Hi all! программист некто (in CC) reported this bug a few weeks back in Debian. Since I applied the bundle of filesystem bounds-checking fixes a few months back, he can't run grub-install. He's done the work to determine that the patch that breaks things for him is
2d014248d540c7e087934a94b6e7a2aa7fc2c704 fs/f2fs: Do not read past the end of nat journal entries The full thread of our discussion is at https://bugs.debian.org/1021846 I don't have any knowledge of f2fs to go any further here. Help please! :-) ----- Forwarded message from программист некто <programmer11...@programist.ru> ----- From: программист некто <programmer11...@programist.ru> To: sub...@bugs.debian.org Date: Sat, 15 Oct 2022 23:54:36 +0300 Subject: Bug#1021846: grub-install is broken since 2.06-3: error: unknown filesystem Message-Id: <3168731665867...@wf4nrjvtssjecb53.iva.yp-c.yandex.net> Package: grub-pc Version: 2.06-3~deb11u1 Severity: critical Hello. Since version 2.06-3, grub-install is broken: it fails with "error: unknown filesystem". I test command /usr/sbin/grub-install -v /dev/sda in some versions. Results in mail attachments. Versions older than 2.06-3 works without error (2.06-2 and lower). Tested versions: 2.04-20, 2.06-1, 2.06-2, 2.06-3~deb10u1, 2.06-3~deb11u1, 2.06-4. Disk partitions: # fdisk --list-details Disk /dev/sda: 29,82 GiB, 32017047552 bytes, 62533296 sectors Disk model: TS32GSSD370S Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0xc7177f7e Device Boot Start End Sectors Id Type Start-C/H/S End-C/H/S Attrs /dev/sda1 2048 22763519 22761472 83 Linux 4/4/1 1023/254/2 /dev/sda2 * 25866240 62531583 36665344 7 HPFS/ 1023/254/2 1023/254/2 80 $ disktype /dev/sda1 --- /dev/sda1 Block device, size 10.85 GiB (11653873664 bytes) F2FS file system (version 1.14) $ disktype /dev/sda2 --- /dev/sda2 Block device, size 17.48 GiB (18772656128 bytes) NTFS file system Volume size 17.48 GiB (18772652032 bytes, 36665336 sectors) ----- End forwarded message ----- -- Steve McIntyre, Cambridge, UK. st...@einval.com Mature Sporty Personal More Innovation More Adult A Man in Dandism Powered Midship Specialty