{"id":"CVE-2025-38146","revision":null,"records":[{"revision":"88f1d4f307bf446eb0cc2a140df3995d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-38146","aliases":[],"title":"net: openvswitch: Fix the dead loop of MPLS parse","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: Fix the dead loop of MPLS parse\n\nThe unexpected MPLS packet may not end with the bottom label stack.\nWhen there are many stacks, The label count value has wrapped around.\nA dead loop occurs, soft lockup/CPU stuck finally.\n\nstack backtrace:\nUBSAN: array-index-out-of-bounds in /build/linux-0Pa0xK/linux-5.15.0/net/openvswitch/flow.c:662:26\nindex -1 is out of range for type '__be32 [3]'\nCPU: 34 PID: 0 Comm: swapper/34 Kdump: loaded Tainted: G OE 5.15.0-121-generic #131-Ubuntu\nHardware name: Dell Inc. PowerEdge C6420/0JP9TF, BIOS 2.12.2 07/14/2021\nCall Trace:\n \n show_stack+0x52/0x5c\n dump_stack_lvl+0x4a/0x63\n dump_stack+0x10/0x16\n ubsan_epilogue+0x9/0x36\n __ubsan_handle_out_of_bounds.cold+0x44/0x49\n key_extract_l3l4+0x82a/0x840 [openvswitch]\n ? kfree_skbmem+0x52/0xa0\n key_extract+0x9c/0x2b0 [openvswitch]\n ovs_flow_key_extract+0x124/0x350 [openvswitch]\n ovs_vport_receive+0x61/0xd0 [openvswitch]\n ? kernel_init_free_pages.part.0+0x4a/0x70\n ? get_page_from_freelist+0x353/0x540\n netdev_port_receive+0xc4/0x180 [openvswitch]\n ? netdev_port_receive+0x180/0x180 [openvswitch]\n netdev_frame_hook+0x1f/0x40 [openvswitch]\n __netif_receive_skb_core.constprop.0+0x23a/0xf00\n __netif_receive_skb_list_core+0xfa/0x240\n netif_receive_skb_list_internal+0x18e/0x2a0\n napi_complete_done+0x7a/0x1c0\n bnxt_poll+0x155/0x1c0 [bnxt_en]\n __napi_poll+0x30/0x180\n net_rx_action+0x126/0x280\n ? bnxt_msix+0x67/0x80 [bnxt_en]\n handle_softirqs+0xda/0x2d0\n irq_exit_rcu+0x96/0xc0\n common_interrupt+0x8e/0xa0\n ","state":0,"publishedAt":"2025-07-03T08:35:52.23+00:00","modifiedAt":"2026-10-15T21:52:09.59+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 \"net/openvswitch/flow.c\"\n ],\n \"versions\": [\n {\n \"version\": \"fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3\",\n \"lessThan\": \"4b9a086eedc1fddae632310386098c12155e3d0a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3\",\n \"lessThan\": \"ad17eb86d042d72a59fd184ad1adf34f5eb36843\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3\",\n \"lessThan\": \"f26fe7c3002516dd3c288f1012786df31f4d89e0\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3\",\n \"lessThan\": \"8ebcd311b4866ab911d1445ead08690e67f0c488\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3\",\n \"lessThan\": \"69541e58323ec3e3904e1fa87a6213961b1f52f4\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3\",\n \"lessThan\": \"3c1906a3d50cb94fd0a10e97a1c0a40c0f033cb7\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3\",\n \"lessThan\": \"0bdc924bfb319fb10d1113cbf091fc26fb7b1f99\",\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 \"net/openvswitch/flow.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.5\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.5\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.239\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.186\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.142\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.94\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.34\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.15.3\",\n \"lessThanOrEqual\": \"6.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.16\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H","score":9.4,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/4b9a086eedc1fddae632310386098c12155e3d0a","https://git.kernel.org/stable/c/ad17eb86d042d72a59fd184ad1adf34f5eb36843","https://git.kernel.org/stable/c/f26fe7c3002516dd3c288f1012786df31f4d89e0","https://git.kernel.org/stable/c/8ebcd311b4866ab911d1445ead08690e67f0c488","https://git.kernel.org/stable/c/69541e58323ec3e3904e1fa87a6213961b1f52f4","https://git.kernel.org/stable/c/3c1906a3d50cb94fd0a10e97a1c0a40c0f033cb7","https://git.kernel.org/stable/c/0bdc924bfb319fb10d1113cbf091fc26fb7b1f99"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-38146","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-38146","identifiers":["CVE-2025-38146"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-469e0902b40147e98a6498cf72d41be8","complete":true,"records":13655,"lastAttemptAt":"2026-11-09T12:14:17.3321495+00:00","lastSuccessAt":"2026-11-09T12:14:17.327+00:00","error":null,"lastVerifiedAt":"2026-11-09T12:14:17.327+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13707,"expectedIdentifiers":13707,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-09T12:02:21.9910047+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T12:02:21.9910047+00:00","lastSuccessAt":"2026-11-09T12:02:22.1781502+00:00","error":null,"lastVerifiedAt":"2026-11-09T12:02:22.1781508+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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