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-rw-r--r--drivers/acpi/apei/erst.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index 6742f6c68034..9bff853e85f3 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -1007,7 +1007,7 @@ skip:
/* The record may be cleared by others, try read next record */
if (len == -ENOENT)
goto skip;
- else if (len < sizeof(*rcd)) {
+ else if (len < 0 || len < sizeof(*rcd)) {
rc = -EIO;
goto out;
}