cxgb4: fix memory leak in cxgb4_init_ethtool_filters() error path

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: cxgb4: fix memory leak in cxgb4_init_ethtool_filters() error path In the for loop used to allocate the loc_array and bmap for each port, a memory leak is possible when the allocation for loc_array succeeds, but the allocation for bmap fails. This is because when the control flow goes to the label free_eth_finfo, only the allocations starting from (i-1)th iteration are freed. Fix that by freeing the loc_array in the bmap allocation error path.

References

• https://git.kernel.org/stable/c/e9de08e15aee35b96064960f95997bb6c1209c4b
• https://git.kernel.org/stable/c/118d05b530343cd9322607b9719405ba254a4183
• https://git.kernel.org/stable/c/fa2d7708955e4f8212fd69bab1da604e60cb0b15
• https://git.kernel.org/stable/c/08aa59c0be768596467552c129e9f82166779a67
• https://git.kernel.org/stable/c/dafb6e433ab2333b67be05433dc9c6ccbc7b1284
• https://git.kernel.org/stable/c/76deedea08899885f076aba0bb80bd1276446822
• https://git.kernel.org/stable/c/00ffb3724ce743578163f5ade2884374554ca021