| 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-2024-50233: staging: iio: frequency: ad9832: fix division by zero in ad9832_calc_freqreg() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| staging: iio: frequency: ad9832: fix division by zero in ad9832_calc_freqreg() |
| |
| In the ad9832_write_frequency() function, clk_get_rate() might return 0. |
| This can lead to a division by zero when calling ad9832_calc_freqreg(). |
| The check if (fout > (clk_get_rate(st->mclk) / 2)) does not protect |
| against the case when fout is 0. The ad9832_write_frequency() function |
| is called from ad9832_write(), and fout is derived from a text buffer, |
| which can contain any value. |
| |
| The Linux kernel CVE team has assigned CVE-2024-50233 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 2.6.39 with commit ea707584bac187c9c6c64c4eacd1c09bcc08f37b and fixed in 5.4.285 with commit fcd6b59f7a774558e2525251c68aa37aff748e55 |
| Issue introduced in 2.6.39 with commit ea707584bac187c9c6c64c4eacd1c09bcc08f37b and fixed in 5.10.229 with commit 442f786c5bff8cfd756ebdeaa4aadbf05c22aa5a |
| Issue introduced in 2.6.39 with commit ea707584bac187c9c6c64c4eacd1c09bcc08f37b and fixed in 5.15.171 with commit 2f39548f45693d86e950647012a214da6917dc9f |
| Issue introduced in 2.6.39 with commit ea707584bac187c9c6c64c4eacd1c09bcc08f37b and fixed in 6.1.116 with commit ccbc10647aafe2b7506edb4b10e19c6c2416c162 |
| Issue introduced in 2.6.39 with commit ea707584bac187c9c6c64c4eacd1c09bcc08f37b and fixed in 6.6.60 with commit adfbc08b94e7df08b9ed5fa26b969cc1b54c84ec |
| Issue introduced in 2.6.39 with commit ea707584bac187c9c6c64c4eacd1c09bcc08f37b and fixed in 6.11.7 with commit dd9e1cf619c945f320e686dcaf13e37ef0b05fdd |
| Issue introduced in 2.6.39 with commit ea707584bac187c9c6c64c4eacd1c09bcc08f37b and fixed in 6.12 with commit 6bd301819f8f69331a55ae2336c8b111fc933f3d |
| |
| 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-2024-50233 |
| 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/staging/iio/frequency/ad9832.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/fcd6b59f7a774558e2525251c68aa37aff748e55 |
| https://git.kernel.org/stable/c/442f786c5bff8cfd756ebdeaa4aadbf05c22aa5a |
| https://git.kernel.org/stable/c/2f39548f45693d86e950647012a214da6917dc9f |
| https://git.kernel.org/stable/c/ccbc10647aafe2b7506edb4b10e19c6c2416c162 |
| https://git.kernel.org/stable/c/adfbc08b94e7df08b9ed5fa26b969cc1b54c84ec |
| https://git.kernel.org/stable/c/dd9e1cf619c945f320e686dcaf13e37ef0b05fdd |
| https://git.kernel.org/stable/c/6bd301819f8f69331a55ae2336c8b111fc933f3d |
