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pespin gerrit-no-reply at lists.osmocom.orgpespin has posted comments on this change. ( https://gerrit.osmocom.org/c/libosmocore/+/15265 ) Change subject: fix: vty crash by logging to killed telnet session ...................................................................... Patch Set 1: (6 comments) https://gerrit.osmocom.org/#/c/15265/1//COMMIT_MSG Commit Message: https://gerrit.osmocom.org/#/c/15265/1//COMMIT_MSG@11 PS1, Line 11: segfaults: the vty->obuf is already NULL. Why do we try to send a message to a killed session first of all? That seems to be the route of the issue. https://gerrit.osmocom.org/#/c/15265/1//COMMIT_MSG@13 PS1, Line 13: In vty_out(), guard against this situation by not composing an output if Fine with this part so far. https://gerrit.osmocom.org/#/c/15265/1//COMMIT_MSG@16 PS1, Line 16: Also guard all buffer_*() functions against a NULL buffer argument, which this looks like a hack to fix other parts of the code which may be wrong, and looks like it should be fixed in other places rather than here. https://gerrit.osmocom.org/#/c/15265/1//COMMIT_MSG@20 PS1, Line 20: Related: OS#4164 This ticket doesn't look related to me. https://gerrit.osmocom.org/#/c/15265/1/src/vty/buffer.c File src/vty/buffer.c: https://gerrit.osmocom.org/#/c/15265/1/src/vty/buffer.c@95 PS1, Line 95: if (!b) I don't think these checks are really needed to fix the issue at hand, so at least they should go into a separate commit. https://gerrit.osmocom.org/#/c/15265/1/src/vty/vty.c File src/vty/vty.c: https://gerrit.osmocom.org/#/c/15265/1/src/vty/vty.c@266 PS1, Line 266: * of this same (killed) telnet session. See OS#4146. */ OS#4146 (https://osmocom.org/issues/4146) seems non-related to what you say here, probably wrong ticket number. -- To view, visit https://gerrit.osmocom.org/c/libosmocore/+/15265 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: libosmocore Gerrit-Branch: master Gerrit-Change-Id: Idca3f54dc986abf6784790c12e69e02bdf77cb41 Gerrit-Change-Number: 15265 Gerrit-PatchSet: 1 Gerrit-Owner: neels <nhofmeyr at sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-CC: pespin <pespin at sysmocom.de> Gerrit-Comment-Date: Thu, 22 Aug 2019 10:25:44 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Gerrit-MessageType: comment -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20190822/7a15252d/attachment.htm>