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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
b61901024776b25ce7b8edc31bb1757c7382a88e to < d0f5c28333822f9baa5280d813124920720fd856affectedb61901024776b25ce7b8edc31bb1757c7382a88e to < f20c3270f3ed5aa6919a87e4de9bf6c05fb57086affectedb61901024776b25ce7b8edc31bb1757c7382a88e to < 096237039d00c839f3e3a5fe6d001bf0db45b644affectedb61901024776b25ce7b8edc31bb1757c7382a88e to < 0d3fe80b6d175c220b3e252efc6c6777e700e98eaffectedb61901024776b25ce7b8edc31bb1757c7382a88e to < 437a111f79a2f5b2a5f21e27fdec6f40c8768712affectedb61901024776b25ce7b8edc31bb1757c7382a88e to < 779e8db7efb22316c8581d6c229636d2f5694a62affectedb61901024776b25ce7b8edc31bb1757c7382a88e to < 35674111a043b0482a9bc69da8850a83f465b07daffectedb61901024776b25ce7b8edc31bb1757c7382a88e to < b7586e902128e4fb7bfbb661cb52e4215a65637baffectedb61901024776b25ce7b8edc31bb1757c7382a88e to < 8c64f4cdf4e6cc5682c52523713af8c39c94e6d5affected
Linux Linux
Default version status: affected
2.6.21affected0 to < 2.6.21unaffected4.19.311 to ≤ 4.19.*unaffected5.4.273 to ≤ 5.4.*unaffected5.10.214 to ≤ 5.10.*unaffected5.15.153 to ≤ 5.15.*unaffected6.1.83 to ≤ 6.1.*unaffected6.6.23 to ≤ 6.6.*unaffected6.7.11 to ≤ 6.7.*unaffected6.8.2 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/d0f5c28333822f9baa5280d813124920720fd856 ↗
- https://git.kernel.org/stable/c/f20c3270f3ed5aa6919a87e4de9bf6c05fb57086 ↗
- https://git.kernel.org/stable/c/096237039d00c839f3e3a5fe6d001bf0db45b644 ↗
- https://git.kernel.org/stable/c/0d3fe80b6d175c220b3e252efc6c6777e700e98e ↗
- https://git.kernel.org/stable/c/437a111f79a2f5b2a5f21e27fdec6f40c8768712 ↗
- https://git.kernel.org/stable/c/779e8db7efb22316c8581d6c229636d2f5694a62 ↗
- https://git.kernel.org/stable/c/35674111a043b0482a9bc69da8850a83f465b07d ↗
- https://git.kernel.org/stable/c/b7586e902128e4fb7bfbb661cb52e4215a65637b ↗
- https://git.kernel.org/stable/c/8c64f4cdf4e6cc5682c52523713af8c39c94e6d5 ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html ↗