Hi Rumen,
address sanitization is currently not supported, only undefined behavior
sanitization when using the Genode build system (not Goa).
What is the value of the stack pointer? Maybe it is a stack overflow?
Christian
On 17.02.26 10:31, Rumen Mitov via users wrote:
> Hi,
>
> In my project I am encountering a segfault when trying to allocate with
> `Genode::Heap` (GDB output is from base-linux):
>
> ```
> Thread 19 "ld.lib.so" received signal SIGSEGV, Segmentation fault.
> [Switching to LWP 13744]
> 0x0000000050019fc8 in Genode::Allocator_avl_base::Block::find_best_fit
> (this=0x7ffff43efd78, size=8128, align=3, range=...)
> at /phantomuserland/genode/repos/base/src/lib/base/allocator_avl.cc:28
> 28 {
> ```
>
> According to the backtrace (see backtrace.log, if interested), I suspect the
> `find_best_fit` method is being called in an infinite loop. I was not able to
> recreate this SEGFAULT in a fresh Genode project, so the issue must be from
> my project's code.
>
> What's interesting is that the SEGFAULT occurs during a `push %rbx`
> instruction, so perhaps this is due to stack corruption?
>
> I tried adding `-fsanitize=address` to my compile flags, however during `goa
> build` I get errors stating that the linker cannot find any references to
> asan symbols (see build.log). I checked, and I have libasan8 installed.
>
> Is address sanitization supported in Genode projects? If so, how can I
> compile my project with it?
>
> Best,
> Rumen
>
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