lwIP - A Lightweight TCP/IP stack - Bugs: bug #48539, Possible crash when packet...
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bug #48539: Possible crash when packet received in SYN_SENT state
Submitter: | Ambroz Bizjak <abizjak> | ||
Submitted: | Sun 17 Jul 2016 09:44:55 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: | git head |
Tue 19 Jul 2016 07:23:57 PM UTC, comment #3: |
Simon Goldschmidt <goldsimon> |
Tue 19 Jul 2016 05:01:48 PM UTC, comment #2: Hi Simon,
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Ambroz Bizjak <abizjak> |
Tue 19 Jul 2016 10:49:21 AM UTC, comment #1: Correct. We have to check "unsent" in this case, too. |
Simon Goldschmidt <goldsimon> |
Sun 17 Jul 2016 09:44:55 AM UTC, original submission:
While looking at the code I see a hazard in the tcp_process() SYN_SENT case when accessing pcb->unacked->tcphdr->seqno.
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Ambroz Bizjak <abizjak> |
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Follow 4 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2016-07-19 | goldsimon | Status | Confirmed | Fixed | |
Open/Closed | Open | Closed | |||
2016-07-19 | goldsimon | Status | None | Confirmed | |
Assigned to | None | goldsimon |
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Corresponding source code
Fixed, thanks for reporting.