bpf/xskmap: Return ERR_PTR for failure case instead of NULL.

When kzalloc() failed, NULL was returned to the caller, which
tested the pointer with IS_ERR(), which didn't match, so the
pointer was used later, resulting in a NULL dereference.

Return ERR_PTR(-ENOMEM) instead of NULL.

Reported-by: [email protected]
Fixes: 0402acd683c6 ("xsk: remove AF_XDP socket from map when the socket is released")
Signed-off-by: Jonathan Lemon <[email protected]>
Acked-by: Björn Töpel <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>

0 files changed, 0 insertions, 0 deletions