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Merge tag 'vfs-6.19-rc1.minix' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

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Pull minix fixes from Christian Brauner:
 "Fix two syzbot corruption bugs in the minix filesystem.

  Syzbot fuzzes filesystems by trying to mount and manipulate
  deliberately corrupted images. This should not lead to BUG_ONs and
  WARN_ONs for easy to detect corruptions.

   - Add error handling to minix filesystem for inode corruption
     detection, enabling the filesystem to report such corruptions
     cleanly.

   - Fix a drop_nlink warning in minix_rmdir() triggered by corrupted
     directory link counts.

   - Fix a drop_nlink warning in minix_rename() triggered by corrupted
     inode link counts"

* tag 'vfs-6.19-rc1.minix' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  Fix a drop_nlink warning in minix_rename
  Fix a drop_nlink warning in minix_rmdir
  Add error handling to minix filesystem for inode corruption detection
This commit is contained in:
Linus Torvalds
2025-12-01 15:22:40 -08:00
parent 978d337c2e 0d534518ce
commit 4664fb427c
3 changed files with 57 additions and 7 deletions
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16
fs/minix/inode.c
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@@ -26,6 +26,22 @@ static int minix_write_inode(struct inode *inode,
struct writeback_control *wbc);
static int minix_statfs(struct dentry *dentry, struct kstatfs *buf);
void __minix_error_inode(struct inode *inode, const char *function,
unsigned int line, const char *fmt, ...)
{
struct va_format vaf;
va_list args;
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
printk(KERN_CRIT "minix-fs error (device %s): %s:%d: "
"inode #%lu: comm %s: %pV\n",
inode->i_sb->s_id, function, line, inode->i_ino,
current->comm, &vaf);
va_end(args);
}
static void minix_evict_inode(struct inode *inode)
{
truncate_inode_pages_final(&inode->i_data);