Re: [PATCH] libiberty: prevent buffer overflow when decoding user input

On Tue, 2021-10-12 at 15:40 -0400, Eric Gallager wrote: > On Tue, Oct 12, 2021 at 8:55 AM Luís Ferreira > wrote: > > > > On Fri, 2021-10-08 at 22:11 +0200, Iain Buclaw wrote: > > > Excerpts from Luís Ferreira's message of October 8, 2021 7:08 pm: > > > > On Fri, 2021-10-08 at 18:52 +0200, Iain Bu

Re: [PATCH] libiberty: prevent null dereferencing on dlang_type

Hi, Yes, I'm sorry, I forgot to add --format=dlang parameter. This patch fixes it https://gcc.gnu.org/pipermail/gcc-patches/2021-September/580544.html . On Fri, 2021-10-01 at 07:23 -0700, H.J. Lu wrote: > On Thu, Sep 23, 2021 at 8:55 AM Jeff Law via Gcc-patches > wrote: > > > > > > > > On 9/2

Re: [PATCH] libiberty: prevent buffer overflow when decoding user input

Hi, Here is an example of a crafted mangle that can cause heap buffer overflow. ``` fuzzer-results/crash-18b7f0799be49886550876b5ab6bb63e4231979b _D2FGWG4EQe 5f 44 32 46 47 57 47 34 34 34 34 34 34 34 34 34 |_D2FGWG4| 0010 34 34 34 34 34 34 34 34 45 51 65