[Bug 1773223] [NEW] man -l local-file fails with Access Denied

Frank Denissen 1773223 at bugs.launchpad.net
Thu May 24 17:15:15 UTC 2018 

Public bug reported:

I use dh_installman to install man pages in a debian package. This fails
on bionic, but succeeds in artful.

In bionic (version man-db 2.8.3-2)

dh_installman --verbose
        install -p -m0644 ./debian/fden_clean_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_clean_nzb.1
        install -p -m0644 ./debian/fden_create_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_create_nzb.1
        install -p -m0644 ./debian/fden_delete_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_delete_nzb.1
        install -p -m0644 ./debian/fden_grab_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_grab_nzb.1
        install -p -m0644 ./debian/fden_start_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1
        man -l --recode UTF-8 ./debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1 > debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1.dh-new
man: can't open ./debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1: Toegang geweigerd
dh_installman: man -l --recode UTF-8 ./debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1 > debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1.dh-new returned exit code 2
dh_installman: Aborting due to earlier error

man -l <relative filename> always fails, also when executed manually. I can "cat" the indicated manfile without any problem. I also executed the man -l command in strace and found this:
19540 lstat("/usr/local/share/man", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
19540 stat("./debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1", 0x7fff5d390630) = -1 EACCES (Permission denied)

The same command with --debug option:
man -l --recode UTF-8 --debug ./debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1
ruid=1000, euid=1000
rgid=1000, egid=1000
++priv_drop_count = 1
>From the config file /etc/manpath.config:

Mandatory mandir `/usr/man'.
Mandatory mandir `/usr/share/man'.
Mandatory mandir `/usr/local/share/man'.
Path `/bin' mapped to mandir `/usr/share/man'.
Path `/usr/bin' mapped to mandir `/usr/share/man'.
Path `/sbin' mapped to mandir `/usr/share/man'.
Path `/usr/sbin' mapped to mandir `/usr/share/man'.
Path `/usr/local/bin' mapped to mandir `/usr/local/man'.
Path `/usr/local/bin' mapped to mandir `/usr/local/share/man'.
Path `/usr/local/sbin' mapped to mandir `/usr/local/man'.
Path `/usr/local/sbin' mapped to mandir `/usr/local/share/man'.
Path `/usr/X11R6/bin' mapped to mandir `/usr/X11R6/man'.
Path `/usr/bin/X11' mapped to mandir `/usr/X11R6/man'.
Path `/usr/games' mapped to mandir `/usr/share/man'.
Path `/opt/bin' mapped to mandir `/opt/man'.
Path `/opt/sbin' mapped to mandir `/opt/man'.
Global mandir `/usr/man', catdir `/var/cache/man/fsstnd'.
Global mandir `/usr/share/man', catdir `/var/cache/man'.
Global mandir `/usr/local/man', catdir `/var/cache/man/oldlocal'.
Global mandir `/usr/local/share/man', catdir `/var/cache/man/local'.
Global mandir `/usr/X11R6/man', catdir `/var/cache/man/X11R6'.
Global mandir `/opt/man', catdir `/var/cache/man/opt'.
Added section `1'.
Added section `n'.
Added section `l'.
Added section `8'.
Added section `3'.
Added section `2'.
Added section `3posix'.
Added section `3pm'.
Added section `3perl'.
Added section `3am'.
Added section `5'.
Added section `4'.
Added section `9'.
Added section `6'.
Added section `7'.
`/usr/man'      `'      `1'
`/usr/share/man'        `'      `1'
`/usr/local/share/man'  `'      `1'
`/bin'  `/usr/share/man'        `0'
`/usr/bin'      `/usr/share/man'        `0'
`/sbin' `/usr/share/man'        `0'
`/usr/sbin'     `/usr/share/man'        `0'
`/usr/local/bin'        `/usr/local/man'        `0'
`/usr/local/bin'        `/usr/local/share/man'  `0'
`/usr/local/sbin'       `/usr/local/man'        `0'
`/usr/local/sbin'       `/usr/local/share/man'  `0'
`/usr/X11R6/bin'        `/usr/X11R6/man'        `0'
`/usr/bin/X11'  `/usr/X11R6/man'        `0'
`/usr/games'    `/usr/share/man'        `0'
`/opt/bin'      `/opt/man'      `0'
`/opt/sbin'     `/opt/man'      `0'
`/usr/man'      `/var/cache/man/fsstnd' `-1'
`/usr/share/man'        `/var/cache/man'        `-1'
`/usr/local/man'        `/var/cache/man/oldlocal'       `-1'
`/usr/local/share/man'  `/var/cache/man/local'  `-1'
`/usr/X11R6/man'        `/var/cache/man/X11R6'  `-1'
`/opt/man'      `/var/cache/man/opt'    `-1'
`1'     `'      `-5'
`n'     `'      `-5'
`l'     `'      `-5'
`8'     `'      `-5'
`3'     `'      `-5'
`2'     `'      `-5'
`3posix'        `'      `-5'
`3pm'   `'      `-5'
`3perl' `'      `-5'
`3am'   `'      `-5'
`5'     `'      `-5'
`4'     `'      `-5'
`9'     `'      `-5'
`6'     `'      `-5'
`7'     `'      `-5'
is a tty
real user = 1000; effective user = 1000

using pager as pager

path directory /usr/local/sbin is in the config file
adding /usr/local/man to manpath
adding /usr/local/share/man to manpath

path directory /usr/local/bin is in the config file
/usr/local/man is already in the manpath
/usr/local/share/man is already in the manpath

path directory /usr/sbin is in the config file
adding /usr/share/man to manpath

path directory /usr/bin is in the config file
/usr/share/man is already in the manpath

path directory /sbin is in the config file
/usr/share/man is already in the manpath

path directory /bin is in the config file
/usr/share/man is already in the manpath

path directory /usr/games is in the config file
/usr/share/man is already in the manpath

path directory /usr/local/games is not in the config file
but does have a ../man, man, ../share/man, or share/man subdirectory
/usr/local/man is already in the manpath

path directory /snap/bin is not in the config file
and doesn't have ../man, man, ../share/man, or share/man subdirectories

adding mandatory man directories

waarschuwing: /usr/man: Bestand of map bestaat niet
/usr/share/man is already in the manpath
/usr/local/share/man is already in the manpath
add_nls_manpaths(): processing /usr/local/man:/usr/local/share/man:/usr/share/man
checking for locale nl_BE.UTF-8
manpath search path (with duplicates) = /usr/share/man/nl:/usr/local/man:/usr/local/share/man:/usr/share/man
adding /usr/share/man/nl to manpathlist
adding /usr/local/man to manpathlist
adding /usr/local/share/man to manpathlist
adding /usr/share/man to manpathlist
Removing duplicate manpath entry /usr/local/share/man (2) -> /usr/local/man (1)
final search path = /usr/share/man/nl:/usr/local/man:/usr/share/man
++priv_drop_count = 2
man: ./debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1: Toegang geweigerd
frank at panter:/mnt/packet/linux/bionic/source/fden-usenet/fden-usenet-3.2$ 


In artful (version man-db 2.7.6.1-2):
dh_installman --verbose
        install -p -m0644 ./debian/fden_clean_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_clean_nzb.1
        install -p -m0644 ./debian/fden_create_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_create_nzb.1
        install -p -m0644 ./debian/fden_delete_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_delete_nzb.1
        install -p -m0644 ./debian/fden_grab_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_grab_nzb.1
        install -p -m0644 ./debian/fden_start_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1
        man -l --recode UTF-8 ./debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1 > debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1.dh-new
        mv debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1.dh-new debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1
        man -l --recode UTF-8 ./debian/fden-usenet/usr/share/man/man1/fden_create_nzb.1 > debian/fden-usenet/usr/share/man/man1/fden_create_nzb.1.dh-new
        mv debian/fden-usenet/usr/share/man/man1/fden_create_nzb.1.dh-new debian/fden-usenet/usr/share/man/man1/fden_create_nzb.1
        man -l --recode UTF-8 ./debian/fden-usenet/usr/share/man/man1/fden_delete_nzb.1 > debian/fden-usenet/usr/share/man/man1/fden_delete_nzb.1.dh-new
        mv debian/fden-usenet/usr/share/man/man1/fden_delete_nzb.1.dh-new debian/fden-usenet/usr/share/man/man1/fden_delete_nzb.1
        man -l --recode UTF-8 ./debian/fden-usenet/usr/share/man/man1/fden_clean_nzb.1 > debian/fden-usenet/usr/share/man/man1/fden_clean_nzb.1.dh-new
        mv debian/fden-usenet/usr/share/man/man1/fden_clean_nzb.1.dh-new debian/fden-usenet/usr/share/man/man1/fden_clean_nzb.1
        man -l --recode UTF-8 ./debian/fden-usenet/usr/share/man/man1/fden_grab_nzb.1 > debian/fden-usenet/usr/share/man/man1/fden_grab_nzb.1.dh-new
        mv debian/fden-usenet/usr/share/man/man1/fden_grab_nzb.1.dh-new debian/fden-usenet/usr/share/man/man1/fden_grab_nzb.1
        chmod 0644 -- debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_create_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_delete_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_clean_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_grab_nzb.1

My release: lsb_release -rd
Description:    Ubuntu 18.04 LTS
Release:        18.04

** Affects: man-db (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1773223

Title:
  man -l local-file fails with Access Denied

Status in man-db package in Ubuntu:
  New

Bug description:
  I use dh_installman to install man pages in a debian package. This
  fails on bionic, but succeeds in artful.

  In bionic (version man-db 2.8.3-2)

  dh_installman --verbose
          install -p -m0644 ./debian/fden_clean_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_clean_nzb.1
          install -p -m0644 ./debian/fden_create_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_create_nzb.1
          install -p -m0644 ./debian/fden_delete_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_delete_nzb.1
          install -p -m0644 ./debian/fden_grab_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_grab_nzb.1
          install -p -m0644 ./debian/fden_start_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1
          man -l --recode UTF-8 ./debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1 > debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1.dh-new
  man: can't open ./debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1: Toegang geweigerd
  dh_installman: man -l --recode UTF-8 ./debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1 > debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1.dh-new returned exit code 2
  dh_installman: Aborting due to earlier error

  man -l <relative filename> always fails, also when executed manually. I can "cat" the indicated manfile without any problem. I also executed the man -l command in strace and found this:
  19540 lstat("/usr/local/share/man", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
  19540 stat("./debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1", 0x7fff5d390630) = -1 EACCES (Permission denied)

  The same command with --debug option:
  man -l --recode UTF-8 --debug ./debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1
  ruid=1000, euid=1000
  rgid=1000, egid=1000
  ++priv_drop_count = 1
  From the config file /etc/manpath.config:

  Mandatory mandir `/usr/man'.
  Mandatory mandir `/usr/share/man'.
  Mandatory mandir `/usr/local/share/man'.
  Path `/bin' mapped to mandir `/usr/share/man'.
  Path `/usr/bin' mapped to mandir `/usr/share/man'.
  Path `/sbin' mapped to mandir `/usr/share/man'.
  Path `/usr/sbin' mapped to mandir `/usr/share/man'.
  Path `/usr/local/bin' mapped to mandir `/usr/local/man'.
  Path `/usr/local/bin' mapped to mandir `/usr/local/share/man'.
  Path `/usr/local/sbin' mapped to mandir `/usr/local/man'.
  Path `/usr/local/sbin' mapped to mandir `/usr/local/share/man'.
  Path `/usr/X11R6/bin' mapped to mandir `/usr/X11R6/man'.
  Path `/usr/bin/X11' mapped to mandir `/usr/X11R6/man'.
  Path `/usr/games' mapped to mandir `/usr/share/man'.
  Path `/opt/bin' mapped to mandir `/opt/man'.
  Path `/opt/sbin' mapped to mandir `/opt/man'.
  Global mandir `/usr/man', catdir `/var/cache/man/fsstnd'.
  Global mandir `/usr/share/man', catdir `/var/cache/man'.
  Global mandir `/usr/local/man', catdir `/var/cache/man/oldlocal'.
  Global mandir `/usr/local/share/man', catdir `/var/cache/man/local'.
  Global mandir `/usr/X11R6/man', catdir `/var/cache/man/X11R6'.
  Global mandir `/opt/man', catdir `/var/cache/man/opt'.
  Added section `1'.
  Added section `n'.
  Added section `l'.
  Added section `8'.
  Added section `3'.
  Added section `2'.
  Added section `3posix'.
  Added section `3pm'.
  Added section `3perl'.
  Added section `3am'.
  Added section `5'.
  Added section `4'.
  Added section `9'.
  Added section `6'.
  Added section `7'.
  `/usr/man'      `'      `1'
  `/usr/share/man'        `'      `1'
  `/usr/local/share/man'  `'      `1'
  `/bin'  `/usr/share/man'        `0'
  `/usr/bin'      `/usr/share/man'        `0'
  `/sbin' `/usr/share/man'        `0'
  `/usr/sbin'     `/usr/share/man'        `0'
  `/usr/local/bin'        `/usr/local/man'        `0'
  `/usr/local/bin'        `/usr/local/share/man'  `0'
  `/usr/local/sbin'       `/usr/local/man'        `0'
  `/usr/local/sbin'       `/usr/local/share/man'  `0'
  `/usr/X11R6/bin'        `/usr/X11R6/man'        `0'
  `/usr/bin/X11'  `/usr/X11R6/man'        `0'
  `/usr/games'    `/usr/share/man'        `0'
  `/opt/bin'      `/opt/man'      `0'
  `/opt/sbin'     `/opt/man'      `0'
  `/usr/man'      `/var/cache/man/fsstnd' `-1'
  `/usr/share/man'        `/var/cache/man'        `-1'
  `/usr/local/man'        `/var/cache/man/oldlocal'       `-1'
  `/usr/local/share/man'  `/var/cache/man/local'  `-1'
  `/usr/X11R6/man'        `/var/cache/man/X11R6'  `-1'
  `/opt/man'      `/var/cache/man/opt'    `-1'
  `1'     `'      `-5'
  `n'     `'      `-5'
  `l'     `'      `-5'
  `8'     `'      `-5'
  `3'     `'      `-5'
  `2'     `'      `-5'
  `3posix'        `'      `-5'
  `3pm'   `'      `-5'
  `3perl' `'      `-5'
  `3am'   `'      `-5'
  `5'     `'      `-5'
  `4'     `'      `-5'
  `9'     `'      `-5'
  `6'     `'      `-5'
  `7'     `'      `-5'
  is a tty
  real user = 1000; effective user = 1000

  using pager as pager

  path directory /usr/local/sbin is in the config file
  adding /usr/local/man to manpath
  adding /usr/local/share/man to manpath

  path directory /usr/local/bin is in the config file
  /usr/local/man is already in the manpath
  /usr/local/share/man is already in the manpath

  path directory /usr/sbin is in the config file
  adding /usr/share/man to manpath

  path directory /usr/bin is in the config file
  /usr/share/man is already in the manpath

  path directory /sbin is in the config file
  /usr/share/man is already in the manpath

  path directory /bin is in the config file
  /usr/share/man is already in the manpath

  path directory /usr/games is in the config file
  /usr/share/man is already in the manpath

  path directory /usr/local/games is not in the config file
  but does have a ../man, man, ../share/man, or share/man subdirectory
  /usr/local/man is already in the manpath

  path directory /snap/bin is not in the config file
  and doesn't have ../man, man, ../share/man, or share/man subdirectories

  adding mandatory man directories

  waarschuwing: /usr/man: Bestand of map bestaat niet
  /usr/share/man is already in the manpath
  /usr/local/share/man is already in the manpath
  add_nls_manpaths(): processing /usr/local/man:/usr/local/share/man:/usr/share/man
  checking for locale nl_BE.UTF-8
  manpath search path (with duplicates) = /usr/share/man/nl:/usr/local/man:/usr/local/share/man:/usr/share/man
  adding /usr/share/man/nl to manpathlist
  adding /usr/local/man to manpathlist
  adding /usr/local/share/man to manpathlist
  adding /usr/share/man to manpathlist
  Removing duplicate manpath entry /usr/local/share/man (2) -> /usr/local/man (1)
  final search path = /usr/share/man/nl:/usr/local/man:/usr/share/man
  ++priv_drop_count = 2
  man: ./debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1: Toegang geweigerd
  frank at panter:/mnt/packet/linux/bionic/source/fden-usenet/fden-usenet-3.2$ 

  
  In artful (version man-db 2.7.6.1-2):
  dh_installman --verbose
          install -p -m0644 ./debian/fden_clean_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_clean_nzb.1
          install -p -m0644 ./debian/fden_create_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_create_nzb.1
          install -p -m0644 ./debian/fden_delete_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_delete_nzb.1
          install -p -m0644 ./debian/fden_grab_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_grab_nzb.1
          install -p -m0644 ./debian/fden_start_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1
          man -l --recode UTF-8 ./debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1 > debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1.dh-new
          mv debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1.dh-new debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1
          man -l --recode UTF-8 ./debian/fden-usenet/usr/share/man/man1/fden_create_nzb.1 > debian/fden-usenet/usr/share/man/man1/fden_create_nzb.1.dh-new
          mv debian/fden-usenet/usr/share/man/man1/fden_create_nzb.1.dh-new debian/fden-usenet/usr/share/man/man1/fden_create_nzb.1
          man -l --recode UTF-8 ./debian/fden-usenet/usr/share/man/man1/fden_delete_nzb.1 > debian/fden-usenet/usr/share/man/man1/fden_delete_nzb.1.dh-new
          mv debian/fden-usenet/usr/share/man/man1/fden_delete_nzb.1.dh-new debian/fden-usenet/usr/share/man/man1/fden_delete_nzb.1
          man -l --recode UTF-8 ./debian/fden-usenet/usr/share/man/man1/fden_clean_nzb.1 > debian/fden-usenet/usr/share/man/man1/fden_clean_nzb.1.dh-new
          mv debian/fden-usenet/usr/share/man/man1/fden_clean_nzb.1.dh-new debian/fden-usenet/usr/share/man/man1/fden_clean_nzb.1
          man -l --recode UTF-8 ./debian/fden-usenet/usr/share/man/man1/fden_grab_nzb.1 > debian/fden-usenet/usr/share/man/man1/fden_grab_nzb.1.dh-new
          mv debian/fden-usenet/usr/share/man/man1/fden_grab_nzb.1.dh-new debian/fden-usenet/usr/share/man/man1/fden_grab_nzb.1
          chmod 0644 -- debian/fden-usenet/usr/share/man/man1/fden_start_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_create_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_delete_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_clean_nzb.1 debian/fden-usenet/usr/share/man/man1/fden_grab_nzb.1

  My release: lsb_release -rd
  Description:    Ubuntu 18.04 LTS
  Release:        18.04

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