Created attachment 383406 [details] emerge --info Hello, All! I use KDE and kcdemu (kde gui for app-cdr/cdemu). When I run kcdemu it shows "Unable to connect to the CDEmu demon" in kde notification window. And dmesg shows this: [552.893438] scsi 7:0:0:0: CD-ROM CDEmu Virt. CD/DVD-ROM 1.10 PQ: 0 ANSI: 0 [552.893645] PAX: kernel memory overwrite attempt detected to ffff880139f2c500 (scsi_sense_cache) (18 bytes) [552.893656] CPU: 0 PID: 2582 Comm: I/O thread Tainted: GO 3.15.5-hardened-r2-gnu #3 [552.893663] 0000000000000000 ffff880139f2c500 ffffffff81766288 0000000000000012 [552.893669] ffffffff81173302 ffff8800b3d9d200 0000000000000082 0000000000000086 [552.893674] ffff8800aaae8000 ffff88013ab55720 ffff8800aaf4eac4 ffff880139f2c500 [552.893678] Call Trace: [552.893688] [<ffffffff81766288>] ? dump_stack+0x41/0x51 [552.893694] [<ffffffff81173302>] ? __check_object_size+0x172/0x220 [552.893709] [<ffffffffa01e67e6>] ? vhba_queuecommand+0x8a6/0xd88 [vhba] [552.893715] [<ffffffff811ae4e4>] ? fsnotify+0x234/0x300 [552.893720] [<ffffffff8127c86a>] ? security_file_permission+0x2a/0xd0 [552.893725] [<ffffffff8116d48b>] ? vfs_write+0x14b/0x280 [552.893728] [<ffffffff8116da3f>] ? SyS_write+0x4f/0xc0 [552.893734] [<ffffffff8176bb62>] ? system_call_fastpath+0x1a/0x1f [552.934925] grsec: denied resource overstep by requesting 69632 for RLIMIT_MEMLOCK against limit 65536 for /usr/bin/knotify4[knotify4:2588] uid/euid:1000/1000 gid/egid:1000/1000, parent /sbin/init[init:1] uid/euid:0/0 gid/egid:0/0 During this one CPU core loads up to 100%. When I try to reboot system - the process of 'shutting down' hangs on OpenRC message "Remounting / read only". After that 'hard reset' only helps.
Created attachment 385682 [details, diff] 0001-VHBA-copy-sense-data-via-temporary-buffer-on-stack-i.patch The problem is in =sys-fs/vhba-20130607 the dependency of app-cdr/cdemu. This patch is from cdemu-devel mailing list. So, FIXED -> UPSTREAM.
