diff options
| -rw-r--r-- | include/linux/kexec.h | 5 | ||||
| -rw-r--r-- | kernel/kexec_file.c | 5 | ||||
| -rw-r--r-- | security/integrity/ima/ima_kexec.c | 2 |
3 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/kexec.h b/include/linux/kexec.h index 9e4e638fb505..fe9f6f2dd811 100644 --- a/include/linux/kexec.h +++ b/include/linux/kexec.h @@ -260,6 +260,11 @@ 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 */ diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c index c6a3b6851372..2fbdb78d66c8 100644 --- a/kernel/kexec_file.c +++ b/kernel/kexec_file.c @@ -168,6 +168,11 @@ 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); diff --git a/security/integrity/ima/ima_kexec.c b/security/integrity/ima/ima_kexec.c index 9f8449dea5b6..6a10d4d8b6e1 100644 --- a/security/integrity/ima/ima_kexec.c +++ b/security/integrity/ima/ima_kexec.c @@ -134,6 +134,8 @@ 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); } |