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Fixes for 5.18-rc1:

Browse source 
- Fix a potential infinite loop in FIEMAP by fixing an off by one error
    when comparing the requested range against s_maxbytes.
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Merge tag 'vfs-5.18-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull vfs fix from Darrick Wong:
 "The erofs developers felt that FIEMAP should handle ranged requests
  starting at s_maxbytes by returning EFBIG instead of passing the
  filesystem implementation a nonsense 0-byte request.

  Not sure why they keep tagging this 'iomap', but the VFS shouldn't be
  asking for information about ranges of a file that the filesystem
  already declared that it does not support.

   - Fix a potential infinite loop in FIEMAP by fixing an off by one
     error when comparing the requested range against s_maxbytes"

* tag 'vfs-5.18-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  fs: fix an infinite loop in iomap_fiemap
This commit is contained in:
Linus Torvalds 2022-04-01 19:35:56 -07:00
parent b32e3819a8 49df342218
commit a4251ab989
1 changed files with 1 additions and 1 deletions
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2
fs/ioctl.c
View file

@ -173,7 +173,7 @@ int fiemap_prep(struct inode *inode, struct fiemap_extent_info *fieinfo,
if (*len == 0)
return -EINVAL;
if (start > maxbytes)
if (start >= maxbytes)
return -EFBIG;
/*