[PATCH] KVM: SVM: snp_alloc_firmware_pages: memory leak
From: Alexey Kardashevskiy
Date: Thu Feb 13 2025 - 23:00:09 EST
Failure to rmpupdate leads to page(s) leak, fix that.
Signed-off-by: Alexey Kardashevskiy <aik@xxxxxxx>
---
drivers/crypto/ccp/sev-dev.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c
index 2e87ca0e292a..0b5f8ab657c5 100644
--- a/drivers/crypto/ccp/sev-dev.c
+++ b/drivers/crypto/ccp/sev-dev.c
@@ -443,8 +443,10 @@ static struct page *__snp_alloc_firmware_pages(gfp_t gfp_mask, int order)
return page;
paddr = __pa((unsigned long)page_address(page));
- if (rmp_mark_pages_firmware(paddr, npages, false))
+ if (rmp_mark_pages_firmware(paddr, npages, false)) {
+ __free_pages(page, order);
return NULL;
+ }
return page;
}
--
2.47.1