# CVE-2024-49985: linux: In the Linux kernel, the following vulnerability has been resolved: i2c: stm32f7: Do not prepare/unprepare clock dur... CVE-2024-49985 is fixed in 44 products on 1 platform, first by DEBIAN-CVE-2024-49985, released October 21, 2024. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2024-49985 - Priority: Routine - CVSS: 5.5 (medium) - EPSS: 0.0020 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Oct 21, 2024 ## Description In the Linux kernel, the following vulnerability has been resolved: i2c: stm32f7: Do not prepare/unprepare clock during runtime suspend/resume In case there is any sort of clock controller attached to this I2C bus controller, for example Versaclock or even an AIC32x4 I2C codec, then an I2C transfer triggered from the clock controller clk_ops .prepare callback may trigger a deadlock on drivers/clk/clk.c prepare_lock mutex. This is because the clock controller first grabs the prepare_lock mutex and then performs the prepare operation, including its I2C access. The I2C access resumes this I2C bus controller via .runtime_resume callback, which calls clk_prepare_enable(), which attempts to grab the prepare_lock mutex again and deadlocks. Since the clock are already prepared since probe() and unprepared in remove(), use simple clk_enable()/clk_disable() calls to enable and disable the clock on runtime suspend and resume, to avoid hitting the prepare_lock mutex. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | bpftool ol 8 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | bpftool ol 9 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | dtb-aarch64 opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-64kb opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-64kb sles 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-azure opensuse-leap 15.6 | 6.4.0-150600.8.17.2 | [SUSE-SU-2024:3984-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3984-1.md) | Nov 13, 2024 | | Linux | kernel-azure sles 15.6 | 6.4.0-150600.8.17.2 | [SUSE-SU-2024:3984-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3984-1.md) | Nov 13, 2024 | | Linux | kernel-coco sles 15.6 | 6.4.0-15061.9.coco15sp6.1 | [SUSE-SU-2024:4387-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4387-1.md) | Dec 19, 2024 | | Linux | kernel-coco_debug sles 15.6 | 6.4.0-15061.9.coco15sp6.1 | [SUSE-SU-2024:4387-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4387-1.md) | Dec 19, 2024 | | Linux | kernel-debug opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-default opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-default sles 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-default-base opensuse-leap 15.6 | 6.4.0-150600.23.30.1.150600.12.12.6 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-default-base sles 15.6 | 6.4.0-150600.23.30.1.150600.12.12.6 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-docs opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-docs sles 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-kvmsmall opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-livepatch-SLE15-SP6-RT_Update_5 sles 15.6 | 1-150600.1.3.1 | [SUSE-SU-2024:3986-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3986-1.md) | Nov 13, 2024 | | Linux | kernel-livepatch-SLE15-SP6_Update_6 sles 15.6 | 1-150600.13.3.5 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-obs-build opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-obs-build sles 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-obs-qa opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-rt opensuse-leap 15.6 | 6.4.0-150600.10.17.1 | [SUSE-SU-2024:3986-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3986-1.md) | Nov 13, 2024 | | Linux | kernel-rt_debug opensuse-leap 15.6 | 6.4.0-150600.10.17.1 | [SUSE-SU-2024:3986-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3986-1.md) | Nov 13, 2024 | | Linux | kernel-source opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-source sles 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-source-azure opensuse-leap 15.6 | 6.4.0-150600.8.17.1 | [SUSE-SU-2024:3984-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3984-1.md) | Nov 13, 2024 | | Linux | kernel-source-azure sles 15.6 | 6.4.0-150600.8.17.1 | [SUSE-SU-2024:3984-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3984-1.md) | Nov 13, 2024 | | Linux | kernel-source-coco sles 15.6 | 6.4.0-15061.9.coco15sp6.1 | [SUSE-SU-2024:4387-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4387-1.md) | Dec 19, 2024 | | Linux | kernel-source-rt opensuse-leap 15.6 | 6.4.0-150600.10.17.1 | [SUSE-SU-2024:3986-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3986-1.md) | Nov 13, 2024 | | Linux | kernel-syms opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-syms sles 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-syms-azure opensuse-leap 15.6 | 6.4.0-150600.8.17.1 | [SUSE-SU-2024:3984-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3984-1.md) | Nov 13, 2024 | | Linux | kernel-syms-azure sles 15.6 | 6.4.0-150600.8.17.1 | [SUSE-SU-2024:3984-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3984-1.md) | Nov 13, 2024 | | Linux | kernel-syms-coco sles 15.6 | 6.4.0-15061.9.coco15sp6.1 | [SUSE-SU-2024:4387-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4387-1.md) | Dec 19, 2024 | | Linux | kernel-syms-rt opensuse-leap 15.6 | 6.4.0-150600.10.17.1 | [SUSE-SU-2024:3986-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3986-1.md) | Nov 13, 2024 | | Linux | kernel-uek ol 8 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek ol 8 | 0:5.4.17-2136.338.4.1.el8uek | [ELSA-2024-12884](https://patchblox.com/security/data/fix/linux/elsa-2024-12884.md) | Dec 16, 2024 | | Linux | kernel-uek ol 9 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-container ol 8 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-container ol 8 | 0:5.4.17-2136.338.4.1.el8uek | [ELSA-2024-12884](https://patchblox.com/security/data/fix/linux/elsa-2024-12884.md) | Dec 16, 2024 | | Linux | kernel-uek-container ol 9 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-container-debug ol 8 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-container-debug ol 8 | 0:5.4.17-2136.338.4.1.el8uek | [ELSA-2024-12884](https://patchblox.com/security/data/fix/linux/elsa-2024-12884.md) | Dec 16, 2024 | | Linux | kernel-uek-container-debug ol 9 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-core ol 8 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-core ol 9 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-debug ol 8 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-debug ol 8 | 0:5.4.17-2136.338.4.1.el8uek | [ELSA-2024-12884](https://patchblox.com/security/data/fix/linux/elsa-2024-12884.md) | Dec 16, 2024 | | Linux | kernel-uek-debug ol 9 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-debug-core ol 8 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-debug-core ol 9 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-debug-devel ol 8 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-debug-devel ol 8 | 0:5.4.17-2136.338.4.1.el8uek | [ELSA-2024-12884](https://patchblox.com/security/data/fix/linux/elsa-2024-12884.md) | Dec 16, 2024 | | Linux | kernel-uek-debug-devel ol 9 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-debug-modules ol 8 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-debug-modules ol 9 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-debug-modules-extra ol 8 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-debug-modules-extra ol 9 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-devel ol 8 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-devel ol 8 | 0:5.4.17-2136.338.4.1.el8uek | [ELSA-2024-12884](https://patchblox.com/security/data/fix/linux/elsa-2024-12884.md) | Dec 16, 2024 | | Linux | kernel-uek-devel ol 9 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-doc ol 8 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-doc ol 8 | 0:5.4.17-2136.338.4.1.el8uek | [ELSA-2024-12884](https://patchblox.com/security/data/fix/linux/elsa-2024-12884.md) | Dec 16, 2024 | | Linux | kernel-uek-doc ol 9 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-modules ol 8 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-modules ol 9 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-modules-extra ol 8 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-modules-extra ol 9 | 0:5.15.0-303.171.5.2.el9uek | [ELSA-2024-12887](https://patchblox.com/security/data/fix/linux/elsa-2024-12887.md) | Dec 18, 2024 | | Linux | kernel-uek-tools ol 8 | 0:5.4.17-2136.338.4.1.el7uek | [ELSA-2024-12884](https://patchblox.com/security/data/fix/linux/elsa-2024-12884.md) | Dec 16, 2024 | | Linux | kernel-uek-tools-libs ol 8 | 0:5.4.17-2136.338.4.1.el7uek | [ELSA-2024-12884](https://patchblox.com/security/data/fix/linux/elsa-2024-12884.md) | Dec 16, 2024 | | Linux | kernel-zfcpdump opensuse-leap 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | kernel-zfcpdump sles 15.6 | 6.4.0-150600.23.30.1 | [SUSE-SU-2024:4318-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-4318-1.md) | Dec 13, 2024 | | Linux | linux Debian 12.15 (bookworm) | 6.1.115-1 | [DEBIAN-CVE-2024-49985](https://patchblox.com/security/data/fix/linux/debian-cve-2024-49985.md) | Oct 21, 2024 | | Linux | linux Debian 13.5 (trixie) | 6.11.4-1 | [DEBIAN-CVE-2024-49985](https://patchblox.com/security/data/fix/linux/debian-cve-2024-49985.md) | Oct 21, 2024 | | Linux | linux Debian 14 | 6.11.4-1 | [DEBIAN-CVE-2024-49985](https://patchblox.com/security/data/fix/linux/debian-cve-2024-49985.md) | Oct 21, 2024 | | Linux | perf ol 8 | 0:5.4.17-2136.338.4.1.el7uek | [ELSA-2024-12884](https://patchblox.com/security/data/fix/linux/elsa-2024-12884.md) | Dec 16, 2024 | | Linux | python-perf ol 8 | 0:5.4.17-2136.338.4.1.el7uek | [ELSA-2024-12884](https://patchblox.com/security/data/fix/linux/elsa-2024-12884.md) | Dec 16, 2024 | --- Data as of 2026-11-08T13:06:02Z UTC. 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