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| author | Kees Cook <keescook@chromium.org> | 2020-05-13 23:11:26 +0200 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2020-07-11 01:01:51 +0200 |
| commit | c818c03b661cd769e035e41673d5543ba2ebda64 (patch) | |
| tree | ceb9cf9666ce0e0e3964c1ff1a0a5949de471cf6 /fs/proc | |
| parent | selftests/seccomp: Set NNP for TSYNC ESRCH flag test (diff) | |
| download | linux-c818c03b661cd769e035e41673d5543ba2ebda64.tar.xz linux-c818c03b661cd769e035e41673d5543ba2ebda64.zip | |
seccomp: Report number of loaded filters in /proc/$pid/status
A common question asked when debugging seccomp filters is "how many
filters are attached to your process?" Provide a way to easily answer
this question through /proc/$pid/status with a "Seccomp_filters" line.
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'fs/proc')
| -rw-r--r-- | fs/proc/array.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/proc/array.c b/fs/proc/array.c index 55ecbeb3a721..65ec2029fa80 100644 --- a/fs/proc/array.c +++ b/fs/proc/array.c @@ -341,6 +341,8 @@ static inline void task_seccomp(struct seq_file *m, struct task_struct *p) seq_put_decimal_ull(m, "NoNewPrivs:\t", task_no_new_privs(p)); #ifdef CONFIG_SECCOMP seq_put_decimal_ull(m, "\nSeccomp:\t", p->seccomp.mode); + seq_put_decimal_ull(m, "\nSeccomp_filters:\t", + atomic_read(&p->seccomp.filter_count)); #endif seq_puts(m, "\nSpeculation_Store_Bypass:\t"); switch (arch_prctl_spec_ctrl_get(p, PR_SPEC_STORE_BYPASS)) { |