[S] Change in pysim[master]: bertlv_parse_len: Fix input data is smaller than num length octets

laforge has submitted this change. ( https://gerrit.osmocom.org/c/pysim/+/35282?usp=email ) Change subject: bertlv_parse_len: Fix input data is smaller than num length octets ...................................................................... bertlv_parse_len: Fix input data is smaller than num length octets This can happen if there's a file with invalid encoding on the card, such as a tag followed by all-ff. Let's gracefully ignore it and return zero bytes as response. Change-Id: Ic44557368a6034dbf4bb021ab23a57927c22def0 --- M pySim/utils.py 1 file changed, 15 insertions(+), 0 deletions(-) Approvals: fixeria: Looks good to me, but someone else must approve Jenkins Builder: Verified laforge: Looks good to me, approved diff --git a/pySim/utils.py b/pySim/utils.py index 44800fb..23b26f9 100644 --- a/pySim/utils.py +++ b/pySim/utils.py @@ -314,6 +314,8 @@ else: num_len_oct = binary[0] & 0x7f length = 0 + if len(binary) < num_len_oct + 1: + return (0, b'') for i in range(1, 1+num_len_oct): length <<= 8 length |= binary[i] -- To view, visit https://gerrit.osmocom.org/c/pysim/+/35282?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: pysim Gerrit-Branch: master Gerrit-Change-Id: Ic44557368a6034dbf4bb021ab23a57927c22def0 Gerrit-Change-Number: 35282 Gerrit-PatchSet: 2 Gerrit-Owner: laforge &lt;laforge(a)osmocom.org&gt; Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: fixeria &lt;vyanitskiy(a)sysmocom.de&gt; Gerrit-Reviewer: laforge &lt;laforge(a)osmocom.org&gt; Gerrit-MessageType: merged