linux-kernel - [PATCH] x86: Fix ldt limit for 64 bit

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 11 Jul 2008 18:04:46 +0200
From:	Michael Karcher <kernel@...rcher.dialup.fu-berlin.de>
To:	tglx@...uxtronix.de, mingo@...hat.com, hpa@...or.com
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] x86: Fix ldt limit for 64 bit

From: Michael Karcher <kernel@...rcher.dialup.fu-berlin.de>

Fix size of LDT entries. On x86-64, ldt_desc is a double-sized descriptor.

Signed-off-by: Michael Karcher <kernel@...rcher.dialup.fu-berlin.de>
---
 include/asm-x86/desc.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/asm-x86/desc.h b/include/asm-x86/desc.h
index 268a012..28bddbc 100644
--- a/include/asm-x86/desc.h
+++ b/include/asm-x86/desc.h
@@ -192,8 +192,8 @@ static inline void native_set_ldt(const void *addr, unsigned int entries)
 		unsigned cpu = smp_processor_id();
 		ldt_desc ldt;
 
-		set_tssldt_descriptor(&ldt, (unsigned long)addr,
-				      DESC_LDT, entries * sizeof(ldt) - 1);
+		set_tssldt_descriptor(&ldt, (unsigned long)addr, DESC_LDT,
+				      entries * LDT_ENTRY_SIZE - 1);
 		write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_LDT,
 				&ldt, DESC_LDT);
 		asm volatile("lldt %w0"::"q" (GDT_ENTRY_LDT*8));
-- 
1.5.5.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/