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authorVitaly Chikunov <vt@altlinux.org>2021-01-06 23:43:41 +0300
committerPanu Matilainen <pmatilai@redhat.com>2021-03-22 12:12:12 +0200
commit5c354742ec998bd32206a51df509979a3474945d (patch)
treed099860d17ac8482b084cee962bf15bf862794bf
parent691af1073e76dfd07fde690093de7dcf066d4914 (diff)
downloadrpm-5c354742ec998bd32206a51df509979a3474945d.tar.gz
rpmio: Fix lzopen_internal mode parsing when 'Tn' is used
When there is number after "T" (suggested number of threads or "0" for getncpus), lzopen_internal() mode parser would skip one byte, and when it's at the end of the string it would then parse undesired garbage from the memory, making intermittent compression failures. Fixes: 7740d1098 ("Add support for multithreaded xz compression") Signed-off-by: Vitaly Chikunov <vt@altlinux.org> (cherry picked from commit 405fc8998181353bd510864ca251dc233afec276)
-rw-r--r--rpmio/rpmio.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/rpmio/rpmio.c b/rpmio/rpmio.c
index bcae69035..0e1b5a10f 100644
--- a/rpmio/rpmio.c
+++ b/rpmio/rpmio.c
@@ -772,6 +772,7 @@ static LZFILE *lzopen_internal(const char *mode, int fd, int xz)
* should've processed
* */
while (isdigit(*++mode));
+ --mode;
}
#ifdef HAVE_LZMA_MT
else