Re: [PATCH] stdio-impl.h: Fix type of _offset field for Android

[Paul Eggert]

On 9/28/22 17:51, Tee KOBAYASHI wrote:
On 32-bit Android fpos_t becomes a 64-bit type when large-file support
is enabled, whereas _offset remains 32-bit. Out-of-bounds read/write
could happen when _offset field is accessed in this situation.

Thanks for the bug report, but does this actually fix the bug? In recent 
Android, _offset is documented to not work; 
android/platform_bionic/libc/stdio/local.h line 101 says "fpos_t 
_unused_0;  // This was the `_offset` field (see below)."

There is a similar issue with DragonFly's _offset field.