#994542 glibc: Regressions in lchmod and fchmodat when /proc is not mounted

Package:
src:glibc
Source:
glibc
Submitter:
Salvatore Bonaccorso
Date:
2021-09-17 15:27:05 UTC
Severity:
important
Tags:
#994542#5
Date:
2021-09-17 13:29:26 UTC
From:
To:
Source: glibc
Version: 2.32-3
Severity: important
Tags: upstream
Forwarded: https://sourceware.org/bugzilla/show_bug.cgi?id=26401
X-Debbugs-Cc: carnil@debian.org
Control: affects -1 rsync
Control: clone -1 -2
Control: reassing -2 src:rsync 3.2.3-6
Control: retitle -2 rsync: Workaround glibc bug BZ#26401 (regression in lchmod and fchmodat when /proc is not mountet)
Control: forwarded -2 https://github.com/WayneD/rsync/issues/109

Hi

There is a regression in lchmod and fchmodat when /proc is not
mounted, the upstream report about it is at [1] and affects as well
e.g. rsync[2]. It relates to #951191.

 [1] https://sourceware.org/bugzilla/show_bug.cgi?id=26401
 [2] https://github.com/WayneD/rsync/issues/109

For rsync the following where applied:

https://github.com/WayneD/rsync/commit/85b8dc8abaca96fc3ea7421e09101b6ac41b6718
https://github.com/WayneD/rsync/commit/9dd62525f3b98d692e031f22c02be8f775966503

Regards,
Salvatore
#994542#14
Date:
2021-09-17 13:38:50 UTC
From:
To:
Hi

FWIW, the autopkgtest regresssons are maybe related to this. I
encountered it while perfoming a linux build in a chroot where /proc
was not mounted.

Tested cherry-picking the workaround on top of 3.2.3-6.

Regards,
Salvatore
#994542#21
Date:
2021-09-17 15:25:52 UTC
From:
To:
Hi

Apoligies I mixed up the cloned bug while replying for the rsync
workaround. Fixed up now as well the broken retitlings in the BTS.

994542 for glibc
994543 accordingly for rsync.

Regards,
Salvatore