lwIP - A Lightweight TCP/IP stack - Bugs: bug #41318, Bad memory ref in tcp_input()...
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bug #41318: Bad memory ref in tcp_input() after tcp_close()
Submitter: | Per Ekman <perekman> | ||
Submitted: | Thu 23 Jan 2014 10:17:28 AM UTC | ||
Category: | TCP | Severity: | 3 - Normal |
Item Group: | Crash Error | Status: | Fixed |
Privacy: | Public | Assigned to: | goldsimon |
Open/Closed: | Closed | Planned Release: | None |
lwIP version: | 1.4.1 |
Sat 21 Mar 2015 08:19:48 PM UTC, comment #3: |
Simon Goldschmidt <goldsimon> |
Thu 13 Feb 2014 07:55:08 AM UTC, comment #2: Or tcp_close() shouldn't do the equivalent of an abort
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Per Ekman <perekman> |
Fri 07 Feb 2014 01:01:23 PM UTC, comment #1: Relevant comment on lwip-devel on 2014-01-24:
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Simon Goldschmidt <goldsimon> |
Thu 23 Jan 2014 10:17:28 AM UTC, original submission:
Hello,
From: Per Ekman <address@hidden>
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Per Ekman <perekman> |
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Follow 4 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2015-03-21 | goldsimon | Status | None | Fixed | |
Assigned to | None | goldsimon | |||
Open/Closed | Open | Closed | |||
2014-01-23 | perekman | Carbon-Copy | - | Added -email is unavailable- |
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Corresponding source code
Re last comment:
The way the patch does it is not a good one since the next timer event can be too late when short in pcbs.
I've fixed it by letting tcp_close_shutdown check for tcp_input_pcb and delaying deallocation via TF_CLOSED.