zephyr: fix overflow and overlap checks in memcpy_s #9769
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tmleman
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kv2019i
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@tmleman can you update, rebase and force push - fix just merged for GH actions to pass. Thanks ! |
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This patch addresses an issue in the `memcpy_s` function within the Zephyr RTOS string header. The issue was identified during IPC3 fuzz testing with UndefinedBehaviorSanitizer enabled. Changes include: - Adding `stdint.h` for `uintptr_t` type. - Adding checks to prevent overflow in pointer arithmetic. - Adjusting overlap checks to avoid overflow. These changes ensure that the `memcpy_s` function correctly handles edge cases, preventing undefined behavior due to pointer arithmetic overflow and memory overlap. Fixes thesofproject#9768 Signed-off-by: Tomasz Leman <[email protected]>
lyakh
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This patch addresses an issue in the
memcpy_sfunction within the Zephyr RTOS string header. The issue was identified during IPC3 fuzz testing with UndefinedBehaviorSanitizer enabled.Changes include:
stdint.hforuintptr_ttype.These changes ensure that the
memcpy_sfunction correctly handles edge cases, preventing undefined behavior due to pointer arithmetic overflow and memory overlap.Fixes #9768