https://sourceware.org/bugzilla/show_bug.cgi?id=33006
Mark Wielaard <mark at klomp dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|UNCONFIRMED |RESOLVED
--- Comment #6 from Mark Wielaard <mark at klomp dot org> ---
commit 07bd923cea4b883ca2357e9fc80babcedd242b37
Author: Mark Wielaard <[email protected]>
Date: Tue Jun 3 01:50:07 2025 +0200
libcpu: riscv_disasm use 50 char mnebuf
Some "illegal" instructions can be up to 24 chars (192 bits), We'll
print this as 0x<48 hex chars>. So make sure the mnebuf is 50 chars
(no terminating zero is needed).
This shows up with _FORTIFY_SOURCE which would immediate terminate on
such "illegal" instructions. Without we just use a few extra bytes on
the stack (which aren't used afterwards, without any issue, even
though it is technically UB).
* libcpu/riscv_disasm.c (riscv_disasm): Extend char mnebuf
array to 50.
Signed-off-by: Mark Wielaard <[email protected]>
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