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Merge branch 'ima-kexec-fixes' into next-integrity

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This commit is contained in:
Mimi Zohar 2021-02-10 16:34:06 -05:00
commit cccb0efdef
3 changed files with 13 additions and 0 deletions
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5
include/linux/kexec.h
View File

@ -300,6 +300,11 @@ struct kimage {
/* Information for loading purgatory */
struct purgatory_info purgatory_info;
#endif
#ifdef CONFIG_IMA_KEXEC
/* Virtual address of IMA measurement buffer for kexec syscall */
void *ima_buffer;
#endif
};
/* kexec interface functions */

5
kernel/kexec_file.c
View File

@ -166,6 +166,11 @@ void kimage_file_post_load_cleanup(struct kimage *image)
vfree(pi->sechdrs);
pi->sechdrs = NULL;
#ifdef CONFIG_IMA_KEXEC
vfree(image->ima_buffer);
image->ima_buffer = NULL;
#endif /* CONFIG_IMA_KEXEC */
/* See if architecture has anything to cleanup post load */
arch_kimage_file_post_load_cleanup(image);

3
security/integrity/ima/ima_kexec.c
View File

@ -119,6 +119,7 @@ void ima_add_kexec_buffer(struct kimage *image)
ret = kexec_add_buffer(&kbuf);
if (ret) {
pr_err("Error passing over kexec measurement buffer.\n");
vfree(kexec_buffer);
return;
}
@ -128,6 +129,8 @@ void ima_add_kexec_buffer(struct kimage *image)
return;
}
image->ima_buffer = kexec_buffer;
pr_debug("kexec measurement buffer for the loaded kernel at 0x%lx.\n",
kbuf.mem);
}