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Merge tag 'landlock_v34' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull Landlock LSM from James Morris:
"Add Landlock, a new LSM from Mickaël Salaün.
Briefly, Landlock provides for unprivileged application sandboxing.
From Mickaël's cover letter:
"The goal of Landlock is to enable to restrict ambient rights (e.g.
global filesystem access) for a set of processes. Because Landlock
is a stackable LSM [1], it makes possible to create safe security
sandboxes as new security layers in addition to the existing
system-wide access-controls. This kind of sandbox is expected to
help mitigate the security impact of bugs or unexpected/malicious
behaviors in user-space applications. Landlock empowers any
process, including unprivileged ones, to securely restrict
themselves.
Landlock is inspired by seccomp-bpf but instead of filtering
syscalls and their raw arguments, a Landlock rule can restrict the
use of kernel objects like file hierarchies, according to the
kernel semantic. Landlock also takes inspiration from other OS
sandbox mechanisms: XNU Sandbox, FreeBSD Capsicum or OpenBSD
Pledge/Unveil.
In this current form, Landlock misses some access-control features.
This enables to minimize this patch series and ease review. This
series still addresses multiple use cases, especially with the
combined use of seccomp-bpf: applications with built-in sandboxing,
init systems, security sandbox tools and security-oriented APIs [2]"
The cover letter and v34 posting is here:
https://lore.kernel.org/linux-security-module/20210422154123.13086-1-mic@digikod.net/
See also:
https://landlock.io/
This code has had extensive design discussion and review over several
years"
Link: https://lore.kernel.org/lkml/50db058a-7dde-441b-a7f9-f6837fe8b69f@schaufler-ca.com/ [1]
Link: https://lore.kernel.org/lkml/f646e1c7-33cf-333f-070c-0a40ad0468cd@digikod.net/ [2]
* tag 'landlock_v34' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
landlock: Enable user space to infer supported features
landlock: Add user and kernel documentation
samples/landlock: Add a sandbox manager example
selftests/landlock: Add user space tests
landlock: Add syscall implementations
arch: Wire up Landlock syscalls
fs,security: Add sb_delete hook
landlock: Support filesystem access-control
LSM: Infrastructure management of the superblock
landlock: Add ptrace restrictions
landlock: Set up the security framework and manage credentials
landlock: Add ruleset and domain management
landlock: Add object management
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| syscalls | ||
| .gitignore | ||
| alternative.c | ||
| asm-offsets.c | ||
| audit.c | ||
| cache.c | ||
| compat_audit.c | ||
| drivers.c | ||
| entry.S | ||
| firmware.c | ||
| ftrace.c | ||
| hardware.c | ||
| head.S | ||
| hpmc.S | ||
| inventory.c | ||
| irq.c | ||
| jump_label.c | ||
| kexec_file.c | ||
| kexec.c | ||
| kgdb.c | ||
| kprobes.c | ||
| Makefile | ||
| module.c | ||
| pa7300lc.c | ||
| pacache.S | ||
| parisc_ksyms.c | ||
| patch.c | ||
| pci-dma.c | ||
| pci.c | ||
| pdc_chassis.c | ||
| pdc_cons.c | ||
| pdt.c | ||
| perf_asm.S | ||
| perf_images.h | ||
| perf.c | ||
| process.c | ||
| processor.c | ||
| ptrace.c | ||
| real2.S | ||
| relocate_kernel.S | ||
| setup.c | ||
| signal.c | ||
| signal32.c | ||
| signal32.h | ||
| smp.c | ||
| stacktrace.c | ||
| sys_parisc.c | ||
| sys_parisc32.c | ||
| syscall.S | ||
| time.c | ||
| topology.c | ||
| traps.c | ||
| unaligned.c | ||
| unwind.c | ||
| vmlinux.lds.S | ||