On 11/14, Ravi Bangoria wrote: > > syzbot reported a kernel crash with delayed_uprobe_remove(): > https://lkml.org/lkml/2018/11/1/1244 > > Backtrace mentioned in the link points to a race between process > exit and uprobe_unregister(). Fix it by locking delayed_uprobe_lock > before calling delayed_uprobe_remove() from put_uprobe(). The patch looks good to me, but could you update the changelog? Please explain that the exiting task calls uprobe_clear_state() which can race with delayed_uprobe_remove(). IIUC this is the only problem solved by this patch, right? Oleg.
