linux_dsm_epyc7002/arch/x86_64
Satoshi Oshima dc49e3445a [PATCH] kprobes: bad manipulation of 2 byte opcode on x86_64
Problem:

If we put a probe onto a callq instruction and the probe is executed,
kernel panic of Bad RIP value occurs.

Root cause:

If resume_execution() found 0xff at first byte of p->ainsn.insn, it must
check the _second_ byte.  But current resume_execution check _first_ byte
again.

I changed it checks second byte of p->ainsn.insn.

Kprobes on i386 don't have this problem, because the implementation is a
little bit different from x86_64.

Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Satoshi Oshima <soshima@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-21 12:59:21 -07:00
..
boot [PATCH] vesafb: Fix incorrect logo colors in x86_64 2006-04-11 06:18:54 -07:00
crypto [CRYPTO] aes: Fixed array boundary violation 2006-03-21 20:14:10 +11:00
ia32 [PATCH] x86_64: Add compat_sys_vmsplice and use it in x86-64 2006-05-01 18:17:43 -07:00
kernel [PATCH] kprobes: bad manipulation of 2 byte opcode on x86_64 2006-05-21 12:59:21 -07:00
lib [PATCH] x86_64: remove dead do_softirq_thunk 2006-03-25 09:10:53 -08:00
mm [PATCH] x86_64: Fix memory hotadd heuristics 2006-05-16 07:59:31 -07:00
oprofile [PATCH] Move Kprobes and Oprofile to "Instrumentation Support" menu 2005-11-07 07:53:35 -08:00
pci [PATCH] x86_64: Fix embarassing typo in mmconfig bus check 2006-04-11 06:38:57 -07:00
defconfig [PATCH] x86_64: Update defconfig 2006-04-18 10:39:19 -07:00
Kconfig [PATCH] Configurable NODES_SHIFT 2006-04-11 06:18:39 -07:00
Kconfig.debug [PATCH] x86_64: Remove CONFIG_INIT_DEBUG 2006-02-04 16:43:13 -08:00
Makefile [PATCH] x86_64: fix CONFIG_REORDER 2006-04-09 11:53:53 -07:00