Bug 1652635
| Summary: | There is a heap-buffer-overflow that the heap is allocated at src/generator_spgemm_csc_reader.c:125 and triggered at function libxsmm_sparse_csc_reader in libxsmm. | ||||||
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| Product: | [Fedora] Fedora | Reporter: | shuitao gan <ganshuitao> | ||||
| Component: | libxsmm | Assignee: | Dave Love <dave.love> | ||||
| Status: | CLOSED NOTABUG | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | urgent | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | rawhide | CC: | dave.love, dominik, ganshuitao | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | All | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2018-11-23 16:28:14 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Like #1652633, what source is this? (In reply to Dave Love from comment #1) > Like #1652633, what source is this? https://github.com/hfp/libxsmm This doesn't seem to be a Fedora bug. |
Created attachment 1507971 [details] ./libxsmm_gemm_generator sparse b a 10 10 10 1 1 1 1 1 1 0 wsm nopf SP POC3 version: libxsmm release-1.10 summary: There is a heap-buffer-overflow that the heap is allocated at src/generator_spgemm_csc_reader.c:125 and triggered at function libxsmm_sparse_csc_reader in libxsmm. Description: The asan debug is as follows: $./libxsmm_gemm_generator sparse b a 10 10 10 1 1 1 1 1 1 0 wsm nopf SP POC3 ==57982==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60200000efa8 at pc 0x000000444861 bp 0x7fff4a1d77d0 sp 0x7fff4a1d77c0 WRITE of size 4 at 0x60200000efa8 thread T0 #0 0x444860 in libxsmm_sparse_csc_reader src/generator_spgemm_csc_reader.c:178 #1 0x405751 in libxsmm_generator_spgemm src/generator_spgemm.c:279 #2 0x40225a in main src/libxsmm_generator_gemm_driver.c:318 #3 0x7f38cd057a3f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x20a3f) #4 0x402ea8 in _start (/home/company/real_sanitize/poc_check/libxsmm/libxsmm_gemm_generator_asan+0x402ea8) 0x60200000efa8 is located 8 bytes to the left of 8-byte region [0x60200000efb0,0x60200000efb8) allocated by thread T0 here: #0 0x7f38cd6b79aa in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x989aa) #1 0x443fed in libxsmm_sparse_csc_reader src/generator_spgemm_csc_reader.c:124 #2 0x7fff4a1d7bcf (<unknown module>) #3 0x439 (<unknown module>) SUMMARY: AddressSanitizer: heap-buffer-overflow src/generator_spgemm_csc_reader.c:178 libxsmm_sparse_csc_reader Shadow bytes around the buggy address: 0x0c047fff9da0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff9db0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff9dc0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff9dd0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff9de0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa =>0x0c047fff9df0: fa fa 01 fa fa[fa]00 fa fa fa 04 fa fa fa 04 fa 0x0c047fff9e00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff9e10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff9e20: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff9e30: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c047fff9e40: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Heap right redzone: fb Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack partial redzone: f4 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe ==57982==ABORTING