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Yafang Shao d4ee4ac395 security: replace memcpy() with get_task_comm() 
Quoted from Linus [0]:

  selinux never wanted a lock, and never wanted any kind of *consistent*
  result, it just wanted a *stable* result.

Using get_task_comm() to read the task comm ensures that the name is
always NUL-terminated, regardless of the source string. This approach also
facilitates future extensions to the task comm.

Link: https://lkml.kernel.org/r/20241007144911.27693-4-laoar.shao@gmail.com
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Link: https://lore.kernel.org/all/CAHk-=wivfrF0_zvf+oj6==Sh=-npJooP8chLPEfaFV0oNYTTBA@mail.gmail.com/ [0]
Acked-by: Paul Moore <paul@paul-moore.com>
Cc: James Morris <jmorris@namei.org>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Cc: Stephen Smalley <stephen.smalley.work@gmail.com>
Cc: Ondrej Mosnacek <omosnace@redhat.com>
Cc: Alejandro Colomar <alx@kernel.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Airlie <airlied@gmail.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Eric Paris <eparis@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Matus Jokay <matus.jokay@stuba.sk>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Quentin Monnet <qmo@kernel.org>
Cc: Simon Horman <horms@kernel.org>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-11-05 17:12:29 -08:00
..
apparmor move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
bpf bpf: lsm: Set bpf_lsm_blob_sizes.lbs_task to 0 2024-09-11 10:11:36 -07:00
integrity struct fd layout change (and conversion to accessor helpers) 2024-09-23 09:35:36 -07:00
ipe ipe: fallback to platform keyring also if key in trusted keyring is rejected 2024-10-18 12:14:53 -07:00
keys move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
landlock Landlock updates for v6.12-rc1 2024-09-24 10:40:11 -07:00
loadpin introduce fd_file(), convert all accessors to it. 2024-08-12 22:00:43 -04:00
lockdown lockdown: Make lockdown_lsmid static 2024-08-15 12:11:42 -04:00
safesetid lsm: mark the lsm_id variables are marked as static 2023-11-12 22:54:42 -05:00
selinux security: replace memcpy() with get_task_comm() 2024-11-05 17:12:29 -08:00
smack lsm/stable-6.12 PR 20240923 2024-09-24 10:18:15 -07:00
tomoyo tomoyo: revert CONFIG_SECURITY_TOMOYO_LKM support 2024-10-04 11:41:22 -04:00
yama sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
commoncap.c lsm: Refactor return value of LSM hook vm_enough_memory 2024-07-31 14:46:51 -04:00
device_cgroup.c device_cgroup: Fix kernel-doc warnings in device_cgroup 2023-06-21 09:30:49 -04:00
inode.c lsm: Use IS_ERR_OR_NULL() helper function 2024-08-29 11:12:13 -04:00
Kconfig lsm/stable-6.12 PR 20240911 2024-09-16 18:19:47 +02:00
Kconfig.hardening hardening: Adjust dependencies in selection of MODVERSIONS 2024-09-28 13:56:03 -07:00
lsm_audit.c security: replace memcpy() with get_task_comm() 2024-11-05 17:12:29 -08:00
lsm_syscalls.c lsm: use 32-bit compatible data types in LSM syscalls 2024-03-14 11:31:26 -04:00
Makefile lsm: add IPE lsm 2024-08-19 22:36:26 -04:00
min_addr.c sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
security.c bcachefs: do not use PF_MEMALLOC_NORECLAIM 2024-10-09 12:47:18 -07:00