{"api_version":"1","generated_at":"2026-07-23T23:25:30+00:00","cve":"CVE-2026-63982","urls":{"html":"https://cve.report/CVE-2026-63982","api":"https://cve.report/api/cve/CVE-2026-63982.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-63982","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63982"},"summary":{"title":"net/sched: Fix ethx:ingress -> ethy:egress -> ethx:ingress mirred loop","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: Fix ethx:ingress -> ethy:egress -> ethx:ingress mirred loop\n\nWhen mirred redirects to ingress (from either ingress or egress) the loop\nstate from sched_mirred_dev array dev is lost because of 1) the packet\ndeferral into the backlog and 2) the fact the sched_mirred_dev array is\ncleared. In such cases, if there was a loop we won't discover it.\n\nHere's a simple test to reproduce:\nip a add dev port0 10.10.10.11/24\n\ntc qdisc add dev port0 clsact\ntc filter add dev port0 egress protocol ip \\\n   prio 10 matchall action mirred ingress redirect dev port1\n\ntc qdisc add dev port1 clsact\ntc filter add dev port1 ingress protocol ip \\\n   prio 10 matchall action mirred egress redirect dev port0\n\nping -c 1 -W0.01 10.10.10.10","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 16:17:17","updated_at":"2026-07-19 16:17:17"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/45ac526a0d5733c3695946bd84ec57f24d8f5e66","name":"https://git.kernel.org/stable/c/45ac526a0d5733c3695946bd84ec57f24d8f5e66","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/db875221ab08d213a83bf30196ae8b64d55a3403","name":"https://git.kernel.org/stable/c/db875221ab08d213a83bf30196ae8b64d55a3403","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/66f4607fe788fc7d81bce0e2f7b3726ed2f71284","name":"https://git.kernel.org/stable/c/66f4607fe788fc7d81bce0e2f7b3726ed2f71284","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-63982","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63982","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 906736728cea480a85803c67fafb1b0e78491922 66f4607fe788fc7d81bce0e2f7b3726ed2f71284 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fe946a751d9b52b7c45ca34899723b314b79b249 45ac526a0d5733c3695946bd84ec57f24d8f5e66 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fe946a751d9b52b7c45ca34899723b314b79b249 db875221ab08d213a83bf30196ae8b64d55a3403 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.12 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"63982","cve":"CVE-2026-63982","epss":"0.001980000","percentile":"0.097890000","score_date":"2026-07-20","updated_at":"2026-07-21 00:13:14"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/sched/act_mirred.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"66f4607fe788fc7d81bce0e2f7b3726ed2f71284","status":"affected","version":"906736728cea480a85803c67fafb1b0e78491922","versionType":"git"},{"lessThan":"45ac526a0d5733c3695946bd84ec57f24d8f5e66","status":"affected","version":"fe946a751d9b52b7c45ca34899723b314b79b249","versionType":"git"},{"lessThan":"db875221ab08d213a83bf30196ae8b64d55a3403","status":"affected","version":"fe946a751d9b52b7c45ca34899723b314b79b249","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/sched/act_mirred.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.12","versionStartIncluding":"6.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: Fix ethx:ingress -> ethy:egress -> ethx:ingress mirred loop\n\nWhen mirred redirects to ingress (from either ingress or egress) the loop\nstate from sched_mirred_dev array dev is lost because of 1) the packet\ndeferral into the backlog and 2) the fact the sched_mirred_dev array is\ncleared. In such cases, if there was a loop we won't discover it.\n\nHere's a simple test to reproduce:\nip a add dev port0 10.10.10.11/24\n\ntc qdisc add dev port0 clsact\ntc filter add dev port0 egress protocol ip \\\n   prio 10 matchall action mirred ingress redirect dev port1\n\ntc qdisc add dev port1 clsact\ntc filter add dev port1 ingress protocol ip \\\n   prio 10 matchall action mirred egress redirect dev port0\n\nping -c 1 -W0.01 10.10.10.10"}],"providerMetadata":{"dateUpdated":"2026-07-19T14:56:05.329Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/66f4607fe788fc7d81bce0e2f7b3726ed2f71284"},{"url":"https://git.kernel.org/stable/c/45ac526a0d5733c3695946bd84ec57f24d8f5e66"},{"url":"https://git.kernel.org/stable/c/db875221ab08d213a83bf30196ae8b64d55a3403"}],"title":"net/sched: Fix ethx:ingress -> ethy:egress -> ethx:ingress mirred loop","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-63982","datePublished":"2026-07-19T14:56:05.329Z","dateReserved":"2026-07-19T07:54:57.025Z","dateUpdated":"2026-07-19T14:56:05.329Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 16:17:17","lastModifiedDate":"2026-07-19 16:17:17","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"63982","Ordinal":"1","Title":"net/sched: Fix ethx:ingress -> ethy:egress -> ethx:ingress mirre","CVE":"CVE-2026-63982","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"63982","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: Fix ethx:ingress -> ethy:egress -> ethx:ingress mirred loop\n\nWhen mirred redirects to ingress (from either ingress or egress) the loop\nstate from sched_mirred_dev array dev is lost because of 1) the packet\ndeferral into the backlog and 2) the fact the sched_mirred_dev array is\ncleared. In such cases, if there was a loop we won't discover it.\n\nHere's a simple test to reproduce:\nip a add dev port0 10.10.10.11/24\n\ntc qdisc add dev port0 clsact\ntc filter add dev port0 egress protocol ip \\\n   prio 10 matchall action mirred ingress redirect dev port1\n\ntc qdisc add dev port1 clsact\ntc filter add dev port1 ingress protocol ip \\\n   prio 10 matchall action mirred egress redirect dev port0\n\nping -c 1 -W0.01 10.10.10.10","Type":"Description","Title":"net/sched: Fix ethx:ingress -> ethy:egress -> ethx:ingress mirre"}]}}}