[GIT PULL] selinux/selinux-pr-20250323

[Paul Moore]

Linus,

Here is the SELinux pull request for the Linux v6.15 merge window, the
highlights are below:

- Add additional SELinux access controls for kernel file reads/loads

  The SELinux kernel file read/load access controls were never updated
  beyond the initial kernel module support, this pull request adds
  support for firmware, kexec, policies, and x.509 certificates.

- Add support for wildcards in network interface names

  There are a number of userspace tools which auto-generate network
  interface names using some pattern of <XXXX>-<NN> where <XXXX> is
  a fixed string, e.g. "podman", and <NN> is a increasing counter.
  Supporting wildcards in the SELinux policy for network interfaces
  simplifies the policy associted with these interfaces.

- Fix a potential problem in the kernel read file SELinux code

  SELinux should always check the file label in the
  security_kernel_read_file() LSM hook, regardless of if the file is
  being read in chunks.  Unfortunately, the existing code only
  considered the file label on the first chunk; this pull request
  fixes this problem.
  
  There is more detail in the individual commit, but thankfully the
  existing code didn't expose a bug due to multi-stage reads only
  taking place in one driver, and that driver loading a file type
  that isn't targeted by the SELinux policy.

- Fix the subshell error handling in the example policy loader

  Minor fix to SELinux example policy loader in scripts/selinux due
  to an undesired interaction with subshells and errexit.

Please merge,
-Paul

--
The following changes since commit 2014c95afecee3e76ca4a56956a936e23283f05b:

  Linux 6.14-rc1 (2025-02-02 15:39:26 -0800)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux.git
    tags/selinux-pr-20250323

for you to fetch changes up to a3d3043ef24ac750f05a164e48f3d0833ebf0252:

  selinux: get netif_wildcard policycap from policy instead of cache
    (2025-03-17 16:22:04 -0400)

----------------------------------------------------------------
selinux/stable-6.15 PR 20250323
----------------------------------------------------------------

"Kipp N. Davis" (1):
      selinux: add permission checks for loading other kinds of kernel
         files

Christian Göttsche (2):
      selinux: support wildcard network interface names
      selinux: get netif_wildcard policycap from policy instead of cache

Paul Moore (1):
      selinux: always check the file label in selinux_kernel_read_file()

Tanya Agarwal (1):
      selinux: fix spelling error

Tim Schumacher (1):
      selinux: Chain up tool resolving errors in install_policy.sh

 scripts/selinux/install_policy.sh          |   15 ++---
 security/selinux/avc.c                     |    2 
 security/selinux/hooks.c                   |   58 +++++++++++++++++----
 security/selinux/include/classmap.h        |    4 +
 security/selinux/include/policycap.h       |    1 
 security/selinux/include/policycap_names.h |    1 
 security/selinux/include/security.h        |    8 ++
 security/selinux/ss/services.c             |   15 ++++-
 8 files changed, 79 insertions(+), 25 deletions(-)

--
paul-moore.com