Mksquashfs crash when handling directories with certain extended attributes.
Matviy opened this issue · comments
I have a directory /var/lib/tpm2-tss/system/keystore on RH9, it has the following extended attributes:
[root@test system]# getfattr -dm - keystore/
# file: keystore/
security.selinux="system_u:object_r:var_lib_t:s0"
system.posix_acl_default=0sAgAAAAEABwD/////BAAHAP////8IAAcAOwAAABAABwD/////IAAFAP////8=
When attempting to mksquashfs that directory with the latest 4.6, mksquashfs crashes.
Parallel mksquashfs: Using 4 processors
Creating 4.0 filesystem on /dev/loop1, block size 131072.
Unrecognised xattr prefix ��+
free(): invalid pointer
Aborted
Seems like it does not like the binary data in the posix_acl_default extended attribute. Excluding that specific extended attribute using the new features in 4.6 solves the issue.
This issue is not present on mksquashfs pre 4.6.
The latest 4.6.1 seems to fix this issue. Closing.