CVE-2021-47655

Medium

Description

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")

SeverityMedium
CVSS5.5
Exploit probability—
ProductLinux Kernel
PublishedFeb 26, 2025
First seenFeb 26, 2025
Weakness typeCWE-401CWE-401

How to fix

Update
  • linux linux_kernel5.16.19, 5.17.2 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel5.16 ≤ v < 5.16.19, 5.17 ≤ v < 5.17.25.16.19, 5.17.2

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