Changelog in Linux kernel 6.6.133

 
Linux: Linux 6.6.133 [+ + +] 
Author: Greg Kroah-Hartman <[email protected]>
Date:   Mon Apr 6 09:55:59 2026 +0200

    Linux 6.6.133
    
    Signed-off-by: Greg Kroah-Hartman <[email protected]>
 
Revert "xattr: switch to CLASS(fd)" [+ + +] 
Author: Tomasz Kramkowski <[email protected]>
Date:   Sun Apr 5 12:45:04 2026 +0100

    Revert "xattr: switch to CLASS(fd)"
    
    This reverts commit 5a1e865e51063d6c56f673ec8ad4b6604321b455 which is
    commit a71874379ec8c6e788a61d71b3ad014a8d9a5c08 upstream.
    
    A backporting mistake erroneously removed file descriptor checks for
    `fgetxattr`, `flistxattr`, `fremovexattr`, and `fsetxattr` which lead to
    kernel panics when those functions were called from userspace with a
    file descriptor which did not reference an open file.
    
    Reported-by: Brad Spengler <[email protected]>
    Closes: https://x.com/spendergrsec/status/2040049852793450561
    Cc: Alva Lan <[email protected]>
    Cc: Al Viro <[email protected]>
    Signed-off-by: Tomasz Kramkowski <[email protected]>
    Tested-by: Barry K. Nathan <[email protected]>
    Signed-off-by: Greg Kroah-Hartman <[email protected]>
 
xattr: switch to CLASS(fd) [+ + +] 
Author: Al Viro <[email protected]>
Date:   Sun Apr 5 12:45:05 2026 +0100

    xattr: switch to CLASS(fd)
    
    [ Upstream commit a71874379ec8c6e788a61d71b3ad014a8d9a5c08 ]
    
    Reviewed-by: Christian Brauner <[email protected]>
    Signed-off-by: Al Viro <[email protected]>
    Link: https://lore.kernel.org/all/[email protected]/
    [ Neither `fd_file` nor `fd_empty` are available in 6.6.y, so the
      changes to the check are dropped. Kept the minor formatting change. ]
    Signed-off-by: Tomasz Kramkowski <[email protected]>
    Tested-by: Barry K. Nathan <[email protected]>
    Signed-off-by: Greg Kroah-Hartman <[email protected]>