| 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-2024-56567: ad7780: fix division by zero in ad7780_write_raw() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ad7780: fix division by zero in ad7780_write_raw() |
| |
| In the ad7780_write_raw() , val2 can be zero, which might lead to a |
| division by zero error in DIV_ROUND_CLOSEST(). The ad7780_write_raw() |
| is based on iio_info's write_raw. While val is explicitly declared that |
| can be zero (in read mode), val2 is not specified to be non-zero. |
| |
| The Linux kernel CVE team has assigned CVE-2024-56567 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.2 with commit 9085daa4abcc3a1c19ae4eb00e609842ef28275a and fixed in 5.4.287 with commit 18fb33df1de83a014d7f784089f9b124facc157f |
| Issue introduced in 5.2 with commit 9085daa4abcc3a1c19ae4eb00e609842ef28275a and fixed in 5.10.231 with commit afc1e3c00b3f5f0b4f1bc3e974fb9803cb938a90 |
| Issue introduced in 5.2 with commit 9085daa4abcc3a1c19ae4eb00e609842ef28275a and fixed in 5.15.174 with commit 68e79b848196a0b0ec006009cc69da1f835d1ae8 |
| Issue introduced in 5.2 with commit 9085daa4abcc3a1c19ae4eb00e609842ef28275a and fixed in 6.1.120 with commit 022e13518ba6cc1b4fdd291f49e4f57b2d5718e0 |
| Issue introduced in 5.2 with commit 9085daa4abcc3a1c19ae4eb00e609842ef28275a and fixed in 6.6.64 with commit 7e3a8ea3d1ada7f707de5d9d504774b4191eab66 |
| Issue introduced in 5.2 with commit 9085daa4abcc3a1c19ae4eb00e609842ef28275a and fixed in 6.12.4 with commit f25a9f1df1f6738acf1fa05595fb6060a2c08ff1 |
| Issue introduced in 5.2 with commit 9085daa4abcc3a1c19ae4eb00e609842ef28275a and fixed in 6.13 with commit c174b53e95adf2eece2afc56cd9798374919f99a |
| |
| 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-2024-56567 |
| 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/iio/adc/ad7780.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/18fb33df1de83a014d7f784089f9b124facc157f |
| https://git.kernel.org/stable/c/afc1e3c00b3f5f0b4f1bc3e974fb9803cb938a90 |
| https://git.kernel.org/stable/c/68e79b848196a0b0ec006009cc69da1f835d1ae8 |
| https://git.kernel.org/stable/c/022e13518ba6cc1b4fdd291f49e4f57b2d5718e0 |
| https://git.kernel.org/stable/c/7e3a8ea3d1ada7f707de5d9d504774b4191eab66 |
| https://git.kernel.org/stable/c/f25a9f1df1f6738acf1fa05595fb6060a2c08ff1 |
| https://git.kernel.org/stable/c/c174b53e95adf2eece2afc56cd9798374919f99a |
