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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 /include | |
| 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 'include')
| -rw-r--r-- | include/netlink/errno.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/netlink/errno.h b/include/netlink/errno.h index f8b5130..35710cf 100644 --- a/include/netlink/errno.h +++ b/include/netlink/errno.h @@ -50,8 +50,9 @@ extern "C" { #define NLE_NODEV 31 #define NLE_IMMUTABLE 32 #define NLE_DUMP_INTR 33 +#define NLE_ATTRSIZE 34 -#define NLE_MAX NLE_DUMP_INTR +#define NLE_MAX NLE_ATTRSIZE extern const char * nl_geterror(int); extern void nl_perror(int, const char *); |