CVE-2026-45849

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45849", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.078Z", "datePublished": "2026-05-27T12:15:15.494Z", "dateUpdated": "2026-05-27T12:15:15.494Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-27T12:15:15.494Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/mscc/ocelot_net.c"], "versions": [{"version": "960ec92774e152b677ccd0006abcab7b9dd814c2", "lessThan": "0b217a40156f497e09dd20d3f7baec40c785f386", "status": "affected", "versionType": "git"}, {"version": "e83b49ecb569c9c5fa7cc30e55cf2c15f71f9f39", "lessThan": "cc1b179f778f98270bdbbb48d183b4b6427ae198", "status": "affected", "versionType": "git"}, {"version": "c5e12ac3beb0dd3a718296b2d8af5528e9ab728e", "lessThan": "7ac58d8832802ec89baa7539e13e6d58a88cce04", "status": "affected", "versionType": "git"}, {"version": "c5e12ac3beb0dd3a718296b2d8af5528e9ab728e", "lessThan": "51c32ae7fae14552d79f7139614b77c1bbd57a48", "status": "affected", "versionType": "git"}, {"version": "c5e12ac3beb0dd3a718296b2d8af5528e9ab728e", "lessThan": "63da961381e0d979459dede713001f8452364477", "status": "affected", "versionType": "git"}, {"version": "c5e12ac3beb0dd3a718296b2d8af5528e9ab728e", "lessThan": "026f6513c5880c2c89e38ad66bbec2868f978605", "status": "affected", "versionType": "git"}, {"version": "609cd73bf38bbd48f1e695e01802114b01aa8811", "status": "affected", "versionType": "git"}, {"version": "6.1.107", "lessThan": "6.1.165", "status": "affected", "versionType": "semver"}, {"version": "6.6.48", "lessThan": "6.6.128", "status": "affected", "versionType": "semver"}, {"version": "6.10.7", "lessThan": "6.11", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/mscc/ocelot_net.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.165", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.128", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.14", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.4", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.107", "versionEndExcluding": "6.1.165"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.48", "versionEndExcluding": "6.6.128"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.0"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10.7"}]}]}], "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"}}}}

{}

{"affected": [{"affectedData": [{"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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C701106A-D272-47C9-AD8C-9A2784DF8E19", "versionEndExcluding": "6.1.165", "versionStartIncluding": "6.1.107", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5639C7BA-8365-4A4E-A051-DCA6511C0244", "versionEndExcluding": "6.6.128", "versionStartIncluding": "6.6.48", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "48B1FCEA-70A6-45BD-A39B-9184638703FB", "versionEndExcluding": "6.11", "versionStartIncluding": "6.10.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "1C462C6C-BC40-4018-A8C4-C32BDE9791C9", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.11.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BF463CB7-1F58-4607-B847-77ED23E4B9B7", "versionEndExcluding": "6.18.14", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "672A3E79-EC03-479D-8503-361DFBDC8092", "versionEndExcluding": "6.19.4", "versionStartIncluding": "6.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:-:*:*:*:*:*:*", "matchCriteriaId": "4770BA57-3F3F-493B-8608-EC3B25254949", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*", "matchCriteriaId": "B8383ABF-1457-401F-9B61-EE50F4C61F4F", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:*", "matchCriteriaId": "B77A9280-37E6-49AD-B559-5B23A3B1DC3D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc7:*:*:*:*:*:*", "matchCriteriaId": "DE5298B3-04B4-4F3E-B186-01A58B5C75A6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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."}], "id": "CVE-2026-45849", "lastModified": "2026-06-25T21:03:35.277", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-05-27T14:16:56.850", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/026f6513c5880c2c89e38ad66bbec2868f978605"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0b217a40156f497e09dd20d3f7baec40c785f386"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/51c32ae7fae14552d79f7139614b77c1bbd57a48"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/63da961381e0d979459dede713001f8452364477"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7ac58d8832802ec89baa7539e13e6d58a88cce04"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cc1b179f778f98270bdbbb48d183b4b6427ae198"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj()", "id": "2482040", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482040"}, "csaw": false, "cwe": "CWE-414", "details": ["A flaw was found in the Linux kernel's network component, specifically within the `mscc: ocelot` driver. The system failed to properly secure access to shared resources during network packet injection, leading to a missing lock protection vulnerability. This oversight could allow a local attacker to exploit race conditions, potentially causing system instability or a denial of service (DoS)."], "name": "CVE-2026-45849", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-45849\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-45849\nhttps://lore.kernel.org/linux-cve-announce/2026052708-CVE-2026-45849-fad7@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[960ec92774e152b677ccd0006abcab7b9dd814c2,0b217a40156f497e09dd20d3f7baec40c785f386)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e83b49ecb569c9c5fa7cc30e55cf2c15f71f9f39,cc1b179f778f98270bdbbb48d183b4b6427ae198)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c5e12ac3beb0dd3a718296b2d8af5528e9ab728e,7ac58d8832802ec89baa7539e13e6d58a88cce04)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c5e12ac3beb0dd3a718296b2d8af5528e9ab728e,51c32ae7fae14552d79f7139614b77c1bbd57a48)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c5e12ac3beb0dd3a718296b2d8af5528e9ab728e,63da961381e0d979459dede713001f8452364477)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c5e12ac3beb0dd3a718296b2d8af5528e9ab728e,026f6513c5880c2c89e38ad66bbec2868f978605)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "609cd73bf38bbd48f1e695e01802114b01aa8811"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.1.107,6.1.165)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.48,6.6.128)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.10.7,6.11)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.165,6.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.128,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.75,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.14,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.19.4,6.19.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-27T16:45:37.811728+00:00", "updated": "2026-08-14T02:30:17.867739+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}