[LU-5365] invalid pool name accepted when setting stripe information

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Affects Version/s: Lustre 2.6.0
• Severity: 3
• Assignee: Jian Yu
• Reporter: Ned Bass (Inactive)

Description

When striping information is set for a file, the kernel will accept the name of an OST pool which does not exist. The lfs utility validates the pool name in user space, but this can be bypassed by using the ioctl() or fsetxattr() interfaces directly. See attached program.

$  bass6@t222 >
gcc -I lustre/include -I libcfs/include pool_test.c lustre/utils/liblustreapi.a
$  bass6@t222 >
sudo ./a.out /mnt/lustre/`mktemp -u XXXX` /mnt/lustre/`mktemp -u XXXX` asdf
a.out: poolname 'asdf' accepted via ioctl() for file /mnt/lustre/uchD
a.out: poolname 'asdf' accepted via fsetxattr() for file /mnt/lustre/Ba5t