Re: [PATCH v10 6/8] ima: kexec: move IMA log copy from kexec load to execute

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On 3/19/2025 7:06 PM, Baoquan He wrote:
On 03/17/25 at 06:04pm, steven chen wrote:
...snip...
---
  kernel/kexec_file.c                | 10 ++++++
  security/integrity/ima/ima_kexec.c | 51 ++++++++++++++++++------------
  2 files changed, 40 insertions(+), 21 deletions(-)

diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index 606132253c79..ab449b43aaee 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -201,6 +201,13 @@ kimage_validate_signature(struct kimage *image)
  }
  #endif
+static void kimage_file_post_load(struct kimage *image)
+{
+#ifdef CONFIG_IMA_KEXEC
+	ima_kexec_post_load(image);
+#endif
+}
+
  /*
   * In file mode list of segments is prepared by kernel. Copy relevant
   * data from user space, do error checking, prepare segment list
@@ -428,6 +435,9 @@ SYSCALL_DEFINE5(kexec_file_load, int, kernel_fd, int, initrd_fd,
kimage_terminate(image); + if (!(flags & KEXEC_FILE_ON_CRASH))
+		kimage_file_post_load(image);
machine_kexec_post_load() is called by both kexec_load and kexec_file_load,
we should use it to do things post load, but not introducing another
kimage_file_post_load().

Hi Baoquan,

Could you give me more detail about this?

Thanks,

Steven


+
  	ret = machine_kexec_post_load(image);
  	if (ret)
  		goto out;
...snip...






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