lwIP - A Lightweight TCP/IP stack - Bugs: bug #37405, 'err_tcp()' uses already freed...
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bug #37405: 'err_tcp()' uses already freed 'netconn' object
Submitter: | Christian Prochaska <cproc> | ||
Submitted: | Thu 20 Sep 2012 09:09:25 AM UTC | ||
Category: | sockets/netconn | Severity: | 3 - Normal |
Item Group: | Crash Error | Status: | Fixed |
Privacy: | Public | Assigned to: | goldsimon |
Open/Closed: | Closed | Planned Release: | None |
lwIP version: | Other |
Wed 26 Sep 2012 08:17:41 PM UTC, comment #3: |
Simon Goldschmidt <goldsimon> |
Wed 26 Sep 2012 07:53:11 PM UTC, comment #2: Fixed (in master) by resetting 'arg' and callback pointer from pcb when sys_mbox_trypost() fails in 'accept_function()'.
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Simon Goldschmidt <goldsimon> |
Thu 20 Sep 2012 02:59:00 PM UTC, comment #1: The problem seems to be that 'accept_function' first calls 'setup_tcp' (setting up the pcb callbacks) and then does not reset the pcb callbacks before freeing the new netconn.
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Simon Goldschmidt <goldsimon> |
Thu 20 Sep 2012 09:09:25 AM UTC, original submission:
Please have a look at this bug report:
|
Christian Prochaska <cproc> |
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Depends on the following items: None found
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Follow 7 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2012-09-26 | goldsimon | Category | None | sockets/netconn | |
Item Group | None | Crash Error | |||
Status | Confirmed | Fixed | |||
Open/Closed | Open | Closed | |||
2012-09-20 | goldsimon | Status | None | Confirmed | |
Assigned to | None | goldsimon | |||
Planned Release | 1.4.1 |
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Corresponding source code
... and fixed in 1.4.1 branch, too.