Description
In the Linux kernel, the following vulnerability has been resolved: net: stmmac: Correctly handle Rx checksum offload errors The stmmac_rx function would previously set skb->ip_summed to CHECKSUM_UNNECESSARY if hardware checksum offload (CoE) was enabled and the packet was of a known IP ethertype. However, this logic failed to check if the hardware had actually reported a checksum error. The hardware status, indicating a header or payload checksum failure, was being ignored at this stage. This could cause corrupt packets to be passed up the network stack as valid. This patch corrects the logic by checking the `csum_none` status flag, which is set when the hardware reports a checksum error. If this flag is set, skb->ip_summed is now correctly set to CHECKSUM_NONE, ensuring the kernel's network stack will perform its own validation and properly handle the corrupt packet.
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
3c20f72f9108b2fcf30ec63d8a4203736c01ccd0 to < 63fbe0e6413279d5ea5842e2423e351ded547683affected3c20f72f9108b2fcf30ec63d8a4203736c01ccd0 to < 719fcdf29051f7471d5d433475af76219019d33daffected3c20f72f9108b2fcf30ec63d8a4203736c01ccd0 to < 1aa319e0f12d2d761a31556b82a5852c98eb0beaaffected3c20f72f9108b2fcf30ec63d8a4203736c01ccd0 to < ee0aace5f844ef59335148875d05bec8764e71e8affected
Linux Linux
Default version status: affected
3.2affected0 to < 3.2unaffected6.6.117 to ≤ 6.6.*unaffected6.12.58 to ≤ 6.12.*unaffected6.17.8 to ≤ 6.17.*unaffected6.18 to ≤ *unaffected