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-rw-r--r--Lib/tarfile.py10
-rw-r--r--Misc/NEWS5
2 files changed, 7 insertions, 8 deletions
diff --git a/Lib/tarfile.py b/Lib/tarfile.py
index 6bdbf36..2560562 100644
--- a/Lib/tarfile.py
+++ b/Lib/tarfile.py
@@ -2366,17 +2366,11 @@ class TarFile(object):
try:
g = grp.getgrnam(tarinfo.gname)[2]
except KeyError:
- try:
- g = grp.getgrgid(tarinfo.gid)[2]
- except KeyError:
- g = os.getgid()
+ g = tarinfo.gid
try:
u = pwd.getpwnam(tarinfo.uname)[2]
except KeyError:
- try:
- u = pwd.getpwuid(tarinfo.uid)[2]
- except KeyError:
- u = os.getuid()
+ u = tarinfo.uid
try:
if tarinfo.issym() and hasattr(os, "lchown"):
os.lchown(targetpath, u, g)
diff --git a/Misc/NEWS b/Misc/NEWS
index b15876b..16e0e40 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -271,6 +271,11 @@ Core and Builtins
Library
-------
+- Issue #12841: tarfile unnecessarily checked the existence of numerical user
+ and group ids on extraction. If one of them did not exist the respective id
+ of the current user (i.e. root) was used for the file and ownership
+ information was lost.
+
- Issue #12888: Fix a bug in HTMLParser.unescape that prevented it to escape
more than 128 entities. Patch by Peter Otten.