CVE-2022-49891

CVE-2022-49891 concerns a Linux kernel memory-leak in tracing/kprobe handling. The root cause is that test_gen_kprobe_cmd() frees buf only on the fail path, causing a leak when no failure occurs; the patch moves kfree(buf) from the fail path to the common path, and applies the same fix to test_ge...

CVE-2022-49891 tracing: kprobe: Fix memory leak in test_gen_kprobe/kretprobe_cmd()

In the Linux kernel, the following vulnerability has been resolved: tracing: kprobe: Fix memory leak in testgenkprobe/kretprobecmd testgenkprobecmd only free buf in fail path, hence buf will leak when there is no failure. Move kfreebuf from fail path to common path to prevent the memleak. The sam...