CVSS 7.8 · High EPSS 0,16%
Kerentanan Double Free pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut NVD.
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 4.9.195 hingga sebelum 4.9.337 |
| linux | linux kernel | Versi 4.14.147 hingga sebelum 4.14.303 |
| linux | linux kernel | Versi 4.19.77 hingga sebelum 4.19.270 |
| linux | linux kernel | Versi 5.2.19 hingga sebelum 5.3 |
| linux | linux kernel | Versi 5.3.4 hingga sebelum 5.4.229 |
| linux | linux kernel | Versi 5.5 hingga sebelum 5.10.163 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.15.87 |
| linux | linux kernel | Versi 5.16 hingga sebelum 6.0.18 |
| linux | linux kernel | Versi 6.1 hingga sebelum 6.1.4 |