[Bug 1948812] Re: Bad busybox modinfo output on exactly 3 modules

[Krzysztof Leszczyński]

** Package changed: ubuntu => busybox (Ubuntu)

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Title:
  Bad busybox modinfo output on exactly 3 modules

Status in busybox package in Ubuntu:
  New

Bug description:
  Trying on Ubuntu 20.04.3 with linux-modules-5.4.0-88-generic and
  busybox

      for a in $(find /lib/modules/5.4.0-88-generic/ -name '*.ko')
      do
         [ $(busybox modinfo -F name $a|wc -w) = 1 ] || echo $a
      done

  This code should output nothing because every module reports just a
  name. Instead it outputs exactly three lines:

      /lib/modules/5.4.0-88-generic/kernel/net/ceph/libceph.ko
      /lib/modules/5.4.0-88-generic/kernel/fs/nfs/nfs.ko
      /lib/modules/5.4.0-88-generic/kernel/zfs/zfs.ko

  Let's try them

       $ busybox modinfo -F name /lib/modules/5.4.0-88-generic/kernel/fs/nfs/nfsv4.ko
       nfsv4
  This is correct, I put it just for the reference. 

  
       $ busybox modinfo -F name /lib/modules/5.4.0-88-generic/kernel/net/ceph/libceph.ko

       %s
       libceph
  The above incorrectly reports one empty line, one literal %s and the name of the module

       $ busybox modinfo -F name /lib/modules/5.4.0-88-generic/kernel/fs/nfs/nfs.ko
       %02x:%02x:%llu/%s

       nfs
  This reports a strange format and empty line and then nfs

       $ busybox modinfo -F name /lib/modules/5.4.0-88-generic/kernel/zfs/zfs.ko 
       %s
       %s creation_txg=%llu target_snap=%llu
       zfs
  Yet another strange format

  
  No other module, except those 3, misbehaved when tried to get a name from busybox modinfo

  Just for your information I used the busybox from the package busybox
  version 1:1.30.1-4ubuntu6.3 amd64 but the very same result was
  generated by the latest compiled busybox

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