A typical scenario is: when XIP on PSRAM enabled, compiler optimization level is Os. Under certain binary layout, boot hangs and backtrace points to `esp_sleep_config_gpio_isolate`.
The root cause is that, during PSRAM initialization, it calls esp_gpio_reserve, which happens to place before the reported function. However, after call, there is no barrier before the clock adjustment in `mspi_timing_enter_low_speed_mode`. The clock gets changed when the cache is still fetching data, resulting in the corrupted data in the end of the cache line.
This commits add spi_flash_disable_cache as a barrier to make sure the cache transactions is finished before the clock switch.
The digest length and the condition that reserves it at the end of RTC RAM were
duplicated in seven places. Hold the reservation in a hidden Kconfig value that
is zero when the feature does not apply, so every consumer subtracts it
unconditionally, and derive ESP_SECURE_BOOT_DIGEST_LEN from it.
related: obex, smp, pbap, sdp, rfcomm, stack_dm
- Deinit function doesn't delete connection when OBEX_DYNAMIC_MEMORY is on
- Union tGOEPC_DATA sometimes is free by osi_free in some cases when it contains mtu_id
- Add correct free and return solution after fail
- Fix symbol mistake in mod calculation
- Fix pointer-related UAF problems and memory free problems
- Fix buffer overflows and out-of-bounds access
- Fix infinite loops triggered by integer overflow wraparound
- Fix double free
- Change layer_specific usage to avoid heap overflow
- Add some NULL check for pointers
- Fix sdp_db free function
- Fix state table mismatch
Guard start_command_read_blocks against cards that place TOKEN_BLOCK_START so early that extra_data_size exceeds the bytes expected on the current iteration. Without this check, the unsigned subtraction for will_receive underflows and propagates into memset, SPI transaction length, and memcpy counts against the fixed 516-byte block buffer.
ESP_RETURN_ON_ERROR inside the s_i2c_platform.mutex critical section
returns without releasing the mutex, permanently blocking all I2C
bus operations. Replace with ESP_GOTO_ON_ERROR that jumps to a
cleanup label releasing the mutex before return.
Pointer arithmetic on rtc_retain_mem_t* subtracted ESP_SECURE_BOOT_DIGEST_LEN
in struct units instead of bytes. Cast through uintptr_t so retain mem stays
below the ROM verified-image digest region on deep-sleep wake.
Partial backport of !51265 (bootloader_common_loader.c only).
Validate MTU from DHCP option 26 against RFC 2132 minimum (68 bytes)
before applying to netif->mtu, preventing rogue DHCP servers from
setting MTU to 0 or other dangerously low values that cause integer
wraparound in IPv4 fragmentation.
When PORT_RX_BUF_LOW_WM is too low, RFCOMM replenishes credits only
after receiving a relatively large number of packets, which may cause
the peer to exhaust its credits and enter a stop-and-wait state.
Increase the low watermark to replenish credits more promptly and
reduce the likelihood of the peer stalling while waiting for additional
credits.