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Description of problem: After each login I get a new subdirectory created inside my home directory. I mean such things: drwx------. 3 alice alice 4096 фев 19 02:51 'p�'$'\021''�U'/ Inside there's an empty .cache directory and inside .cache there's an empty .xsession-errors. Version-Release number of selected component (if applicable): sddm-0.18.0-1.fc29.x86_64 How reproducible: Always Steps to Reproduce: 1. Network install Fedora 29 with KDE desktop from USB stick 2. Create a user account 3. Login and look inside ~ Actual results: There's a just-created directory with random chars in its name. Additional info: I enabled audit and tracked the bug down to sddm-helper creating these directories: type=PROCTITLE msg=audit(19.02.2019 02:51:02.381:251) : proctitle=/usr/libexec/sddm-helper --socket /tmp/sddm-autheeb5bb4c-d6a5-4448-89be-ca0c1883c1e8 --id 1 --start /usr/bin/startkde --user alitype=PATH msg=audit(19.02.2019 02:51:02.381:251) : item=1 name=/home/alice/p�\021�U inode=11272248 dev=fd:03 mode=dir,700 ouid=alice ogid=alice rdev=00:00 obj=system_u:object_r:user_home_t:s0 nametype=CREATE cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 type=PATH msg=audit(19.02.2019 02:51:02.381:251) : item=0 name=/home/alice/ inode=112 72193 dev=fd:03 mode=dir,700 ouid=alice ogid=alice rdev=00:00 obj=unconfined_u:object_r:user_home_dir_t:s0 nametype=PARENT cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 type=CWD msg=audit(19.02.2019 02:51:02.381:251) : cwd=/home/alice type=SYSCALL msg=audit(19.02.2019 02:51:02.381:251) : arch=x86_64 syscall=mkdir success=yes exit=0 a0=0x55da11a466b8 a1=0777 a2=0x15 a3=0x0 items=2 ppid=1727 pid=1752 auid=alice uid=alice gid=alice euid=alice suid=alice fsuid=alice egid=alice sgid=alice fsgid=alice tty=(none) ses=4 comm=sddm-helper exe=/usr/libexec/sddm-helper subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 key=(null) --- There's a very similar bug #1665740 but they blame abrt there. I have erased abrt and his countless minions off the face of my OS and I still get those directories created at (almost) every login. So abrt is not the cause.
Fedora 29 x86_64, updated. I have the same problem. type=AVC msg=audit(1551435502.201:259): avc: denied { write } for pid=1800 comm="sddm-helper" path="/home/username/3V/.cache/xsession-errors" dev="dm-1" ino=202884691 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:user_home_t:s0 tclass=file permissive=0 - in this case sddm-helper tries to create *V folder. The first symbol is always different. On example: �U PV 3V
Looks like the weird name is somehow related to a) login name and b) locale. As far as I understand both me and Vladislav are using Cyrillic locales.
No, that's not a locale issue. I'm using en_US.UTF-8. Occasionally, sddm_helper gets a corrupted passwd structure from getpwnam_r() in function UserSession::setupChildProcess() Why? I don't know. Regardless of username, locale, etc... Different CPUs?
So, i guess, the reason ins line 233 in src/helper/UserSession.cpp: free(buffer) C code to demonstrate this behavior https://pastebin.com/fpWyg78c My output: before: /home/zend after: J
sddm-0.18.0-4.fc29 has been submitted as an update to Fedora 29. https://bodhi.fedoraproject.org/updates/FEDORA-2019-96c964d319
sddm-0.18.0-4.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report.