Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix memory leak during stateful obj update stateful objects can be updated from the control plane. The transaction logic allocates a temporary object for this purpose. The ->init function was called for this object, so plain kfree() leaks resources. We must call ->destroy function of the object. nft_obj_destroy does this, but it also decrements the module refcount, but the update path doesn't increment it. To avoid special-casing the update object release, do module_get for the update case too and release it via nft_obj_destroy().
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
d62d0ba97b5803183e70cfded7f7b9da76893bf5 to < 53026346a94c43f35c32b18804041bc483271d87affectedd62d0ba97b5803183e70cfded7f7b9da76893bf5 to < 7e9880e81d3fd6a43c202f205717485290432826affectedd62d0ba97b5803183e70cfded7f7b9da76893bf5 to < e96e204ee6fa46702f6c94c3c69a09e69e0eac52affectedd62d0ba97b5803183e70cfded7f7b9da76893bf5 to < 34bb90e407e3288f610558beaae54ecaa32b11c4affectedd62d0ba97b5803183e70cfded7f7b9da76893bf5 to < dad3bdeef45f81a6e90204bcc85360bb76eccec7affected
Linux Linux
Default version status: affected
5.4affected0 to < 5.4unaffected5.4.182 to ≤ 5.4.*unaffected5.10.103 to ≤ 5.10.*unaffected5.15.26 to ≤ 5.15.*unaffected5.16.12 to ≤ 5.16.*unaffected5.17 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/53026346a94c43f35c32b18804041bc483271d87 ↗
- https://git.kernel.org/stable/c/7e9880e81d3fd6a43c202f205717485290432826 ↗
- https://git.kernel.org/stable/c/e96e204ee6fa46702f6c94c3c69a09e69e0eac52 ↗
- https://git.kernel.org/stable/c/34bb90e407e3288f610558beaae54ecaa32b11c4 ↗
- https://git.kernel.org/stable/c/dad3bdeef45f81a6e90204bcc85360bb76eccec7 ↗