I want to use the part of the filesystem codes in GRUB to read different filesystems on Windows. I have almost completed it and I will release it in a few days. But it crash sometimes because of the write of zero pointer.I debug it and find why it crashed.When I apply this patch, it won't crash because of this reason.
On Fri, Sep 18, 2015 at 12:03 PM, Andrei Borzenkov <arvidj...@gmail.com> wrote: > 18.09.2015 03:15, Arch Stack пишет: > >> I found that the function *grub_disk_cache_store* didn't check for >> *cache->lock* before free *cache->data*, and didn't set *cache->lock* >> before memcpy something to *cache->data*. If multi thread handle with the >> same cache at the same time, it will cause a fault. >> > > Do you actually observe a problem or it is pure hypothesis? GRUB does not > run multi-threaded and probably never will. > > I have created a patch >> for it. >> >> >> >> _______________________________________________ >> Grub-devel mailing list >> Grub-devel@gnu.org >> https://lists.gnu.org/mailman/listinfo/grub-devel >> >> > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > https://lists.gnu.org/mailman/listinfo/grub-devel >
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