Description
In the Linux kernel, the following vulnerability has been resolved: pwm: mediatek: Prevent divide-by-zero in pwm_mediatek_config() With CONFIG_COMPILE_TEST && !CONFIG_HAVE_CLK, pwm_mediatek_config() has a divide-by-zero in the following line: do_div(resolution, clk_get_rate(pc->clk_pwms[pwm->hwpwm])); due to the fact that the !CONFIG_HAVE_CLK version of clk_get_rate() returns zero. This is presumably just a theoretical problem: COMPILE_TEST overrides the dependency on RALINK which would select COMMON_CLK. Regardless it's a good idea to check for the error explicitly to avoid divide-by-zero. Fixes the following warning: drivers/pwm/pwm-mediatek.o: warning: objtool: .text: unexpected end of section [ukleinek: s/CONFIG_CLK/CONFIG_HAVE_CLK/]
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
caf065f8fd583b43a3f95d84c8a0a0d07597963b to < 8b9f60725d74b72c238e4437c957d0217746b506affectedcaf065f8fd583b43a3f95d84c8a0a0d07597963b to < e1206d8e1651c9f62e5640b69b14d925b1a0a00aaffectedcaf065f8fd583b43a3f95d84c8a0a0d07597963b to < e3cf0c38d3ce754ad63005102fcfeb0b7ff3290baffectedcaf065f8fd583b43a3f95d84c8a0a0d07597963b to < f3e9cf266c2c103cf071e15d7a17e2c699fff3c5affectedcaf065f8fd583b43a3f95d84c8a0a0d07597963b to < 8ddbec73ea2598d8414e8f7103241b55cf877010affectedcaf065f8fd583b43a3f95d84c8a0a0d07597963b to < 4cb15042b5f3ec0474e91cf379120cc597625dbbaffectedcaf065f8fd583b43a3f95d84c8a0a0d07597963b to < c343856ff2689ce0afef823592732fc178ef4aacaffectedcaf065f8fd583b43a3f95d84c8a0a0d07597963b to < 77fb96dbe350e8a5ae4965ff9f6e7049f3966a6baffectedcaf065f8fd583b43a3f95d84c8a0a0d07597963b to < 7ca59947b5fcf94e7ea4029d1bd0f7c41500a161affected
Linux Linux
Default version status: affected
4.12affected0 to < 4.12unaffected5.4.293 to ≤ 5.4.*unaffected5.10.237 to ≤ 5.10.*unaffected5.15.181 to ≤ 5.15.*unaffected6.1.135 to ≤ 6.1.*unaffected6.6.88 to ≤ 6.6.*unaffected6.12.24 to ≤ 6.12.*unaffected6.13.12 to ≤ 6.13.*unaffected6.14.3 to ≤ 6.14.*unaffected6.15 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/8b9f60725d74b72c238e4437c957d0217746b506 ↗
- https://git.kernel.org/stable/c/e1206d8e1651c9f62e5640b69b14d925b1a0a00a ↗
- https://git.kernel.org/stable/c/e3cf0c38d3ce754ad63005102fcfeb0b7ff3290b ↗
- https://git.kernel.org/stable/c/f3e9cf266c2c103cf071e15d7a17e2c699fff3c5 ↗
- https://git.kernel.org/stable/c/8ddbec73ea2598d8414e8f7103241b55cf877010 ↗
- https://git.kernel.org/stable/c/4cb15042b5f3ec0474e91cf379120cc597625dbb ↗
- https://git.kernel.org/stable/c/c343856ff2689ce0afef823592732fc178ef4aac ↗
- https://git.kernel.org/stable/c/77fb96dbe350e8a5ae4965ff9f6e7049f3966a6b ↗
- https://git.kernel.org/stable/c/7ca59947b5fcf94e7ea4029d1bd0f7c41500a161 ↗
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html ↗
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html ↗