40501 2021-07-15 16:04:42 +0300 crash in git format-patch --output with multiple commits (due to double free) 2021-07-15 16:06:55 +0300 1 1 4 Development Sisyphus git unstable x86_64 Linux NEW P5 minor --- 1 imz placeholder glebfm ldv placeholder vt qa-sisyphus oldest_to_newest 200543 0 imz 2021-07-15 16:04:42 +0300 git format-patch --output with multiple commits crashes. (The error message when it crashes can be different between different runs of the same command.) Here is how I reproduce this (in hasher): [builder@localhost ~]$ cat /.in/test-git-format-patch-segfault.sh #!/bin/sh -efuC set -o pipefail # set up case "${1-}" in --ini*) mkdir tmp-workdir cd tmp-workdir git init echo a >a git add a git commit -m A echo b >b git add b git commit -m B echo c >c git add c git commit -m C ;; *) cd tmp-workdir ;; esac # test git format-patch @^^..@ --output=out.txt [builder@localhost ~]$ git config --global user.email "you@example.com" [builder@localhost ~]$ git config --global user.name "Your Name" [builder@localhost ~]$ /.in/test-git-format-patch-segfault.sh --ini Initialized empty Git repository in /usr/src/tmp-workdir/.git/ [master (root-commit) 09a1525] A 1 file changed, 1 insertion(+) create mode 100644 a [master 2cc5aff] B 1 file changed, 1 insertion(+) create mode 100644 b [master e029363] C 1 file changed, 1 insertion(+) create mode 100644 c 0001-B.patch free(): double free detected in tcache 2 /.in/test-git-format-patch-segfault.sh: line 26: 236210 Aborted git format-patch @^^..@ --output=out.txt [builder@localhost ~]$ /.in/test-git-format-patch-segfault.sh 0001-B.patch 0002-C.patch [builder@localhost ~]$ /.in/test-git-format-patch-segfault.sh 0001-B.patch free(): double free detected in tcache 2 /.in/test-git-format-patch-segfault.sh: line 26: 236221 Aborted git format-patch @^^..@ --output=out.txt [builder@localhost ~]$ rpm -q git glibc-core git-2.29.3-alt2.x86_64 glibc-core-2.32-alt3.x86_64 200544 1 imz 2021-07-15 16:06:55 +0300 (Ответ для Ivan Zakharyaschev на комментарий #0) > git format-patch --output with multiple commits crashes. > > (The error message when it crashes can be different between different runs > of the same command.) On another system, with different commits, it was "malloc(): unaligned tcache chunk detected"