Bug#866122: kernel resolution
Thank you Barry (and Gustavo) for providing closure on this one. :) On Thu, Sep 12, 2019 at 04:18:00PM -0500, Barry Arndt wrote: One of the problems was introduced in 4.12, and the other in 4.15. For posterity I should note that I first encountered the issue back in 4.9 and bisected it to dc16b553c949e81f37555777dc7bab66d78285a7. It looks like the first commit you mentioned largely undoes that one. In any case I confirmed that cherry-picking those two patches on to an affected kernel does fix the issue for me. Thank you!
Bug#866122: kernel resolution
For reference: While debugging this very tricky problem, our kernel team found 2 separate but related bugs whose resolutions fix the problem outlined in this report. The bug fixes both resulted in CVEs and have already been added to Linus' tree. They are: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?h=fixes=a8318c13e79badb92bc6640704a64cc022a6eb97 https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?h=fixes=8205d5d98ef7f155de211f5e2eb6ca03d95a5a60 The CVEs are: https://security-tracker.debian.org/tracker/CVE-2019-15030 https://security-tracker.debian.org/tracker/CVE-2019-15031 One of the problems was introduced in 4.12, and the other in 4.15. Barry
