X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Facpi-fpdt.c;h=75648b4d86f91af3a4327c11232d2630c91da6c3;hb=87ff6b1c2a607c47b2374c5be41ac01302714979;hp=af58c7cca6b81dd5e63067a8b4f04c2c3363aaf8;hpb=2c64a8d0caf84254e38f2e76528f2034d37da520;p=elogind.git

diff --git a/src/shared/acpi-fpdt.c b/src/shared/acpi-fpdt.c
index af58c7cca..75648b4d8 100644
--- a/src/shared/acpi-fpdt.c
+++ b/src/shared/acpi-fpdt.c
@@ -146,6 +146,11 @@ int acpi_get_boot_usec(usec_t *loader_start, usec_t *loader_exit) {
         if (brec.type != ACPI_FPDT_BOOT_REC)
                 return -EINVAL;
 
+        if (brec.startup_start == 0 || brec.exit_services_exit < brec.startup_start)
+                return -EINVAL;
+        if (brec.exit_services_exit > NSEC_PER_HOUR)
+                return -EINVAL;
+
         if (loader_start)
                 *loader_start = brec.startup_start / 1000;
         if (loader_exit)