kernel.git/security/apparmor/label.c, branch linux-5.7.y

apparmor: fix nnp subset test for unconfined

2020-06-24T15:48:32Z

[ Upstream commit 3ed4aaa94fc07db3cd0c91be95e3e1b9782a2710 ] The subset test is not taking into account the unconfined exception which will cause profile transitions in the stacked confinement case to fail when no_new_privs is applied. This fixes a regression introduced in the fix for https://bugs.launchpad.net/bugs/1839037 BugLink: https://bugs.launchpad.net/bugs/1844186 Signed-off-by: John Johansen Signed-off-by: Sasha Levin

apparmor: fix introspection of of task mode for unconfined tasks

2020-06-24T15:48:30Z

[ Upstream commit dd2569fbb053719f7df7ef8fdbb45cf47156a701 ] Fix two issues with introspecting the task mode. 1. If a task is attached to a unconfined profile that is not the ns->unconfined profile then. Mode the mode is always reported as - $ ps -Z LABEL PID TTY TIME CMD unconfined 1287 pts/0 00:00:01 bash test (-) 1892 pts/0 00:00:00 ps instead of the correct value of (unconfined) as shown below $ ps -Z LABEL PID TTY TIME CMD unconfined 2483 pts/0 00:00:01 bash test (unconfined) 3591 pts/0 00:00:00 ps 2. if a task is confined by a stack of profiles that are unconfined the output of label mode is again the incorrect value of (-) like above, instead of (unconfined). This is because the visibile profile count increment is skipped by the special casing of unconfined. Fixes: f1bd904175e8 ("apparmor: add the base fns() for domain labels") Signed-off-by: John Johansen Signed-off-by: Sasha Levin

Merge tag 'apparmor-pr-2019-12-03' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor

2019-12-03T20:51:35Z

Pull apparmor updates from John Johansen: "Features: - increase left match history buffer size to provide improved conflict resolution in overlapping execution rules. - switch buffer allocation to use a memory pool and GFP_KERNEL where possible. - add compression of policy blobs to reduce memory usage. Cleanups: - fix spelling mistake "immutible" -> "immutable" Bug fixes: - fix unsigned len comparison in update_for_len macro - fix sparse warning for type-casting of current->real_cred" * tag 'apparmor-pr-2019-12-03' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor: apparmor: make it so work buffers can be allocated from atomic context apparmor: reduce rcu_read_lock scope for aa_file_perm mediation apparmor: fix wrong buffer allocation in aa_new_mount apparmor: fix unsigned len comparison with less than zero apparmor: increase left match history buffer size apparmor: Switch to GFP_KERNEL where possible apparmor: Use a memory pool instead per-CPU caches apparmor: Force type-casting of current->real_cred apparmor: fix spelling mistake "immutible" -> "immutable" apparmor: fix blob compression when ns is forced on a policy load apparmor: fix missing ZLIB defines apparmor: fix blob compression build failure on ppc apparmor: Initial implementation of raw policy blob compression

apparmor: fix unsigned len comparison with less than zero

2019-11-23T00:37:54Z

The sanity check in macro update_for_len checks to see if len is less than zero, however, len is a size_t so it can never be less than zero, so this sanity check is a no-op. Fix this by making len a ssize_t so the comparison will work and add ulen that is a size_t copy of len so that the min() macro won't throw warnings about comparing different types. Addresses-Coverity: ("Macro compares unsigned to 0") Fixes: f1bd904175e8 ("apparmor: add the base fns() for domain labels") Signed-off-by: Colin Ian King Signed-off-by: John Johansen

locking/lockdep: Rename lockdep_assert_held_exclusive() -> lockdep_assert_held_write()

2019-06-17T10:09:24Z

All callers of lockdep_assert_held_exclusive() use it to verify the correct locking state of either a semaphore (ldisc_sem in tty, mmap_sem for perf events, i_rwsem of inode for dax) or rwlock by apparmor. Thus it makes sense to rename _exclusive to _write since that's the semantics callers care. Additionally there is already lockdep_assert_held_read(), which this new naming is more consistent with. No functional changes. Signed-off-by: Nikolay Borisov Signed-off-by: Peter Zijlstra (Intel) Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: https://lkml.kernel.org/r/20190531100651.3969-1-nborisov@suse.com Signed-off-by: Ingo Molnar

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441

2019-06-05T15:37:17Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 315 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Armijn Hemel Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190115.503150771@linutronix.de Signed-off-by: Greg Kroah-Hartman

apparmor: fixup secid map conversion to using IDR

2018-06-07T08:50:49Z

The IDR conversion did not handle an error case for when allocating a mapping fails, and it did not ensure that mappings did not allocate or use a 0 value, which is used as an invalid secid. Which is used when a mapping fails. Fixes: 3ae7eb49a2be ("apparmor: Use an IDR to allocate apparmor secids") Signed-off-by: John Johansen

apparmor: fix typo "replace"

2018-05-03T07:49:35Z

Signed-off-by: Zygmunt Krynicki Acked-by: Christian Boltz Signed-off-by: John Johansen

apparmor: fix typo "comparison"

2018-05-03T07:48:58Z

Signed-off-by: Zygmunt Krynicki Acked-by: Christian Boltz Signed-off-by: John Johansen

apparmor: add support for mapping secids and using secctxes

2018-05-02T07:48:55Z

Use a radix tree to provide a map between the secid and the label, and along with it a basic ability to provide secctx conversion. Shared/cached secctx will be added later. Signed-off-by: John Johansen