Commit 800868a9 authored by Michal Kozikowski's avatar Michal Kozikowski Committed by Dominik Ermel
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bootutil: swap_scratch: Fix scratch scrambling 



This commit fixes the scrambling of the scratch area after
persisting a trailer to the primary slot. Previous use of
boot_erase_region() didn't guarantee that the scratch area is
scrambled, as it only erases memory for devices that selects
CONFIG_MCUBOOT_STORAGE_WITH_ERASE.

Signed-off-by: default avatarMichal Kozikowski <michal.kozikowski@nordicsemi.no>
parent 6b70855e

boot/bootutil/src/swap_scratch.c

+1 −1
Original line number Diff line number Diff line
@@ -913,7 +913,7 @@ boot_swap_sectors(int idx, uint32_t sz, struct boot_loader_state *state, 
            * happens then the scratch which is partially erased would be wrote back to the

            * primary slot, causing a corrupt unbootable image

            */

            rc = boot_erase_region(fap_scratch, 0, flash_area_get_size(fap_scratch), true);

            rc = boot_scramble_region(fap_scratch, 0, flash_area_get_size(fap_scratch), true);

            assert(rc == 0);

        }

    }

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