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vfs-7.3-rc1.fat

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Please consider pulling these changes from the signed vfs-7.3-rc1.fat tag.
 
 Thanks!
 Christian
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Merge tag 'vfs-7.3-rc1.fat' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull FAT update from Christian Brauner:
 "This rejects names longer than NAME_MAX in msdos_format_name().

  The VFS only enforces PATH_MAX rather than the length of an individual
  component. open() on such a path component reported success for a name
  far longer than NAME_MAX"

* tag 'vfs-7.3-rc1.fat' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  fat: reject name longer than NAME_MAX in msdos_format_name()
This commit is contained in:
Linus Torvalds 2026-08-17 09:30:42 -07:00
commit 3d1f952677
1 changed files with 3 additions and 0 deletions
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3
fs/fat/namei_msdos.c
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@ -29,6 +29,9 @@ static int msdos_format_name(const unsigned char *name, int len,
unsigned char c;
int space;
if (len > NAME_MAX)
return -ENAMETOOLONG;
if (name[0] == '.') { /* dotfile because . and .. already done */
if (opts->dotsOK) {
/* Get rid of dot - test for it elsewhere */