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misaligned pointer dereference #29

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WilfredC64 opened this issue Jul 8, 2023 · 1 comment
Closed

misaligned pointer dereference #29

WilfredC64 opened this issue Jul 8, 2023 · 1 comment

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@WilfredC64
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Since Rust 1.70 using stable-i686-pc-windows-msvc on Windows, calling:

if_addrs::get_if_addrs()

results in the following error in debug mode:

thread 'main' panicked at 'misaligned pointer dereference: address must be a multiple of 0x8 but is 0x14bc664', ..cargo\registry\src\index.crates.io-1cd66030c949c28d\if-addrs-0.10.1\src\windows.rs:194:26
stack backtrace:
0: std::panicking::begin_panic_handler
at /rustc/90c541806f23a127002de5b4038be731ba1458ca/library\std\src\panicking.rs:578
1: core::panicking::panic_fmt
at /rustc/90c541806f23a127002de5b4038be731ba1458ca/library\core\src\panicking.rs:67
2: core::panicking::panic_misaligned_pointer_dereference
at /rustc/90c541806f23a127002de5b4038be731ba1458ca/library\core\src\panicking.rs:174
3: if_addrs::windows::impl$5::next
at ..cargo\registry\src\index.crates.io-1cd66030c949c28d\if-addrs-0.10.1\src\windows.rs:194
4: if_addrs::getifaddrs_windows::get_if_addrs
at ..cargo\registry\src\index.crates.io-1cd66030c949c28d\if-addrs-0.10.1\src\lib.rs:235
5: if_addrs::get_if_addrs
at ..cargo\registry\src\index.crates.io-1cd66030c949c28d\if-addrs-0.10.1\src\lib.rs:359

This has to do with the following change in Rust 1.70:

rust-lang/rust#98112

The issue doesn't occur in older version of Rust.

@WilfredC64
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Issue is solved in Rust 1.71

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