diff options
| author |   Klement Sekera <ksekera@cisco.com> | 2021-11-03 17:57:28 +0100 |
|---|---|---|
| committer |   Ole Tr�an <otroan@employees.org> | 2021-11-04 13:17:50 +0000 |
| commit | 5a58e7c546239da5c500611d60cf4e7635f138c5 (patch) | |
| tree | 40b3204b7807537ca35d59e439b6245ba012556d /src/vnet/buffer.h | |
| parent | b5a2b05327c1a2bbb23dbb7131cc1be6c0db5e67 (diff) | |
ip: reassembly: avoid reading truncated L4 headers
Check if L4 headers are truncated and if so, set a flag for (future)
consumers instead of reading/writing garbage data.
Type: fix
Fixes: de34c35fc73226943538149fae9dbc5cfbdc6e75
Change-Id: I0b656ec103a11c356b98a6f36cad98536a78d1dc
Signed-off-by: Klement Sekera <ksekera@cisco.com>
Diffstat (limited to 'src/vnet/buffer.h')
| -rw-r--r-- | src/vnet/buffer.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/vnet/buffer.h b/src/vnet/buffer.h index 09abedd5e74..594c6083b84 100644 --- a/src/vnet/buffer.h +++ b/src/vnet/buffer.h @@ -244,7 +244,8 @@ typedef struct u8 save_rewrite_length; u8 ip_proto; /* protocol in ip header */ u8 icmp_type_or_tcp_flags; - u8 is_non_first_fragment; + u8 is_non_first_fragment : 1; + u8 l4_layer_truncated : 7; u32 tcp_seq_number; }; /* full reassembly output variables */ |