On 5/2/2025 1:03 PM, steven chen wrote:
From: Steven Chen <chen...@linux.microsoft.com>
Kdump kernel doesn't need IMA to do integrity measurement.
Hence the measurement list in 1st kernel doesn't need to be copied to
kdump kenrel.
Here skip allocating buffer for measurement list copying if loading
kdump kernel. Then there won't be the later handling related to
ima_kexec_buffer.
Signed-off-by: Steven Chen <chen...@linux.microsoft.com>
---
security/integrity/ima/ima_kexec.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/security/integrity/ima/ima_kexec.c
b/security/integrity/ima/ima_kexec.c
index 38cb2500f4c3..7362f68f2d8b 100644
--- a/security/integrity/ima/ima_kexec.c
+++ b/security/integrity/ima/ima_kexec.c
@@ -146,6 +146,9 @@ void ima_add_kexec_buffer(struct kimage *image)
void *kexec_buffer = NULL;
int ret;
+ if (image->type == KEXEC_TYPE_CRASH)
+ return;
+
/*
* Reserve extra memory for measurements added during kexec.
*/
Hi Baoquan,
Could you tell me when will you have time to validate kdump scenario
using this patch?
This patch is based on the next-integrity branch of
https://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git/
Thanks,
Steven
