On 7/18/20 8:40 PM, bauen1 wrote:
> Hi,
> After upgrading from linux 5.6 to 5.7 on my debian machines with selinux I've
> started seeing this null pointer dereference in the audit system. I've
> included shortened logs for 5.6 without the error and from 5.7 with the error
> from my laptop. I've also seen it happen in a VM and a server, but don't have
> the logs anymore. Grift was able to reproduced (presumably) the same issue on
> fedora with 5.8-rc4.
>
> Steps to reproduce:
> Write an selinux policy with a domain for systemd-user-runtime-dir and audit
> all permissions of the dir class. E.g. `(auditallow
> systemd_user_runtime_dir_t all_types (dir (all)))`
> Switch to permissive mode.
> Create a new user and login, log out and wait a few seconds for systemd to
> stop user-runtime-dir@<uid>.service
This should be a reproducer:
echo "(auditallow systemd_logind_t file_type (dir (all)))" > mytest.cil
&& sudo semodule -i mytest.cil
reboot
>
> I believe this issue was made visible by
> 1320a4052ea11eb2879eb7361da15a106a780972.
> Now a AUDIT_PATH event is also generated by default and
> systemd-user-runtime-dir is making syscalls that audit_log_name can't handle.
>
> I hope this is enough info to find the root cause.
> - bauen1
>
> Log without crash (5.6):
>
> Jul 18 14:26:36 jh-mba kernel: Linux version 5.6.0-2-amd64
> ([email protected]) (gcc version 9.3.0 (Debian 9.3.0-13)) #1 SMP
> Debian 5.6.14-2 (2020-06-09)
> Jul 18 14:27:53 jh-mba audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295
> ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=user@1001
> comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=?
> res=success'
> Jul 18 14:27:53 jh-mba systemd[1]: Stopping User Runtime Directory
> /run/user/1001...
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { read } for pid=3178
> comm="systemd-user-ru" name="dconf" dev="tmpfs" ino=41325
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:gconf_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { open } for pid=3178
> comm="systemd-user-ru" path="/run/user/1001/dconf" dev="tmpfs" ino=41325
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:gconf_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { getattr } for
> pid=3178 comm="systemd-user-ru" path="/run/user/1001/dconf" dev="tmpfs"
> ino=41325 scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:gconf_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { search } for
> pid=3178 comm="systemd-user-ru" name="dconf" dev="tmpfs" ino=41325
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:gconf_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { write } for pid=3178
> comm="systemd-user-ru" name="dconf" dev="tmpfs" ino=41325
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:gconf_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { remove_name } for
> pid=3178 comm="systemd-user-ru" name="user" dev="tmpfs" ino=41326
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:gconf_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { unlink } for
> pid=3178 comm="systemd-user-ru" name="user" dev="tmpfs" ino=41326
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:gconf_tmp_t:s0 tclass=file permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { rmdir } for pid=3178
> comm="systemd-user-ru" name="dconf" dev="tmpfs" ino=41325
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:gconf_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { read } for pid=3178
> comm="systemd-user-ru" name="gvfs" dev="tmpfs" ino=42315
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:user_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { open } for pid=3178
> comm="systemd-user-ru" path="/run/user/1001/gvfs" dev="tmpfs" ino=42315
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:user_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { getattr } for
> pid=3178 comm="systemd-user-ru" path="/run/user/1001/gvfs" dev="tmpfs"
> ino=42315 scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:user_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { rmdir } for pid=3178
> comm="systemd-user-ru" name="gvfs" dev="tmpfs" ino=42315
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:user_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { read } for pid=3178
> comm="systemd-user-ru" name="dbus-1" dev="tmpfs" ino=39557
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:session_dbusd_runtime_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { open } for pid=3178
> comm="systemd-user-ru" path="/run/user/1001/dbus-1" dev="tmpfs" ino=39557
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:session_dbusd_runtime_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { getattr } for
> pid=3178 comm="systemd-user-ru" path="/run/user/1001/dbus-1" dev="tmpfs"
> ino=39557 scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:session_dbusd_runtime_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { search } for
> pid=3178 comm="systemd-user-ru" name="dbus-1" dev="tmpfs" ino=39557
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:session_dbusd_runtime_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { write } for pid=3178
> comm="systemd-user-ru" name="dbus-1" dev="tmpfs" ino=39557
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:session_dbusd_runtime_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { remove_name } for
> pid=3178 comm="systemd-user-ru" name="services" dev="tmpfs" ino=39558
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:session_dbusd_runtime_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { rmdir } for pid=3178
> comm="systemd-user-ru" name="services" dev="tmpfs" ino=39558
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:session_dbusd_runtime_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { open } for pid=3178
> comm="systemd-user-ru" path="/run/user/1001/pulse" dev="tmpfs" ino=41258
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:pulseaudio_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { getattr } for
> pid=3178 comm="systemd-user-ru" path="/run/user/1001/pulse" dev="tmpfs"
> ino=41258 scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:pulseaudio_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { search } for
> pid=3178 comm="systemd-user-ru" name="pulse" dev="tmpfs" ino=41258
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:pulseaudio_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { write } for pid=3178
> comm="systemd-user-ru" name="pulse" dev="tmpfs" ino=41258
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:pulseaudio_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { remove_name } for
> pid=3178 comm="systemd-user-ru" name="native" dev="tmpfs" ino=41259
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:pulseaudio_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { unlink } for
> pid=3178 comm="systemd-user-ru" name="native" dev="tmpfs" ino=41259
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:pulseaudio_tmp_t:s0 tclass=sock_file permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { rmdir } for pid=3178
> comm="systemd-user-ru" name="pulse" dev="tmpfs" ino=41258
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:pulseaudio_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { unlink } for
> pid=3178 comm="systemd-user-ru" name="bus" dev="tmpfs" ino=41239
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:session_dbusd_runtime_t:s0 tclass=sock_file
> permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { read } for pid=3178
> comm="systemd-user-ru" name="gnupg" dev="tmpfs" ino=42225
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:dirmngr_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { open } for pid=3178
> comm="systemd-user-ru" path="/run/user/1001/gnupg" dev="tmpfs" ino=42225
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:dirmngr_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { getattr } for
> pid=3178 comm="systemd-user-ru" path="/run/user/1001/gnupg" dev="tmpfs"
> ino=42225 scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:dirmngr_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { search } for
> pid=3178 comm="systemd-user-ru" name="gnupg" dev="tmpfs" ino=42225
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:dirmngr_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { write } for pid=3178
> comm="systemd-user-ru" name="gnupg" dev="tmpfs" ino=42225
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:dirmngr_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { remove_name } for
> pid=3178 comm="systemd-user-ru" name="S.gpg-agent" dev="tmpfs" ino=41252
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:dirmngr_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { unlink } for
> pid=3178 comm="systemd-user-ru" name="S.gpg-agent" dev="tmpfs" ino=41252
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:dirmngr_tmp_t:s0 tclass=sock_file permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { rmdir } for pid=3178
> comm="systemd-user-ru" name="gnupg" dev="tmpfs" ino=42225
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:dirmngr_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { open } for pid=3178
> comm="systemd-user-ru" path="/run/user/1001/systemd" dev="tmpfs" ino=39472
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:systemd_user_runtime_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { getattr } for
> pid=3178 comm="systemd-user-ru" path="/run/user/1001/systemd" dev="tmpfs"
> ino=39472 scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:systemd_user_runtime_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { search } for
> pid=3178 comm="systemd-user-ru" name="systemd" dev="tmpfs" ino=39472
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:systemd_user_runtime_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { write } for pid=3178
> comm="systemd-user-ru" name="systemd" dev="tmpfs" ino=39472
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:systemd_user_runtime_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { remove_name } for
> pid=3178 comm="systemd-user-ru" name="private" dev="tmpfs" ino=41230
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:systemd_user_runtime_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { unlink } for
> pid=3178 comm="systemd-user-ru" name="private" dev="tmpfs" ino=41230
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:systemd_user_runtime_t:s0 tclass=sock_file
> permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { unlink } for
> pid=3178 comm="systemd-user-ru" name="notify" dev="tmpfs" ino=41226
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:systemd_user_runtime_notify_t:s0 tclass=sock_file
> permissive=1
> Jul 18 14:27:53 jh-mba audit[3178]: AVC avc: denied { rmdir } for pid=3178
> comm="systemd-user-ru" name="units" dev="tmpfs" ino=39473
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:systemd_user_runtime_t:s0 tclass=dir permissive=1
> Jul 18 14:27:53 jh-mba systemd[2501]: run-user-1001.mount: Succeeded.
> Jul 18 14:27:53 jh-mba systemd[1]: run-user-1001.mount: Succeeded.
> Jul 18 14:27:53 jh-mba systemd[2839]: run-user-1001.mount: Succeeded.
> Jul 18 14:27:53 jh-mba systemd[1]: [email protected]: Succeeded.
> Jul 18 14:27:53 jh-mba systemd[1]: Stopped User Runtime Directory
> /run/user/1001.
>
>
> Log with crash (5.7):
>
> Jul 18 14:30:09 jh-mba kernel: Linux version 5.7.0-1-amd64
> ([email protected]) (gcc version 9.3.0 (Debian 9.3.0-14), GNU ld
> (GNU Binutils for Debian) 2.34) #1 SMP Debian 5.7.6-1 (2020-06-24)
> Jul 18 14:35:10 jh-mba audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295
> ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=user@1001
> comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=?
> res=success'
> Jul 18 14:35:10 jh-mba systemd[1]: Stopping User Runtime Directory
> /run/user/1001...
> Jul 18 14:35:10 jh-mba audit[3163]: AVC avc: denied { read } for pid=3163
> comm="systemd-user-ru" name="dconf" dev="tmpfs" ino=39541
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:gconf_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:35:10 jh-mba audit[3163]: AVC avc: denied { open } for pid=3163
> comm="systemd-user-ru" path="/run/user/1001/dconf" dev="tmpfs" ino=39541
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:gconf_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:35:10 jh-mba audit[3163]: SYSCALL arch=c000003e syscall=257
> success=yes exit=4 a0=3 a1=55edb4e41073 a2=f0800 a3=0 items=0 ppid=1 pid=3163
> auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0
> tty=(none) ses=4294967295 comm="systemd-user-ru"
> exe="/usr/lib/systemd/systemd-user-runtime-dir"
> subj=system_u:system_r:systemd_user_runtime_dir_t:s0 key=(null)
> Jul 18 14:35:10 jh-mba audit: PROCTITLE
> proctitle=2F6C69622F73797374656D642F73797374656D642D757365722D72756E74696D652D6469720073746F700031303031
> Jul 18 14:35:10 jh-mba audit[3163]: AVC avc: denied { getattr } for
> pid=3163 comm="systemd-user-ru" path="/run/user/1001/dconf" dev="tmpfs"
> ino=39541 scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:gconf_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:35:10 jh-mba audit[3163]: SYSCALL arch=c000003e syscall=5
> success=yes exit=0 a0=4 a1=7fff95e523b0 a2=7fff95e523b0 a3=7fff95e52414
> items=0 ppid=1 pid=3163 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0
> egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd-user-ru"
> exe="/usr/lib/systemd/systemd-user-runtime-dir"
> subj=system_u:system_r:systemd_user_runtime_dir_t:s0 key=(null)
> Jul 18 14:35:10 jh-mba audit: PROCTITLE
> proctitle=2F6C69622F73797374656D642F73797374656D642D757365722D72756E74696D652D6469720073746F700031303031
> Jul 18 14:35:10 jh-mba audit[3163]: AVC avc: denied { search } for
> pid=3163 comm="systemd-user-ru" name="dconf" dev="tmpfs" ino=39541
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:gconf_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:35:10 jh-mba audit[3163]: AVC avc: denied { write } for pid=3163
> comm="systemd-user-ru" name="dconf" dev="tmpfs" ino=39541
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:gconf_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:35:10 jh-mba audit[3163]: AVC avc: denied { remove_name } for
> pid=3163 comm="systemd-user-ru" name="user" dev="tmpfs" ino=39542
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:gconf_tmp_t:s0 tclass=dir permissive=1
> Jul 18 14:35:10 jh-mba audit[3163]: AVC avc: denied { unlink } for
> pid=3163 comm="systemd-user-ru" name="user" dev="tmpfs" ino=39542
> scontext=system_u:system_r:systemd_user_runtime_dir_t:s0
> tcontext=user_u:object_r:gconf_tmp_t:s0 tclass=file permissive=1
> Jul 18 14:35:10 jh-mba audit[3163]: SYSCALL arch=c000003e syscall=263
> success=yes exit=0 a0=4 a1=55edb4e490b3 a2=0 a3=4 items=2 ppid=1 pid=3163
> auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0
> tty=(none) ses=4294967295 comm="systemd-user-ru"
> exe="/usr/lib/systemd/systemd-user-runtime-dir"
> subj=system_u:system_r:systemd_user_runtime_dir_t:s0 key=(null)
> Jul 18 14:35:10 jh-mba kernel: BUG: kernel NULL pointer dereference, address:
> 0000000000000060
> Jul 18 14:35:10 jh-mba kernel: #PF: supervisor read access in kernel mode
> Jul 18 14:35:10 jh-mba kernel: #PF: error_code(0x0000) - not-present page
> Jul 18 14:35:11 jh-mba kernel: PGD 0 P4D 0
> Jul 18 14:35:11 jh-mba kernel: Oops: 0000 [#1] SMP PTI
> Jul 18 14:35:11 jh-mba kernel: CPU: 1 PID: 3163 Comm: systemd-user-ru
> Tainted: P OE 5.7.0-1-amd64 #1 Debian 5.7.6-1
> Jul 18 14:35:11 jh-mba kernel: Hardware name: Apple Inc.
> MacBookAir6,2/Mac-7DF21CB3ED6977E5, BIOS 110.0.0.0.0 09/17/2018
> Jul 18 14:35:11 jh-mba kernel: RIP: 0010:d_path+0x35/0x140
> Jul 18 14:35:11 jh-mba kernel: Code: 49 89 fc 48 83 ec 28 48 8b 7f 08 89 54
> 24 04 65 48 8b 04 25 28 00 00 00 48 89 44 24 20 31 c0 48 63 c2 48 01 f0 48 89
> 44 24 08 <48> 8b 47 60 48 85 c0 74 22 48 8b 40 48 48 85 c0 74 19 48 3b 7f 18
> Jul 18 14:35:11 jh-mba kernel: RSP: 0018:ffffb71e411cfe18 EFLAGS: 00010282
> Jul 18 14:35:11 jh-mba kernel: RAX: ffff9a525f18700b RBX: ffff9a524fc52060
> RCX: 00000000000004dd
> Jul 18 14:35:11 jh-mba kernel: RDX: 000000000000100b RSI: ffff9a525f186000
> RDI: 0000000000000000
> Jul 18 14:35:11 jh-mba kernel: RBP: ffffb71e411cfe48 R08: ffff9a52672b0060
> R09: 0000000000000006
> Jul 18 14:35:11 jh-mba kernel: R10: ffff9a522c99e6c0 R11: ffff9a532c99e030
> R12: ffff9a524fc522b0
> Jul 18 14:35:11 jh-mba kernel: R13: ffff9a52658d3708 R14: ffff9a524fc52000
> R15: 0000000000000000
> Jul 18 14:35:11 jh-mba kernel: FS: 00007ff68934e980(0000)
> GS:ffff9a5267280000(0000) knlGS:0000000000000000
> Jul 18 14:35:11 jh-mba kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
> 0000000080050033
> Jul 18 14:35:11 jh-mba kernel: CR2: 0000000000000060 CR3: 0000000226ce6002
> CR4: 00000000001606e0
> Jul 18 14:35:11 jh-mba kernel: Call Trace:
> Jul 18 14:35:11 jh-mba kernel: audit_log_d_path+0x75/0xd0
> Jul 18 14:35:11 jh-mba kernel: audit_log_exit+0x63d/0xcf0
> Jul 18 14:35:11 jh-mba kernel: ? audit_filter_inodes+0x2e/0x100
> Jul 18 14:35:11 jh-mba kernel: __audit_syscall_exit+0x23b/0x2a0
> Jul 18 14:35:11 jh-mba kernel: syscall_slow_exit_work+0x117/0x140
> Jul 18 14:35:11 jh-mba kernel: do_syscall_64+0x10e/0x180
> Jul 18 14:35:11 jh-mba kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9
> Jul 18 14:35:11 jh-mba kernel: RIP: 0033:0x7ff689f8eb67
> Jul 18 14:35:11 jh-mba kernel: Code: 73 01 c3 48 8b 0d 29 d3 0c 00 f7 d8 64
> 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 07 01 00
> 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d f9 d2 0c 00 f7 d8 64 89 01 48
> Jul 18 14:35:11 jh-mba kernel: RSP: 002b:00007fff95e52468 EFLAGS: 00000246
> ORIG_RAX: 0000000000000107
> Jul 18 14:35:11 jh-mba kernel: RAX: 0000000000000000 RBX: 00007ff68934e830
> RCX: 00007ff689f8eb67
> Jul 18 14:35:11 jh-mba kernel: RDX: 0000000000000000 RSI: 000055edb4e490b3
> RDI: 0000000000000004
> Jul 18 14:35:11 jh-mba kernel: RBP: 0000000000000004 R08: 000055edb4e490a0
> R09: 00007ff68a05cbe0
> Jul 18 14:35:11 jh-mba kernel: R10: 0000000000000004 R11: 0000000000000246
> R12: 000055edb4e49040
> Jul 18 14:35:11 jh-mba kernel: R13: 0000000000000000 R14: 000055edb4e490a0
> R15: 000055edb4e490b3
> Jul 18 14:35:11 jh-mba kernel: Modules linked in: rfcomm bnep xt_CHECKSUM
> cpufreq_powersave xt_MASQUERADE cpufreq_conservative cpufreq_userspace
> xt_tcpudp nft_compat bridge stp llc overlay fuse nft_chain_nat nf_nat
> nf_log_ipv6 nf_log_ipv4 nf_log_common nft_log veth intel_rapl_msr btusb btrtl
> btbcm joydev binfmt_misc btintel nls_ascii nls_cp437 vfat fat bluetooth
> nft_counter drbg intel_rapl_common asix ansi_cprng ecdh_generic usbnet ecc
> mii vrf libphy x86_pkg_temp_thermal intel_powerclamp applesmc
> snd_hda_codec_hdmi snd_hda_codec_cirrus snd_hda_codec_generic coretemp
> ledtrig_audio evdev wireguard kvm_intel curve25519_x86_64
> libcurve25519_generic libchacha20poly1305 snd_hda_intel kvm bcm5974 wl(POE)
> snd_intel_dspcfg chacha_x86_64 poly1305_x86_64 ip6_udp_tunnel efi_pstore
> udp_tunnel irqbypass snd_hda_codec libblake2s cfg80211 intel_cstate
> snd_hda_core blake2s_x86_64 libblake2s_generic libchacha snd_hwdep
> intel_uncore iTCO_wdt i915 iTCO_vendor_support intel_rapl_perf snd_pcm nft_ct
> sg
efivars pcspkr nf_conntrack
> Jul 18 14:35:11 jh-mba kernel: watchdog rfkill snd_timer nf_defrag_ipv6
> nf_defrag_ipv4 drm_kms_helper mei_me snd mei cec soundcore i2c_algo_bit sbs
> sbshc acpi_als kfifo_buf industrialio apple_bl ac button bonding nf_tables
> parport_pc(E) nfnetlink ppdev(E) lp(E) drm parport(E) sunrpc efivarfs
> ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 btrfs blake2b_generic
> zstd_decompress zstd_compress hid_apple hid_generic usbhid hid dm_crypt
> dm_mod raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor
> async_tx xor raid6_pq libcrc32c crc32c_generic raid1 raid0 multipath linear
> md_mod uas usb_storage sd_mod t10_pi crc_t10dif crct10dif_generic
> crct10dif_pclmul crct10dif_common crc32_pclmul crc32c_intel
> ghash_clmulni_intel ahci libahci xhci_pci aesni_intel xhci_hcd libaes
> crypto_simd libata cryptd glue_helper usbcore scsi_mod i2c_i801 thunderbolt
> lpc_ich mfd_core usb_common spi_pxa2xx_platform dw_dmac video dw_dmac_core
> Jul 18 14:35:11 jh-mba kernel: CR2: 0000000000000060
> Jul 18 14:35:11 jh-mba kernel: ---[ end trace 01b46d19ab2d30bf ]---
> Jul 18 14:35:11 jh-mba kernel: RIP: 0010:d_path+0x35/0x140
> Jul 18 14:35:11 jh-mba kernel: Code: 49 89 fc 48 83 ec 28 48 8b 7f 08 89 54
> 24 04 65 48 8b 04 25 28 00 00 00 48 89 44 24 20 31 c0 48 63 c2 48 01 f0 48 89
> 44 24 08 <48> 8b 47 60 48 85 c0 74 22 48 8b 40 48 48 85 c0 74 19 48 3b 7f 18
> Jul 18 14:35:11 jh-mba kernel: RSP: 0018:ffffb71e411cfe18 EFLAGS: 00010282
> Jul 18 14:35:11 jh-mba kernel: RAX: ffff9a525f18700b RBX: ffff9a524fc52060
> RCX: 00000000000004dd
> Jul 18 14:35:11 jh-mba kernel: RDX: 000000000000100b RSI: ffff9a525f186000
> RDI: 0000000000000000
> Jul 18 14:35:11 jh-mba kernel: RBP: ffffb71e411cfe48 R08: ffff9a52672b0060
> R09: 0000000000000006
> Jul 18 14:35:11 jh-mba kernel: R10: ffff9a522c99e6c0 R11: ffff9a532c99e030
> R12: ffff9a524fc522b0
> Jul 18 14:35:11 jh-mba kernel: R13: ffff9a52658d3708 R14: ffff9a524fc52000
> R15: 0000000000000000
> Jul 18 14:35:11 jh-mba kernel: FS: 00007ff68934e980(0000)
> GS:ffff9a5267280000(0000) knlGS:0000000000000000
> Jul 18 14:35:11 jh-mba kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
> 0000000080050033
> Jul 18 14:35:11 jh-mba kernel: CR2: 0000000000000060 CR3: 0000000226ce6002
> CR4: 00000000001606e0
> Jul 18 14:35:11 jh-mba kernel: BUG: kernel NULL pointer dereference, address:
> 0000000000000060
> Jul 18 14:35:11 jh-mba kernel: #PF: supervisor read access in kernel mode
> Jul 18 14:35:12 jh-mba kernel: #PF: error_code(0x0000) - not-present page
> Jul 18 14:35:13 jh-mba kernel: PGD 0 P4D 0
> Jul 18 14:35:13 jh-mba kernel: Oops: 0000 [#2] SMP PTI
> Jul 18 14:35:13 jh-mba kernel: CPU: 1 PID: 3163 Comm: systemd-user-ru
> Tainted: P D OE 5.7.0-1-amd64 #1 Debian 5.7.6-1
> Jul 18 14:35:13 jh-mba kernel: Hardware name: Apple Inc.
> MacBookAir6,2/Mac-7DF21CB3ED6977E5, BIOS 110.0.0.0.0 09/17/2018
> Jul 18 14:35:13 jh-mba kernel: RIP: 0010:d_path+0x35/0x140
> Jul 18 14:35:13 jh-mba kernel: Code: 49 89 fc 48 83 ec 28 48 8b 7f 08 89 54
> 24 04 65 48 8b 04 25 28 00 00 00 48 89 44 24 20 31 c0 48 63 c2 48 01 f0 48 89
> 44 24 08 <48> 8b 47 60 48 85 c0 74 22 48 8b 40 48 48 85 c0 74 19 48 3b 7f 18
> Jul 18 14:35:13 jh-mba kernel: RSP: 0018:ffffb71e411cfde0 EFLAGS: 00010282
> Jul 18 14:35:13 jh-mba kernel: RAX: ffff9a525f18500b RBX: ffff9a524fc52060
> RCX: 00000000000004e0
> Jul 18 14:35:13 jh-mba kernel: RDX: 000000000000100b RSI: ffff9a525f184000
> RDI: 0000000000000000
> Jul 18 14:35:13 jh-mba kernel: RBP: ffffb71e411cfe10 R08: ffff9a52672b0060
> R09: 0000000000000006
> Jul 18 14:35:13 jh-mba kernel: R10: ffff9a522c99cec0 R11: ffff9a532c99c830
> R12: ffff9a524fc522b0
> Jul 18 14:35:13 jh-mba kernel: R13: ffff9a52658d35e8 R14: ffff9a524fc52000
> R15: 0000000000000000
> Jul 18 14:35:13 jh-mba kernel: FS: 00007ff68934e980(0000)
> GS:ffff9a5267280000(0000) knlGS:0000000000000000
> Jul 18 14:35:13 jh-mba kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
> 0000000080050033
> Jul 18 14:35:13 jh-mba kernel: CR2: 0000000000000060 CR3: 0000000226ce6002
> CR4: 00000000001606e0
> Jul 18 14:35:13 jh-mba kernel: Call Trace:
> Jul 18 14:35:13 jh-mba kernel: audit_log_d_path+0x75/0xd0
> Jul 18 14:35:13 jh-mba kernel: audit_log_exit+0x63d/0xcf0
> Jul 18 14:35:13 jh-mba kernel: ? audit_log_d_path+0x75/0xd0
> Jul 18 14:35:13 jh-mba kernel: ? audit_filter_inodes+0x2e/0x100
> Jul 18 14:35:13 jh-mba kernel: __audit_free+0x233/0x260
> Jul 18 14:35:13 jh-mba kernel: do_exit+0x8d3/0xb50
> Jul 18 14:35:13 jh-mba kernel: ? syscall_slow_exit_work+0x117/0x140
> Jul 18 14:35:13 jh-mba kernel: rewind_stack_do_exit+0x17/0x20
> Jul 18 14:35:13 jh-mba kernel: RIP: 0033:0x7ff689f8eb67
> Jul 18 14:35:13 jh-mba kernel: Code: 73 01 c3 48 8b 0d 29 d3 0c 00 f7 d8 64
> 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 07 01 00
> 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d f9 d2 0c 00 f7 d8 64 89 01 48
> Jul 18 14:35:13 jh-mba kernel: RSP: 002b:00007fff95e52468 EFLAGS: 00000246
> ORIG_RAX: 0000000000000107
> Jul 18 14:35:13 jh-mba kernel: RAX: 0000000000000000 RBX: 00007ff68934e830
> RCX: 00007ff689f8eb67
> Jul 18 14:35:13 jh-mba kernel: RDX: 0000000000000000 RSI: 000055edb4e490b3
> RDI: 0000000000000004
> Jul 18 14:35:13 jh-mba kernel: RBP: 0000000000000004 R08: 000055edb4e490a0
> R09: 00007ff68a05cbe0
> Jul 18 14:35:13 jh-mba kernel: R10: 0000000000000004 R11: 0000000000000246
> R12: 000055edb4e49040
> Jul 18 14:35:13 jh-mba kernel: R13: 0000000000000000 R14: 000055edb4e490a0
> R15: 000055edb4e490b3
> Jul 18 14:35:13 jh-mba kernel: Modules linked in: rfcomm bnep xt_CHECKSUM
> cpufreq_powersave xt_MASQUERADE cpufreq_conservative cpufreq_userspace
> xt_tcpudp nft_compat bridge stp llc overlay fuse nft_chain_nat nf_nat
> nf_log_ipv6 nf_log_ipv4 nf_log_common nft_log veth intel_rapl_msr btusb btrtl
> btbcm joydev binfmt_misc btintel nls_ascii nls_cp437 vfat fat bluetooth
> nft_counter drbg intel_rapl_common asix ansi_cprng ecdh_generic usbnet ecc
> mii vrf libphy x86_pkg_temp_thermal intel_powerclamp applesmc
> snd_hda_codec_hdmi snd_hda_codec_cirrus snd_hda_codec_generic coretemp
> ledtrig_audio evdev wireguard kvm_intel curve25519_x86_64
> libcurve25519_generic libchacha20poly1305 snd_hda_intel kvm bcm5974 wl(POE)
> snd_intel_dspcfg chacha_x86_64 poly1305_x86_64 ip6_udp_tunnel efi_pstore
> udp_tunnel irqbypass snd_hda_codec libblake2s cfg80211 intel_cstate
> snd_hda_core blake2s_x86_64 libblake2s_generic libchacha snd_hwdep
> intel_uncore iTCO_wdt i915 iTCO_vendor_support intel_rapl_perf snd_pcm nft_ct
> sg
efivars pcspkr nf_conntrack
> Jul 18 14:35:13 jh-mba kernel: watchdog rfkill snd_timer nf_defrag_ipv6
> nf_defrag_ipv4 drm_kms_helper mei_me snd mei cec soundcore i2c_algo_bit sbs
> sbshc acpi_als kfifo_buf industrialio apple_bl ac button bonding nf_tables
> parport_pc(E) nfnetlink ppdev(E) lp(E) drm parport(E) sunrpc efivarfs
> ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 btrfs blake2b_generic
> zstd_decompress zstd_compress hid_apple hid_generic usbhid hid dm_crypt
> dm_mod raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor
> async_tx xor raid6_pq libcrc32c crc32c_generic raid1 raid0 multipath linear
> md_mod uas usb_storage sd_mod t10_pi crc_t10dif crct10dif_generic
> crct10dif_pclmul crct10dif_common crc32_pclmul crc32c_intel
> ghash_clmulni_intel ahci libahci xhci_pci aesni_intel xhci_hcd libaes
> crypto_simd libata cryptd glue_helper usbcore scsi_mod i2c_i801 thunderbolt
> lpc_ich mfd_core usb_common spi_pxa2xx_platform dw_dmac video dw_dmac_core
> Jul 18 14:35:13 jh-mba kernel: CR2: 0000000000000060
> Jul 18 14:35:13 jh-mba kernel: ---[ end trace 01b46d19ab2d30c0 ]---
> Jul 18 14:35:13 jh-mba kernel: RIP: 0010:d_path+0x35/0x140
> Jul 18 14:35:13 jh-mba kernel: Code: 49 89 fc 48 83 ec 28 48 8b 7f 08 89 54
> 24 04 65 48 8b 04 25 28 00 00 00 48 89 44 24 20 31 c0 48 63 c2 48 01 f0 48 89
> 44 24 08 <48> 8b 47 60 48 85 c0 74 22 48 8b 40 48 48 85 c0 74 19 48 3b 7f 18
> Jul 18 14:35:13 jh-mba kernel: RSP: 0018:ffffb71e411cfe18 EFLAGS: 00010282
> Jul 18 14:35:13 jh-mba kernel: RAX: ffff9a525f18700b RBX: ffff9a524fc52060
> RCX: 00000000000004dd
> Jul 18 14:35:13 jh-mba kernel: RDX: 000000000000100b RSI: ffff9a525f186000
> RDI: 0000000000000000
> Jul 18 14:35:13 jh-mba kernel: RBP: ffffb71e411cfe48 R08: ffff9a52672b0060
> R09: 0000000000000006
> Jul 18 14:35:13 jh-mba kernel: R10: ffff9a522c99e6c0 R11: ffff9a532c99e030
> R12: ffff9a524fc522b0
> Jul 18 14:35:13 jh-mba kernel: R13: ffff9a52658d3708 R14: ffff9a524fc52000
> R15: 0000000000000000
> Jul 18 14:35:13 jh-mba kernel: FS: 00007ff68934e980(0000)
> GS:ffff9a5267280000(0000) knlGS:0000000000000000
> Jul 18 14:35:13 jh-mba kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
> 0000000080050033
> Jul 18 14:35:13 jh-mba kernel: CR2: 0000000000000060 CR3: 0000000226ce6002
> CR4: 00000000001606e0
> Jul 18 14:35:13 jh-mba kernel: Fixing recursive fault but reboot is needed!
> Jul 18 14:35:10 jh-mba audit[3163]: SYSCALL arch=c000003e syscall=263 a0=4
> a1=55edb4e490b3 a2=0 a3=4 items=2 ppid=1 pid=3163 auid=4294967295 uid=0 gid=0
> euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295
> comm="systemd-user-ru" exe="/usr/lib/systemd/systemd-user-runtime-dir"
> subj=system_u:system_r:systemd_user_runtime_dir_t:s0 key=(null)
> Jul 18 14:35:14 jh-mba systemd[1]: systemd-hostnamed.service: Succeeded.
> Jul 18 14:35:14 jh-mba audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295
> ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=systemd-hostnamed
> comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=?
> res=success'
>
> Line information from the debian linux-image-5.7.0-1-amd64 (version 5.7.6-1)
> package, duplicates ommitted:
>
> Reading symbols from /usr/lib/debug/boot/vmlinux-5.7.0-1-amd64...
> (gdb) l *d_path+0x35
> 0xffffffff812dcee5 is in d_path (fs/d_path.c:275).
> 270 *
> 271 * Some pseudo inodes are mountable. When they are mounted
> 272 * path->dentry == path->mnt->mnt_root. In that case don't
> call d_dname
> 273 * and instead have d_path return the mounted path.
> 274 */
> 275 if (path->dentry->d_op && path->dentry->d_op->d_dname &&
> 276 (!IS_ROOT(path->dentry) || path->dentry !=
> path->mnt->mnt_root))
> 277 return path->dentry->d_op->d_dname(path->dentry, buf,
> buflen);
> 278
> 279 rcu_read_lock();
> (gdb) l *audit_log_d_path+0x75
> 0xffffffff8114f175 is in audit_log_d_path (kernel/audit.c:2046).
> 2041 pathname = kmalloc(PATH_MAX+11, ab->gfp_mask);
> 2042 if (!pathname) {
> 2043 audit_log_string(ab, "<no_memory>");
> 2044 return;
> 2045 }
> 2046 p = d_path(path, pathname, PATH_MAX+11);
> 2047 if (IS_ERR(p)) { /* Should never happen since we send
> PATH_MAX */
> 2048 /* FIXME: can we save some information here? */
> 2049 audit_log_string(ab, "<too_long>");
> 2050 } else
> (gdb) l *audit_log_exit+0x63d
> 0xffffffff8115445d is in audit_log_exit (kernel/auditsc.c:1342).
> 1337 case 0:
> 1338 /* name was specified as a relative path and
> the
> 1339 * directory component is the cwd
> 1340 */
> 1341 audit_log_d_path(ab, " name=", &context->pwd);
> 1342 break;
> 1343 default:
> 1344 /* log the name's directory component */
> 1345 audit_log_format(ab, " name=");
> 1346 audit_log_n_untrustedstring(ab, n->name->name,
> (gdb) l *audit_filter_inodes+0x2e
> 0xffffffff81155e2e is in audit_filter_inodes (kernel/auditsc.c:835).
> 830 */
> 831 void audit_filter_inodes(struct task_struct *tsk, struct
> audit_context *ctx)
> 832 {
> 833 struct audit_names *n;
> 834
> 835 if (auditd_test_task(tsk))
> 836 return;
> 837
> 838 rcu_read_lock();
> 839
> (gdb) l *__audit_syscall_exit+0x23b
> 0xffffffff8115661b is in __audit_syscall_exit (kernel/auditsc.c:1710).
> 1705
> 1706 audit_filter_syscall(current, context,
> 1707
> &audit_filter_list[AUDIT_FILTER_EXIT]);
> 1708 audit_filter_inodes(current, context);
> 1709 if (context->current_state == AUDIT_RECORD_CONTEXT)
> 1710 audit_log_exit();
> 1711 }
> 1712
> 1713 context->in_syscall = 0;
> 1714 context->prio = context->state == AUDIT_RECORD_CONTEXT ?
> ~0ULL : 0;
> (gdb) l *syscall_slow_exit_work+0x117
> 0xffffffff81005197 is in syscall_slow_exit_work (include/linux/audit.h:316).
> 311 {
> 312 if (unlikely(audit_context())) {
> 313 int success = is_syscall_success(pt_regs);
> 314 long return_code = regs_return_value(pt_regs);
> 315
> 316 __audit_syscall_exit(success, return_code);
> 317 }
> 318 }
> 319 static inline struct filename *audit_reusename(const __user char
> *name)
> 320 {
> (gdb) l *do_syscall_64+0x10e
> 0xffffffff8100543e is in do_syscall_64 (arch/x86/entry/common.c:276).
> warning: Source file is more recent than executable.
> 271 /*
> 272 * First do one-time work. If these work items are enabled,
> we
> 273 * want to run them exactly once per syscall exit with IRQs
> on.
> 274 */
> 275 if (unlikely(cached_flags & SYSCALL_EXIT_WORK_FLAGS))
> 276 syscall_slow_exit_work(regs, cached_flags);
> 277
> 278 local_irq_disable();
> 279 prepare_exit_to_usermode(regs);
> 280 }
> (gdb) l *entry_SYSCALL_64_after_hwframe+0x44
> 0xffffffff8180008c is at
> /build/linux-iTqI2R/linux-5.7.6/arch/x86/entry/entry_64.S:184.
> 179 /build/linux-iTqI2R/linux-5.7.6/arch/x86/entry/entry_64.S: No such
> file or directory.
> (gdb) l *__audit_free+0x233
> 0xffffffff81156283 is in __audit_free (kernel/auditsc.c:1602).
> 1597
> 1598 audit_filter_syscall(tsk, context,
> 1599
> &audit_filter_list[AUDIT_FILTER_EXIT]);
> 1600 audit_filter_inodes(tsk, context);
> 1601 if (context->current_state == AUDIT_RECORD_CONTEXT)
> 1602 audit_log_exit();
> 1603 }
> 1604
> 1605 audit_set_context(tsk, NULL);
> 1606 audit_free_context(context);
> (gdb) l *do_exit+0x8d3
> 0xffffffff81088ce3 is in do_exit (include/linux/audit.h:301).
> 296 return !p || *(int *)p;
> 297 }
> 298 static inline void audit_free(struct task_struct *task)
> 299 {
> 300 if (unlikely(task->audit_context))
> 301 __audit_free(task);
> 302 }
> 303 static inline void audit_syscall_entry(int major, unsigned long a0,
> 304 unsigned long a1, unsigned
> long a2,
> 305 unsigned long a3)
> (gdb) l *syscall_slow_exit_work+0x117
> 0xffffffff81005197 is in syscall_slow_exit_work (include/linux/audit.h:316).
> 311 {
> 312 if (unlikely(audit_context())) {
> 313 int success = is_syscall_success(pt_regs);
> 314 long return_code = regs_return_value(pt_regs);
> 315
> 316 __audit_syscall_exit(success, return_code);
> 317 }
> 318 }
> 319 static inline struct filename *audit_reusename(const __user char
> *name)
> 320 {
> (gdb) l *rewind_stack_do_exit+0x17
> (gdb)
>
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