Fedora Account System
Red Hat Associate
Red Hat Customer
After some fix in kernel, `listxattr(3)` now lists `security.selinux` but this attribute cannot be set because it is apparently read-only and synthesised by the kernel: # strace -s 100 --trace='/xattr' cp --preserve=xattr a b flistxattr(3, NULL, 0) = 33 flistxattr(3, "system.nfs4_acl\0security.selinux\0", 33) = 33 fgetxattr(3, "system.nfs4_acl", NULL, 0) = 80 fgetxattr(3, "system.nfs4_acl", "\0\0\0\3\0\0\0\0\0\0\0\0\0\26\1\207\0\0\0\6OWNER@\0\0\0\0\0\0\0\0\0\0\0\22\0\201\0\0\0\6GROUP@\0\0\0\0\0\0\0\0\0\0\0\22\0\201\0\0\0\tEVERYONE@\0\0", 80) = 80 fsetxattr(4, "system.nfs4_acl", "\0\0\0\3\0\0\0\0\0\0\0\0\0\26\1\207\0\0\0\6OWNER@\0\0\0\0\0\0\0\0\0\0\0\22\0\201\0\0\0\6GROUP@\0\0\0\0\0\0\0\0\0\0\0\22\0\201\0\0\0\tEVERYONE@\0\0", 80, 0) = 0 fgetxattr(3, "security.selinux", NULL, 0) = 27 fgetxattr(3, "security.selinux", "system_u:object_r:nfs_t:s0", 27) = 27 fsetxattr(4, "security.selinux", "system_u:object_r:nfs_t:s0", 27, 0) = -1 EOPNOTSUPP (Operation not supported) cp: setting attributes for 'b': Operation not supported Well, the error itself is correct, `fsetxattr` failed, and `--preserve=mode` can be used as a workaround if the reason for using `--preserve=xattr` were NFSv4 ACLs, but it still looks quite annoying. The destination file will have `system_u:object_r:nfs_t:s0` synthesised anyway so despite the error it will end up with the same xattrs as the source... Originally reported in bz2397467#c5.
This message is a reminder that Fedora Linux 42 is nearing its end of life. Fedora will stop maintaining and issuing updates for Fedora Linux 42 on 2026-05-13. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a 'version' of '42'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, change the 'version' to a later Fedora Linux version. Note that the version field may be hidden. Click the "Show advanced fields" button if you do not see it. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora Linux 42 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora Linux, you are encouraged to change the 'version' to a later version prior to this bug being closed.
On a second thought, the current behaviour seems to be correct.