[Backport v4.3-branch] mcumgr: Prevent FW loader from self-destruction #100936
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The FW loader reports and manages exactly two slots: - slot 0: this is the slot for the application code to update - slot 1: this is the slot, in which the FW loader is placed The slot 1 is reported, so tools can fetch metadata about the FW loader installed on the device. Unfortunately, currently SMP-based FW loader allows to issue slot erase command for the slot 1, effectively erasing the FW loader code that is being executed. This change correctly identifies the slot 1 as an active one, marking it as used and blocking erase operation on that slot. Signed-off-by: Tomasz Chyrowicz <[email protected]> (cherry picked from commit 26128ab)
nordicjm
approved these changes
Dec 12, 2025
jhedberg
approved these changes
Dec 12, 2025
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Backport 26128ab from #100689.
Fixes #100715