Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx> writes: > Thanks for taking a look at this issue. Fortunately, it is easily > reproducable (at least for me). Which server are you doing this against? I couldn't reproduce against Windows Server 2016. >> If you enable verbose debugging [1], if my theory is correct you should >> see a lease break messsage followed by "clear cached root file handle" >> message before the warning. > > Hm, no. Ok well I'm not sure what is happening then. But the final points still stand: - since we don't free anything in the release function, there is no use-after-free. - the access to the kref is already protected by crfid.fid_mutex so we could replace it with a regular int and avoid the warning generated by kref_put() that you see. -- Aurélien Aptel / SUSE Labs Samba Team GPG: 1839 CB5F 9F5B FB9B AA97 8C99 03C8 A49B 521B D5D3 SUSE Linux GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
