On 15/03/2025 07:54, Felix Zielcke wrote:
Hi,
on Debian we got a bug report with a segfault in grub-mount when we
added the CVE fixes to it:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1100470
It crashes on all 3 Windows NTFS Partitions with this:
Program received signal SIGSEGV, Segmentation fault.
Download failed: Invalid argument. Continuing without source file
./obj/grub-pc/../../grub-core/fs/ntfs.c.
0x000055555557de34 in find_attr (at=at@entry=0x555555694ea0,
attr=attr@entry=128 '\200') at ../../grub-core/fs/ntfs.c:390
warning: 390 ../../grub-core/fs/ntfs.c: No such file or directory
Line 390 is the same AFAICS on upstream grub.git and Debian packaging:
while (at->attr_cur < mft_end && *at->attr_cur != 0xFF)
I posted a patch for this issue a bit ago:
https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00179.html
I don't know what is special on their NTFS partitions. I can't
reproduce this with my own dual-boot system.
Is your setup using secure boot? Another one of the recent patches
disabled ntfs if secure boot is active:
https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00073.html
