| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2023-52882: clk: sunxi-ng: h6: Reparent CPUX during PLL CPUX rate change |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| clk: sunxi-ng: h6: Reparent CPUX during PLL CPUX rate change |
| |
| While PLL CPUX clock rate change when CPU is running from it works in |
| vast majority of cases, now and then it causes instability. This leads |
| to system crashes and other undefined behaviour. After a lot of testing |
| (30+ hours) while also doing a lot of frequency switches, we can't |
| observe any instability issues anymore when doing reparenting to stable |
| clock like 24 MHz oscillator. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52882 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.17 with commit 524353ea480b0094c16f2b5684ce7e0a23ab3685 and fixed in 5.4.276 with commit fe11826ffa200e1a7a826e745163cb2f47875f66 |
| Issue introduced in 4.17 with commit 524353ea480b0094c16f2b5684ce7e0a23ab3685 and fixed in 5.10.217 with commit bfc78b4628497eb6df09a6b5bba9dd31616ee175 |
| Issue introduced in 4.17 with commit 524353ea480b0094c16f2b5684ce7e0a23ab3685 and fixed in 5.15.159 with commit f1fa9a9816204ac4b118b2e613d3a7c981355019 |
| Issue introduced in 4.17 with commit 524353ea480b0094c16f2b5684ce7e0a23ab3685 and fixed in 6.1.91 with commit 70f64cb29014e4c4f1fabd3265feebd80590d069 |
| Issue introduced in 4.17 with commit 524353ea480b0094c16f2b5684ce7e0a23ab3685 and fixed in 6.6.31 with commit 0b82eb134d2942ecc669e2ab2be3f0a58d79428a |
| Issue introduced in 4.17 with commit 524353ea480b0094c16f2b5684ce7e0a23ab3685 and fixed in 6.8.10 with commit 9708e5081cfc4f085690294163389bcf82655f90 |
| Issue introduced in 4.17 with commit 524353ea480b0094c16f2b5684ce7e0a23ab3685 and fixed in 6.9 with commit 7e91ed763dc07437777bd012af7a2bd4493731ff |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2023-52882 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/clk/sunxi-ng/ccu-sun50i-h6.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/fe11826ffa200e1a7a826e745163cb2f47875f66 |
| https://git.kernel.org/stable/c/bfc78b4628497eb6df09a6b5bba9dd31616ee175 |
| https://git.kernel.org/stable/c/f1fa9a9816204ac4b118b2e613d3a7c981355019 |
| https://git.kernel.org/stable/c/70f64cb29014e4c4f1fabd3265feebd80590d069 |
| https://git.kernel.org/stable/c/0b82eb134d2942ecc669e2ab2be3f0a58d79428a |
| https://git.kernel.org/stable/c/9708e5081cfc4f085690294163389bcf82655f90 |
| https://git.kernel.org/stable/c/7e91ed763dc07437777bd012af7a2bd4493731ff |
