linux: In the Linux kernel, the following vulnerability has been resolved: bus: fsl-mc-bus: fix KASAN use-after-free in fsl...
CVE-2022-49711 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49711, released February 26, 2025. It is not reported as exploited. Patch Radar priority: High.
In the Linux kernel, the following vulnerability has been resolved: bus: fsl-mc-bus: fix KASAN use-after-free in fsl_mc_bus_remove() In fsl_mc_bus_remove(), mc->root_mc_bus_dev->mc_io is passed to fsl_destroy_mc_io(). However, mc->root_mc_bus_dev is already freed in fsl_mc_device_remove(). Then reference to mc->root_mc_bus_dev->mc_io triggers KASAN use-after-free. To avoid the use-after-free, keep the reference to mc->root_mc_bus_dev->mc_io in a local variable and pass to fsl_destroy_mc_io(). This patch needs rework to apply to kernels older than v5.15.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.18.14-1 | DEBIAN-CVE-2022-49711 | Feb 26, 2025 |
| linux · Debian 13.5 (trixie) | 5.18.14-1 | DEBIAN-CVE-2022-49711 | Feb 26, 2025 |
| linux · Debian 14 | 5.18.14-1 | DEBIAN-CVE-2022-49711 | Feb 26, 2025 |
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