| Name | CVE-2024-27043 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-5681-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | buster | 4.19.249-2 | vulnerable |
| buster (security) | 4.19.304-1 | vulnerable | |
| bullseye | 5.10.209-2 | vulnerable | |
| bullseye (security) | 5.10.216-1 | fixed | |
| bookworm | 6.1.76-1 | vulnerable | |
| bookworm (security) | 6.1.90-1 | fixed | |
| trixie | 6.7.12-1 | fixed | |
| sid | 6.8.9-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | bullseye | 5.10.216-1 | DSA-5681-1 | ||
| linux | source | bookworm | 6.1.85-1 | |||
| linux | source | (unstable) | 6.7.12-1 |
https://git.kernel.org/linus/8c64f4cdf4e6cc5682c52523713af8c39c94e6d5 (6.9-rc1)