Merge pull request PacktPublishing#1 from gregbuchholz/lkm_script_perms

kaiwan · web-flow · commit bc36e217c158 · 2021-08-31T08:01:22.000+05:30
The "lkm" script fails on dmesg permissions
diff --git a/lkm b/lkm
@@ -49,5 +49,7 @@ runcmd "make || exit 1"
 }
 
 runcmd "sudo insmod ./$1.ko && lsmod|grep $1"
-runcmd dmesg
+# Ubuntu 20.10 onward has enabled CONFIG_SECURITY_DMESG_RESTRICT ! That's good for security
+# So we need to 'sudo' dmesg; thanks to @gregbuchholz for pointing this out
+runcmd "sudo dmesg"
 exit 0

Original file line number	Diff line number	Diff line change
`@@ -49,5 +49,7 @@ runcmd "make \|\| exit 1"`
`49`	`49`	`}`
`50`	`50`
`51`	`51`	`runcmd "sudo insmod ./$1.ko && lsmod\|grep $1"`
`52`		`-runcmd dmesg`
	`52`	`+# Ubuntu 20.10 onward has enabled CONFIG_SECURITY_DMESG_RESTRICT ! That's good for security`
	`53`	`+# So we need to 'sudo' dmesg; thanks to @gregbuchholz for pointing this out`
	`54`	`+runcmd "sudo dmesg"`
`53`	`55`	`exit 0`