From: leiting@... Date: 2015-03-11T08:15:56+00:00 Subject: [ruby-core:68494] [Ruby trunk - Bug #10961] [Open] Zlib corrupts data when receive signal Issue #10961 has been reported by Lei Ting. ---------------------------------------- Bug #10961: Zlib corrupts data when receive signal https://bugs.ruby-lang.org/issues/10961 * Author: Lei Ting * Status: Open * Priority: Normal * Assignee: * ruby -v: 2.0.0-p353 2.2.0 * Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN ---------------------------------------- When receiving signal on main thread, Zlib::Deflate.deflate will be interrupted in zstream_run_func (zlib.c), thus producing unfinished output buffer. Zlib::Deflate.deflate will return normally, without error, but the return value will be corrupted buffer and can't be decompressed. Preferred fix: zstream_run() should check if err is Z_STREAM_END, if not, raise an error instead of return normally. --- run zlib.rb to reproduce this problem: # ruby zlib.rb 37028 generating len=1000000000 string... string length=1000000000 compressing... ^CINT (press Ctrl+C or send a signal to the pid) zlib.rb:13:in `deflate': data error (Zlib::DataError) from zlib.rb:13:in `test_string' from zlib.rb:25:in `block in
' from zlib.rb:25:in `each' from zlib.rb:25:in `
' ---Files-------------------------------- zlib.rb (646 Bytes) -- https://bugs.ruby-lang.org/