From: YiFei Zhu <zhuyifei1999@gmail.com> To: containers@lists.linux-foundation.org Cc: Andrea Arcangeli <aarcange@redhat.com>, Giuseppe Scrivano <gscrivan@redhat.com>, Valentin Rothberg <vrothber@redhat.com>, Kees Cook <keescook@chromium.org>, Jann Horn <jannh@google.com>, YiFei Zhu <yifeifz2@illinois.edu>, Tobin Feldman-Fitzthum <tobin@ibm.com>, linux-kernel@vger.kernel.org, Andy Lutomirski <luto@amacapital.net>, Hubertus Franke <frankeh@us.ibm.com>, Jack Chen <jianyan2@illinois.edu>, Dimitrios Skarlatos <dskarlat@cs.cmu.edu>, Josep Torrellas <torrella@illinois.edu>, Will Drewry <wad@chromium.org>, bpf@vger.kernel.org, Tianyin Xu <tyxu@illinois.edu> Subject: [PATCH seccomp 4/6] seccomp/cache: Lookup syscall allowlist for fast path Date: Thu, 24 Sep 2020 07:06:44 -0500 [thread overview] Message-ID: <6c754a336aef916e3a69af8b8b47834317f4dc60.1600946701.git.yifeifz2@illinois.edu> (raw) In-Reply-To: <cover.1600946701.git.yifeifz2@illinois.edu> From: YiFei Zhu <yifeifz2@illinois.edu> The fast (common) path for seccomp should be that the filter permits the syscall to pass through, and failing seccomp is expected to be an exceptional case; it is not expected for userspace to call a denylisted syscall over and over. This first finds the current allow bitmask by iterating through syscall_arches[] array and comparing it to the one in struct seccomp_data; this loop is expected to be unrolled. It then does a test_bit against the bitmask. If the bit is set, then there is no need to run the full filter; it returns SECCOMP_RET_ALLOW immediately. Co-developed-by: Dimitrios Skarlatos <dskarlat@cs.cmu.edu> Signed-off-by: Dimitrios Skarlatos <dskarlat@cs.cmu.edu> Signed-off-by: YiFei Zhu <yifeifz2@illinois.edu> --- kernel/seccomp.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/kernel/seccomp.c b/kernel/seccomp.c index 7c286d66f983..5b1bd8329e9c 100644 --- a/kernel/seccomp.c +++ b/kernel/seccomp.c @@ -167,6 +167,12 @@ static inline void seccomp_cache_inherit(struct seccomp_filter *sfilter, const struct seccomp_filter *prev) { } + +static inline bool seccomp_cache_check(const struct seccomp_filter *sfilter, + const struct seccomp_data *sd) +{ + return false; +} #endif /* CONFIG_SECCOMP_CACHE_NR_ONLY */ /** @@ -321,6 +327,34 @@ static int seccomp_check_filter(struct sock_filter *filter, unsigned int flen) return 0; } +#ifdef CONFIG_SECCOMP_CACHE_NR_ONLY +/** + * seccomp_cache_check - lookup seccomp cache + * @sfilter: The seccomp filter + * @sd: The seccomp data to lookup the cache with + * + * Returns true if the seccomp_data is cached and allowed. + */ +static bool seccomp_cache_check(const struct seccomp_filter *sfilter, + const struct seccomp_data *sd) +{ + int syscall_nr = sd->nr; + int arch; + + if (unlikely(syscall_nr < 0 || syscall_nr >= NR_syscalls)) + return false; + + for (arch = 0; arch < ARRAY_SIZE(syscall_arches); arch++) { + if (likely(syscall_arches[arch] == sd->arch)) + return test_bit(syscall_nr, + sfilter->cache.syscall_ok[arch]); + } + + WARN_ON_ONCE(true); + return false; +} +#endif /* CONFIG_SECCOMP_CACHE_NR_ONLY */ + /** * seccomp_run_filters - evaluates all seccomp filters against @sd * @sd: optional seccomp data to be passed to filters @@ -343,6 +377,9 @@ static u32 seccomp_run_filters(const struct seccomp_data *sd, if (WARN_ON(f == NULL)) return SECCOMP_RET_KILL_PROCESS; + if (seccomp_cache_check(f, sd)) + return SECCOMP_RET_ALLOW; + /* * All filters in the list are evaluated and the lowest BPF return * value always takes priority (ignoring the DATA). -- 2.28.0 _______________________________________________ Containers mailing list Containers@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/containers
WARNING: multiple messages have this Message-ID (diff)
From: YiFei Zhu <zhuyifei1999@gmail.com> To: containers@lists.linux-foundation.org Cc: YiFei Zhu <yifeifz2@illinois.edu>, bpf@vger.kernel.org, linux-kernel@vger.kernel.org, Aleksa Sarai <cyphar@cyphar.com>, Andrea Arcangeli <aarcange@redhat.com>, Andy Lutomirski <luto@amacapital.net>, Dimitrios Skarlatos <dskarlat@cs.cmu.edu>, Giuseppe Scrivano <gscrivan@redhat.com>, Hubertus Franke <frankeh@us.ibm.com>, Jack Chen <jianyan2@illinois.edu>, Jann Horn <jannh@google.com>, Josep Torrellas <torrella@illinois.edu>, Kees Cook <keescook@chromium.org>, Tianyin Xu <tyxu@illinois.edu>, Tobin Feldman-Fitzthum <tobin@ibm.com>, Tycho Andersen <tycho@tycho.pizza>, Valentin Rothberg <vrothber@redhat.com>, Will Drewry <wad@chromium.org> Subject: [PATCH seccomp 4/6] seccomp/cache: Lookup syscall allowlist for fast path Date: Thu, 24 Sep 2020 07:06:44 -0500 [thread overview] Message-ID: <6c754a336aef916e3a69af8b8b47834317f4dc60.1600946701.git.yifeifz2@illinois.edu> (raw) In-Reply-To: <cover.1600946701.git.yifeifz2@illinois.edu> From: YiFei Zhu <yifeifz2@illinois.edu> The fast (common) path for seccomp should be that the filter permits the syscall to pass through, and failing seccomp is expected to be an exceptional case; it is not expected for userspace to call a denylisted syscall over and over. This first finds the current allow bitmask by iterating through syscall_arches[] array and comparing it to the one in struct seccomp_data; this loop is expected to be unrolled. It then does a test_bit against the bitmask. If the bit is set, then there is no need to run the full filter; it returns SECCOMP_RET_ALLOW immediately. Co-developed-by: Dimitrios Skarlatos <dskarlat@cs.cmu.edu> Signed-off-by: Dimitrios Skarlatos <dskarlat@cs.cmu.edu> Signed-off-by: YiFei Zhu <yifeifz2@illinois.edu> --- kernel/seccomp.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/kernel/seccomp.c b/kernel/seccomp.c index 7c286d66f983..5b1bd8329e9c 100644 --- a/kernel/seccomp.c +++ b/kernel/seccomp.c @@ -167,6 +167,12 @@ static inline void seccomp_cache_inherit(struct seccomp_filter *sfilter, const struct seccomp_filter *prev) { } + +static inline bool seccomp_cache_check(const struct seccomp_filter *sfilter, + const struct seccomp_data *sd) +{ + return false; +} #endif /* CONFIG_SECCOMP_CACHE_NR_ONLY */ /** @@ -321,6 +327,34 @@ static int seccomp_check_filter(struct sock_filter *filter, unsigned int flen) return 0; } +#ifdef CONFIG_SECCOMP_CACHE_NR_ONLY +/** + * seccomp_cache_check - lookup seccomp cache + * @sfilter: The seccomp filter + * @sd: The seccomp data to lookup the cache with + * + * Returns true if the seccomp_data is cached and allowed. + */ +static bool seccomp_cache_check(const struct seccomp_filter *sfilter, + const struct seccomp_data *sd) +{ + int syscall_nr = sd->nr; + int arch; + + if (unlikely(syscall_nr < 0 || syscall_nr >= NR_syscalls)) + return false; + + for (arch = 0; arch < ARRAY_SIZE(syscall_arches); arch++) { + if (likely(syscall_arches[arch] == sd->arch)) + return test_bit(syscall_nr, + sfilter->cache.syscall_ok[arch]); + } + + WARN_ON_ONCE(true); + return false; +} +#endif /* CONFIG_SECCOMP_CACHE_NR_ONLY */ + /** * seccomp_run_filters - evaluates all seccomp filters against @sd * @sd: optional seccomp data to be passed to filters @@ -343,6 +377,9 @@ static u32 seccomp_run_filters(const struct seccomp_data *sd, if (WARN_ON(f == NULL)) return SECCOMP_RET_KILL_PROCESS; + if (seccomp_cache_check(f, sd)) + return SECCOMP_RET_ALLOW; + /* * All filters in the list are evaluated and the lowest BPF return * value always takes priority (ignoring the DATA). -- 2.28.0
next prev parent reply other threads:[~2020-09-24 12:07 UTC|newest] Thread overview: 302+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-09-21 5:35 [RFC PATCH seccomp 0/2] seccomp: Add bitmap cache of arg-independent filter results that allow syscalls YiFei Zhu 2020-09-21 5:35 ` YiFei Zhu 2020-09-21 5:35 ` [RFC PATCH seccomp 1/2] seccomp/cache: Add "emulator" to check if filter is arg-dependent YiFei Zhu 2020-09-21 5:35 ` YiFei Zhu 2020-09-21 17:47 ` Jann Horn via Containers 2020-09-21 17:47 ` Jann Horn 2020-09-21 18:38 ` Jann Horn via Containers 2020-09-21 18:38 ` Jann Horn 2020-09-21 23:44 ` YiFei Zhu 2020-09-21 23:44 ` YiFei Zhu 2020-09-22 0:25 ` Jann Horn via Containers 2020-09-22 0:25 ` Jann Horn 2020-09-22 0:47 ` YiFei Zhu 2020-09-22 0:47 ` YiFei Zhu 2020-09-21 5:35 ` [RFC PATCH seccomp 2/2] seccomp/cache: Cache filter results that allow syscalls YiFei Zhu 2020-09-21 5:35 ` YiFei Zhu 2020-09-21 18:08 ` Jann Horn via Containers 2020-09-21 18:08 ` Jann Horn 2020-09-21 22:50 ` YiFei Zhu 2020-09-21 22:50 ` YiFei Zhu 2020-09-21 22:57 ` Jann Horn via Containers 2020-09-21 22:57 ` Jann Horn 2020-09-21 23:08 ` YiFei Zhu 2020-09-21 23:08 ` YiFei Zhu 2020-09-25 0:01 ` [PATCH v2 seccomp 2/6] asm/syscall.h: Add syscall_arches[] array Kees Cook 2020-09-25 0:01 ` Kees Cook 2020-09-25 0:15 ` Jann Horn via Containers 2020-09-25 0:15 ` Jann Horn 2020-09-25 0:18 ` Al Viro 2020-09-25 0:18 ` Al Viro 2020-09-25 0:24 ` Jann Horn via Containers 2020-09-25 0:24 ` Jann Horn 2020-09-25 1:27 ` YiFei Zhu 2020-09-25 1:27 ` YiFei Zhu 2020-09-25 3:09 ` Kees Cook 2020-09-25 3:09 ` Kees Cook 2020-09-25 3:28 ` YiFei Zhu 2020-09-25 3:28 ` YiFei Zhu 2020-09-25 16:39 ` YiFei Zhu 2020-09-25 16:39 ` YiFei Zhu 2020-09-21 5:48 ` [RFC PATCH seccomp 0/2] seccomp: Add bitmap cache of arg-independent filter results that allow syscalls Sargun Dhillon 2020-09-21 5:48 ` Sargun Dhillon 2020-09-21 7:13 ` YiFei Zhu 2020-09-21 7:13 ` YiFei Zhu 2020-09-21 8:30 ` Christian Brauner 2020-09-21 8:30 ` Christian Brauner 2020-09-21 8:44 ` YiFei Zhu 2020-09-21 8:44 ` YiFei Zhu 2020-09-21 13:51 ` Tycho Andersen 2020-09-21 13:51 ` Tycho Andersen 2020-09-21 15:27 ` YiFei Zhu 2020-09-21 15:27 ` YiFei Zhu 2020-09-21 16:39 ` Tycho Andersen 2020-09-21 16:39 ` Tycho Andersen 2020-09-21 22:57 ` YiFei Zhu 2020-09-21 22:57 ` YiFei Zhu 2020-09-21 19:16 ` Jann Horn via Containers 2020-09-21 19:16 ` Jann Horn 2020-09-21 19:35 ` Hubertus Franke 2020-09-21 19:45 ` Jann Horn via Containers 2020-09-21 19:45 ` Jann Horn 2020-09-23 19:26 ` Kees Cook 2020-09-23 19:26 ` Kees Cook 2020-09-23 22:54 ` YiFei Zhu 2020-09-23 22:54 ` YiFei Zhu 2020-09-24 6:52 ` Kees Cook 2020-09-24 6:52 ` Kees Cook 2020-09-24 12:06 ` [PATCH seccomp 0/6] " YiFei Zhu 2020-09-24 12:06 ` YiFei Zhu 2020-09-24 12:06 ` [PATCH seccomp 1/6] seccomp: Move config option SECCOMP to arch/Kconfig YiFei Zhu 2020-09-24 12:06 ` YiFei Zhu 2020-09-24 12:06 ` YiFei Zhu 2020-09-24 12:06 ` YiFei Zhu 2020-09-24 12:06 ` [PATCH seccomp 2/6] asm/syscall.h: Add syscall_arches[] array YiFei Zhu 2020-09-24 12:06 ` YiFei Zhu 2020-09-24 12:06 ` [PATCH seccomp 3/6] seccomp/cache: Add "emulator" to check if filter is arg-dependent YiFei Zhu 2020-09-24 12:06 ` YiFei Zhu 2020-09-24 12:06 ` YiFei Zhu [this message] 2020-09-24 12:06 ` [PATCH seccomp 4/6] seccomp/cache: Lookup syscall allowlist for fast path YiFei Zhu 2020-09-24 12:06 ` [PATCH seccomp 5/6] selftests/seccomp: Compare bitmap vs filter overhead YiFei Zhu 2020-09-24 12:06 ` YiFei Zhu 2020-09-24 12:06 ` [PATCH seccomp 6/6] seccomp/cache: Report cache data through /proc/pid/seccomp_cache YiFei Zhu 2020-09-24 12:06 ` YiFei Zhu 2020-09-24 12:44 ` [PATCH v2 seccomp 0/6] seccomp: Add bitmap cache of arg-independent filter results that allow syscalls YiFei Zhu 2020-09-24 12:44 ` YiFei Zhu 2020-09-24 12:44 ` [PATCH v2 seccomp 1/6] seccomp: Move config option SECCOMP to arch/Kconfig YiFei Zhu 2020-09-24 12:44 ` YiFei Zhu 2020-09-24 19:11 ` Kees Cook 2020-09-24 19:11 ` Kees Cook 2020-10-27 9:52 ` Geert Uytterhoeven 2020-10-27 9:52 ` Geert Uytterhoeven 2020-10-27 19:08 ` YiFei Zhu 2020-10-27 19:08 ` YiFei Zhu 2020-10-28 0:06 ` Kees Cook 2020-10-28 0:06 ` Kees Cook 2020-10-28 8:18 ` Geert Uytterhoeven 2020-10-28 8:18 ` Geert Uytterhoeven 2020-10-28 9:34 ` Jann Horn via Containers 2020-10-28 9:34 ` Jann Horn 2020-09-24 12:44 ` [PATCH v2 seccomp 2/6] asm/syscall.h: Add syscall_arches[] array YiFei Zhu 2020-09-24 12:44 ` YiFei Zhu 2020-09-24 13:47 ` David Laight 2020-09-24 13:47 ` David Laight 2020-09-24 14:16 ` YiFei Zhu 2020-09-24 14:16 ` YiFei Zhu 2020-09-24 14:20 ` David Laight 2020-09-24 14:20 ` David Laight 2020-09-24 14:37 ` YiFei Zhu 2020-09-24 14:37 ` YiFei Zhu 2020-09-24 16:02 ` YiFei Zhu 2020-09-24 16:02 ` YiFei Zhu 2020-09-24 12:44 ` [PATCH v2 seccomp 3/6] seccomp/cache: Add "emulator" to check if filter is arg-dependent YiFei Zhu 2020-09-24 12:44 ` YiFei Zhu 2020-09-24 23:25 ` Kees Cook 2020-09-24 23:25 ` Kees Cook 2020-09-25 3:04 ` YiFei Zhu 2020-09-25 3:04 ` YiFei Zhu 2020-09-25 16:45 ` YiFei Zhu 2020-09-25 16:45 ` YiFei Zhu 2020-09-25 19:42 ` Kees Cook 2020-09-25 19:42 ` Kees Cook 2020-09-25 19:51 ` Andy Lutomirski 2020-09-25 19:51 ` Andy Lutomirski 2020-09-25 20:37 ` Kees Cook 2020-09-25 20:37 ` Kees Cook 2020-09-25 21:07 ` Andy Lutomirski 2020-09-25 21:07 ` Andy Lutomirski 2020-09-25 23:49 ` Kees Cook 2020-09-25 23:49 ` Kees Cook 2020-09-26 0:34 ` Andy Lutomirski 2020-09-26 0:34 ` Andy Lutomirski 2020-09-26 1:23 ` YiFei Zhu 2020-09-26 1:23 ` YiFei Zhu 2020-09-26 2:47 ` Andy Lutomirski 2020-09-26 2:47 ` Andy Lutomirski 2020-09-26 4:35 ` Kees Cook 2020-09-26 4:35 ` Kees Cook 2020-09-24 12:44 ` [PATCH v2 seccomp 4/6] seccomp/cache: Lookup syscall allowlist for fast path YiFei Zhu 2020-09-24 12:44 ` YiFei Zhu 2020-09-24 23:46 ` Kees Cook 2020-09-24 23:46 ` Kees Cook 2020-09-25 1:55 ` YiFei Zhu 2020-09-25 1:55 ` YiFei Zhu 2020-09-24 12:44 ` [PATCH v2 seccomp 5/6] selftests/seccomp: Compare bitmap vs filter overhead YiFei Zhu 2020-09-24 12:44 ` YiFei Zhu 2020-09-24 23:47 ` Kees Cook 2020-09-24 23:47 ` Kees Cook 2020-09-25 1:35 ` YiFei Zhu 2020-09-25 1:35 ` YiFei Zhu 2020-09-24 12:44 ` [PATCH v2 seccomp 6/6] seccomp/cache: Report cache data through /proc/pid/seccomp_cache YiFei Zhu 2020-09-24 12:44 ` YiFei Zhu 2020-09-24 23:56 ` Kees Cook 2020-09-24 23:56 ` Kees Cook 2020-09-25 3:11 ` YiFei Zhu 2020-09-25 3:11 ` YiFei Zhu 2020-09-25 3:26 ` Kees Cook 2020-09-25 3:26 ` Kees Cook 2020-09-30 15:19 ` [PATCH v3 seccomp 0/5] seccomp: Add bitmap cache of constant allow filter results YiFei Zhu 2020-09-30 15:19 ` YiFei Zhu 2020-09-30 15:19 ` [PATCH v3 seccomp 1/5] x86: Enable seccomp architecture tracking YiFei Zhu 2020-09-30 15:19 ` YiFei Zhu 2020-09-30 21:21 ` Kees Cook 2020-09-30 21:21 ` Kees Cook 2020-09-30 21:33 ` Jann Horn via Containers 2020-09-30 21:33 ` Jann Horn 2020-09-30 22:53 ` Kees Cook 2020-09-30 22:53 ` Kees Cook 2020-09-30 23:15 ` Jann Horn via Containers 2020-09-30 23:15 ` Jann Horn 2020-09-30 15:19 ` [PATCH v3 seccomp 2/5] seccomp/cache: Add "emulator" to check if filter is constant allow YiFei Zhu 2020-09-30 15:19 ` YiFei Zhu 2020-09-30 22:24 ` Jann Horn via Containers 2020-09-30 22:24 ` Jann Horn 2020-09-30 22:49 ` Kees Cook 2020-09-30 22:49 ` Kees Cook 2020-10-01 11:28 ` YiFei Zhu 2020-10-01 11:28 ` YiFei Zhu 2020-10-01 21:08 ` Jann Horn via Containers 2020-10-01 21:08 ` Jann Horn 2020-09-30 22:40 ` Kees Cook 2020-09-30 22:40 ` Kees Cook 2020-10-01 11:52 ` YiFei Zhu 2020-10-01 11:52 ` YiFei Zhu 2020-10-01 21:05 ` Kees Cook 2020-10-01 21:05 ` Kees Cook 2020-10-02 11:08 ` YiFei Zhu 2020-10-02 11:08 ` YiFei Zhu 2020-10-09 4:47 ` YiFei Zhu 2020-10-09 4:47 ` YiFei Zhu 2020-10-09 5:41 ` Kees Cook 2020-10-09 5:41 ` Kees Cook 2020-09-30 15:19 ` [PATCH v3 seccomp 3/5] seccomp/cache: Lookup syscall allowlist for fast path YiFei Zhu 2020-09-30 15:19 ` YiFei Zhu 2020-09-30 21:32 ` Kees Cook 2020-09-30 21:32 ` Kees Cook 2020-10-09 0:17 ` YiFei Zhu 2020-10-09 0:17 ` YiFei Zhu 2020-10-09 5:35 ` Kees Cook 2020-10-09 5:35 ` Kees Cook 2020-09-30 15:19 ` [PATCH v3 seccomp 4/5] selftests/seccomp: Compare bitmap vs filter overhead YiFei Zhu 2020-09-30 15:19 ` YiFei Zhu 2020-09-30 15:19 ` [PATCH v3 seccomp 5/5] seccomp/cache: Report cache data through /proc/pid/seccomp_cache YiFei Zhu 2020-09-30 15:19 ` YiFei Zhu 2020-09-30 22:00 ` Jann Horn via Containers 2020-09-30 22:00 ` Jann Horn 2020-09-30 23:12 ` Kees Cook 2020-09-30 23:12 ` Kees Cook 2020-10-01 12:06 ` YiFei Zhu 2020-10-01 12:06 ` YiFei Zhu 2020-10-01 16:05 ` Jann Horn via Containers 2020-10-01 16:05 ` Jann Horn 2020-10-01 16:18 ` YiFei Zhu 2020-10-01 16:18 ` YiFei Zhu 2020-09-30 22:59 ` Kees Cook 2020-09-30 22:59 ` Kees Cook 2020-09-30 23:08 ` Jann Horn via Containers 2020-09-30 23:08 ` Jann Horn 2020-09-30 23:21 ` Kees Cook 2020-09-30 23:21 ` Kees Cook 2020-10-09 17:14 ` [PATCH v4 seccomp 0/5] seccomp: Add bitmap cache of constant allow filter results YiFei Zhu 2020-10-09 17:14 ` YiFei Zhu 2020-10-09 17:14 ` [PATCH v4 seccomp 1/5] seccomp/cache: Lookup syscall allowlist bitmap for fast path YiFei Zhu 2020-10-09 17:14 ` YiFei Zhu 2020-10-09 21:30 ` Jann Horn via Containers 2020-10-09 21:30 ` Jann Horn 2020-10-09 23:18 ` Kees Cook 2020-10-09 23:18 ` Kees Cook 2020-10-09 17:14 ` [PATCH v4 seccomp 2/5] seccomp/cache: Add "emulator" to check if filter is constant allow YiFei Zhu 2020-10-09 17:14 ` YiFei Zhu 2020-10-09 21:30 ` Jann Horn via Containers 2020-10-09 21:30 ` Jann Horn 2020-10-09 22:47 ` Kees Cook 2020-10-09 22:47 ` Kees Cook 2020-10-09 17:14 ` [PATCH v4 seccomp 3/5] x86: Enable seccomp architecture tracking YiFei Zhu 2020-10-09 17:14 ` YiFei Zhu 2020-10-09 17:25 ` Andy Lutomirski 2020-10-09 17:25 ` Andy Lutomirski 2020-10-09 18:32 ` YiFei Zhu 2020-10-09 18:32 ` YiFei Zhu 2020-10-09 20:59 ` Andy Lutomirski 2020-10-09 20:59 ` Andy Lutomirski 2020-10-09 17:14 ` [PATCH v4 seccomp 4/5] selftests/seccomp: Compare bitmap vs filter overhead YiFei Zhu 2020-10-09 17:14 ` YiFei Zhu 2020-10-09 17:14 ` [PATCH v4 seccomp 5/5] seccomp/cache: Report cache data through /proc/pid/seccomp_cache YiFei Zhu 2020-10-09 17:14 ` YiFei Zhu 2020-10-09 21:24 ` kernel test robot 2020-10-09 21:24 ` kernel test robot 2020-10-09 21:24 ` kernel test robot 2020-10-09 21:45 ` Jann Horn via Containers 2020-10-09 21:45 ` Jann Horn 2020-10-09 23:14 ` Kees Cook 2020-10-09 23:14 ` Kees Cook 2020-10-10 13:26 ` YiFei Zhu 2020-10-10 13:26 ` YiFei Zhu 2020-10-12 22:57 ` Kees Cook 2020-10-12 22:57 ` Kees Cook 2020-10-13 0:31 ` YiFei Zhu 2020-10-13 0:31 ` YiFei Zhu 2020-10-22 20:52 ` YiFei Zhu 2020-10-22 20:52 ` YiFei Zhu 2020-10-22 22:32 ` Kees Cook 2020-10-22 22:32 ` Kees Cook 2020-10-22 23:40 ` YiFei Zhu 2020-10-22 23:40 ` YiFei Zhu 2020-10-24 2:51 ` Kees Cook 2020-10-24 2:51 ` Kees Cook 2020-10-30 12:18 ` YiFei Zhu 2020-10-30 12:18 ` YiFei Zhu 2020-11-03 13:00 ` YiFei Zhu 2020-11-03 13:00 ` YiFei Zhu 2020-11-04 0:29 ` Kees Cook 2020-11-04 0:29 ` Kees Cook 2020-11-04 11:40 ` YiFei Zhu 2020-11-04 11:40 ` YiFei Zhu 2020-11-04 18:57 ` Kees Cook 2020-11-04 18:57 ` Kees Cook 2020-10-11 15:47 ` [PATCH v5 seccomp 0/5]seccomp: Add bitmap cache of constant allow filter results YiFei Zhu 2020-10-11 15:47 ` YiFei Zhu 2020-10-11 15:47 ` [PATCH v5 seccomp 1/5] seccomp/cache: Lookup syscall allowlist bitmap for fast path YiFei Zhu 2020-10-11 15:47 ` YiFei Zhu 2020-10-12 6:42 ` Jann Horn via Containers 2020-10-12 6:42 ` Jann Horn 2020-10-11 15:47 ` [PATCH v5 seccomp 2/5] seccomp/cache: Add "emulator" to check if filter is constant allow YiFei Zhu 2020-10-11 15:47 ` YiFei Zhu 2020-10-12 6:46 ` Jann Horn via Containers 2020-10-12 6:46 ` Jann Horn 2020-10-11 15:47 ` [PATCH v5 seccomp 3/5] x86: Enable seccomp architecture tracking YiFei Zhu 2020-10-11 15:47 ` YiFei Zhu 2020-10-11 15:47 ` [PATCH v5 seccomp 4/5] selftests/seccomp: Compare bitmap vs filter overhead YiFei Zhu 2020-10-11 15:47 ` YiFei Zhu 2020-10-11 15:47 ` [PATCH v5 seccomp 5/5] seccomp/cache: Report cache data through /proc/pid/seccomp_cache YiFei Zhu 2020-10-11 15:47 ` YiFei Zhu 2020-10-12 6:49 ` Jann Horn via Containers 2020-10-12 6:49 ` Jann Horn 2020-12-17 12:14 ` Geert Uytterhoeven 2020-12-17 12:14 ` Geert Uytterhoeven 2020-12-17 18:34 ` YiFei Zhu 2020-12-17 18:34 ` YiFei Zhu 2020-12-18 12:35 ` Geert Uytterhoeven 2020-12-18 12:35 ` Geert Uytterhoeven 2020-10-27 19:14 ` [PATCH v5 seccomp 0/5]seccomp: Add bitmap cache of constant allow filter results Kees Cook 2020-10-27 19:14 ` Kees Cook
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