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Merge pull request #39578 from ClickHouse/fix-self-executable-leak

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free compression and decompression contexts
This commit is contained in:
Alexey Milovidov 2022-07-26 07:47:32 +03:00 committed by GitHub
commit 69e8e56072
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2 changed files with 11 additions and 0 deletions
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9
utils/self-extracting-executable/compressor.cpp
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@ -103,12 +103,14 @@ int compress(int in_fd, int out_fd, int level, off_t & pointer, const struct sta
if (ZSTD_isError(check_result))
{
std::cerr << "Error (ZSTD): " << check_result << " " << ZSTD_getErrorName(check_result) << std::endl;
ZSTD_freeCCtx(cctx);
return 1;
}
check_result = ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1);
if (ZSTD_isError(check_result))
{
std::cerr << "Error (ZSTD): " << check_result << " " << ZSTD_getErrorName(check_result) << std::endl;
ZSTD_freeCCtx(cctx);
return 1;
}
@ -129,11 +131,13 @@ int compress(int in_fd, int out_fd, int level, off_t & pointer, const struct sta
if (output == MAP_FAILED)
{
perror(nullptr);
ZSTD_freeCCtx(cctx);
return 1;
}
if (-1 == lseek(out_fd, 0, SEEK_END))
{
perror(nullptr);
ZSTD_freeCCtx(cctx);
return 1;
}
@ -154,6 +158,7 @@ int compress(int in_fd, int out_fd, int level, off_t & pointer, const struct sta
perror(nullptr);
if (0 != munmap(output, 2 * max_block_size))
perror(nullptr);
ZSTD_freeCCtx(cctx);
return 1;
}
@ -161,6 +166,7 @@ int compress(int in_fd, int out_fd, int level, off_t & pointer, const struct sta
if (current_block_size != write_data(out_fd, output, current_block_size))
{
perror(nullptr);
ZSTD_freeCCtx(cctx);
return 1;
}
pointer += current_block_size;
@ -172,8 +178,11 @@ int compress(int in_fd, int out_fd, int level, off_t & pointer, const struct sta
0 != munmap(output, 2 * max_block_size))
{
perror(nullptr);
ZSTD_freeCCtx(cctx);
return 1;
}
ZSTD_freeCCtx(cctx);
return 0;
}

2
utils/self-extracting-executable/decompressor.cpp
View File

@ -151,6 +151,8 @@ int decompress(char * input, char * output, off_t start, off_t end, size_t max_n
--number_of_forks;
}
ZSTD_freeDCtx(dctx);
/// If error happen end of processed part will not reach end
if (in_pointer < end || error_happened)
return 1;