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authorChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:24:58 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:27:06 +0000
commit33606b41d35115f887ea688b1a16f2ff85bf2fe4 (patch)
tree406b2c7b19a087ba437c68f3dbf0b589fa1d6150 /results/scraper/launchpad-without-comments/1926111
parentadedf8771bc4de3113041ca21bd4d0d1c0014b6a (diff)
downloadqemu-analysis-33606b41d35115f887ea688b1a16f2ff85bf2fe4.tar.gz
qemu-analysis-33606b41d35115f887ea688b1a16f2ff85bf2fe4.zip
add launchpad bug reports without comments
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+Assertion `tx_queue_idx <= s->txq_num' failed in vmxnet3_io_bar0_write
+
+=== Stacktrace ===
+
+qemu-fuzz-i386: ../hw/net/vmxnet3.c:1096: void vmxnet3_io_bar0_write(void *, hwaddr, uint64_t, unsigned int): Assertion `tx_queue_idx <= s->txq_num' failed.
+==602353== ERROR: libFuzzer: deadly signal
+#5 0x7fe4b93a7ce0 in raise signal/../sysdeps/unix/sysv/linux/raise.c:48:3
+#6 0x7fe4b9391536 in abort stdlib/abort.c:79:7
+#7 0x7fe4b939140e in __assert_fail_base assert/assert.c:92:3
+#8 0x7fe4b93a0661 in __assert_fail assert/assert.c:101:3
+#9 0x563e6cf5ebb5 in vmxnet3_io_bar0_write  hw/net/vmxnet3.c:1096:9
+#10 0x563e6eefdb00 in memory_region_write_accessor  softmmu/memory.c:491:5
+#11 0x563e6eefcfdd in access_with_adjusted_size  softmmu/memory.c:552:18
+#12 0x563e6eefac90 in memory_region_dispatch_write  softmmu/memory.c:1502:16
+#13 0x563e6e834e16 in flatview_write_continue  softmmu/physmem.c:2746:23
+#14 0x563e6e81cd38 in flatview_write  softmmu/physmem.c:2786:14
+#15 0x563e6e81c868 in address_space_write  softmmu/physmem.c:2878:18
+
+=== Reproducer ===
+cat << EOF | ./qemu-system-i386  -display none -machine accel=qtest, -m \
+512M -machine q35 -nodefaults -device vmxnet3,netdev=net0 -netdev \
+user,id=net0 -qtest stdio
+outl 0xcf8 0x80000810
+outl 0xcfc 0xe0000000
+outl 0xcf8 0x80000814
+outl 0xcf8 0x80000804
+outw 0xcfc 0x7
+outl 0xcf8 0x80000815
+outl 0xcfc 0xffff00b5
+write 0x0 0x1 0xe1
+write 0x1 0x1 0xfe
+write 0x2 0x1 0xbe
+write 0x3 0x1 0xba
+write 0xff00b020 0x4 0x0000feca
+write 0xe0000630 0x1 0x00
+EOF
+
+
+=== Testcase ===
+
+/*
+ * Autogenerated Fuzzer Test Case
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+
+#include "libqos/libqtest.h"
+
+static void test_fuzz(void) {
+    QTestState *s = qtest_init(" -display none , -m 512M -machine q35 -nodefaults "
+                               "-device vmxnet3,netdev=net0 -netdev user,id=net0");
+    qtest_outl(s, 0xcf8, 0x80000810);
+    qtest_outl(s, 0xcfc, 0xe0000000);
+    qtest_outl(s, 0xcf8, 0x80000814);
+    qtest_outl(s, 0xcf8, 0x80000804);
+    qtest_outw(s, 0xcfc, 0x7);
+    qtest_outl(s, 0xcf8, 0x80000815);
+    qtest_outl(s, 0xcfc, 0xffff00b5);
+    qtest_bufwrite(s, 0x0, "\xe1", 0x1);
+    qtest_bufwrite(s, 0x1, "\xfe", 0x1);
+    qtest_bufwrite(s, 0x2, "\xbe", 0x1);
+    qtest_bufwrite(s, 0x3, "\xba", 0x1);
+    qtest_bufwrite(s, 0xff00b020, "\x00\x00\xfe\xca", 0x4);
+    qtest_bufwrite(s, 0xe0000630, "\x00", 0x1);
+    qtest_quit(s);
+}
+int main(int argc, char **argv) {
+    const char *arch = qtest_get_arch();
+
+    g_test_init(&argc, &argv, NULL);
+
+    if (strcmp(arch, "i386") == 0) {
+        qtest_add_func("fuzz/test_fuzz", test_fuzz);
+    }
+
+    return g_test_run();
+}
+
+
+=== OSS-Fuzz Report ===
+https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33603
+https://oss-fuzz.com/testcase?key=6071483232288768
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