Description
In the Linux kernel, the following vulnerability has been resolved: mlx5: fix skb leak while fifo resync and push During ptp resync operation SKBs were poped from the fifo but were never freed neither by napi_consume nor by dev_kfree_skb_any. Add call to napi_consume_skb to properly free SKBs. Another leak was happening because mlx5e_skb_fifo_has_room() had an error in the check. Comparing free running counters works well unless C promotes the types to something wider than the counter. In this case counters are u16 but the result of the substraction is promouted to int and it causes wrong result (negative value) of the check when producer have already overlapped but consumer haven't yet. Explicit cast to u16 fixes the issue.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
58a518948f60153e8f6cb8361d2712aa3a1af94a to < 234cffda95e1049f58e8ec136ef105c633f0ed19affected58a518948f60153e8f6cb8361d2712aa3a1af94a to < 68504c66d08c70fb92799722e25a932d311d74fdaffected58a518948f60153e8f6cb8361d2712aa3a1af94a to < e435941b1da1a0be4ff8a7ae425774c76a5ac514affected
Linux Linux
Default version status: affected
6.0affected0 to < 6.0unaffected6.1.18 to ≤ 6.1.*unaffected6.2.5 to ≤ 6.2.*unaffected6.3 to ≤ *unaffected