linux: In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: Fix double free in dvb_register...
CVE-2022-50499 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50499, released October 4, 2025. It is not reported as exploited. Patch Radar priority: High.
In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: Fix double free in dvb_register_device() In function dvb_register_device() -> dvb_register_media_device() -> dvb_create_media_entity(), dvb->entity is allocated and initialized. If the initialization fails, it frees the dvb->entity, and return an error code. The caller takes the error code and handles the error by calling dvb_media_device_free(), which unregisters the entity and frees the field again if it is not NULL. As dvb->entity may not NULLed in dvb_create_media_entity() when the allocation of dvbdev->pad fails, a double free may occur. This may also cause an Use After free in media_device_unregister_entity(). Fix this by storing NULL to dvb->entity when it is freed.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 6.1.4-1 | DEBIAN-CVE-2022-50499 | Oct 4, 2025 |
| linux · Debian 13.5 (trixie) | 6.1.4-1 | DEBIAN-CVE-2022-50499 | Oct 4, 2025 |
| linux · Debian 14 | 6.1.4-1 | DEBIAN-CVE-2022-50499 | Oct 4, 2025 |
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