Fedora 44 Rsync Critical Use-After-Free Fix FEDORA-2026-75599531db
fedora
May 15, 2026
Fixing various bugs from Upstream
Summary
Rsync uses a reliable algorithm to bring remote and host files into
sync very quickly. Rsync is fast because it just sends the differences
in the files over the network instead of sending the complete
files. Rsync is often used as a very powerful mirroring process or
just as a more capable replacement for the rcp command. A technical
report which describes the rsync algorithm is included in this
package.
Update Information:
Fixing various bugs from Upstream. I did not do a rebase since the Upstream stopped supporting the rsync-patches repo. I accepted this change in Rawhide but it changes the usage of one option that is no longer available in rsync. This is why I avoided the rebase in older stable branches.
Topics Covered
Change Log
* Wed May 6 2026 Michal Ruprich
References
[ 1 ] Bug #2339145 - failed verification -- update discarded - regression from CVE fixes
https://bugzilla.redhat.com/show_bug.cgi?id=2339145
[ 2 ] Bug #2417003 - Bad time in rsync daemon log
https://bugzilla.redhat.com/show_bug.cgi?id=2417003
[ 3 ] Bug #2459115 - CVE-2026-41035 rsync: Rsync: Use-after-free vulnerability in extended attribute handling [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2459115
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-75599531db' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
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Severity
important
Lowest
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Critical
Name: rsync
Product: Fedora 44
Version: 3.4.1
Release: 7.fc44
Summary: A program for synchronizing files over a network
Topics Covered
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