Description
In the Linux kernel, the following vulnerability has been resolved: watchdog: cpu5wdt.c: Fix use-after-free bug caused by cpu5wdt_trigger When the cpu5wdt module is removing, the origin code uses del_timer() to de-activate the timer. If the timer handler is running, del_timer() could not stop it and will return directly. If the port region is released by release_region() and then the timer handler cpu5wdt_trigger() calls outb() to write into the region that is released, the use-after-free bug will happen. Change del_timer() to timer_shutdown_sync() in order that the timer handler could be finished before the port region is released.
Details
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| linux | — | 6.8.0-44.44 |
| linux-allwinner-5.19 | — | — |
| linux-aws | — | 6.8.0-1015.16 |
| linux-aws-5.0 | — | — |
| linux-aws-5.11 | — | — |
| linux-aws-5.13 | — | — |
| linux-aws-5.15 | — | 5.15.0-1071.77~20.04.1 |
| linux-aws-5.19 | — | — |
| linux-aws-5.3 | — | — |
| linux-aws-5.4 | — | 5.4.0-1134.144~18.04.1 |
| linux-aws-5.8 | — | — |
| linux-aws-6.2 | — | — |
| linux-aws-6.5 | — | — |
| linux-aws-6.8 | — | 6.8.0-1015.16~22.04.1 |
| linux-aws-fips | — | 5.15.0-1071.77+fips1 |
| linux-aws-hwe | — | 4.15.0-1174.187~16.04.1 |
| linux-azure | — | 6.8.0-1014.16 |
| linux-azure-4.15 | — | 4.15.0-1182.197 |
| linux-azure-5.11 | — | — |
| linux-azure-5.13 | — | — |
| linux-azure-5.15 | — | 5.15.0-1074.83~20.04.1 |
| linux-azure-5.19 | — | — |
| linux-azure-5.3 | — | — |
| linux-azure-5.4 | — | 5.4.0-1139.146~18.04.1 |
| linux-azure-5.8 | — | — |
| linux-azure-6.2 | — | — |
| linux-azure-6.5 | — | — |
| linux-azure-6.8 | — | 6.8.0-1014.16~22.04.1 |
| linux-azure-edge | — | — |
| linux-azure-fde | — | — |
| linux-azure-fde-5.19 | — | — |
| linux-azure-fde-6.2 | — | — |
| linux-azure-fips | — | 5.15.0-1074.83+fips1 |
| linux-bluefield | — | — |
| linux-fips | — | 6.8.0-78.78+fips1 |
| linux-gcp | — | 6.8.0-1014.16 |
| linux-gcp-4.15 | — | 4.15.0-1167.184 |
| linux-gcp-5.11 | — | — |
| linux-gcp-5.13 | — | — |
| linux-gcp-5.15 | — | 5.15.0-1070.78~20.04.1 |
| linux-gcp-5.19 | — | — |
| linux-gcp-5.3 | — | — |
| linux-gcp-5.4 | — | 5.4.0-1138.147~18.04.1 |
| linux-gcp-5.8 | — | — |
| linux-gcp-6.2 | — | — |
| linux-gcp-6.5 | — | — |
| linux-gcp-6.8 | — | 6.8.0-1014.16~22.04.1 |
| linux-gcp-fips | — | 5.15.0-1070.78+fips1 |
| linux-gke | — | 6.8.0-1010.13 |
| linux-gke-4.15 | — | — |
| linux-gke-5.15 | — | — |
| linux-gke-5.4 | — | — |
| linux-gkeop | — | 5.15.0-1054.61 |
| linux-gkeop-5.15 | — | 5.15.0-1054.61~20.04.1 |
| linux-gkeop-5.4 | — | — |
| linux-hwe | — | — |
| linux-hwe-5.11 | — | — |
| linux-hwe-5.13 | — | — |
| linux-hwe-5.15 | — | 5.15.0-124.134~20.04.1 |
| linux-hwe-5.19 | — | — |
| linux-hwe-5.4 | — | 5.4.0-198.218~18.04.1 |
| linux-hwe-5.8 | — | — |
| linux-hwe-6.2 | — | — |
| linux-hwe-6.5 | — | — |
| linux-hwe-6.8 | — | 6.8.0-45.45~22.04.1 |
| linux-hwe-edge | — | — |
| linux-ibm | — | 6.8.0-1012.12 |
| linux-ibm-5.15 | — | 5.15.0-1064.67~20.04.1 |
| linux-ibm-5.4 | — | 5.4.0-1081.86~18.04.1 |
| linux-ibm-6.8 | — | 6.8.0-1012.12~22.04.1 |
| linux-intel-5.13 | — | — |
| linux-intel-iot-realtime | — | 5.15.0-1064.66 |
| linux-intel-iotg | — | 5.15.0-1066.72 |
| linux-intel-iotg-5.15 | — | 5.15.0-1066.72~20.04.1 |
| linux-iot | — | 5.4.0-1044.45 |
| linux-kvm | — | 5.15.0-1068.73 |
| linux-lowlatency | — | 6.8.0-44.44.1 |
| linux-lowlatency-hwe-5.15 | — | 5.15.0-124.134~20.04.1 |
| linux-lowlatency-hwe-5.19 | — | — |
| linux-lowlatency-hwe-6.2 | — | — |
| linux-lowlatency-hwe-6.5 | — | — |
| linux-lowlatency-hwe-6.8 | — | 6.8.0-44.44.1~22.04.1 |
| linux-lts-xenial | — | 4.4.0-260.294~14.04.1 |
| linux-nvidia | — | 6.8.0-1013.14 |
| linux-nvidia-6.2 | — | — |
| linux-nvidia-6.5 | — | — |
| linux-nvidia-6.8 | — | 6.8.0-1013.14~22.04.1 |
| linux-nvidia-lowlatency | — | 6.8.0-1013.14.1 |
| linux-nvidia-tegra | — | 5.15.0-1030.30 |
| linux-nvidia-tegra-5.15 | — | 5.15.0-1030.30~20.04.1 |
| linux-nvidia-tegra-igx | — | 5.15.0-1019.19 |
| linux-oem | — | — |
| linux-oem-5.10 | — | — |
| linux-oem-5.13 | — | — |
| linux-oem-5.14 | — | — |
| linux-oem-5.17 | — | — |
| linux-oem-5.6 | — | — |
| linux-oem-6.0 | — | — |
| linux-oem-6.1 | — | — |
| linux-oem-6.5 | — | — |
| linux-oem-6.8 | — | 6.8.0-1012.12 |
| linux-oracle | — | 6.8.0-1012.12 |
| linux-oracle-5.0 | — | — |
| linux-oracle-5.11 | — | — |
| linux-oracle-5.13 | — | — |
| linux-oracle-5.15 | — | 5.15.0-1069.75~20.04.1 |
| linux-oracle-5.3 | — | — |
| linux-oracle-5.4 | — | 5.4.0-1133.142~18.04.1 |
| linux-oracle-5.8 | — | — |
| linux-oracle-6.5 | — | — |
| linux-oracle-6.8 | — | 6.8.0-1012.12~22.04.1 |
| linux-raspi | — | 6.8.0-1011.12 |
| linux-raspi-5.4 | — | 5.4.0-1118.130~18.04.1 |
| linux-raspi-realtime | — | 6.8.0-2010.10 |
| linux-raspi2 | — | — |
| linux-realtime | — | 6.8.1-1008.8 |
| linux-realtime-6.8 | — | 6.8.1-1008.8~22.04.1 |
| linux-riscv | — | 6.8.0-44.44.1 |
| linux-riscv-5.11 | — | — |
| linux-riscv-5.15 | — | 5.15.0-1067.71~20.04.1 |
| linux-riscv-5.19 | — | — |
| linux-riscv-5.8 | — | — |
| linux-riscv-6.5 | — | — |
| linux-riscv-6.8 | — | 6.8.0-44.44.1~22.04.1 |
| linux-starfive-5.19 | — | — |
| linux-starfive-6.2 | — | — |
| linux-starfive-6.5 | — | — |
| linux-xilinx-zynqmp | — | 5.15.0-1037.41 |
References
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