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authorKees Cook <keescook@chromium.org>2022-10-18 02:25:24 -0700
committerTony Nguyen <anthony.l.nguyen@intel.com>2022-11-04 11:09:57 -0700
commit0668716506ca66f90d395f36ccdaebc3e0e84801 (patch)
tree10c16168c5a7b5ee0585f9ee917280bcdae882ae /lib/net_utils.c
parenteac0b6804b74dd77dd33ee4a0639b717481ebf54 (diff)
igb: Do not free q_vector unless new one was allocated
Avoid potential use-after-free condition under memory pressure. If the kzalloc() fails, q_vector will be freed but left in the original adapter->q_vector[v_idx] array position. Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Tony Nguyen <anthony.l.nguyen@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'lib/net_utils.c')
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