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| author | Arnaldo Carvalho de Melo <[email protected]> | 2022-03-14 22:15:16 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2022-03-14 22:15:16 +0000 |
| commit | 65eab2bc7dab326ee892ec5a4c749470b368b51a (patch) | |
| tree | 341189a55a3d021db7f1c8a8e5b4772b6c782c25 /net/ipv4/tcp.c | |
| parent | perf tools: Set build-id using build-id header on new mmap records (diff) | |
| parent | Linux 5.17-rc8 (diff) | |
| download | kernel-65eab2bc7dab326ee892ec5a4c749470b368b51a.tar.gz kernel-65eab2bc7dab326ee892ec5a4c749470b368b51a.zip | |
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up fixes that went thru perf/urgent.
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 02cb275e5487..28ff2a820f7c 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1684,11 +1684,13 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc, if (!copied) copied = used; break; - } else if (used <= len) { - seq += used; - copied += used; - offset += used; } + if (WARN_ON_ONCE(used > len)) + used = len; + seq += used; + copied += used; + offset += used; + /* If recv_actor drops the lock (e.g. TCP splice * receive) the skb pointer might be invalid when * getting here: tcp_collapse might have deleted it |