CVE-2021-47295

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.

The following products are affected by CVE-2021-47295 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2021-47295.

URL	Resource
https://git.kernel.org/stable/c/01d0d2b8b4e3cf2110baba9371c0c3d04ad5c77b
https://git.kernel.org/stable/c/18c3fa7a7fdbb4d21dafc8a7710ae2c1680930f6
https://git.kernel.org/stable/c/372ae77cf11d11fb118cbe2d37def9dd5f826abd
https://git.kernel.org/stable/c/3abebc503a5148072052c229c6b04b329a420ecd
https://git.kernel.org/stable/c/53af9c793f644d5841d84d8e0ad83bd7ab47f3e0
https://git.kernel.org/stable/c/7a6fb69bbcb21e9ce13bdf18c008c268874f0480
https://git.kernel.org/stable/c/7c183dc0af472dec33d2c0786a5e356baa8cad19
https://git.kernel.org/stable/c/8d7924ce85bae64e7a67c366c7c50840f49f3a62
https://git.kernel.org/stable/c/8e9662fde6d63c78eb1350f6167f64c9d71a865b
https://git.kernel.org/stable/c/cac71d27745f92ee13f0ecc668ffe151a4a9c9b1
https://git.kernel.org/stable/c/f5051bcece50140abd1a11a2d36dc3ec5484fc32
https://lore.kernel.org/linux-cve-announce/2024052124-CVE-2021-47295-cc64@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2021-47295
https://www.cve.org/CVERecord?id=CVE-2021-47295