On 16/04/06, Paul Moore wrote: > On Wed, Apr 6, 2016 at 9:53 AM, Lev Stipakov <[email protected]> wrote: > > Hello, > > > > Sometimes audit of "execve" syscall generates events with truncated "comm" > > values, for example: > > > > type=SYSCALL msg=audit(1459950426.152:1097081): arch=c000003e syscall=59 > > success=yes exit=0 a0=35bae3e a1=1bc0cf0 a2=2b09280 a3=58c items=2 ppid=2183 > > pid=26566 auid=4294967295 uid=1001 gid=1001 euid=1001 > > suid=1001 fsuid=1001 egid=1001 sgid=1001 fsgid=1001 tty=(none) > > ses=4294967295 comm="gnome-calculato" exe="/usr/bin/gnome-calculator" > > > > Why "comm" is "gnome-calculato" and not "/usr/bin/gnome-calculator" ? > > This is due to a limitation in how the kernel records the comm field > and isn't likely to change.
It is set in the kernel, in file include/linux/sched.h, struct task_struct, member comm, with length TASK_COMM_LEN which is 16. Changing it would break all kinds of stuff, so as was mentioned, PROCTITLE is used to get the kind of information you seek. > paul moore - RGB -- Richard Guy Briggs <[email protected]> Senior Software Engineer, Kernel Security, AMER ENG Base Operating Systems, Red Hat Remote, Ottawa, Canada Voice: +1.647.777.2635, Internal: (81) 32635, Alt: +1.613.693.0684x3545 -- Linux-audit mailing list [email protected] https://www.redhat.com/mailman/listinfo/linux-audit
