# CVE-2024-34397: glib2: This update for glib2 fixes the following issues: Update to version 2.78.6: + Fix a regression with IBus caused by... CVE-2024-34397 is fixed in 21 products on 1 platform, first by gir1.2-girepository-3.0 2.80.0-6ubuntu3.1, released May 6, 2024. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2024-34397 - Priority: High - CVSS: 7.0 (Medium) - EPSS: 0.0076 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: May 6, 2024 ## Description This update for glib2 fixes the following issues: Update to version 2.78.6: + Fix a regression with IBus caused by the fix for CVE-2024-34397 Changes in version 2.78.5: + Fix CVE-2024-34397: GDBus signal subscriptions for well-known names are vulnerable to unicast spoofing. (bsc#1224044) + Bugs fixed: - gvfs-udisks2-volume-monitor SIGSEGV in g_content_type_guess_for_tree() due to filename with bad encoding - gcontenttype: Make filename valid utf-8 string before processing. - gdbusconnection: Don't deliver signals if the sender doesn't match. Changes in version 2.78.4: + Bugs fixed: - Fix generated RST anchors for methods, signals and properties. - docs/reference: depend on a native gtk-doc. - gobject_gdb.py: Do not break bt on optimized build. - gregex: clean up usage of _GRegex.jit_status. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | gir1.2-girepository-3.0 Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.1 | [gir1.2-girepository-3.0 2.80.0-6ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-girepository-3.0-2.80.0-6ubuntu3.1.md) | May 6, 2024 | | Linux | gir1.2-girepository-3.0 Ubuntu 24.10 (oracular) | 2.80.1-1 | [gir1.2-girepository-3.0 2.80.1-1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-gir1.2-girepository-3.0-2.80.1-1.md) | May 7, 2024 | | Linux | gir1.2-girepository-3.0 Ubuntu 25.04 (plucky) | 2.80.1-1 | [gir1.2-girepository-3.0 2.80.1-1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-gir1.2-girepository-3.0-2.80.1-1.md) | May 7, 2024 | | Linux | gir1.2-glib-2.0 Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.1 | [gir1.2-glib-2.0 2.80.0-6ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-glib-2.0-2.80.0-6ubuntu3.1.md) | May 6, 2024 | | Linux | gir1.2-glib-2.0 Ubuntu 24.10 (oracular) | 2.80.1-1 | [gir1.2-glib-2.0 2.80.1-1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-gir1.2-glib-2.0-2.80.1-1.md) | May 7, 2024 | | Linux | gir1.2-glib-2.0 Ubuntu 25.04 (plucky) | 2.80.1-1 | [gir1.2-glib-2.0 2.80.1-1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-gir1.2-glib-2.0-2.80.1-1.md) | May 7, 2024 | | Linux | glib2 RHEL 8 | 0:2.56.4-166.el8_10 | [RHSA-2025:11327](https://patchblox.com/security/data/fix/linux/rhsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2 RHEL 9 | 0:2.68.4-14.el9_4.1 | [RHSA-2024:6464](https://patchblox.com/security/data/fix/linux/rhsa-2024-6464.md) | Sep 9, 2024 | | Linux | glib2 almalinux 8 | 2.56.4-166.el8_10 | [ALSA-2025:11327](https://patchblox.com/security/data/fix/linux/alsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2 almalinux 9 | 2.68.4-14.el9_4.1 | [ALSA-2024:6464](https://patchblox.com/security/data/fix/linux/alsa-2024-6464.md) | Sep 9, 2024 | | Linux | glib2 ol 8 | 0:2.56.4-166.el8_10 | [ELSA-2025-11327](https://patchblox.com/security/data/fix/linux/elsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2 ol 9 | 0:2.68.4-14.el9_4.1 | [ELSA-2024-6464](https://patchblox.com/security/data/fix/linux/elsa-2024-6464.md) | Sep 9, 2024 | | Linux | glib2 opensuse-leap 15.6 | 2.78.6-150600.4.3.1 | [SUSE-SU-2024:1950-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-1950-1.md) | Jun 7, 2024 | | Linux | glib2 rocky 8 | 0:2.56.4-166.el8_10 | [RLSA-2025:11327](https://patchblox.com/security/data/fix/linux/rlsa-2025-11327.md) | Jul 29, 2025 | | Linux | glib2 rocky 9 | 0:2.68.4-14.el9_4.1 | [RLSA-2024:6464](https://patchblox.com/security/data/fix/linux/rlsa-2024-6464.md) | Sep 17, 2024 | | Linux | glib2 sles 15.6 | 2.78.6-150600.4.3.1 | [SUSE-SU-2024:1950-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-1950-1.md) | Jun 7, 2024 | | Linux | glib2-branding-SLE opensuse-leap 15.6 | 15-150600.35.2.1 | [SUSE-SU-2024:1950-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-1950-1.md) | Jun 7, 2024 | | Linux | glib2-branding-SLE sles 15.6 | 15-150600.35.2.1 | [SUSE-SU-2024:1950-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-1950-1.md) | Jun 7, 2024 | | Linux | glib2-devel RHEL 8 | 0:2.56.4-166.el8_10 | [RHSA-2025:11327](https://patchblox.com/security/data/fix/linux/rhsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2-devel RHEL 9 | 0:2.68.4-14.el9_4.1 | [RHSA-2024:6464](https://patchblox.com/security/data/fix/linux/rhsa-2024-6464.md) | Sep 9, 2024 | | Linux | glib2-devel almalinux 8 | 2.56.4-166.el8_10 | [ALSA-2025:11327](https://patchblox.com/security/data/fix/linux/alsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2-devel almalinux 9 | 2.68.4-14.el9_4.1 | [ALSA-2024:6464](https://patchblox.com/security/data/fix/linux/alsa-2024-6464.md) | Sep 9, 2024 | | Linux | glib2-devel ol 8 | 0:2.56.4-166.el8_10 | [ELSA-2025-11327](https://patchblox.com/security/data/fix/linux/elsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2-devel ol 9 | 0:2.68.4-14.el9_4.1 | [ELSA-2024-6464](https://patchblox.com/security/data/fix/linux/elsa-2024-6464.md) | Sep 9, 2024 | | Linux | glib2-doc RHEL 8 | 0:2.56.4-166.el8_10 | [RHSA-2025:11327](https://patchblox.com/security/data/fix/linux/rhsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2-doc RHEL 9 | 0:2.68.4-14.el9_4.1 | [RHSA-2024:6464](https://patchblox.com/security/data/fix/linux/rhsa-2024-6464.md) | Sep 9, 2024 | | Linux | glib2-doc almalinux 8 | 2.56.4-166.el8_10 | [ALSA-2025:11327](https://patchblox.com/security/data/fix/linux/alsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2-doc almalinux 9 | 2.68.4-14.el9_4.1 | [ALSA-2024:6464](https://patchblox.com/security/data/fix/linux/alsa-2024-6464.md) | Sep 9, 2024 | | Linux | glib2-doc ol 8 | 0:2.56.4-166.el8_10 | [ELSA-2025-11327](https://patchblox.com/security/data/fix/linux/elsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2-doc ol 9 | 0:2.68.4-14.el9_4.1 | [ELSA-2024-6464](https://patchblox.com/security/data/fix/linux/elsa-2024-6464.md) | Sep 9, 2024 | | Linux | glib2-doc opensuse-leap 15.6 | 2.78.6-150600.4.3.1 | [SUSE-SU-2024:1950-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-1950-1.md) | Jun 7, 2024 | | Linux | glib2-fam RHEL 8 | 0:2.56.4-166.el8_10 | [RHSA-2025:11327](https://patchblox.com/security/data/fix/linux/rhsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2-fam almalinux 8 | 2.56.4-166.el8_10 | [ALSA-2025:11327](https://patchblox.com/security/data/fix/linux/alsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2-fam ol 8 | 0:2.56.4-166.el8_10 | [ELSA-2025-11327](https://patchblox.com/security/data/fix/linux/elsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2-static RHEL 8 | 0:2.56.4-166.el8_10 | [RHSA-2025:11327](https://patchblox.com/security/data/fix/linux/rhsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2-static RHEL 9 | 0:2.68.4-14.el9_4.1 | [RHSA-2024:6464](https://patchblox.com/security/data/fix/linux/rhsa-2024-6464.md) | Sep 9, 2024 | | Linux | glib2-static almalinux 8 | 2.56.4-166.el8_10 | [ALSA-2025:11327](https://patchblox.com/security/data/fix/linux/alsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2-static almalinux 9 | 2.68.4-14.el9_4.1 | [ALSA-2024:6464](https://patchblox.com/security/data/fix/linux/alsa-2024-6464.md) | Sep 9, 2024 | | Linux | glib2-static ol 8 | 0:2.56.4-166.el8_10 | [ELSA-2025-11327](https://patchblox.com/security/data/fix/linux/elsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2-static ol 9 | 0:2.68.4-14.el9_4.1 | [ELSA-2024-6464](https://patchblox.com/security/data/fix/linux/elsa-2024-6464.md) | Sep 9, 2024 | | Linux | glib2-tests RHEL 8 | 0:2.56.4-166.el8_10 | [RHSA-2025:11327](https://patchblox.com/security/data/fix/linux/rhsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2-tests RHEL 9 | 0:2.68.4-14.el9_4.1 | [RHSA-2024:6464](https://patchblox.com/security/data/fix/linux/rhsa-2024-6464.md) | Sep 9, 2024 | | Linux | glib2-tests almalinux 8 | 2.56.4-166.el8_10 | [ALSA-2025:11327](https://patchblox.com/security/data/fix/linux/alsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2-tests almalinux 9 | 2.68.4-14.el9_4.1 | [ALSA-2024:6464](https://patchblox.com/security/data/fix/linux/alsa-2024-6464.md) | Sep 9, 2024 | | Linux | glib2-tests ol 8 | 0:2.56.4-166.el8_10 | [ELSA-2025-11327](https://patchblox.com/security/data/fix/linux/elsa-2025-11327.md) | Jul 16, 2025 | | Linux | glib2-tests ol 9 | 0:2.68.4-14.el9_4.1 | [ELSA-2024-6464](https://patchblox.com/security/data/fix/linux/elsa-2024-6464.md) | Sep 9, 2024 | | Linux | glib2.0 Debian 11.6 (bullseye) | 2.66.8-1+deb11u2 | [DSA-5682-1](https://patchblox.com/security/data/fix/linux/dsa-5682-1.md) | May 7, 2024 | | Linux | glib2.0 Debian 12.15 (bookworm) | 2.74.6-2+deb12u1 | [DSA-5682-1](https://patchblox.com/security/data/fix/linux/dsa-5682-1.md) | May 7, 2024 | | Linux | glib2.0 Debian 13.5 (trixie) | 2.80.0-10 | [DEBIAN-CVE-2024-34397](https://patchblox.com/security/data/fix/linux/debian-cve-2024-34397.md) | May 7, 2024 | | Linux | glib2.0 Debian 14 | 2.80.0-10 | [DEBIAN-CVE-2024-34397](https://patchblox.com/security/data/fix/linux/debian-cve-2024-34397.md) | May 7, 2024 | | Linux | libgirepository-2.0-0 Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.1 | [libgirepository-2.0-0 2.80.0-6ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libgirepository-2.0-0-2.80.0-6ubuntu3.1.md) | May 6, 2024 | | Linux | libgirepository-2.0-0 Ubuntu 24.10 (oracular) | 2.80.1-1 | [libgirepository-2.0-0 2.80.1-1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libgirepository-2.0-0-2.80.1-1.md) | May 7, 2024 | | Linux | libgirepository-2.0-0 Ubuntu 25.04 (plucky) | 2.80.1-1 | [libgirepository-2.0-0 2.80.1-1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libgirepository-2.0-0-2.80.1-1.md) | May 7, 2024 | | Linux | libglib2.0-0 Ubuntu 20.04 LTS (focal) | 2.64.6-1~ubuntu20.04.7 | [libglib2.0-0 2.64.6-1~ubuntu20.04.7](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libglib2.0-0-2.64.6-1-ubuntu20.04.7.md) | May 6, 2024 | | Linux | libglib2.0-0 Ubuntu 22.04.1 LTS (jammy) | 2.72.4-0ubuntu2.3 | [libglib2.0-0 2.72.4-0ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libglib2.0-0-2.72.4-0ubuntu2.3.md) | May 6, 2024 | | Linux | libglib2.0-0t64 Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.1 | [libglib2.0-0t64 2.80.0-6ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libglib2.0-0t64-2.80.0-6ubuntu3.1.md) | May 6, 2024 | | Linux | libglib2.0-0t64 Ubuntu 24.10 (oracular) | 2.80.1-1 | [libglib2.0-0t64 2.80.1-1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libglib2.0-0t64-2.80.1-1.md) | May 7, 2024 | | Linux | libglib2.0-0t64 Ubuntu 25.04 (plucky) | 2.80.1-1 | [libglib2.0-0t64 2.80.1-1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libglib2.0-0t64-2.80.1-1.md) | May 7, 2024 | | Linux | libglib2.0-bin Ubuntu 20.04 LTS (focal) | 2.64.6-1~ubuntu20.04.7 | [libglib2.0-bin 2.64.6-1~ubuntu20.04.7](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libglib2.0-bin-2.64.6-1-ubuntu20.04.7.md) | May 6, 2024 | | Linux | libglib2.0-bin Ubuntu 22.04.1 LTS (jammy) | 2.72.4-0ubuntu2.3 | [libglib2.0-bin 2.72.4-0ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libglib2.0-bin-2.72.4-0ubuntu2.3.md) | May 6, 2024 | | Linux | libglib2.0-bin Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.1 | [libglib2.0-bin 2.80.0-6ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libglib2.0-bin-2.80.0-6ubuntu3.1.md) | May 6, 2024 | | Linux | libglib2.0-bin Ubuntu 24.10 (oracular) | 2.80.1-1 | [libglib2.0-bin 2.80.1-1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libglib2.0-bin-2.80.1-1.md) | May 7, 2024 | | Linux | libglib2.0-bin Ubuntu 25.04 (plucky) | 2.80.1-1 | [libglib2.0-bin 2.80.1-1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libglib2.0-bin-2.80.1-1.md) | May 7, 2024 | | Linux | libglib2.0-data Ubuntu 20.04 LTS (focal) | 2.64.6-1~ubuntu20.04.7 | [libglib2.0-data 2.64.6-1~ubuntu20.04.7](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libglib2.0-data-2.64.6-1-ubuntu20.04.7.md) | May 6, 2024 | | Linux | libglib2.0-data Ubuntu 22.04.1 LTS (jammy) | 2.72.4-0ubuntu2.3 | [libglib2.0-data 2.72.4-0ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libglib2.0-data-2.72.4-0ubuntu2.3.md) | May 6, 2024 | | Linux | libglib2.0-data Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.1 | [libglib2.0-data 2.80.0-6ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libglib2.0-data-2.80.0-6ubuntu3.1.md) | May 6, 2024 | | Linux | libglib2.0-data Ubuntu 24.10 (oracular) | 2.80.1-1 | [libglib2.0-data 2.80.1-1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libglib2.0-data-2.80.1-1.md) | May 7, 2024 | | Linux | libglib2.0-data Ubuntu 25.04 (plucky) | 2.80.1-1 | [libglib2.0-data 2.80.1-1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libglib2.0-data-2.80.1-1.md) | May 7, 2024 | | Linux | libglib2.0-dev-bin Ubuntu 20.04 LTS (focal) | 2.64.6-1~ubuntu20.04.7 | [libglib2.0-dev-bin 2.64.6-1~ubuntu20.04.7](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libglib2.0-dev-bin-2.64.6-1-ubuntu20.04.7.md) | May 6, 2024 | | Linux | libglib2.0-dev-bin Ubuntu 22.04.1 LTS (jammy) | 2.72.4-0ubuntu2.3 | [libglib2.0-dev-bin 2.72.4-0ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libglib2.0-dev-bin-2.72.4-0ubuntu2.3.md) | May 6, 2024 | | Linux | libglib2.0-dev-bin Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.1 | [libglib2.0-dev-bin 2.80.0-6ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libglib2.0-dev-bin-2.80.0-6ubuntu3.1.md) | May 6, 2024 | | Linux | libglib2.0-tests Ubuntu 20.04 LTS (focal) | 2.64.6-1~ubuntu20.04.7 | [libglib2.0-tests 2.64.6-1~ubuntu20.04.7](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libglib2.0-tests-2.64.6-1-ubuntu20.04.7.md) | May 6, 2024 | | Linux | libglib2.0-tests Ubuntu 22.04.1 LTS (jammy) | 2.72.4-0ubuntu2.3 | [libglib2.0-tests 2.72.4-0ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libglib2.0-tests-2.72.4-0ubuntu2.3.md) | May 6, 2024 | | Linux | libglib2.0-tests Ubuntu 24.04.5 LTS (noble) | 2.80.0-6ubuntu3.1 | [libglib2.0-tests 2.80.0-6ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libglib2.0-tests-2.80.0-6ubuntu3.1.md) | May 6, 2024 | | Linux | libglib2.0-tests Ubuntu 24.10 (oracular) | 2.80.1-1 | [libglib2.0-tests 2.80.1-1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libglib2.0-tests-2.80.1-1.md) | May 7, 2024 | | Linux | libglib2.0-tests Ubuntu 25.04 (plucky) | 2.80.1-1 | [libglib2.0-tests 2.80.1-1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libglib2.0-tests-2.80.1-1.md) | May 7, 2024 | | Linux | mingw32-glib2 RHEL 9 | 0:2.78.6-1.el9 | [RHSA-2024:9442](https://patchblox.com/security/data/fix/linux/rhsa-2024-9442.md) | Nov 12, 2024 | | Linux | mingw32-glib2 almalinux 9 | 2.78.6-1.el9 | [ALSA-2024:9442](https://patchblox.com/security/data/fix/linux/alsa-2024-9442.md) | Nov 12, 2024 | | Linux | mingw32-glib2 ol 9 | 0:2.78.6-1.el9 | [ELSA-2024-9442](https://patchblox.com/security/data/fix/linux/elsa-2024-9442.md) | Nov 14, 2024 | | Linux | mingw32-glib2-static RHEL 9 | 0:2.78.6-1.el9 | [RHSA-2024:9442](https://patchblox.com/security/data/fix/linux/rhsa-2024-9442.md) | Nov 12, 2024 | | Linux | mingw32-glib2-static almalinux 9 | 2.78.6-1.el9 | [ALSA-2024:9442](https://patchblox.com/security/data/fix/linux/alsa-2024-9442.md) | Nov 12, 2024 | | Linux | mingw32-glib2-static ol 9 | 0:2.78.6-1.el9 | [ELSA-2024-9442](https://patchblox.com/security/data/fix/linux/elsa-2024-9442.md) | Nov 14, 2024 | | Linux | mingw64-glib2 RHEL 9 | 0:2.78.6-1.el9 | [RHSA-2024:9442](https://patchblox.com/security/data/fix/linux/rhsa-2024-9442.md) | Nov 12, 2024 | | Linux | mingw64-glib2 almalinux 9 | 2.78.6-1.el9 | [ALSA-2024:9442](https://patchblox.com/security/data/fix/linux/alsa-2024-9442.md) | Nov 12, 2024 | | Linux | mingw64-glib2 ol 9 | 0:2.78.6-1.el9 | [ELSA-2024-9442](https://patchblox.com/security/data/fix/linux/elsa-2024-9442.md) | Nov 14, 2024 | | Linux | mingw64-glib2-static RHEL 9 | 0:2.78.6-1.el9 | [RHSA-2024:9442](https://patchblox.com/security/data/fix/linux/rhsa-2024-9442.md) | Nov 12, 2024 | | Linux | mingw64-glib2-static almalinux 9 | 2.78.6-1.el9 | [ALSA-2024:9442](https://patchblox.com/security/data/fix/linux/alsa-2024-9442.md) | Nov 12, 2024 | | Linux | mingw64-glib2-static ol 9 | 0:2.78.6-1.el9 | [ELSA-2024-9442](https://patchblox.com/security/data/fix/linux/elsa-2024-9442.md) | Nov 14, 2024 | --- Data as of 2026-11-08T00:53:09Z UTC. 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