{"id":"CVE-2025-21790","revision":"0058f3a4cc14404cb0431ad8df264b29","records":[{"revision":"0058f3a4cc14404cb0431ad8df264b29","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-21790","aliases":[],"title":"vxlan: check vxlan_vnigroup_init() return value","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvxlan: check vxlan_vnigroup_init() return value\n\nvxlan_init() must check vxlan_vnigroup_init() success\notherwise a crash happens later, spotted by syzbot.\n\nOops: general protection fault, probably for non-canonical address 0xdffffc000000002c: 0000 [#1] PREEMPT SMP KASAN NOPTI\nKASAN: null-ptr-deref in range [0x0000000000000160-0x0000000000000167]\nCPU: 0 UID: 0 PID: 7313 Comm: syz-executor147 Not tainted 6.14.0-rc1-syzkaller-00276-g69b54314c975 #0\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\n RIP: 0010:vxlan_vnigroup_uninit+0x89/0x500 drivers/net/vxlan/vxlan_vnifilter.c:912\nCode: 00 48 8b 44 24 08 4c 8b b0 98 41 00 00 49 8d 86 60 01 00 00 48 89 c2 48 89 44 24 10 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 4d 04 00 00 49 8b 86 60 01 00 00 48 ba 00 00 00\nRSP: 0018:ffffc9000cc1eea8 EFLAGS: 00010202\nRAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff8672effb\nRDX: 000000000000002c RSI: ffffffff8672ecb9 RDI: ffff8880461b4f18\nRBP: ffff8880461b4ef4 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000001 R11: 0000000000000000 R12: 0000000000020000\nR13: ffff8880461b0d80 R14: 0000000000000000 R15: dffffc0000000000\nFS:  00007fecfa95d6c0(0000) GS:ffff88806a600000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007fecfa95cfb8 CR3: 000000004472c000 CR4: 0000000000352ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n <TASK>\n  vxlan_uninit+0x1ab/0x200 drivers/net/vxlan/vxlan_core.c:2942\n  unregister_netdevice_many_notify+0x12d6/0x1f30 net/core/dev.c:11824\n  unregister_netdevice_many net/core/dev.c:11866 [inline]\n  unregister_netdevice_queue+0x307/0x3f0 net/core/dev.c:11736\n  register_netdevice+0x1829/0x1eb0 net/core/dev.c:10901\n  __vxlan_dev_create+0x7c6/0xa30 drivers/net/vxlan/vxlan_core.c:3981\n  vxlan_newlink+0xd1/0x130 drivers/net/vxlan/vxlan_core.c:4407\n  rtnl_newlink_create net/core/rtnetlink.c:3795 [inline]\n  __rtnl_newlink net/core/rtnetlink.c:3906 [inline]","state":0,"publishedAt":"2025-02-27T02:18:28.375+00:00","modifiedAt":"2026-10-15T01:04:24.596+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/vxlan/vxlan_core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"f9c4bb0b245cee35ef66f75bf409c9573d934cf9\",\n                            \"lessThan\": \"79aea5e55156c87dc570e43fcd8bba01b9d6ab3f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f9c4bb0b245cee35ef66f75bf409c9573d934cf9\",\n                            \"lessThan\": \"a303649b99b64858d62ce7428125d8e71675d2b6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f9c4bb0b245cee35ef66f75bf409c9573d934cf9\",\n                            \"lessThan\": \"e860f847787fbbf0d8dacd638c019c7c3d4a9bd3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f9c4bb0b245cee35ef66f75bf409c9573d934cf9\",\n                            \"lessThan\": \"3215f5aafc49aaa993991633833854694e73b439\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f9c4bb0b245cee35ef66f75bf409c9573d934cf9\",\n                            \"lessThan\": \"5805402dcc56241987bca674a1b4da79a249bab7\",\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/vxlan/vxlan_core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.18\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.18\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.129\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.79\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.16\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.13.4\",\n                            \"lessThanOrEqual\": \"6.13.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.14\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/79aea5e55156c87dc570e43fcd8bba01b9d6ab3f","https://git.kernel.org/stable/c/a303649b99b64858d62ce7428125d8e71675d2b6","https://git.kernel.org/stable/c/e860f847787fbbf0d8dacd638c019c7c3d4a9bd3","https://git.kernel.org/stable/c/3215f5aafc49aaa993991633833854694e73b439","https://git.kernel.org/stable/c/5805402dcc56241987bca674a1b4da79a249bab7"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-21790","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-21790","identifiers":["CVE-2025-21790"]},"retained":false,"historicalAffected":[]}],"coverage":[]}