View at Official ubuntu advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2018-20449 negligible priority: Ubuntu including 73 source packages (linux, linux-aws, …), 529 status rows across 9 suites (bionic, cosmic, disco, focal, jammy, noble, trusty, upstream, xenial): DNE 315, not-affected 127, released 76, ignored 11.
The hidma_chan_stats function in drivers/dma/qcom/hidma_dbg.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address information by reading "callback=" lines in a debugfs file.