{"id":"CVE-2024-50145","summary":"octeon_ep: Add SKB allocation failures handling in __octep_oq_process_rx()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nocteon_ep: Add SKB allocation failures handling in __octep_oq_process_rx()\n\nbuild_skb() returns NULL in case of a memory allocation failure so handle\nit inside __octep_oq_process_rx() to avoid NULL pointer dereference.\n\n__octep_oq_process_rx() is called during NAPI polling by the driver. If\nskb allocation fails, keep on pulling packets out of the Rx DMA queue: we\nshouldn't break the polling immediately and thus falsely indicate to the\noctep_napi_poll() that the Rx pressure is going down. As there is no\nassociated skb in this case, don't process the packets and don't push them\nup the network stack - they are skipped.\n\nHelper function is implemented to unmmap/flush all the fragment buffers\nused by the dropped packet. 'alloc_failures' counter is incremented to\nmark the skb allocation error in driver statistics.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.","modified":"2026-04-16T00:07:11.943527851Z","published":"2024-11-07T09:31:22.202Z","related":["SUSE-SU-2024:4314-1","SUSE-SU-2024:4316-1","SUSE-SU-2024:4318-1","SUSE-SU-2024:4387-1","SUSE-SU-2025:20163-1","SUSE-SU-2025:20164-1","SUSE-SU-2025:20246-1","SUSE-SU-2025:20247-1","USN-7276-1","USN-7277-1","openSUSE-SU-2024:14500-1","openSUSE-SU-2025:14705-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50145.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/09ce491112bbf0b866e2638d3e961c1c73d1f00b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2dedcb6f99f4c1a11944e7cc35dbeb9b18a5cbac"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c2d2dc4f88bb3cfc4f3cc320fd3ff51b0ae5b0ea"},{"type":"WEB","url":"https://git.kernel.org/stable/c/eb592008f79be52ccef88cd9a5249b3fc0367278"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50145.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-50145"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"37d79d0596062057f588bdbb2ebad5455a43d353"},{"fixed":"09ce491112bbf0b866e2638d3e961c1c73d1f00b"},{"fixed":"c2d2dc4f88bb3cfc4f3cc320fd3ff51b0ae5b0ea"},{"fixed":"2dedcb6f99f4c1a11944e7cc35dbeb9b18a5cbac"},{"fixed":"eb592008f79be52ccef88cd9a5249b3fc0367278"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50145.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}