From: Eugene Surovegin <surovegin@xxxxxxxxxx>
Include kASLR offset in VMCOREINFO ELF notes to assist in debugging.
Signed-off-by: Eugene Surovegin <surovegin@xxxxxxxxxx>
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
v2:
- make sure "From:" got sent correctly
---
arch/x86/kernel/machine_kexec_64.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
index 4eabc160696f..679cef0791cd 100644
--- a/arch/x86/kernel/machine_kexec_64.c
+++ b/arch/x86/kernel/machine_kexec_64.c
@@ -279,5 +279,7 @@ void arch_crash_save_vmcoreinfo(void)
VMCOREINFO_SYMBOL(node_data);
VMCOREINFO_LENGTH(node_data, MAX_NUMNODES);
#endif
+ vmcoreinfo_append_str("KERNELOFFSET=%lx\n",
+ (unsigned long)&_text - __START_KERNEL);
}
--
1.7.9.5
--
Kees Cook
Chrome OS Security
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