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UPSTREAM: seccomp: Report number of loaded filters in /proc/$pid/status

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A common question asked when debugging seccomp filters is "how many
filters are attached to your process?" Provide a way to easily answer
this question through /proc/$pid/status with a "Seccomp_filters" line.

Signed-off-by: Kees Cook <keescook@chromium.org>
(cherry picked from commit c818c03b661cd769e035e41673d5543ba2ebda64)
Signed-off-by: Jeff Vander Stoep <jeffv@google.com>
Bug: 176068146
Change-Id: Ib189ea77511a6088d5d328706c77c88709d8d63e
This commit is contained in:
Kees Cook 2020-05-13 14:11:26 -07:00 • committed by Nolen Johnson
commit 9db11ce119
4 changed files with 10 additions and 0 deletions
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3
init/init_task.c
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@ -193,6 +193,9 @@ struct task_struct init_task
#ifdef CONFIG_SECURITY
.security = NULL,
#endif
#ifdef CONFIG_SECCOMP
.seccomp = { .filter_count = ATOMIC_INIT(0) },
#endif
};
EXPORT_SYMBOL(init_task);