CVE-2026-52948

{"id": "CVE-2026-52948", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d", "lessThan": "e9ffd5f5050fbb199d270a85614cd27ebed6fbac", "versionType": "git"}, {"status": "affected", "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d", "lessThan": "0b88ecfbc9dc33b4db8836c37b50cf174e6c0691", "versionType": "git"}, {"status": "affected", "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d", "lessThan": "943e318eedbeaeea08ece3f5dd44c982f4ed2ef5", "versionType": "git"}, {"status": "affected", "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d", "lessThan": "aa6ef734016912653a909477fb30aeb66c98b3a2", "versionType": "git"}, {"status": "affected", "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d", "lessThan": "ff02add34ffd03449b8115904ebe2ec4fed022d4", "versionType": "git"}, {"status": "affected", "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d", "lessThan": "ffbcf31f032eb454ebfd29309f51366fe57f4ac4", "versionType": "git"}, {"status": "affected", "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d", "lessThan": "4576621dc6577f21a032acfd16c3ad61907a5ea7", "versionType": "git"}, {"status": "affected", "version": "cd97f39b7cdf1c8a9c9f52865eec795b7f0c811d", "lessThan": "617eb7c0961a8dfcfc811844a6396e406b2923ea", "versionType": "git"}], "programFiles": ["drivers/i2c/i2c-dev.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2.6.29"}, {"status": "unaffected", "version": "0", "lessThan": "2.6.29", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.259", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.210", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.176", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.143", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.94", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.36", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.13", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/i2c/i2c-dev.c"], "defaultStatus": "affected"}]}], "published": "2026-06-24T17:17:04.900", "references": [{"url": "https://git.kernel.org/stable/c/0b88ecfbc9dc33b4db8836c37b50cf174e6c0691", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/4576621dc6577f21a032acfd16c3ad61907a5ea7", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/617eb7c0961a8dfcfc811844a6396e406b2923ea", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/943e318eedbeaeea08ece3f5dd44c982f4ed2ef5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/aa6ef734016912653a909477fb30aeb66c98b3a2", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e9ffd5f5050fbb199d270a85614cd27ebed6fbac", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ff02add34ffd03449b8115904ebe2ec4fed022d4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ffbcf31f032eb454ebfd29309f51366fe57f4ac4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-190"}]}], "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]"}], "lastModified": "2026-07-14T16:58:13.780", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B54FCF5E-67A8-43C5-A117-1562511E2951", "versionEndExcluding": "5.10.259", "versionStartIncluding": "2.6.29.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5E938CDF-D1C4-43D0-98DC-9E11B6B55801", "versionEndExcluding": "5.15.210", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C4446623-5F2B-4DD8-8666-9FAAC285A757", "versionEndExcluding": "6.1.176", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9062F1CD-CAD6-4EA2-A73F-C06D4A887B8C", "versionEndExcluding": "6.6.143", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "85421C0C-ABDE-4357-971C-67F9087DE1B9", "versionEndExcluding": "6.12.94", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "389025D2-958D-41BD-BD96-70ED1033A9F3", "versionEndExcluding": "6.18.36", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6A64BF9F-3BCA-42FD-98CB-8F03474D2B1E", "versionEndExcluding": "7.0.13", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:2.6.29:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EE6EED15-2E34-47D9-8619-78B03F2E294F"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:2.6.29:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5ADBCB22-86AE-487D-8C52-86DFE6B5E9C4"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:2.6.29:rc8:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF46B929-FA99-4BF7-97FC-0F795CD511A1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}