CVE-2022-49982
In the Linux kernel, the following vulnerability has been resolved:
media: pvrusb2: fix memory leak in pvr_probe
The error handling code in pvr2_hdw_create forgets to unregister the v4l2 device. When pvr2_hdw_create returns back to pvr2_context_create, it calls pvr2_context_destroy to destroy context, but mp->hdw is NULL, which leads to that pvr2_hdw_destroy directly returns.
Fix this by adding v4l2_device_unregister to decrease the refcount of usb interface.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | - | 4.9.327 |
| linux / linux_kernel | 4.10 | 4.14.292 |
| linux / linux_kernel | 4.15 | 4.19.257 |
| linux / linux_kernel | 4.20 | 5.4.212 |
| linux / linux_kernel | 5.5 | 5.10.141 |
| linux / linux_kernel | 5.11 | 5.15.65 |
| linux / linux_kernel | 5.16 | 5.19.7 |
- https://git.kernel.org/stable/c/2fe46195d2f0d5d09ea65433aefe47a4d0d0ff4d
- https://git.kernel.org/stable/c/466b67c0543b2ae67814d053f6e29b39be6b33bb
- https://git.kernel.org/stable/c/491762b3250fb06a0c97b5198656ea48359eaeed
- https://git.kernel.org/stable/c/945a9a8e448b65bec055d37eba58f711b39f66f0
- https://git.kernel.org/stable/c/ba7dd8a9686a61a34b3a7b922ce721378d4740d0
- https://git.kernel.org/stable/c/bacb37bdc2a21c8f7fdc83dcc0dea2f4ca1341fb
- https://git.kernel.org/stable/c/c02d2a91a85c4c4d05826cd1ea74a9b8d42e4280
- https://git.kernel.org/stable/c/f2f6e67522916f53ad8ccd4dbe68dcf76e9776e5
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