{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-52948",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-06-09T07:44:35.371Z",
        "datePublished": "2026-06-24T16:26:05.719Z",
        "dateUpdated": "2026-06-29T04:18:39.866Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-29T04:18:39.866Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: dev: prevent integer overflow in I2C_TIMEOUT ioctl\n\nWhile fuzzing with Syzkaller, a persistent `schedule_timeout: wrong\ntimeout value` warning was observed, accompanied by SMBus controller\nstate machine corruption.\n\nThe I2C_TIMEOUT ioctl accepts a user-provided timeout in multiples of\n10 ms. The user argument is checked against INT_MAX, but it is\nsubsequently multiplied by 10 before being passed to msecs_to_jiffies().\n\nA malicious user can pass a large value (e.g., 429496729) that passes\nthe `arg > INT_MAX` check but overflows when multiplied by 10. This\nresults in a truncated 32-bit unsigned value that bypasses the\ninternal `(int)m < 0` check in `msecs_to_jiffies()`.\n\nThe truncated value is then assigned to `client->adapter->timeout`\n(a signed 32-bit int), which is reinterpreted as a negative number.\nWhen passed to wait_for_completion_timeout(), this negative value\nundergoes sign extension to a 64-bit unsigned long, triggering the\n`schedule_timeout` warning and causing premature returns. This leaves\nthe SMBus state machine in an unrecoverable state, constituting a\nlocal Denial of Service (DoS).\n\nFix this by bounding the user argument to `INT_MAX / 10`.\n\n[wsa: move the comment as well]"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/i2c/i2c-dev.c"
                    ],
                    "versions": [
                        {
                            "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
                            "lessThan": "e9ffd5f5050fbb199d270a85614cd27ebed6fbac",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
                            "lessThan": "0b88ecfbc9dc33b4db8836c37b50cf174e6c0691",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
                            "lessThan": "943e318eedbeaeea08ece3f5dd44c982f4ed2ef5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
                            "lessThan": "aa6ef734016912653a909477fb30aeb66c98b3a2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
                            "lessThan": "ff02add34ffd03449b8115904ebe2ec4fed022d4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
                            "lessThan": "ffbcf31f032eb454ebfd29309f51366fe57f4ac4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
                            "lessThan": "4576621dc6577f21a032acfd16c3ad61907a5ea7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d",
                            "lessThan": "617eb7c0961a8dfcfc811844a6396e406b2923ea",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/i2c/i2c-dev.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.29",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.29",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.259",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.210",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.176",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.143",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.94",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.36",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.13",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.29",
                                    "versionEndExcluding": "5.10.259"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/e9ffd5f5050fbb199d270a85614cd27ebed6fbac"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0b88ecfbc9dc33b4db8836c37b50cf174e6c0691"
                },
                {
                    "url": "https://git.kernel.org/stable/c/943e318eedbeaeea08ece3f5dd44c982f4ed2ef5"
                },
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                    "url": "https://git.kernel.org/stable/c/aa6ef734016912653a909477fb30aeb66c98b3a2"
                },
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                    "url": "https://git.kernel.org/stable/c/ff02add34ffd03449b8115904ebe2ec4fed022d4"
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                    "url": "https://git.kernel.org/stable/c/ffbcf31f032eb454ebfd29309f51366fe57f4ac4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4576621dc6577f21a032acfd16c3ad61907a5ea7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/617eb7c0961a8dfcfc811844a6396e406b2923ea"
                }
            ],
            "title": "i2c: dev: prevent integer overflow in I2C_TIMEOUT ioctl",
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