{"api_version":"1","generated_at":"2026-06-03T19:00:44+00:00","cve":"CVE-2026-45849","urls":{"html":"https://cve.report/CVE-2026-45849","api":"https://cve.report/api/cve/CVE-2026-45849.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-45849","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45849"},"summary":{"title":"net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj()\n\nocelot_port_xmit_inj() calls ocelot_can_inject() and\nocelot_port_inject_frame() without holding the injection group lock.\nBoth functions contain lockdep_assert_held() for the injection lock,\nand the correct caller felix_port_deferred_xmit() properly acquires\nthe lock using ocelot_lock_inj_grp() before calling these functions.\n\nAdd ocelot_lock_inj_grp()/ocelot_unlock_inj_grp() around the register\ninjection path to fix the missing lock protection. The FDMA path is not\naffected as it uses its own locking mechanism.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:16:56","updated_at":"2026-05-27 14:48:31"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/026f6513c5880c2c89e38ad66bbec2868f978605","name":"https://git.kernel.org/stable/c/026f6513c5880c2c89e38ad66bbec2868f978605","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/63da961381e0d979459dede713001f8452364477","name":"https://git.kernel.org/stable/c/63da961381e0d979459dede713001f8452364477","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cc1b179f778f98270bdbbb48d183b4b6427ae198","name":"https://git.kernel.org/stable/c/cc1b179f778f98270bdbbb48d183b4b6427ae198","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7ac58d8832802ec89baa7539e13e6d58a88cce04","name":"https://git.kernel.org/stable/c/7ac58d8832802ec89baa7539e13e6d58a88cce04","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0b217a40156f497e09dd20d3f7baec40c785f386","name":"https://git.kernel.org/stable/c/0b217a40156f497e09dd20d3f7baec40c785f386","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/51c32ae7fae14552d79f7139614b77c1bbd57a48","name":"https://git.kernel.org/stable/c/51c32ae7fae14552d79f7139614b77c1bbd57a48","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45849","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45849","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 960ec92774e152b677ccd0006abcab7b9dd814c2 0b217a40156f497e09dd20d3f7baec40c785f386 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e83b49ecb569c9c5fa7cc30e55cf2c15f71f9f39 cc1b179f778f98270bdbbb48d183b4b6427ae198 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c5e12ac3beb0dd3a718296b2d8af5528e9ab728e 7ac58d8832802ec89baa7539e13e6d58a88cce04 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c5e12ac3beb0dd3a718296b2d8af5528e9ab728e 51c32ae7fae14552d79f7139614b77c1bbd57a48 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c5e12ac3beb0dd3a718296b2d8af5528e9ab728e 63da961381e0d979459dede713001f8452364477 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c5e12ac3beb0dd3a718296b2d8af5528e9ab728e 026f6513c5880c2c89e38ad66bbec2868f978605 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 609cd73bf38bbd48f1e695e01802114b01aa8811 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.1.107 6.1.165 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.6.48 6.6.128 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.10.7 6.11 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.11","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.11 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.165 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.128 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.75 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.14 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.4 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"45849","cve":"CVE-2026-45849","epss":"0.000240000","percentile":"0.073320000","score_date":"2026-06-01","updated_at":"2026-06-02 00:05:21"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ethernet/mscc/ocelot_net.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0b217a40156f497e09dd20d3f7baec40c785f386","status":"affected","version":"960ec92774e152b677ccd0006abcab7b9dd814c2","versionType":"git"},{"lessThan":"cc1b179f778f98270bdbbb48d183b4b6427ae198","status":"affected","version":"e83b49ecb569c9c5fa7cc30e55cf2c15f71f9f39","versionType":"git"},{"lessThan":"7ac58d8832802ec89baa7539e13e6d58a88cce04","status":"affected","version":"c5e12ac3beb0dd3a718296b2d8af5528e9ab728e","versionType":"git"},{"lessThan":"51c32ae7fae14552d79f7139614b77c1bbd57a48","status":"affected","version":"c5e12ac3beb0dd3a718296b2d8af5528e9ab728e","versionType":"git"},{"lessThan":"63da961381e0d979459dede713001f8452364477","status":"affected","version":"c5e12ac3beb0dd3a718296b2d8af5528e9ab728e","versionType":"git"},{"lessThan":"026f6513c5880c2c89e38ad66bbec2868f978605","status":"affected","version":"c5e12ac3beb0dd3a718296b2d8af5528e9ab728e","versionType":"git"},{"status":"affected","version":"609cd73bf38bbd48f1e695e01802114b01aa8811","versionType":"git"},{"lessThan":"6.1.165","status":"affected","version":"6.1.107","versionType":"semver"},{"lessThan":"6.6.128","status":"affected","version":"6.6.48","versionType":"semver"},{"lessThan":"6.11","status":"affected","version":"6.10.7","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ethernet/mscc/ocelot_net.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.11"},{"lessThan":"6.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.165","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.128","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.165","versionStartIncluding":"6.1.107","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.128","versionStartIncluding":"6.6.48","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.75","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.14","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.4","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10.7","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj()\n\nocelot_port_xmit_inj() calls ocelot_can_inject() and\nocelot_port_inject_frame() without holding the injection group lock.\nBoth functions contain lockdep_assert_held() for the injection lock,\nand the correct caller felix_port_deferred_xmit() properly acquires\nthe lock using ocelot_lock_inj_grp() before calling these functions.\n\nAdd ocelot_lock_inj_grp()/ocelot_unlock_inj_grp() around the register\ninjection path to fix the missing lock protection. The FDMA path is not\naffected as it uses its own locking mechanism."}],"providerMetadata":{"dateUpdated":"2026-05-27T12:15:15.494Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/0b217a40156f497e09dd20d3f7baec40c785f386"},{"url":"https://git.kernel.org/stable/c/cc1b179f778f98270bdbbb48d183b4b6427ae198"},{"url":"https://git.kernel.org/stable/c/7ac58d8832802ec89baa7539e13e6d58a88cce04"},{"url":"https://git.kernel.org/stable/c/51c32ae7fae14552d79f7139614b77c1bbd57a48"},{"url":"https://git.kernel.org/stable/c/63da961381e0d979459dede713001f8452364477"},{"url":"https://git.kernel.org/stable/c/026f6513c5880c2c89e38ad66bbec2868f978605"}],"title":"net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-45849","datePublished":"2026-05-27T12:15:15.494Z","dateReserved":"2026-05-13T15:03:33.078Z","dateUpdated":"2026-05-27T12:15:15.494Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:16:56","lastModifiedDate":"2026-05-27 14:48:31","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"45849","Ordinal":"1","Title":"net: mscc: ocelot: add missing lock protection in ocelot_port_xm","CVE":"CVE-2026-45849","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"45849","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj()\n\nocelot_port_xmit_inj() calls ocelot_can_inject() and\nocelot_port_inject_frame() without holding the injection group lock.\nBoth functions contain lockdep_assert_held() for the injection lock,\nand the correct caller felix_port_deferred_xmit() properly acquires\nthe lock using ocelot_lock_inj_grp() before calling these functions.\n\nAdd ocelot_lock_inj_grp()/ocelot_unlock_inj_grp() around the register\ninjection path to fix the missing lock protection. The FDMA path is not\naffected as it uses its own locking mechanism.","Type":"Description","Title":"net: mscc: ocelot: add missing lock protection in ocelot_port_xm"}]}}}