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Diffstat (limited to 'net/smc/smc_tx.c')

0 files changed, 0 insertions, 0 deletions

inite loop in tcp_splice_read()

Splicing from TCP socket is vulnerable when a packet with URG flag is received and stored into receive queue. __tcp_splice_read() returns 0, and sk_wait_data() immediately returns since there is the problematic skb in queue. This is a nice way to burn cpu (aka infinite loop) and trigger soft lockups. Again, this gem was found by syzkaller tool. Fixes: 9c55e01c0cc8 ("[TCP]: Splice receive support.") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Dmitry Vyukov <dvyukov@google.com> Cc: Willy Tarreau <w@1wt.eu> Signed-off-by: David S. Miller <davem@davemloft.net>

Diffstat (limited to 'net')

-rw-r--r--

net/ipv4/tcp.c

1 files changed, 6 insertions, 0 deletions


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