diff options
Diffstat (limited to 'results/classifier/accel-gemma3:12b/vmm/2853')
| -rw-r--r-- | results/classifier/accel-gemma3:12b/vmm/2853 | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/results/classifier/accel-gemma3:12b/vmm/2853 b/results/classifier/accel-gemma3:12b/vmm/2853 new file mode 100644 index 00000000..b3ef55b2 --- /dev/null +++ b/results/classifier/accel-gemma3:12b/vmm/2853 @@ -0,0 +1,55 @@ + +double-free in vmdk_add_extent() +Description of problem: +A double-free issue in the VMDK driver occurs when handling snapshots. +The memory allocated for extent structures is freed twice: first in +vmdk_close (block/vmdk.c) and then in vmdk_add_extent (block/vmdk.c). +Steps to reproduce: +1. [test.raw](/uploads/deeb9dc3cab1916adadd211173cd175a/test.raw) +2. ./qemu-img snapshot -q -a test test.raw +Additional information: +<details> +<pre> +./qemu-img snapshot -q -a test test.raw +==18180==WARNING: ASan doesn't fully support makecontext/swapcontext functions and may produce false positives in some cases! +================================================================= +==18180==ERROR: AddressSanitizer: attempting double-free on 0x612000011bc0 in thread T0: + #0 0x5605ba505168 in realloc /usr/src/RPM/BUILD/llvm-11.0.1.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3 + #1 0x7f22be5fd6b7 in g_realloc (/lib64/libglib-2.0.so.0+0x5c6b7) + #2 0x5605ba866a79 in vmdk_add_extent /home/gerben/qemu-img_fuzz/build/../block/vmdk.c:570:18 + #3 0x5605ba86122e in vmdk_open_vmdk4 /home/gerben/qemu-img_fuzz/build/../block/vmdk.c:1059:11 + #4 0x5605ba86122e in vmdk_open_sparse /home/gerben/qemu-img_fuzz/build/../block/vmdk.c:1127:20 + #5 0x5605ba85723a in vmdk_open /home/gerben/qemu-img_fuzz/build/../block/vmdk.c:1371:19 + #6 0x5605ba803ca4 in bdrv_snapshot_goto /home/gerben/qemu-img_fuzz/build/../block/snapshot.c:299:20 + #7 0x5605baa8cdd2 in img_snapshot /home/gerben/qemu-img_fuzz/build/../qemu-img.c:3500:15 + #8 0x7f22bd559efc in __libc_start_main (/lib64/libc.so.6+0x27efc) + #9 0x5605ba4619f9 in _start /usr/src/RPM/BUILD/glibc-2.32-alt5.p10.3/csu/../sysdeps/x86_64/start.S:120 + +0x612000011bc0 is located 0 bytes inside of 272-byte region [0x612000011bc0,0x612000011cd0) +freed by thread T0 here: + #0 0x5605ba504aef in free /usr/src/RPM/BUILD/llvm-11.0.1.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:123:3 + #1 0x5605ba857e6d in vmdk_close /home/gerben/qemu-img_fuzz/build/../block/vmdk.c:2889:5 + #2 0x5605ba803bb2 in bdrv_snapshot_goto /home/gerben/qemu-img_fuzz/build/../block/snapshot.c:290:13 + #3 0x5605baa8cdd2 in img_snapshot /home/gerben/qemu-img_fuzz/build/../qemu-img.c:3500:15 + #4 0x7f22bd559efc in __libc_start_main (/lib64/libc.so.6+0x27efc) + +previously allocated by thread T0 here: + #0 0x5605ba505168 in realloc /usr/src/RPM/BUILD/llvm-11.0.1.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3 + #1 0x7f22be5fd6b7 in g_realloc (/lib64/libglib-2.0.so.0+0x5c6b7) + #2 0x5605ba86122e in vmdk_open_vmdk4 /home/gerben/qemu-img_fuzz/build/../block/vmdk.c:1059:11 + #3 0x5605ba86122e in vmdk_open_sparse /home/gerben/qemu-img_fuzz/build/../block/vmdk.c:1127:20 + #4 0x5605ba85723a in vmdk_open /home/gerben/qemu-img_fuzz/build/../block/vmdk.c:1371:19 + #5 0x5605ba56e3a2 in bdrv_open_driver /home/gerben/qemu-img_fuzz/build/../block.c:1660:15 + #6 0x5605ba57ea50 in bdrv_open_common /home/gerben/qemu-img_fuzz/build/../block.c:1985:11 + #7 0x5605ba57ea50 in bdrv_open_inherit /home/gerben/qemu-img_fuzz/build/../block.c:4153:11 + #8 0x5605ba585cb8 in bdrv_open /home/gerben/qemu-img_fuzz/build/../block.c:4248:12 + #9 0x5605ba637d4c in blk_new_open /home/gerben/qemu-img_fuzz/build/../block/block-backend.c:457:10 + #10 0x5605baa9193b in img_open_file /home/gerben/qemu-img_fuzz/build/../qemu-img.c:405:11 + #11 0x5605baa9143e in img_open /home/gerben/qemu-img_fuzz/build/../qemu-img.c:450:15 + #12 0x5605baa8cc71 in img_snapshot /home/gerben/qemu-img_fuzz/build/../qemu-img.c:3468:11 + #13 0x7f22bd559efc in __libc_start_main (/lib64/libc.so.6+0x27efc) + +SUMMARY: AddressSanitizer: double-free /usr/src/RPM/BUILD/llvm-11.0.1.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3 in realloc +==18180==ABORTING +</pre> +</details> |