* [PATCH blktests 1/4] nvme/rc: add zoned null_blk target helpers
2026-10-14 17:00 [PATCH blktests 0/4] nvme: add nvmet zone report and FC regression tests Andrea Parri
@ 2026-10-14 17:00 ` Andrea Parri
2026-10-14 17:00 ` [PATCH blktests 2/4] nvme/071: test that nvmet sends no data for a failed read Andrea Parri
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Andrea Parri @ 2026-10-14 17:00 UTC (permalink / raw)
To: Shin'ichiro Kawasaki, linux-block
Cc: Andrea Parri, Christoph Hellwig, Keith Busch, Sagi Grimberg,
Chaitanya Kulkarni, Daniel Wagner, linux-nvme
Add helpers that export a zoned null_blk device as a namespace of the
default subsystem and connect to it, tear that setup down again, and
issue a partial Zone Management Receive and check its completion status.
The zone report tests added next share them.
Assisted-by: LLM
Signed-off-by: Andrea Parri <parri.andrea@gmail.com>
---
tests/nvme/rc | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 61 insertions(+)
diff --git a/tests/nvme/rc b/tests/nvme/rc
index c415ca1234407..270fad19d61f1 100644
--- a/tests/nvme/rc
+++ b/tests/nvme/rc
@@ -408,6 +408,67 @@ _nvmet_passthru_target_cleanup() {
_remove_nvmet_host "${def_hostnqn}"
}
+# Export a zoned null_blk device as a namespace of the default subsystem and
+# connect to it. Callers must source common/null_blk.
+_nvmet_zoned_target_setup() {
+ if ! _init_null_blk nr_devices=0; then
+ return 1
+ fi
+ if ! _configure_null_blk nullb0 blocksize=512 size=1024 zoned=1 \
+ zone_size=1 power=1 >>"$FULL" 2>&1; then
+ echo "could not configure zoned null_blk device"
+ return 1
+ fi
+
+ _nvmet_target_setup --blkdev none
+ _create_nvmet_ns --blkdev /dev/nullb0 --uuid "$def_subsys_uuid" \
+ >/dev/null
+ _nvme_connect_subsys
+}
+
+_nvmet_zoned_target_cleanup() {
+ _nvme_disconnect_subsys
+ _nvmet_target_cleanup
+ _exit_null_blk
+}
+
+# Test cleanup handler to register with _nvmet_zoned_target_setup().
+_cleanup_nvmet_zoned_target() {
+ _cleanup_nvmet
+ _exit_null_blk
+}
+
+# Issue a partial zone report from zone 0 of namespace device $1 with a
+# $2-byte data buffer and NUMD $3, and check that it completes with status
+# code $4, or succeeds if $4 is 0.
+_check_zone_report() {
+ local dev=$1 data_len=$2 numd=$3 expected=$4 desc err rc status
+
+ desc="zone report with $data_len bytes and NUMD $numd"
+ err=$(nvme io-passthru "$dev" --namespace-id=1 --opcode=0x7a --read \
+ --data-len="$data_len" --cdw10=0 --cdw11=0 --cdw12="$numd" \
+ --cdw13=0x10000 2>&1 >/dev/null)
+ rc=$?
+ status=$(sed -n \
+ 's/^NVMe status:.*(\(0x[[:xdigit:]][[:xdigit:]]*\)).*/\1/p' \
+ <<<"$err")
+ printf '%s: exit=%d status=%s\n' "$desc" "$rc" "${status:-none}" \
+ >>"$FULL"
+
+ if ((expected == 0)); then
+ if ((rc != 0)); then
+ echo "$desc failed"
+ fi
+ elif ((rc == 0)); then
+ echo "$desc was not rejected"
+ elif [[ -z "$status" ]]; then
+ echo "$desc returned no NVMe status"
+ elif (((status & 0x7ff) != expected)); then
+ printf '%s returned status %s, expected %#x\n' "$desc" \
+ "$status" "$expected"
+ fi
+}
+
_discovery_genctr() {
local port=${1}
--
2.53.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH blktests 2/4] nvme/071: test that nvmet sends no data for a failed read
2026-10-14 17:00 [PATCH blktests 0/4] nvme: add nvmet zone report and FC regression tests Andrea Parri
2026-10-14 17:00 ` [PATCH blktests 1/4] nvme/rc: add zoned null_blk target helpers Andrea Parri
@ 2026-10-14 17:00 ` Andrea Parri
2026-10-14 17:00 ` [PATCH blktests 3/4] nvme/072: test nvmet zone report initialization and length Andrea Parri
2026-10-14 17:00 ` [PATCH blktests 4/4] nvme/073: test that nvmet rejects a zone report NUMD that wraps Andrea Parri
3 siblings, 0 replies; 5+ messages in thread
From: Andrea Parri @ 2026-10-14 17:00 UTC (permalink / raw)
To: Shin'ichiro Kawasaki, linux-block
Cc: Andrea Parri, Christoph Hellwig, Keith Busch, Sagi Grimberg,
Chaitanya Kulkarni, Daniel Wagner, linux-nvme
Issue a failing Identify into a buffer filled with a sentinel and verify
that the target transfers no data, with a successful Identify and a
namespace read as controls. The test runs on every configured transport;
only nvmet-fc failed it before the fix. Add a small helper because
nvme-cli cannot prefill the data buffer.
The test fails over fc on the unpatched kernel and passes with the fix
applied.
Assisted-by: LLM
Signed-off-by: Andrea Parri <parri.andrea@gmail.com>
---
src/.gitignore | 1 +
src/Makefile | 1 +
src/nvme-sentinel-read.c | 89 ++++++++++++++++++++++++++++++++++++++++
tests/nvme/071 | 80 ++++++++++++++++++++++++++++++++++++
tests/nvme/071.out | 2 +
5 files changed, 173 insertions(+)
create mode 100644 src/nvme-sentinel-read.c
create mode 100755 tests/nvme/071
create mode 100644 tests/nvme/071.out
diff --git a/src/.gitignore b/src/.gitignore
index e9869e172b20f..2429da9d9cf44 100644
--- a/src/.gitignore
+++ b/src/.gitignore
@@ -18,3 +18,4 @@
/ioctl-lbmd-query
/nvme-passthru-admin-uring
/nvme-delay-ioctl
+/nvme-sentinel-read
diff --git a/src/Makefile b/src/Makefile
index dd646940fa25e..78433f0762b4a 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -24,6 +24,7 @@ C_TARGETS := \
mount_clear_sock \
nvme-delay-ioctl \
nvme-passthrough-meta \
+ nvme-sentinel-read \
ioctl-lbmd-query \
nbdsetsize \
openclose \
diff --git a/src/nvme-sentinel-read.c b/src/nvme-sentinel-read.c
new file mode 100644
index 0000000000000..dd36f283f46e2
--- /dev/null
+++ b/src/nvme-sentinel-read.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-3.0+
+// Copyright (C) 2026 Andrea Parri
+
+/*
+ * Issue an NVMe admin read command into a buffer filled with a sentinel and
+ * print the NVMe status and the number of bytes the command overwrote.
+ */
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/nvme_ioctl.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+#define SENTINEL 0xa5
+
+static int parse_u32(const char *s, uint32_t *val)
+{
+ unsigned long v;
+ char *end;
+
+ errno = 0;
+ v = strtoul(s, &end, 0);
+ if (errno || end == s || *end || v > UINT32_MAX)
+ return -1;
+ *val = v;
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ struct nvme_passthru_cmd cmd = { };
+ uint32_t opcode, cdw10, len, i, changed = 0;
+ unsigned char *buf;
+ void *p;
+ int fd, ret;
+
+ if (argc != 5 || parse_u32(argv[2], &opcode) || opcode > 0xff ||
+ parse_u32(argv[3], &cdw10) || parse_u32(argv[4], &len) || !len) {
+ fprintf(stderr, "usage: %s /dev/nvmeX opcode cdw10 data-len\n",
+ argv[0]);
+ return 2;
+ }
+
+ /*
+ * Page-align the buffer so that the kernel maps it for the transfer
+ * instead of bouncing it: a bounce buffer is zero-filled and copied
+ * back even when the command fails, which would hide the sentinel.
+ */
+ ret = posix_memalign(&p, 4096, len);
+ if (ret) {
+ fprintf(stderr, "posix_memalign: %s\n", strerror(ret));
+ return 2;
+ }
+ buf = p;
+ memset(buf, SENTINEL, len);
+
+ fd = open(argv[1], O_RDONLY);
+ if (fd < 0) {
+ perror(argv[1]);
+ free(buf);
+ return 2;
+ }
+
+ cmd.opcode = opcode;
+ cmd.addr = (uintptr_t)buf;
+ cmd.data_len = len;
+ cmd.cdw10 = cdw10;
+
+ ret = ioctl(fd, NVME_IOCTL_ADMIN_CMD, &cmd);
+ close(fd);
+ if (ret < 0) {
+ perror("NVME_IOCTL_ADMIN_CMD");
+ free(buf);
+ return 2;
+ }
+
+ for (i = 0; i < len; i++)
+ if (buf[i] != SENTINEL)
+ changed++;
+
+ printf("%#x %u\n", ret, changed);
+ free(buf);
+ return 0;
+}
diff --git a/tests/nvme/071 b/tests/nvme/071
new file mode 100755
index 0000000000000..5333bfac8db53
--- /dev/null
+++ b/tests/nvme/071
@@ -0,0 +1,80 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2026 Andrea Parri
+#
+# Check that the NVMe target transfers no read data for a failed command.
+# The host buffer is filled with a sentinel, so any data the target sends
+# shows up as changed bytes.
+#
+# Regression test for patch "nvmet-fc: only send read data for successful
+# commands".
+
+. tests/nvme/rc
+
+DESCRIPTION="verify nvmet does not transfer data for failed reads"
+QUICK=1
+
+requires() {
+ _nvme_requires
+ _have_loop
+ _require_kernel_nvme_target
+ _have_src_program nvme-sentinel-read
+}
+
+set_conditions() {
+ _set_nvme_trtype "$@"
+}
+
+# Issue an Identify with CNS $2 to controller $1 and print the NVMe status
+# and the number of changed bytes in the 4096-byte data buffer.
+_identify() {
+ src/nvme-sentinel-read "$1" 0x06 "$2" 4096 2>>"$FULL"
+}
+
+test() {
+ echo "Running ${TEST_NAME}"
+
+ local changed ctrl ns status
+
+ _setup_nvmet
+ # File backing: the namespace read below fails over loop with the
+ # default loop device backing, for reasons unrelated to this test.
+ _nvmet_target_setup --blkdev file
+ _nvme_connect_subsys
+
+ ctrl=$(_find_nvme_dev "$def_subsysnqn")
+ ns="/dev/${ctrl}n1"
+
+ # Identify Controller succeeds and must overwrite the sentinel.
+ if ! read -r status changed < <(_identify "/dev/$ctrl" 0x01); then
+ echo "successful Identify could not be issued"
+ else
+ echo "cns=0x01 status=$status changed=$changed" >>"$FULL"
+ if ((status != 0 || changed == 0)); then
+ echo "successful Identify returned status $status with $changed bytes"
+ fi
+ fi
+
+ # An unsupported CNS fails and must leave the sentinel intact.
+ if ! read -r status changed < <(_identify "/dev/$ctrl" 0xff); then
+ echo "failed Identify could not be issued"
+ else
+ echo "cns=0xff status=$status changed=$changed" >>"$FULL"
+ if (((status & 0x7ff) != 2)); then
+ echo "failed Identify returned status $status, expected 0x2"
+ fi
+ if ((changed != 0)); then
+ echo "failed Identify transferred data: $changed bytes changed"
+ fi
+ fi
+
+ if ! dd if="$ns" of=/dev/null bs=4096 count=256 iflag=direct \
+ status=none >>"$FULL" 2>&1; then
+ echo "namespace read failed"
+ fi
+
+ _nvme_disconnect_subsys
+ _nvmet_target_cleanup
+
+ echo "Test complete"
+}
diff --git a/tests/nvme/071.out b/tests/nvme/071.out
new file mode 100644
index 0000000000000..146809b91e0a3
--- /dev/null
+++ b/tests/nvme/071.out
@@ -0,0 +1,2 @@
+Running nvme/071
+Test complete
--
2.53.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH blktests 3/4] nvme/072: test nvmet zone report initialization and length
2026-10-14 17:00 [PATCH blktests 0/4] nvme: add nvmet zone report and FC regression tests Andrea Parri
2026-10-14 17:00 ` [PATCH blktests 1/4] nvme/rc: add zoned null_blk target helpers Andrea Parri
2026-10-14 17:00 ` [PATCH blktests 2/4] nvme/071: test that nvmet sends no data for a failed read Andrea Parri
@ 2026-10-14 17:00 ` Andrea Parri
2026-10-14 17:00 ` [PATCH blktests 4/4] nvme/073: test that nvmet rejects a zone report NUMD that wraps Andrea Parri
3 siblings, 0 replies; 5+ messages in thread
From: Andrea Parri @ 2026-10-14 17:00 UTC (permalink / raw)
To: Shin'ichiro Kawasaki, linux-block
Cc: Andrea Parri, Christoph Hellwig, Keith Busch, Sagi Grimberg,
Chaitanya Kulkarni, Daniel Wagner, linux-nvme
Export a zoned null_blk device through the NVMe target and verify that
Zone Management Receive zeroes reserved and unused report bytes and
rejects a transfer length inconsistent with NUMD. The test runs on every
configured transport, with RDMA restricted to 4 KiB page kernels so that
the preparatory write exceeds the default inline-data limit. Add a small
passthrough helper because nvme-cli does not expose the reserved report
bytes.
The test fails on the unpatched kernel and passes with the fix applied.
Assisted-by: LLM
Signed-off-by: Andrea Parri <parri.andrea@gmail.com>
---
src/.gitignore | 1 +
src/Makefile | 1 +
src/nvme-zone-report.c | 165 +++++++++++++++++++++++++++++++++++++++++
tests/nvme/072 | 68 +++++++++++++++++
tests/nvme/072.out | 2 +
5 files changed, 237 insertions(+)
create mode 100644 src/nvme-zone-report.c
create mode 100755 tests/nvme/072
create mode 100644 tests/nvme/072.out
diff --git a/src/.gitignore b/src/.gitignore
index 2429da9d9cf44..8119476416937 100644
--- a/src/.gitignore
+++ b/src/.gitignore
@@ -19,3 +19,4 @@
/nvme-passthru-admin-uring
/nvme-delay-ioctl
/nvme-sentinel-read
+/nvme-zone-report
diff --git a/src/Makefile b/src/Makefile
index 78433f0762b4a..7c4fd600ace1d 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -25,6 +25,7 @@ C_TARGETS := \
nvme-delay-ioctl \
nvme-passthrough-meta \
nvme-sentinel-read \
+ nvme-zone-report \
ioctl-lbmd-query \
nbdsetsize \
openclose \
diff --git a/src/nvme-zone-report.c b/src/nvme-zone-report.c
new file mode 100644
index 0000000000000..951b1d03d4a75
--- /dev/null
+++ b/src/nvme-zone-report.c
@@ -0,0 +1,165 @@
+// SPDX-License-Identifier: GPL-3.0+
+// Copyright (C) 2026 Andrea Parri
+
+/* Check that unused bytes in an NVMe zone report are zeroed. */
+#define _GNU_SOURCE
+#include <endian.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/nvme_ioctl.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+#define REPORT_LEN 4096
+/*
+ * Larger than the default RDMA in-capsule data size on 4 KiB page kernels.
+ * nvme/072 skips RDMA on other page sizes, where this write could stay
+ * inline rather than use buffers allocated and freed per command.
+ */
+#define POISON_LEN 8192
+#define WRITE_OPCODE 0x01
+#define ZONE_REPORT_OPCODE 0x7a
+#define PARTIAL_REPORT (1U << 16)
+#define ZONE_REPORT_HEADER 64
+#define ZONE_DESC_LEN 64
+#define ZONE_START_OFFSET 16
+#define NR_ATTEMPTS 64
+
+static int poison_target(int fd, unsigned int iteration)
+{
+ unsigned char data[POISON_LEN];
+ struct nvme_passthru_cmd cmd = {
+ .opcode = WRITE_OPCODE,
+ .nsid = 1,
+ .addr = (uintptr_t)data,
+ .data_len = sizeof(data),
+ .cdw10 = iteration * (POISON_LEN / 512),
+ .cdw12 = POISON_LEN / 512 - 1,
+ };
+
+ memset(data, 0x5a, sizeof(data));
+ return ioctl(fd, NVME_IOCTL_IO_CMD, &cmd);
+}
+
+static uint64_t read_le64(const unsigned char *p)
+{
+ uint64_t value;
+
+ memcpy(&value, p, sizeof(value));
+ return le64toh(value);
+}
+
+int main(int argc, char **argv)
+{
+ unsigned char *report;
+ unsigned long long slba;
+ char *end;
+ void *p;
+ int fd, i, j, ret, rc = 0;
+
+ if (argc != 3) {
+ fprintf(stderr, "usage: %s /dev/nvmeXnY last-zone-slba\n",
+ argv[0]);
+ return 2;
+ }
+
+ errno = 0;
+ slba = strtoull(argv[2], &end, 0);
+ if (errno || *end) {
+ fprintf(stderr, "invalid SLBA: %s\n", argv[2]);
+ return 2;
+ }
+
+ /*
+ * Page-align the report so that the kernel maps it for the transfer
+ * instead of bouncing it: a bounce buffer is zero-filled, which would
+ * hide the sentinel and any bytes the target left unwritten.
+ */
+ ret = posix_memalign(&p, 4096, REPORT_LEN);
+ if (ret) {
+ fprintf(stderr, "posix_memalign: %s\n", strerror(ret));
+ return 2;
+ }
+ report = p;
+
+ fd = open(argv[1], O_RDWR);
+ if (fd < 0) {
+ perror(argv[1]);
+ free(report);
+ return 2;
+ }
+
+ for (i = 0; i < NR_ATTEMPTS; i++) {
+ struct nvme_passthru_cmd cmd = {
+ .opcode = ZONE_REPORT_OPCODE,
+ .nsid = 1,
+ .addr = (uintptr_t)report,
+ .data_len = REPORT_LEN,
+ .cdw10 = (uint32_t)slba,
+ .cdw11 = (uint32_t)(slba >> 32),
+ .cdw12 = REPORT_LEN / 4 - 1,
+ .cdw13 = PARTIAL_REPORT,
+ };
+ unsigned int nonzero = 0, stale = 0, poisoned = 0;
+ unsigned char sentinel = i & 1 ? 0xa5 : 0x3c;
+
+ ret = poison_target(fd, i);
+ if (ret) {
+ if (ret < 0)
+ perror("poison_target");
+ else
+ fprintf(stderr, "poison write status: %#x\n", ret);
+ rc = 2;
+ goto out;
+ }
+
+ memset(report, sentinel, REPORT_LEN);
+ ret = ioctl(fd, NVME_IOCTL_IO_CMD, &cmd);
+ if (ret) {
+ if (ret < 0)
+ perror("NVME_IOCTL_IO_CMD");
+ else
+ fprintf(stderr, "NVMe status: %#x\n", ret);
+ rc = 2;
+ goto out;
+ }
+
+ if (read_le64(report) != 1 ||
+ read_le64(report + ZONE_REPORT_HEADER +
+ ZONE_START_OFFSET) != slba) {
+ fprintf(stderr, "unexpected zone report header or SLBA\n");
+ rc = 1;
+ goto out;
+ }
+
+ for (j = 8; j < REPORT_LEN; j++) {
+ if (j >= ZONE_REPORT_HEADER &&
+ j < ZONE_REPORT_HEADER + ZONE_DESC_LEN)
+ continue;
+ if (!report[j])
+ continue;
+ nonzero++;
+ if (report[j] == sentinel)
+ stale++;
+ if (report[j] == 0x5a)
+ poisoned++;
+ }
+
+ fprintf(stderr, "attempt %d: %u nonzero bytes "
+ "(%u poison, %u sentinel)\n", i + 1, nonzero,
+ poisoned, stale);
+ if (nonzero) {
+ rc = 1;
+ goto out;
+ }
+ }
+
+out:
+ close(fd);
+ free(report);
+ return rc;
+}
diff --git a/tests/nvme/072 b/tests/nvme/072
new file mode 100755
index 0000000000000..c7bcf93ab4d20
--- /dev/null
+++ b/tests/nvme/072
@@ -0,0 +1,68 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2026 Andrea Parri
+#
+# Check that NVMe target zone reports are fully initialized and that their
+# transfer length matches NUMD.
+#
+# Regression test for patch "nvmet: zns: don't leak stale memory in zone
+# management receive".
+
+. tests/nvme/rc
+. common/null_blk
+
+DESCRIPTION="check NVMe target zone report initialization and length"
+QUICK=1
+
+requires() {
+ _nvme_requires
+ _have_loop
+ _require_kernel_nvme_target
+ _have_module null_blk
+ _have_kernel_options BLK_DEV_ZONED
+ _have_src_program nvme-zone-report
+
+ # RDMA defaults to PAGE_SIZE bytes of inline data. The helper's
+ # 8 KiB preparatory write must exceed that limit.
+ if [[ "$nvme_trtype" == "rdma" ]]; then
+ _page_size_equals 4096
+ fi
+}
+
+set_conditions() {
+ _set_nvme_trtype "$@"
+}
+
+test() {
+ echo "Running ${TEST_NAME}"
+
+ local block_size dev last_sector ret sectors slba zone_sectors
+
+ _setup_nvmet
+ _register_test_cleanup _cleanup_nvmet_zoned_target
+ if ! _nvmet_zoned_target_setup; then
+ return 1
+ fi
+ dev="/dev/$(_find_nvme_ns "$def_subsys_uuid")"
+
+ sectors=$(cat /sys/block/nullb0/size)
+ zone_sectors=$(cat /sys/block/nullb0/queue/chunk_sectors)
+ block_size=$(cat /sys/block/nullb0/queue/logical_block_size)
+ last_sector=$(((sectors - 1) / zone_sectors * zone_sectors))
+ slba=$((last_sector * 512 / block_size))
+
+ src/nvme-zone-report "$dev" "$slba" >>"$FULL" 2>&1
+ ret=$?
+ case $ret in
+ 0) ;;
+ 1) echo "zone report contained stale data" ;;
+ *) echo "zone report checker failed" ;;
+ esac
+
+ _check_zone_report "$dev" 4096 1023 0
+ _check_zone_report "$dev" 8192 1023 15
+
+ _nvmet_zoned_target_cleanup
+
+ echo "Test complete"
+}
diff --git a/tests/nvme/072.out b/tests/nvme/072.out
new file mode 100644
index 0000000000000..3f765b30a22b0
--- /dev/null
+++ b/tests/nvme/072.out
@@ -0,0 +1,2 @@
+Running nvme/072
+Test complete
--
2.53.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH blktests 4/4] nvme/073: test that nvmet rejects a zone report NUMD that wraps
2026-10-14 17:00 [PATCH blktests 0/4] nvme: add nvmet zone report and FC regression tests Andrea Parri
` (2 preceding siblings ...)
2026-10-14 17:00 ` [PATCH blktests 3/4] nvme/072: test nvmet zone report initialization and length Andrea Parri
@ 2026-10-14 17:00 ` Andrea Parri
3 siblings, 0 replies; 5+ messages in thread
From: Andrea Parri @ 2026-10-14 17:00 UTC (permalink / raw)
To: Shin'ichiro Kawasaki, linux-block
Cc: Andrea Parri, Christoph Hellwig, Keith Busch, Sagi Grimberg,
Chaitanya Kulkarni, Daniel Wagner, linux-nvme
Verify that Zone Management Receive rejects a NUMD whose byte count
wraps a 32-bit calculation, while accepting an ordinary request. The
test runs on every configured transport.
The test fails on the unpatched kernel and passes with the fix applied.
Assisted-by: LLM
Signed-off-by: Andrea Parri <parri.andrea@gmail.com>
---
tests/nvme/073 | 46 ++++++++++++++++++++++++++++++++++++++++++++++
tests/nvme/073.out | 2 ++
2 files changed, 48 insertions(+)
create mode 100755 tests/nvme/073
create mode 100644 tests/nvme/073.out
diff --git a/tests/nvme/073 b/tests/nvme/073
new file mode 100755
index 0000000000000..c6d3d29f4b906
--- /dev/null
+++ b/tests/nvme/073
@@ -0,0 +1,46 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2026 Andrea Parri
+#
+# Check that the NVMe target rejects a zone report NUMD whose byte count
+# overflows a 32-bit value.
+#
+# Regression test for patch "nvmet: zns: reject a NUMD whose byte count wraps".
+
+. tests/nvme/rc
+. common/null_blk
+
+DESCRIPTION="reject an NVMe target zone report NUMD that wraps"
+QUICK=1
+
+requires() {
+ _nvme_requires
+ _have_loop
+ _require_kernel_nvme_target
+ _have_module null_blk
+ _have_kernel_options BLK_DEV_ZONED
+}
+
+set_conditions() {
+ _set_nvme_trtype "$@"
+}
+
+test() {
+ echo "Running ${TEST_NAME}"
+
+ local dev
+
+ _setup_nvmet
+ _register_test_cleanup _cleanup_nvmet_zoned_target
+ if ! _nvmet_zoned_target_setup; then
+ return 1
+ fi
+ dev="/dev/$(_find_nvme_ns "$def_subsys_uuid")"
+
+ _check_zone_report "$dev" 64 15 0
+ _check_zone_report "$dev" 64 0x4000000f 2
+
+ _nvmet_zoned_target_cleanup
+
+ echo "Test complete"
+}
diff --git a/tests/nvme/073.out b/tests/nvme/073.out
new file mode 100644
index 0000000000000..ed6690e578688
--- /dev/null
+++ b/tests/nvme/073.out
@@ -0,0 +1,2 @@
+Running nvme/073
+Test complete
--
2.53.0
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