVISOR select ARCH_HAVE_NMI_SAFE_CMPXCHG -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
