diff options
Diffstat (limited to 'results/scraper/launchpad-without-comments/1888606')
| -rw-r--r-- | results/scraper/launchpad-without-comments/1888606 | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/results/scraper/launchpad-without-comments/1888606 b/results/scraper/launchpad-without-comments/1888606 new file mode 100644 index 00000000..2bf42dfb --- /dev/null +++ b/results/scraper/launchpad-without-comments/1888606 @@ -0,0 +1,139 @@ +Heap-use-after-free in virtio_gpu_ctrl_response + +Hello, +Here is a reproducer (build with --enable-sanitizers): +cat << EOF | ./i386-softmmu/qemu-system-i386 -nographic -M pc -nodefaults -m 512M -device virtio-vga -qtest stdio +outl 0xcf8 0x80001018 +outl 0xcfc 0xe0800000 +outl 0xcf8 0x80001020 +outl 0xcf8 0x80001004 +outw 0xcfc 0x7 +writeq 0xe0801024 0x10646c00776c6cff +writeq 0xe080102d 0xe0801000320000 +writeq 0xe0801015 0x12b2901ba000000 +write 0x10646c02 0x1 0x2c +write 0x999 0x1 0x25 +write 0x8 0x1 0x78 +write 0x2c7 0x1 0x32 +write 0x2cb 0x1 0xff +write 0x2cc 0x1 0x7e +writeq 0xe0803000 0xf2b8f0540ff83 +EOF + +The ASAN trace: +==29798==ERROR: AddressSanitizer: heap-use-after-free on address 0x60d0000050e8 at pc 0x560629814761 bp 0x7ffe916eb1e0 sp 0x7ffe916eb1d8 +READ of size 8 at 0x60d0000050e8 thread T0 + #0 0x560629814760 in virtio_gpu_ctrl_response /home/alxndr/Development/qemu/hw/display/virtio-gpu.c:181:42 + #1 0x56062981adc8 in virtio_gpu_ctrl_response_nodata /home/alxndr/Development/qemu/hw/display/virtio-gpu.c:193:5 + #2 0x56062981adc8 in virtio_gpu_simple_process_cmd /home/alxndr/Development/qemu/hw/display/virtio-gpu.c:791:9 + #3 0x5606298175f8 in virtio_gpu_process_cmdq /home/alxndr/Development/qemu/hw/display/virtio-gpu.c:820:9 + #4 0x56062a8f1c96 in aio_bh_poll /home/alxndr/Development/qemu/util/async.c:164:13 + #5 0x56062a887b9d in aio_dispatch /home/alxndr/Development/qemu/util/aio-posix.c:380:5 + #6 0x56062a8f6b1c in aio_ctx_dispatch /home/alxndr/Development/qemu/util/async.c:306:5 + #7 0x7f0d5e1cf9ed in g_main_context_dispatch (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x4e9ed) + #8 0x56062a919571 in glib_pollfds_poll /home/alxndr/Development/qemu/util/main-loop.c:217:9 + #9 0x56062a919571 in os_host_main_loop_wait /home/alxndr/Development/qemu/util/main-loop.c:240:5 + #10 0x56062a919571 in main_loop_wait /home/alxndr/Development/qemu/util/main-loop.c:516:11 + #11 0x560629094a64 in qemu_main_loop /home/alxndr/Development/qemu/softmmu/vl.c:1676:9 + #12 0x56062a749ab5 in main /home/alxndr/Development/qemu/softmmu/main.c:49:5 + #13 0x7f0d5cd55e0a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x26e0a) + #14 0x5606288ba889 in _start (/home/alxndr/Development/qemu/build/i386-softmmu/qemu-system-i386+0x24d0889) + +0x60d0000050e8 is located 56 bytes inside of 136-byte region [0x60d0000050b0,0x60d000005138) +freed by thread T0 here: + #0 0x56062893250d in free (/home/alxndr/Development/qemu/build/i386-softmmu/qemu-system-i386+0x254850d) + #1 0x560629827730 in virtio_gpu_reset /home/alxndr/Development/qemu/hw/display/virtio-gpu.c:1160:9 + #2 0x560628e81d34 in virtio_reset /home/alxndr/Development/qemu/hw/virtio/virtio.c:1999:9 + #3 0x560629f08773 in virtio_pci_reset /home/alxndr/Development/qemu/hw/virtio/virtio-pci.c:1841:5 + #4 0x560629043ab6 in memory_region_write_accessor /home/alxndr/Development/qemu/softmmu/memory.c:483:5 + #5 0x560629043473 in access_with_adjusted_size /home/alxndr/Development/qemu/softmmu/memory.c:544:18 + #6 0x560629042c99 in memory_region_dispatch_write /home/alxndr/Development/qemu/softmmu/memory.c + #7 0x560628990a37 in flatview_write_continue /home/alxndr/Development/qemu/exec.c:3176:23 + #8 0x56062899041a in address_space_write_cached_slow /home/alxndr/Development/qemu/exec.c:3789:12 + #9 0x560628e6f9bb in vring_used_write /home/alxndr/Development/qemu/hw/virtio/virtio.c:347:5 + #10 0x560628e6f9bb in virtqueue_split_fill /home/alxndr/Development/qemu/hw/virtio/virtio.c:788:5 + #11 0x560628e6f9bb in virtqueue_fill /home/alxndr/Development/qemu/hw/virtio/virtio.c:852:9 + #12 0x560628e7205e in virtqueue_push /home/alxndr/Development/qemu/hw/virtio/virtio.c:917:5 + #13 0x560629814246 in virtio_gpu_ctrl_response /home/alxndr/Development/qemu/hw/display/virtio-gpu.c:180:5 + #14 0x56062981adc8 in virtio_gpu_ctrl_response_nodata /home/alxndr/Development/qemu/hw/display/virtio-gpu.c:193:5 + #15 0x56062981adc8 in virtio_gpu_simple_process_cmd /home/alxndr/Development/qemu/hw/display/virtio-gpu.c:791:9 + #16 0x5606298175f8 in virtio_gpu_process_cmdq /home/alxndr/Development/qemu/hw/display/virtio-gpu.c:820:9 + #17 0x56062a8f1c96 in aio_bh_poll /home/alxndr/Development/qemu/util/async.c:164:13 + #18 0x56062a887b9d in aio_dispatch /home/alxndr/Development/qemu/util/aio-posix.c:380:5 + #19 0x56062a8f6b1c in aio_ctx_dispatch /home/alxndr/Development/qemu/util/async.c:306:5 + #20 0x7f0d5e1cf9ed in g_main_context_dispatch (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x4e9ed) + +previously allocated by thread T0 here: + #0 0x56062893278d in malloc (/home/alxndr/Development/qemu/build/i386-softmmu/qemu-system-i386+0x254878d) + #1 0x7f0d5e1d5500 in g_malloc (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x54500) + #2 0x560628e7844b in virtqueue_split_pop /home/alxndr/Development/qemu/hw/virtio/virtio.c:1524:12 + #3 0x560628e7844b in virtqueue_pop /home/alxndr/Development/qemu/hw/virtio/virtio.c:1693:16 + #4 0x560629829633 in virtio_gpu_handle_ctrl /home/alxndr/Development/qemu/hw/display/virtio-gpu.c:878:15 + #5 0x560629829633 in virtio_gpu_ctrl_bh /home/alxndr/Development/qemu/hw/display/virtio-gpu.c:893:5 + #6 0x56062a8f1c96 in aio_bh_poll /home/alxndr/Development/qemu/util/async.c:164:13 + #7 0x56062a887b9d in aio_dispatch /home/alxndr/Development/qemu/util/aio-posix.c:380:5 + #8 0x56062a8f6b1c in aio_ctx_dispatch /home/alxndr/Development/qemu/util/async.c:306:5 + #9 0x7f0d5e1cf9ed in g_main_context_dispatch (/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x4e9ed) + + +With -trace virtio\* -trace pci\* : +[I 1595480025.666147] OPENED +31900@1595480025.706962:virtio_set_status vdev 0x633000019640 val 0 +31900@1595480025.710297:virtio_set_status vdev 0x633000019640 val 0 +[R +0.046276] outl 0xcf8 0x80001018 +OK +[S +0.046313] OK +[R +0.046332] outl 0xcfc 0xe0800000 +31900@1595480025.712490:pci_cfg_write virtio-vga 02:0 @0x18 <- 0xe0800000 +OK +[S +0.046356] OK +[R +0.046365] outl 0xcf8 0x80001020 +OK +[S +0.046370] OK +[R +0.046379] outl 0xcf8 0x80001004 +OK +[S +0.046383] OK +[R +0.046391] outw 0xcfc 0x7 +31900@1595480025.712544:pci_cfg_write virtio-vga 02:0 @0x4 <- 0x7 +31900@1595480025.712551:pci_update_mappings_add d=0x633000000800 00:02.0 2,0xe0800000+0x4000 +OK +[S +0.047572] OK +[R +0.047597] writeq 0xe0801024 0x10646c00776c6cff +OK +[S +0.047610] OK +[R +0.047619] writeq 0xe080102d 0xe0801000320000 +OK +[S +0.047627] OK +[R +0.047636] writeq 0xe0801015 0x12b2901ba000000 +OK +[S +0.047650] OK +[R +0.047660] write 0x10646c02 0x1 0x2c +OK +[S +0.047769] OK +[R +0.047782] write 0x999 0x1 0x25 +OK +[S +0.047907] OK +[R +0.047920] write 0x8 0x1 0x78 +OK +[S +0.047927] OK +[R +0.047935] write 0x2c7 0x1 0x32 +OK +[S +0.047941] OK +[R +0.047949] write 0x2cb 0x1 0xff +OK +[S +0.047954] OK +[R +0.047962] write 0x2cc 0x1 0x7e +OK +[S +0.047967] OK +[R +0.047975] writeq 0xe0803000 0xf2b8f0540ff83 +31900@1595480025.714133:virtio_queue_notify vdev 0x633000019640 n 0 vq 0x7fe20b13d800 +OK +[S +0.047996] OK +31900@1595480025.714386:virtio_notify vdev 0x633000019640 vq 0x7fe20b13d800 +31900@1595480025.714406:virtio_gpu_features virgl 0 +31900@1595480025.714413:virtio_notify vdev 0x633000019640 vq 0x7fe20b13d800 +31900@1595480025.714421:virtio_set_status vdev 0x633000019640 val 0 +*CRASH* + +Please let me know if I can provide any further info. +-Alex \ No newline at end of file |