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
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.
- 🔗 git.kernel.org/stable/c/d0f5c28333822f9baa5280d813124920…
- 🔗 git.kernel.org/stable/c/f20c3270f3ed5aa6919a87e4de9bf6c0…
- 🔗 git.kernel.org/stable/c/096237039d00c839f3e3a5fe6d001bf0…
- 🔗 git.kernel.org/stable/c/0d3fe80b6d175c220b3e252efc6c6777…
- 🔗 git.kernel.org/stable/c/437a111f79a2f5b2a5f21e27fdec6f40…
- 🔗 git.kernel.org/stable/c/779e8db7efb22316c8581d6c229636d2…
- 🔗 git.kernel.org/stable/c/35674111a043b0482a9bc69da8850a83…
- 🔗 git.kernel.org/stable/c/b7586e902128e4fb7bfbb661cb52e421…
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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
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 no