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- check for pxDuplicateNetworkBufferWithDescriptor returning NULL #47

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RolinBert
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Check for pxDuplicateNetworkBufferWithDescriptor returning NULL

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pxDuplicateNetworkBufferWithDescriptor in FreeRTOS_IP.c might return a NULL pointer => we need to check for this case and avoid dereferencing a NULL pointer.

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@htibosch
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Thanks a lot, @RolinBert !
I think that your diagnosis is correct, and also the remedy. I recommend merging this tiny PR.
Hein

aggarg
aggarg previously approved these changes Oct 26, 2020
@AniruddhaKanhere AniruddhaKanhere dismissed stale reviews from aggarg and themself via edfad86 October 26, 2020 18:25
@AniruddhaKanhere
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AniruddhaKanhere commented Oct 26, 2020

Thank you @RolinBert for spotting this issue and creating a PR to fix it!
We shall get this PR merged quickly.

P.S. I had to push a couple of commits to rebase your PR and uncrustify the sources so that this PR can be merged.

@AniruddhaKanhere AniruddhaKanhere merged commit a92d39f into FreeRTOS:master Oct 26, 2020
AniruddhaKanhere added a commit that referenced this pull request Oct 27, 2020
* Repair asynchronous DNS lookup (#37)

Co-authored-by: Hein Tibosch <hein@htibosch.net>

* WIFINetworkParams_t is changing. Update to conform (#36)

* WIFINetworkParams_t is changing. Update to conform

* uncrustify (v0.66)

Co-authored-by: Aniruddha Kanhere <60444055+AniruddhaKanhere@users.noreply.github.com>

* added a network interface for the LPC54018 ethernet (#39)

* added a network interface for the LPC54018 ethernet

Co-authored-by: Joseph Julicher <jjulicher@mac.com>

* FreeRTOS+TCP Zynq: check frame type before calculating ICMP checksum (v4) (#19)

Co-authored-by: Hein Tibosch <hein@htibosch.net>
Co-authored-by: Aniruddha Kanhere <60444055+AniruddhaKanhere@users.noreply.github.com>

* A network driver for Xilinx UltraScale+ 64-bits(v2) (#22)

* A network driver for Xilinx UltraScale+ 64-bits(v2)

* Uncrustify

Co-authored-by: Hein Tibosch <hein@htibosch.net>
Co-authored-by: AniruddhaKanhere <kanherea@amazon.com>
Co-authored-by: Aniruddha Kanhere <60444055+AniruddhaKanhere@users.noreply.github.com>

* Adding a network interface for STM32H7xx(v2) (#21)

* Adding a network interface for STM32H7xx(v2)

* Uncrustify

* Uncrustify v2

* Remove trailing whitespace

Co-authored-by: Hein Tibosch <hein@htibosch.net>
Co-authored-by: AniruddhaKanhere <kanherea@amazon.com>
Co-authored-by: Aniruddha Kanhere <60444055+AniruddhaKanhere@users.noreply.github.com>

* FreeRTOS+TCP compatibility with 64-bit platforms (v2) (#20)

* FreeRTOS+TCP compatibility with 64-bit platforms (v2)

* Uncrustify

Co-authored-by: Hein Tibosch <hein@htibosch.net>
Co-authored-by: Aniruddha Kanhere <60444055+AniruddhaKanhere@users.noreply.github.com>
Co-authored-by: AniruddhaKanhere <kanherea@amazon.com>

* buffer fixes to the NetworkInterface for the LCP54018 (#41)

* added a network interface for the LPC54018 ethernet

* fixed the buffers so DHCP is now working

* network buffers fixed

* network buffers fixed

Co-authored-by: Aniruddha Kanhere <60444055+AniruddhaKanhere@users.noreply.github.com>

* Cleanup as a result of Hein's code review (#43)

* added a network interface for the LPC54018 ethernet

* fixed the buffers so DHCP is now working

* network buffers fixed

* network buffers fixed

* added a network interface for the LPC54018 ethernet

* improvements from Hein's comments, thanks

* final changes based upon Hein's review

* uncrustifying the NetworkInterface.c for LPC54018

Co-authored-by: Aniruddha Kanhere <60444055+AniruddhaKanhere@users.noreply.github.com>

* Add spell check (#23)

* Add the spell-check files

* Add lexicon.txt file after generating it.

* Update the allowed name list

* Added some more words to the lexicon

* final revision of additions

* Update ci.yml

* Update ci.yml

* Delete lexicon.txt

* Rename temp.txt to lexicon.txt

* Ignore the portable directory

* Update ci.yml

* Update ci.yml

* Update ci.yml

* Update find-unknown-comment-words

* Update ci.yml

* Make all letters lowercase

* Update the lexicon and fix some typos

* Add more details and then add lexicon

* remove spell directory from tools

* Remove duplicate instances and sort the words

* Update lexicon after Gary's comments (and test)

* Update the words list

* Correct word spelling

* Update lexicon.txt

Co-authored-by: Gary Wicker <14828980+gkwicker@users.noreply.github.com>

* Synchronized the MAC address with main.c

* Uncrustify LPC54018 network interface

* removed extra prints (#48)

* Uncrustify (#44)

* Create manifest.yml

* Remove trailing whitespace

* Update manifest.yml

* Corrected a typo

* Uncrustify C files

* Uncrustify header files

* Update ci.yml

* Update ci.yml

* Uncrustify with version 0.67

* Spelling corrections

* uncrustify run

* - check for pxDuplicateNetworkBufferWithDescriptor returning NULL (#47)

* - check for pxDuplicateNetworkBufferWithDescriptor returning NULL

* Uncrustify the sources

Co-authored-by: Robert Korn <Robert@jrkorn.de>
Co-authored-by: Aniruddha Kanhere <60444055+AniruddhaKanhere@users.noreply.github.com>
Co-authored-by: AniruddhaKanhere <kanherea@amazon.com>

* Added CODEOWNERS to require PRBR review (#50)

* Add comments for Doxygen and add doxygen check (#46)

* Create manifest.yml

* Remove trailing whitespace

* Update manifest.yml

* Corrected a typo

* Add the config file

* Update doxygen and Update some files

* Add the CI check

* Add documentation for doxygen

* Uncrustify

* temp

* Add the files individually

* Update

* Added 2 c files

* Added 2 c files v2

* Added DNS and IP

* Added more comments for doxygen

* Added more comments

* Sockets.c added

* Sockets and TCP_IP

* Added UDP_IP.c

* Remove doxygen output

* Remove a typo

* Spelling corrections

* Some spelling corrections

* Update ci.yml

* Add the TCP_WIN.c file

* Add missing function description

* update lexicon and fix some typos

* Removed duplicates, sort and make lower-case

* Update lexicon

* Uncrustify

* Minor Uncrustify changes

* Update lexicon

* removed extra prints (#48)

* Uncrustify

* Fix conflict resolution issues

* Uncrustify

* Add missing briefs and update based on @htibosch's comments.

* Fix spellings and update lexicon

* uncrustify

* Minor fixes

Co-authored-by: root <root@ip-172-31-10-225.us-west-2.compute.internal>
Co-authored-by: Joseph Julicher <jjulicher@mac.com>

Co-authored-by: Hein Tibosch <hein_tibosch@yahoo.es>
Co-authored-by: Hein Tibosch <hein@htibosch.net>
Co-authored-by: David Chalco <59750547+dachalco@users.noreply.github.com>
Co-authored-by: Carl Lundin <53273776+lundinc2@users.noreply.github.com>
Co-authored-by: Joseph Julicher <jjulicher@mac.com>
Co-authored-by: Gary Wicker <14828980+gkwicker@users.noreply.github.com>
Co-authored-by: RolinBert <JonnyKorn@gmx.de>
Co-authored-by: Robert Korn <Robert@jrkorn.de>
Co-authored-by: root <root@ip-172-31-10-225.us-west-2.compute.internal>
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4 participants