CVE-2026-53058

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{}

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We need the connector to\nbe set before that. Unlike in legacy cases with flag\n!DRM_BRIDGE_ATTACH_NO_CONNECTOR, we do not have connector initialised\nin bridge_attach(), so add the mhdp->connector_ptr in device structure\nto handle both cases with DRM_BRIDGE_ATTACH_NO_CONNECTOR and\n!DRM_BRIDGE_ATTACH_NO_CONNECTOR, set it in atomic_enable() earlier to\navoid possible NULL pointer dereference in recovery paths like\nmodeset_retry_fn() with the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag set."}], "id": "CVE-2026-53058", "lastModified": "2026-07-21T17:29:42.990", "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": "2026-06-24T17:17:18.170", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1af3b42e08a957e53bab8e1897393fe0a27d9fbf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/43d6508ddbf9fb974fbc359a033154f78c9d4c8b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5302015daf26ef6b48e067f2b86c9482ac19e015"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a3611554e599d1a24b45fd8415bacb72ce861e4b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cf2ac2cac8b319f89b3a3851ca0c5ffb6a549575"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: drm/bridge: cadence: cdns-mhdp8546-core: Set the mhdp connector earlier in atomic_enable()", "id": "2492451", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492451"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-824", "details": ["A flaw was found in the `drm/bridge: cadence: cdns-mhdp8546-core` component of the Linux kernel. This vulnerability allows for a NULL pointer dereference during error handling within the `atomic_enable()` function. If `cdns_mhdp_link_up()` or `cdns_mhdp_reg_read()` encounter errors, a subsequent attempt to access a mutex in `cdns_mhdp_modeset_retry_fn()` can result in a NULL pointer dereference. This can lead to a system crash, causing a denial of service (DoS)."], "name": "CVE-2026-53058", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53058\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53058\nhttps://lore.kernel.org/linux-cve-announce/2026062401-CVE-2026-53058-d89c@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c932ced6b58524eeb948ff252f6512cd6bcb9d9f,5302015daf26ef6b48e067f2b86c9482ac19e015)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c932ced6b58524eeb948ff252f6512cd6bcb9d9f,a3611554e599d1a24b45fd8415bacb72ce861e4b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c932ced6b58524eeb948ff252f6512cd6bcb9d9f,cf2ac2cac8b319f89b3a3851ca0c5ffb6a549575)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c932ced6b58524eeb948ff252f6512cd6bcb9d9f,1af3b42e08a957e53bab8e1897393fe0a27d9fbf)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c932ced6b58524eeb948ff252f6512cd6bcb9d9f,43d6508ddbf9fb974fbc359a033154f78c9d4c8b)"}}], "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": "generic", "value": "6.6"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.6)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.141,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.91,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.33,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.10,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "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": "2026-06-24T21:00:11.771680+00:00", "updated": "2026-08-13T15:30:04.397352+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}