CVE - CVE-2021-47295

CVE-ID
CVE-2021-47295	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: net: sched: fix memory leak in tcindex_partial_destroy_work Syzbot reported memory leak in tcindex_set_parms(). The problem was in non-freed perfect hash in tcindex_partial_destroy_work(). In tcindex_set_parms() new tcindex_data is allocated and some fields from old one are copied to new one, but not the perfect hash. Since tcindex_partial_destroy_work() is the destroy function for old tcindex_data, we need to free perfect hash to avoid memory leak.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/8d7924ce85bae64e7a67c366c7c50840f49f3a62 URL:https://git.kernel.org/stable/c/8d7924ce85bae64e7a67c366c7c50840f49f3a62 MISC:https://git.kernel.org/stable/c/8e9662fde6d63c78eb1350f6167f64c9d71a865b URL:https://git.kernel.org/stable/c/8e9662fde6d63c78eb1350f6167f64c9d71a865b MISC:https://git.kernel.org/stable/c/cac71d27745f92ee13f0ecc668ffe151a4a9c9b1 URL:https://git.kernel.org/stable/c/cac71d27745f92ee13f0ecc668ffe151a4a9c9b1 MISC:https://git.kernel.org/stable/c/f5051bcece50140abd1a11a2d36dc3ec5484fc32 URL:https://git.kernel.org/stable/c/f5051bcece50140abd1a11a2d36dc3ec5484fc32
Assigning CNA
kernel.org
Date Record Created
20240521	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240521)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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