Merge branch 'mptcp-prevent-tcp_push-crash-and-selftest-temp-file-buildup'

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Mat Martineau says:

====================
mptcp: Prevent tcp_push() crash and selftest temp file buildup

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.
====================

Link: https://lore.kernel.org/r/20210901171537.121255-1-mathew.j.martineau@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Jakub Kicinski 2021-09-01 10:55:51 -07:00

parent 780aa1209f bfd862a7e9

commit 36e784a60b

2 changed files with 37 additions and 43 deletions

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76

net/mptcp/protocol.c

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4

tools/testing/selftests/net/mptcp/simult_flows.sh

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