{"id":"CVE-2023-54156","revision":"35e578701f3e45db9aefa0e69d40c83d","records":[{"revision":"35e578701f3e45db9aefa0e69d40c83d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2023-54156","aliases":[],"title":"sfc: fix crash when reading stats while NIC is resetting","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsfc: fix crash when reading stats while NIC is resetting\n\nefx_net_stats() (.ndo_get_stats64) can be called during an ethtool\n selftest, during which time nic_data->mc_stats is NULL as the NIC has\n been fini'd.  In this case do not attempt to fetch the latest stats\n from the hardware, else we will crash on a NULL dereference:\n    BUG: kernel NULL pointer dereference, address: 0000000000000038\n    RIP efx_nic_update_stats\n    abridged calltrace:\n    efx_ef10_update_stats_pf\n    efx_net_stats\n    dev_get_stats\n    dev_seq_printf_stats\nSkipping the read is safe, we will simply give out stale stats.\nTo ensure that the free in efx_ef10_fini_nic() does not race against\n efx_ef10_update_stats_pf(), which could cause a TOCTTOU bug, take the\n efx->stats_lock in fini_nic (it is already held across update_stats).","state":0,"publishedAt":"2025-12-24T13:07:06.043+00:00","modifiedAt":"2026-10-15T21:41:40.463+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/sfc/ef10.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"d3142c193dca9a2f6878f4128ce1aaf221bb3f99\",\n                            \"lessThan\": \"cb1aa7cc562cab6a87ea33574c8c65f2d2fd7aeb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d3142c193dca9a2f6878f4128ce1aaf221bb3f99\",\n                            \"lessThan\": \"91f4ef204e731565afdc6c2a7fcf509a3fd6fd67\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d3142c193dca9a2f6878f4128ce1aaf221bb3f99\",\n                            \"lessThan\": \"446f5567934331923d0aec4ce045e4ecb0174aae\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d3142c193dca9a2f6878f4128ce1aaf221bb3f99\",\n                            \"lessThan\": \"470152d76b3ed107d172ea46acc4bfa941f20b4b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d3142c193dca9a2f6878f4128ce1aaf221bb3f99\",\n                            \"lessThan\": \"aba32b4c58112960c0c708703ca6b44dc8944082\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d3142c193dca9a2f6878f4128ce1aaf221bb3f99\",\n                            \"lessThan\": \"d1b355438b8325a486f087e506d412c4e852f37b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/sfc/ef10.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.9\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.9\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.188\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.121\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.39\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.3.13\",\n                            \"lessThanOrEqual\": \"6.3.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.4.4\",\n                            \"lessThanOrEqual\": \"6.4.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.5\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/cb1aa7cc562cab6a87ea33574c8c65f2d2fd7aeb","https://git.kernel.org/stable/c/91f4ef204e731565afdc6c2a7fcf509a3fd6fd67","https://git.kernel.org/stable/c/446f5567934331923d0aec4ce045e4ecb0174aae","https://git.kernel.org/stable/c/470152d76b3ed107d172ea46acc4bfa941f20b4b","https://git.kernel.org/stable/c/aba32b4c58112960c0c708703ca6b44dc8944082","https://git.kernel.org/stable/c/d1b355438b8325a486f087e506d412c4e852f37b"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-54156","license":"CVE Program Terms of Use","key":"cve-program:CVE-2023-54156","identifiers":["CVE-2023-54156"]},"retained":false,"historicalAffected":[]}],"coverage":[]}