Re: [PATCH net v2 0/2] mptcp: Prevent tcp_push() crash and selftest temp file buildup

Hi David, Jakub,

On 31/08/2021 19:19, Mat Martineau wrote:

These are two fixes for the net tree, addressing separate issues.

Patch 1 addresses a divide-by-zero crash seen in syzkaller and also
reported by a user on the netdev list. This changes MPTCP code so
tcp_push() cannot be called with an invalid (0) mss_now value.

Patch 2 fixes a selftest temp file cleanup issue that consumes excessive
disk space when running repeated tests.


v2: Make suggested changes to lockdep check and indentation in patch 1

We recently noticed this series has been marked as "Not Applicable" on
Patchwork.

It looks like we can apply these patches:

  $ git checkout netdev-net/master # 780aa1209f88
  $ git-pw series apply 539963
  Applying: mptcp: fix possible divide by zero
  Using index info to reconstruct a base tree...
  M       net/mptcp/protocol.c

  Falling back to patching base and 3-way merge...
  Auto-merging net/mptcp/protocol.c

  Applying: selftests: mptcp: clean tmp files in simult_flows

Git auto-resolves conflicts. Is it why it is considered as "Not
Applicable" or did we miss something else?

Do we just need to resend these patches after a rebase?

Thank you for maintaining net!

Cheers,
Matt
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