RE: nrf9151: OTP memory read corrupts Zephyr OS kernel

Alexey Papkovskiy — Fri, 06 Mar 2026 09:28:26 GMT

Thank you 👍, upgrading SDK to v3.2.3 fixes the issue 🔥
BR,
Alexey

Vidar Berg — Thu, 05 Mar 2026 10:24:17 GMT

Hello,

Good catch! Yes, you found the root cause which is that the nrf91_errata_7() is returning false in some cases which causes the workaround to not be applied here: https://github.com/zephyrproject-rtos/hal_nordic/blob/0dbbf4794156ca09dc2d4bad8c42dcdb54acd662/nrfx/drivers/include/nrfx_nvmc.h#L374. A temporary fix for this was added in SDK v3.2.2 https://github.com/nrfconnect/sdk-trusted-firmware-m/commit/f36cea2c7dd9317fc0dbafc380a50666c822d02d#diff-e5e08585e52a442929964c059a5cd309491260b5032a79607edbf0d789bcad81 while waiting for the system startup file to be updated which is a part of the MDK package that is released separately.

Best regards,

Vidar