CVE-2024-50145 (GCVE-0-2024-50145)
Vulnerability from cvelistv5
Published
2024-11-07 09:31
Modified
2025-10-01 20:27
Summary
In the Linux kernel, the following vulnerability has been resolved: octeon_ep: Add SKB allocation failures handling in __octep_oq_process_rx() build_skb() returns NULL in case of a memory allocation failure so handle it inside __octep_oq_process_rx() to avoid NULL pointer dereference. __octep_oq_process_rx() is called during NAPI polling by the driver. If skb allocation fails, keep on pulling packets out of the Rx DMA queue: we shouldn't break the polling immediately and thus falsely indicate to the octep_napi_poll() that the Rx pressure is going down. As there is no associated skb in this case, don't process the packets and don't push them up the network stack - they are skipped. Helper function is implemented to unmmap/flush all the fragment buffers used by the dropped packet. 'alloc_failures' counter is incremented to mark the skb allocation error in driver statistics. Found by Linux Verification Center (linuxtesting.org) with SVACE.
Impacted products
Vendor Product Version
Linux Linux Version: 37d79d0596062057f588bdbb2ebad5455a43d353
Version: 37d79d0596062057f588bdbb2ebad5455a43d353
Version: 37d79d0596062057f588bdbb2ebad5455a43d353
Version: 37d79d0596062057f588bdbb2ebad5455a43d353
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   Linux Linux Version: 5.19
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Show details on NVD website


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}


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