{"id":"CVE-2026-45847","summary":"net: remove WARN_ON_ONCE when accessing forward path array","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: remove WARN_ON_ONCE when accessing forward path array\n\nAlthough unlikely, recent support for IPIP tunnels increases chances of\nreaching this WARN_ON_ONCE if userspace manages to build a sufficiently\nlong forward path.\n\nRemove it.","modified":"2026-06-27T11:55:13.703227172Z","published":"2026-05-27T12:15:07.344Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45847.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/008e7a7c293b30bc43e4368dac6ea3808b75a572"},{"type":"WEB","url":"https://git.kernel.org/stable/c/50422613185d505201167e8bdd2f2700790d5db6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/548244c2f542aa0ad49453e9306e715a3877bc44"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9464ca7a6e56ad1ebf48b2ad5c16871edfad10c6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/959ea349c7e2d4edf07b6838ca7e59345fe61a08"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a78d055ba7c31103ad02f8eceb0c452e154d2660"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dcf9b3c90e5560339649d088836529883fb509f3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45847.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45847"},{"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":"ddb94eafab8b597b05904c8277194ea2d6357fa9"},{"fixed":"548244c2f542aa0ad49453e9306e715a3877bc44"},{"fixed":"dcf9b3c90e5560339649d088836529883fb509f3"},{"fixed":"9464ca7a6e56ad1ebf48b2ad5c16871edfad10c6"},{"fixed":"959ea349c7e2d4edf07b6838ca7e59345fe61a08"},{"fixed":"50422613185d505201167e8bdd2f2700790d5db6"},{"fixed":"a78d055ba7c31103ad02f8eceb0c452e154d2660"},{"fixed":"008e7a7c293b30bc43e4368dac6ea3808b75a572"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-45847.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.13.0"},{"fixed":"5.15.202"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.165"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.128"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.75"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.14"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-45847.json"}}],"schema_version":"1.7.5"}