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| author | Przemyslaw Szczerbik <przemekszczerbik@gmail.com> | 2016-05-30 21:26:00 (GMT) |
|---|---|---|
| committer | Thomas Haller <thaller@redhat.com> | 2016-06-24 17:32:25 (GMT) |
| commit | 424b3b6d0ddb809869d5ba87fa927ca086f8e5f8 (patch) | |
| tree | 19c7b104fb49d77d8376d06ac10d3ca724fa55dd /lib/error.c | |
| parent | 838f43faee39bb01e10036971bcadb0fac92ec6e (diff) | |
| download | libnl-424b3b6d0ddb809869d5ba87fa927ca086f8e5f8.zip libnl-424b3b6d0ddb809869d5ba87fa927ca086f8e5f8.tar.gz libnl-424b3b6d0ddb809869d5ba87fa927ca086f8e5f8.tar.bz2 | |
lib: return error on Netlink attribute length overflow
Netlink attribute length is defined as u16. It's possible to exceed nla_len when
creating nested attributes. Storing incorrect length due to overflow will cause
a reader to read only a part of nested attribute or skip it entirely.
As a solution cancel the addition of a nested attribute when nla_len size is
exceeded.
Signed-off-by: Przemyslaw Szczerbik <przemek.szczerbik@gmail.com>
Signed-off-by: Thomas Haller <thaller@redhat.com>
http://lists.infradead.org/pipermail/libnl/2016-May/002131.html
Diffstat (limited to 'lib/error.c')
| -rw-r--r-- | lib/error.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/error.c b/lib/error.c index f30b9a5..7fbd389 100644 --- a/lib/error.c +++ b/lib/error.c @@ -47,6 +47,7 @@ static const char *errmsg[NLE_MAX+1] = { [NLE_NODEV] = "No such device", [NLE_IMMUTABLE] = "Immutable attribute", [NLE_DUMP_INTR] = "Dump inconsistency detected, interrupted", +[NLE_ATTRSIZE] = "Attribute max length exceeded", }; /** |