Hello - This is expected behavior. When a profile requested in the
changeprofile operation has not been loaded into the kernel, the write()
on /proc/PID/attr/current will fail with errno set to ENOENT.
This is documented in the aa_change_profile(2) man page:
ENOENT
The specified profile does not exist, or is not visible from the
current Namespace.
** Changed in: apparmor (Ubuntu)
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1496877
Title:
apparmor profile fails to load in Ubuntu 15.04
Status in apparmor package in Ubuntu:
Invalid
Bug description:
With the latest Ubuntu 15.04 Vivid( Kernel 3.19), I tried to ran the
sample program for aa_change_profile from the man page. Whenever I
tried to execute the program, it says No such file or directory. I ran
strace for this program, whenever aa_change_profile is called, looks
like changeprofile is prefixed with profile. Not sure whether it is
intended from asprintf called from aa_change_profile
strace output
write(3, "changeprofile i_cant_be_trusted_"..., 39) = -1 ENOENT (No such file
or directory)
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