CVE-2023-53303

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> net: microchip: vcap api: Fix possible memory leak for vcap_dup_rule()<br /> <br /> Inject fault When select CONFIG_VCAP_KUNIT_TEST, the below memory leak<br /> occurs. If kzalloc() for duprule succeeds, but the following<br /> kmemdup() fails, the duprule, ckf and caf memory will be leaked. So kfree<br /> them in the error path.<br /> <br /> unreferenced object 0xffff122744c50600 (size 192):<br /> comm "kunit_try_catch", pid 346, jiffies 4294896122 (age 911.812s)<br /> hex dump (first 32 bytes):<br /> 10 27 00 00 04 00 00 00 1e 00 00 00 2c 01 00 00 .&amp;#39;..........,...<br /> 00 00 00 00 00 00 00 00 18 06 c5 44 27 12 ff ff ...........D&amp;#39;...<br /> backtrace:<br /> [] __kmem_cache_alloc_node+0x274/0x2f8<br /> [] kmalloc_trace+0x38/0x88<br /> [] vcap_dup_rule+0x50/0x460<br /> [] vcap_add_rule+0x8cc/0x1038<br /> [] test_vcap_xn_rule_creator.constprop.0.isra.0+0x238/0x494<br /> [] vcap_api_rule_remove_in_front_test+0x1ac/0x698<br /> [] kunit_try_run_case+0xe0/0x20c<br /> [] kunit_generic_run_threadfn_adapter+0x50/0x94<br /> [] kthread+0x2e8/0x374<br /> [] ret_from_fork+0x10/0x20