From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Lorenz Bauer <lorenz.bauer@isovalent.com>,
Lorenz Bauer <lmb@isovalent.com>,
Martin KaFai Lau <martin.lau@kernel.org>,
Sasha Levin <sashal@kernel.org>,
ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
shuah@kernel.org, yhs@fb.com, eddyz87@gmail.com, sdf@google.com,
iii@linux.ibm.com, laoar.shao@gmail.com, memxor@gmail.com,
bpf@vger.kernel.org, linux-kselftest@vger.kernel.org
Subject: [PATCH AUTOSEL 5.10 06/15] selftests/bpf: check that modifier resolves after pointer
Date: Sun, 19 Mar 2023 20:55:50 -0400 [thread overview]
Message-ID: <20230320005559.1429040-6-sashal@kernel.org> (raw)
In-Reply-To: <20230320005559.1429040-1-sashal@kernel.org>
From: Lorenz Bauer <lorenz.bauer@isovalent.com>
[ Upstream commit dfdd608c3b365f0fd49d7e13911ebcde06b9865b ]
Add a regression test that ensures that a VAR pointing at a
modifier which follows a PTR (or STRUCT or ARRAY) is resolved
correctly by the datasec validator.
Signed-off-by: Lorenz Bauer <lmb@isovalent.com>
Link: https://lore.kernel.org/r/20230306112138.155352-3-lmb@isovalent.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/bpf/prog_tests/btf.c | 28 ++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/tools/testing/selftests/bpf/prog_tests/btf.c b/tools/testing/selftests/bpf/prog_tests/btf.c
index 48b01150e703f..28d22265b8253 100644
--- a/tools/testing/selftests/bpf/prog_tests/btf.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf.c
@@ -882,6 +882,34 @@ static struct btf_raw_test raw_tests[] = {
.btf_load_err = true,
.err_str = "Invalid elem",
},
+{
+ .descr = "var after datasec, ptr followed by modifier",
+ .raw_types = {
+ /* .bss section */ /* [1] */
+ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2),
+ sizeof(void*)+4),
+ BTF_VAR_SECINFO_ENC(4, 0, sizeof(void*)),
+ BTF_VAR_SECINFO_ENC(6, sizeof(void*), 4),
+ /* int */ /* [2] */
+ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+ /* int* */ /* [3] */
+ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 2),
+ BTF_VAR_ENC(NAME_TBD, 3, 0), /* [4] */
+ /* const int */ /* [5] */
+ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 2),
+ BTF_VAR_ENC(NAME_TBD, 5, 0), /* [6] */
+ BTF_END_RAW,
+ },
+ .str_sec = "\0a\0b\0c\0",
+ .str_sec_size = sizeof("\0a\0b\0c\0"),
+ .map_type = BPF_MAP_TYPE_ARRAY,
+ .map_name = ".bss",
+ .key_size = sizeof(int),
+ .value_size = sizeof(void*)+4,
+ .key_type_id = 0,
+ .value_type_id = 1,
+ .max_entries = 1,
+},
/* Test member exceeds the size of struct.
*
* struct A {
--
2.39.2
next prev parent reply other threads:[~2023-03-20 1:01 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-20 0:55 [PATCH AUTOSEL 5.10 01/15] HID: uhid: Over-ride the default maximum data buffer value with our own Sasha Levin
2023-03-20 0:55 ` [PATCH AUTOSEL 5.10 02/15] HID: cp2112: Fix driver not registering GPIO IRQ chip as threaded Sasha Levin
2023-03-20 0:55 ` [PATCH AUTOSEL 5.10 03/15] ca8210: fix mac_len negative array access Sasha Levin
2023-03-20 0:55 ` [PATCH AUTOSEL 5.10 04/15] HID: intel-ish-hid: ipc: Fix potential use-after-free in work function Sasha Levin
2023-03-20 0:55 ` [PATCH AUTOSEL 5.10 05/15] m68k: Only force 030 bus error if PC not in exception table Sasha Levin
2023-03-20 0:55 ` Sasha Levin [this message]
2023-03-20 0:55 ` [PATCH AUTOSEL 5.10 07/15] scsi: target: iscsi: Fix an error message in iscsi_check_key() Sasha Levin
2023-03-20 0:55 ` [PATCH AUTOSEL 5.10 08/15] scsi: hisi_sas: Check devm_add_action() return value Sasha Levin
2023-03-20 0:55 ` [PATCH AUTOSEL 5.10 09/15] scsi: ufs: core: Add soft dependency on governor_simpleondemand Sasha Levin
2023-03-20 0:55 ` [PATCH AUTOSEL 5.10 10/15] scsi: lpfc: Avoid usage of list iterator variable after loop Sasha Levin
2023-03-20 0:55 ` [PATCH AUTOSEL 5.10 11/15] scsi: storvsc: Handle BlockSize change in Hyper-V VHD/VHDX file Sasha Levin
2023-03-20 0:55 ` [PATCH AUTOSEL 5.10 12/15] platform/x86: ISST: Increase range of valid mail box commands Sasha Levin
2023-03-20 13:50 ` Pavel Machek
2023-03-27 11:25 ` Sasha Levin
2023-03-20 0:55 ` [PATCH AUTOSEL 5.10 13/15] net: usb: cdc_mbim: avoid altsetting toggling for Telit FE990 Sasha Levin
2023-03-20 0:55 ` [PATCH AUTOSEL 5.10 14/15] net: usb: qmi_wwan: add Telit 0x1080 composition Sasha Levin
2023-03-20 0:55 ` [PATCH AUTOSEL 5.10 15/15] sh: sanitize the flags on sigreturn Sasha Levin
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