linux-kernel - [GIT PULL 07/12 for v7.0] vfs minix

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Message-ID: <20260206-vfs-minix-v70-94555c213288@brauner>
Date: Fri,  6 Feb 2026 17:50:03 +0100
From: Christian Brauner <brauner@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Christian Brauner <brauner@...nel.org>,
	linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [GIT PULL 07/12 for v7.0] vfs minix

Hey Linus,

/* Summary */

This contains minix changes for this cycle.

Add required sanity checking to minix_check_superblock() The minix
filesystem driver does not validate several superblock fields before
using them during mount, allowing a crafted filesystem image to trigger
out-of-bounds accesses (reported by syzbot).

Consolidate and strengthen superblock validation in
minix_check_superblock().

/* Testing */

gcc (Debian 14.2.0-19) 14.2.0
Debian clang version 19.1.7 (3+b1)

No build failures or warnings were observed.

/* Conflicts */

Merge conflicts with mainline
=============================

No known conflicts.

Merge conflicts with other trees
================================

The following changes since commit 8f0b4cce4481fb22653697cced8d0d04027cb1e8:

  Linux 6.19-rc1 (2025-12-14 16:05:07 +1200)

are available in the Git repository at:

  git@...olite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs tags/vfs-7.0-rc1.minix

for you to fetch changes up to 8c97a6ddc95690a938ded44b4e3202f03f15078c:

  minix: Add required sanity checking to minix_check_superblock() (2026-01-19 12:16:06 +0100)

----------------------------------------------------------------
vfs-7.0-rc1.minix

Please consider pulling these changes from the signed vfs-7.0-rc1.minix tag.

Thanks!
Christian

----------------------------------------------------------------
Jori Koolstra (1):
      minix: Add required sanity checking to minix_check_superblock()

 fs/minix/inode.c | 50 +++++++++++++++++++++++++++++---------------------
 1 file changed, 29 insertions(+), 21 deletions(-)