Описание
In the Linux kernel, the following vulnerability has been resolved:
media: venus: vdec: fixed possible memory leak issue
The venus_helper_alloc_dpb_bufs() implementation allows an early return on an error path when checking the id from ida_alloc_min() which would not release the earlier buffer allocation.
Move the direct kfree() from the error checking of dma_alloc_attrs() to the common fail path to ensure that allocations are released on all error paths in this function.
Addresses-Coverity: 1494120 ("Resource leak")
In the Linux kernel, the following vulnerability has been resolved:
media: venus: vdec: fixed possible memory leak issue
The venus_helper_alloc_dpb_bufs() implementation allows an early return on an error path when checking the id from ida_alloc_min() which would not release the earlier buffer allocation.
Move the direct kfree() from the error checking of dma_alloc_attrs() to the common fail path to ensure that allocations are released on all error paths in this function.
Addresses-Coverity: 1494120 ("Resource leak")
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2021-47655
- https://git.kernel.org/stable/c/55bccafc246b2e64763a155ec454470c07a54a6e
- https://git.kernel.org/stable/c/5cedfe8aaf1875a5305897107b7f298db4260019
- https://git.kernel.org/stable/c/5f89d05ba93df9c2cdfe493843f93288e55e99eb
- https://git.kernel.org/stable/c/8403fdd775858a7bf04868d43daea0acbe49ddfc
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: media: venus: vdec: fixed possible memory leak issue The venus_helper_alloc_dpb_bufs() implementation allows an early return on an error path when checking the id from ida_alloc_min() which would not release the earlier buffer allocation. Move the direct kfree() from the error checking of dma_alloc_attrs() to the common fail path to ensure that allocations are released on all error paths in this function. Addresses-Coverity: 1494120 ("Resource leak")
In the Linux kernel, the following vulnerability has been resolved: media: venus: vdec: fixed possible memory leak issue The venus_helper_alloc_dpb_bufs() implementation allows an early return on an error path when checking the id from ida_alloc_min() which would not release the earlier buffer allocation. Move the direct kfree() from the error checking of dma_alloc_attrs() to the common fail path to ensure that allocations are released on all error paths in this function. Addresses-Coverity: 1494120 ("Resource leak")
In the Linux kernel, the following vulnerability has been resolved: media: venus: vdec: fixed possible memory leak issue The venus_helper_alloc_dpb_bufs() implementation allows an early return on an error path when checking the id from ida_alloc_min() which would not release the earlier buffer allocation. Move the direct kfree() from the error checking of dma_alloc_attrs() to the common fail path to ensure that allocations are released on all error paths in this function. Addresses-Coverity: 1494120 ("Resource leak")
In the Linux kernel, the following vulnerability has been resolved: m ...
Уязвимость функции venus_helper_alloc_dpb_bufs() модуля drivers/media/platform/qcom/venus/helpers.c драйвера поддержки мультимедийных устройств ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании