CVE-2024-27043

In the Linux kernel, the following vulnerability has been resolved: media: edia: dvbdev: fix a use-after-free In dvb_register_device, *pdvbdev is set equal to dvbdev, which is freed in several error-handling paths. However, *pdvbdev is not set to NULL after dvbdev's deallocation, causing use-after-frees in many places, for example, in the following call chain: budget_register |-> dvb_dmxdev_init |-> dvb_register_device |-> dvb_dmxdev_release |-> dvb_unregister_device |-> dvb_remove_device |-> dvb_device_put |-> kref_put When calling dvb_unregister_device, dmxdev->dvbdev (i.e. *pdvbdev in dvb_register_device) could point to memory that had been freed in dvb_register_device. Thereafter, this pointer is transferred to kref_put and triggering a use-after-free.

• linux linux kernel (>= 2.6.21 < 4.19.311) • linux linux kernel (>= 4.20 < 5.4.273) • linux linux kernel (>= 5.5 < 5.10.214) • linux linux kernel (>= 5.11 < 5.15.153) • linux linux kernel (>= 5.16 < 6.1.83) • linux linux kernel (>= 6.2 < 6.6.23) • linux linux kernel (>= 6.7 < 6.7.11) • linux linux kernel (>= 6.8 < 6.8.2)