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[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issue please contact him.] ** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to zlib in Ubuntu. https://bugs.launchpad.net/bugs/1961427 Title: zlib: compressBound() returns an incorrect result on z15 Status in Ubuntu on IBM z Systems: New Status in zlib package in Ubuntu: New Status in zlib source package in Impish: New Status in zlib source package in Jammy: New Bug description: Description: zlib: compressBound() returns an incorrect result on z15 Symptom: Passing the result of compressBound() to compress() results in an error code. Problem: compressBound() is not adjusted for DFLTCC. Solution: Adjust compressBound() for DFLTCC like it's already done for deflateBound(). Since zlib project does not accept patches at the moment, the fix has been integrated into the DFLTCC pull request: https://github.com/madler/zlib/pull/410 The commitid is b25781e735363e04f6c56e21431c47e4afc50b17. Reproduction: z15 only: #include <assert.h> #include <stdlib.h> #include <zlib.h> int main() { Bytef in_buf[128], out_buf[1024]; for (size_t i = 0; i < sizeof(in_buf); i++) in_buf[i] = rand(); uLongf dest_len = compressBound(sizeof(in_buf)); assert(dest_len <= sizeof(out_buf)); int ret = compress(out_buf, &dest_len, in_buf, sizeof(in_buf)); assert(ret == Z_OK); } To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1961427/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp