Jann Horn ecf8e185a2 apparmor: don't try to replace stale label in ptraceme check ...

[ Upstream commit ca3fde5214e1d24f78269b337d3f22afd6bf445e ]

begin_current_label_crit_section() must run in sleepable context because
when label_is_stale() is true, aa_replace_current_label() runs, which uses
prepare_creds(), which can sleep.

Until now, the ptraceme access check (which runs with tasklist_lock held)
violated this rule.

Fixes: b2d09ae449ced ("apparmor: move ptrace checks to using labels")
Reported-by: Cyrill Gorcunov <gorcunov@gmail.com>
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-06-30 15:37:57 -04:00

..

include

apparmor: don't try to replace stale label in ptrace access check

2020-01-27 14:46:04 +01:00

.gitignore

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apparmorfs.c

apparmor: Fix aa_label refcnt leak in policy_update

2020-05-27 16:43:07 +02:00

audit.c

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capability.c

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context.c

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crypto.c

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domain.c

apparmor: Fix aa_label_build() error handling for failed merges

2019-03-13 14:03:16 -07:00

file.c

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ipc.c

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Kconfig

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label.c

apparmor: fix introspection of of task mode for unconfined tasks

2020-06-25 15:41:50 +02:00

lib.c

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lsm.c

apparmor: don't try to replace stale label in ptraceme check

2020-06-30 15:37:57 -04:00

Makefile

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match.c

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mount.c

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nulldfa.in

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path.c

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policy_ns.c

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policy_unpack.c

apparmor: enforce nullbyte at end of tag string

2019-06-25 11:36:51 +08:00

policy.c

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procattr.c

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resource.c

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secid.c

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