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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2020/06/16 14:11:06 UTC
[GitHub] [incubator-nuttx] xiaoxiang781216 opened a new pull request #1257: tools/nxstyle: Fix AddressSanitizer error
xiaoxiang781216 opened a new pull request #1257:
URL: https://github.com/apache/incubator-nuttx/pull/1257
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==2474==ERROR: AddressSanitizer: stack-buffer-underflow on address 0x7fffb7e59b5f at pc 0x561fffec79f6 bp 0x7fffb7e59ac0 sp 0x7fffb7e59ab0
READ of size 1 at 0x7fffb7e59b5f thread T0
#0 0x561fffec79f5 in block_comment_width /home/xiaoxiang/mirtos/nuttx/tools/nxstyle.c:355
Address 0x7fffb7e59b5f is located in stack of thread T0 at offset 31 in frame
#0 0x561fffec7b90 in get_line_width /home/xiaoxiang/mirtos/nuttx/tools/nxstyle.c:419
This frame has 1 object(s):
[32, 544) 'line' (line 420) <== Memory access at offset 31 underflows this variable
HINT: this may be a false positive if your program uses some custom stack unwind mechanism, swapcontext or vfork
(longjmp and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: stack-buffer-underflow /home/xiaoxiang/mirtos/nuttx/tools/nxstyle.c:355 in block_comment_width
Shadow bytes around the buggy address:
0x100076fc3310: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100076fc3320: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100076fc3330: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100076fc3340: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100076fc3350: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x100076fc3360: 00 00 00 00 00 00 00 00 f1 f1 f1[f1]00 00 00 00
0x100076fc3370: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100076fc3380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100076fc3390: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100076fc33a0: 00 00 00 00 00 00 00 00 00 00 00 00 f3 f3 f3 f3
0x100076fc33b0: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
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
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
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
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==2474==ABORTING
Signed-off-by: Xiang Xiao <xi...@xiaomi.com>
Change-Id: Ie7dee3cdfdbbd04ea9cdb58e227afef07073cecd
## Summary
## Impact
## Testing
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[GitHub] [incubator-nuttx] patacongo merged pull request #1257: tools/nxstyle: Fix AddressSanitizer error
Posted by GitBox <gi...@apache.org>.
patacongo merged pull request #1257:
URL: https://github.com/apache/incubator-nuttx/pull/1257
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