Bug#1021846: [programmer11180 at programist.ru: Bug#1021846: grub-install is broken since 2.06-3: error: unknown filesystem]

[Daniel Kiper]

Adding Daniel Axtens...

On Tue, Nov 15, 2022 at 06:31:45PM +0000, Steve McIntyre wrote:
> 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 <programmer11180 at programist.ru> -----
>
> From: программист некто <programmer11180 at programist.ru>
> To: submit at 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: <3168731665867229 at 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.                                steve at einval.com
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