diff options
Diffstat (limited to 'poky/meta/recipes-devtools/qemu/qemu/CVE-2021-3507_2.patch')
| -rw-r--r-- | poky/meta/recipes-devtools/qemu/qemu/CVE-2021-3507_2.patch | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/poky/meta/recipes-devtools/qemu/qemu/CVE-2021-3507_2.patch b/poky/meta/recipes-devtools/qemu/qemu/CVE-2021-3507_2.patch new file mode 100644 index 0000000000..9f00d9c0d0 --- /dev/null +++ b/poky/meta/recipes-devtools/qemu/qemu/CVE-2021-3507_2.patch @@ -0,0 +1,115 @@ +From ec5725982f811d9728ad1f9940df0e9349397e67 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= <philmd@redhat.com> +Date: Thu, 18 Nov 2021 12:57:33 +0100 +Subject: [PATCH 2/2] tests/qtest/fdc-test: Add a regression test for + CVE-2021-3507 +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Add the reproducer from https://gitlab.com/qemu-project/qemu/-/issues/339 + +Without the previous commit, when running 'make check-qtest-i386' +with QEMU configured with '--enable-sanitizers' we get: + + ==4028352==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x619000062a00 at pc 0x5626d03c491a bp 0x7ffdb4199410 sp 0x7ffdb4198bc0 + READ of size 786432 at 0x619000062a00 thread T0 + #0 0x5626d03c4919 in __asan_memcpy (qemu-system-i386+0x1e65919) + #1 0x5626d1c023cc in flatview_write_continue softmmu/physmem.c:2787:13 + #2 0x5626d1bf0c0f in flatview_write softmmu/physmem.c:2822:14 + #3 0x5626d1bf0798 in address_space_write softmmu/physmem.c:2914:18 + #4 0x5626d1bf0f37 in address_space_rw softmmu/physmem.c:2924:16 + #5 0x5626d1bf14c8 in cpu_physical_memory_rw softmmu/physmem.c:2933:5 + #6 0x5626d0bd5649 in cpu_physical_memory_write include/exec/cpu-common.h:82:5 + #7 0x5626d0bd0a07 in i8257_dma_write_memory hw/dma/i8257.c:452:9 + #8 0x5626d09f825d in fdctrl_transfer_handler hw/block/fdc.c:1616:13 + #9 0x5626d0a048b4 in fdctrl_start_transfer hw/block/fdc.c:1539:13 + #10 0x5626d09f4c3e in fdctrl_write_data hw/block/fdc.c:2266:13 + #11 0x5626d09f22f7 in fdctrl_write hw/block/fdc.c:829:9 + #12 0x5626d1c20bc5 in portio_write softmmu/ioport.c:207:17 + + 0x619000062a00 is located 0 bytes to the right of 512-byte region [0x619000062800,0x619000062a00) + allocated by thread T0 here: + #0 0x5626d03c66ec in posix_memalign (qemu-system-i386+0x1e676ec) + #1 0x5626d2b988d4 in qemu_try_memalign util/oslib-posix.c:210:11 + #2 0x5626d2b98b0c in qemu_memalign util/oslib-posix.c:226:27 + #3 0x5626d09fbaf0 in fdctrl_realize_common hw/block/fdc.c:2341:20 + #4 0x5626d0a150ed in isabus_fdc_realize hw/block/fdc-isa.c:113:5 + #5 0x5626d2367935 in device_set_realized hw/core/qdev.c:531:13 + + SUMMARY: AddressSanitizer: heap-buffer-overflow (qemu-system-i386+0x1e65919) in __asan_memcpy + Shadow bytes around the buggy address: + 0x0c32800044f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c3280004500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + 0x0c3280004510: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + 0x0c3280004520: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + 0x0c3280004530: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + =>0x0c3280004540:[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c3280004550: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c3280004560: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c3280004570: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c3280004580: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c3280004590: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd + Shadow byte legend (one shadow byte represents 8 application bytes): + Addressable: 00 + Heap left redzone: fa + Freed heap region: fd + ==4028352==ABORTING + +[ kwolf: Added snapshot=on to prevent write file lock failure ] + +Reported-by: Alexander Bulekov <alxndr@bu.edu> +Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> +Reviewed-by: Alexander Bulekov <alxndr@bu.edu> +Signed-off-by: Kevin Wolf <kwolf@redhat.com> + +Upstream-Status: Backport [46609b90d9e3a6304def11038a76b58ff43f77bc] +CVE: CVE-2021-3507 + +Signed-off-by: Sakib Sajal <sakib.sajal@windriver.com> +--- + tests/qtest/fdc-test.c | 21 +++++++++++++++++++++ + 1 file changed, 21 insertions(+) + +diff --git a/tests/qtest/fdc-test.c b/tests/qtest/fdc-test.c +index 8f6eee84a..6f5850354 100644 +--- a/tests/qtest/fdc-test.c ++++ b/tests/qtest/fdc-test.c +@@ -583,6 +583,26 @@ static void test_cve_2021_20196(void) + qtest_quit(s); + } + ++static void test_cve_2021_3507(void) ++{ ++ QTestState *s; ++ ++ s = qtest_initf("-nographic -m 32M -nodefaults " ++ "-drive file=%s,format=raw,if=floppy,snapshot=on", ++ test_image); ++ qtest_outl(s, 0x9, 0x0a0206); ++ qtest_outw(s, 0x3f4, 0x1600); ++ qtest_outw(s, 0x3f4, 0x0000); ++ qtest_outw(s, 0x3f4, 0x0000); ++ qtest_outw(s, 0x3f4, 0x0000); ++ qtest_outw(s, 0x3f4, 0x0200); ++ qtest_outw(s, 0x3f4, 0x0200); ++ qtest_outw(s, 0x3f4, 0x0000); ++ qtest_outw(s, 0x3f4, 0x0000); ++ qtest_outw(s, 0x3f4, 0x0000); ++ qtest_quit(s); ++} ++ + int main(int argc, char **argv) + { + int fd; +@@ -614,6 +634,7 @@ int main(int argc, char **argv) + qtest_add_func("/fdc/read_no_dma_19", test_read_no_dma_19); + qtest_add_func("/fdc/fuzz-registers", fuzz_registers); + qtest_add_func("/fdc/fuzz/cve_2021_20196", test_cve_2021_20196); ++ qtest_add_func("/fdc/fuzz/cve_2021_3507", test_cve_2021_3507); + + ret = g_test_run(); + +-- +2.33.0 + |