On Fri, Feb 28, 2025 at 01:07:06PM +0000, B Horn wrote: > On some NTFS volumes GRUB would enter an infinite loop when > next_attribute() returned NULL, which can happen in normal cases when > the end of the attribute list is reached. > This would trigger a NULL deref, but as the null page is mapped on the > majority of firmware, an infinite loop would occur as the while loop > didn't make any progress. > > Fixing this by verifying the value of at->attr_cur on the next iteration > of the loop, after it has been set to the result of next_attribute(). > Also removing the redundant check against mft_end as the > next_attribute() should handle that now. > A pointer to the end of the buffer is stored in at->end, which is > initialized the same way as mft_end was. > > Fixes: https://savannah.gnu.org/bugs/index.php?66855 > > Reported-by: Andreas Klauer <andreas.kla...@metamorpher.de> > Signed-off-by: B Horn <b...@horn.uk>
Thank you, it works fine here. Regards Andreas _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
