CVE-2026-23197

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{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/i2c/busses/i2c-imx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "3f9b508b3eecc00a243edf320bd83834d6a9b482", "status": "affected", "version": "5f5c2d4579ca6836f5604cca979debd68ecfe23f", "versionType": "git"}, {"lessThan": "b126097b0327437048bd045a0e4d273dea2910dd", "status": "affected", "version": "5f5c2d4579ca6836f5604cca979debd68ecfe23f", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/i2c/busses/i2c-imx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"lessThan": "6.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.19", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7156C23F-009E-4D05-838C-A2DA417B5B8D", "versionEndExcluding": "6.18.10", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*", "matchCriteriaId": "17B67AA7-40D6-4AFA-8459-F200F3D7CFD1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*", "matchCriteriaId": "C47E4CC9-C826-4FA9-B014-7FE3D9B318B2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*", "matchCriteriaId": "F71D92C0-C023-48BD-B3B6-70B638EEE298", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*", "matchCriteriaId": "13580667-0A98-40CC-B29F-D12790B91BDB", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*", "matchCriteriaId": "CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*", "matchCriteriaId": "3EF854A1-ABB1-4E93-BE9A-44569EC76C0D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*", "matchCriteriaId": "F5DC0CA6-F0AF-4DDF-A882-3DADB9A886A7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*", "matchCriteriaId": "EB5B7DFC-C36B-45D8-922C-877569FDDF43", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: imx: preserve error state in block data length handler\n\nWhen a block read returns an invalid length, zero or >I2C_SMBUS_BLOCK_MAX,\nthe length handler sets the state to IMX_I2C_STATE_FAILED. However,\ni2c_imx_master_isr() unconditionally overwrites this with\nIMX_I2C_STATE_READ_CONTINUE, causing an endless read loop that overruns\nbuffers and crashes the system.\n\nGuard the state transition to preserve error states set by the length\nhandler."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ni2c: imx: preservar el estado de error en el manejador de longitud de datos de bloque\n\nCuando una lectura de bloque devuelve una longitud no v\u00e1lida, cero o >I2C_SMBUS_BLOCK_MAX, el manejador de longitud establece el estado a IMX_I2C_STATE_FAILED. Sin embargo, i2c_imx_master_isr() sobrescribe incondicionalmente esto con IMX_I2C_STATE_READ_CONTINUE, causando un bucle de lectura infinito que desborda los b\u00faferes y bloquea el sistema.\n\nProteger la transici\u00f3n de estado para preservar los estados de error establecidos por el manejador de longitud."}], "id": "CVE-2026-23197", "lastModified": "2026-06-17T10:21:04.830", "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": "2026-02-14T17:15:57.540", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3f9b508b3eecc00a243edf320bd83834d6a9b482"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b126097b0327437048bd045a0e4d273dea2910dd"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: i2c: imx: preserve error state in block data length handler", "id": "2439896", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2439896"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ni2c: imx: preserve error state in block data length handler\nWhen a block read returns an invalid length, zero or >I2C_SMBUS_BLOCK_MAX,\nthe length handler sets the state to IMX_I2C_STATE_FAILED. However,\ni2c_imx_master_isr() unconditionally overwrites this with\nIMX_I2C_STATE_READ_CONTINUE, causing an endless read loop that overruns\nbuffers and crashes the system.\nGuard the state transition to preserve error states set by the length\nhandler."], "name": "CVE-2026-23197", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "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": "2026-02-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23197\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23197\nhttps://lore.kernel.org/linux-cve-announce/2026021435-CVE-2026-23197-59da@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5f5c2d4579ca6836f5604cca979debd68ecfe23f,3f9b508b3eecc00a243edf320bd83834d6a9b482)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5f5c2d4579ca6836f5604cca979debd68ecfe23f,b126097b0327437048bd045a0e4d273dea2910dd)"}}], "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.13"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.13)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.10,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.19,*]"}}], "product": "linux_kernel", "vendor": "linux"}], "analysis": {"en": {"generated_at": "2026-04-18T18:01:29.832525+00:00", "value": {"mitigation_remediation": ["Apply the latest Linux kernel update that includes the i2c:imx block data length handler fix (commit 3f9b508b3eecc00a243edf320bd83834d6a9b482).", "If your distribution has not yet released a patched kernel, manually apply the upstream patch or rebuild the kernel with the commit merged.", "As a temporary measure, disable the imx I2C driver module or restrict access to the affected I2C devices until a patched kernel is available.", "Verify that the driver implements proper null pointer checks in the block data length handler (CWE\u2011476) to prevent erroneous state transitions."], "summary": {"action": "Apply Patch", "impact": "Denial of Service"}, "threat_synthesis": {"affected_systems": "Vulnerability presence is identified in the Linux kernel versions referenced by the given CPE entries, which include the generic linux_kernel family and the pre\u2011release 6.19rc1 through 6.19rc8 releases. The specific affected kernel branches are not explicitly enumerated in the source data; users should consult the distributor or kernel maintainer to confirm whether the upstream commit (3f9b508b3eecc00a243edf320bd83834d6a9b482) has been incorporated.", "description_and_impact": "The flaw in the i2c:imx driver causes an invalid block read length to set the interface state to a failure condition, but the interrupt handler subsequently overwrites this state unconditionally. The result is an endless read loop that overruns internal buffers and crashes the kernel. The vulnerability therefore leads to a denial of service by causing a kernel panic.", "risk_and_exploitability": "The CVSS score of 5.5 indicates moderate severity, while the EPSS score of less than 1% suggests a very low probability of exploitation in the wild. The vulnerability is not listed in CISA\u2019s KEV catalog. Based on the description, the likely attack vector is local: an adversary would need to interact directly with an I2C device managed by the imx driver or forward a malformed block read request, and remote exploitation would require privileged access to the target hardware. Because the flaw leads only to a crash, the primary risk is denial of service rather than arbitrary code execution."}}}}, "created": "2026-02-16T09:43:36.429909+00:00", "updated": "2026-04-18T18:15:06.569146+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-476"]}