1. 21 Jan, 2022 2 commits
    • Linus Torvalds's avatar
      Merge tag 'xfs-5.17-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux · d701a8cc
      Linus Torvalds authored
      Pull xfs irix ioctl housecleaning from Darrick Wong:
       "Remove the XFS_IOC_ALLOCSP* and XFS_IOC_FREESP* ioctl families.
      
        This is the second of a series of small pull requests that perform
        some long overdue housecleaning of XFS ioctls. This time, we're
        vacating the implementation of all variants of the ALLOCSP and FREESP
        ioctls, which are holdovers from EFS in Irix, circa 1993. Roughly
        equivalent functionality have been available for both ioctls since
        2.6.25 (April 2008):
      
         - XFS_IOC_FREESP ftruncates a file.
      
         - XFS_IOC_ALLOCSP is the equivalent of fallocate.
      
        As noted in the fix patch for CVE 2021-4155, the ALLOCSP ioctl has
        been serving up stale disk blocks since 2000, and in 21 years
        **nobody** noticed. On those grounds I think it's safe to vacate the
        implementation.
      
        Note that we lose the ability to preallocate and truncate relative to
        the current file position, but as nobody's ever implemented that for
        the VFS, I conclude that it's not in high demand.
      
        Linux has always used fallocate as the space management system call,
        whereas these Irix legacy ioctls only ever worked on XFS, and have
        been the cause of recent stale data disclosure vulnerabilities. As
        equivalent functionality is available elsewhere, remove the code"
      
      * tag 'xfs-5.17-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
        xfs: kill the XFS_IOC_{ALLOC,FREE}SP* ioctls
      d701a8cc
    • Linus Torvalds's avatar
      Merge tag 'xfs-5.17-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux · 12a8fb20
      Linus Torvalds authored
      Pull xfs ioctl housecleaning from Darrick Wong:
       "This is the first of a series of small pull requests that perform some
        long overdue housecleaning of XFS ioctls. This first pull request
        removes the FSSETDM ioctl, which was used to set DMAPI event
        attributes on XFS files. The DMAPI support has never been merged
        upstream and the implementation of FSSETDM itself was removed two
        years ago, so let's withdraw it completely.
      
         - Withdraw the ioctl definition for the FSSETDM ioctl"
      
      * tag 'xfs-5.17-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
        xfs: remove the XFS_IOC_FSSETDM definitions
      12a8fb20
  2. 20 Jan, 2022 38 commits