{"cve":{"cve_id":"CVE-2026-52948","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":null,"epss_percentile":null,"epss_as_of":null,"description":"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]","published_at":"2026-06-24T16:26:05.719000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["https://git.kernel.org/stable/c/e9ffd5f5050fbb199d270a85614cd27ebed6fbac","https://git.kernel.org/stable/c/0b88ecfbc9dc33b4db8836c37b50cf174e6c0691","https://git.kernel.org/stable/c/943e318eedbeaeea08ece3f5dd44c982f4ed2ef5","https://git.kernel.org/stable/c/aa6ef734016912653a909477fb30aeb66c98b3a2","https://git.kernel.org/stable/c/ff02add34ffd03449b8115904ebe2ec4fed022d4","https://git.kernel.org/stable/c/ffbcf31f032eb454ebfd29309f51366fe57f4ac4","https://git.kernel.org/stable/c/4576621dc6577f21a032acfd16c3ad61907a5ea7","https://git.kernel.org/stable/c/617eb7c0961a8dfcfc811844a6396e406b2923ea"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-28T17:55:22.518073Z","updated_at":"2026-06-28T23:30:49.890169Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","version_start_inclusive":true,"version_end":"e9ffd5f5050fbb199d270a85614cd27ebed6fbac","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:1da177e4c3f41524e886b7f1b8a0c1fc7321cac2:e9ffd5f5050fbb199d270a85614cd27ebed6fbac"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","version_start_inclusive":true,"version_end":"0b88ecfbc9dc33b4db8836c37b50cf174e6c0691","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:1da177e4c3f41524e886b7f1b8a0c1fc7321cac2:0b88ecfbc9dc33b4db8836c37b50cf174e6c0691"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","version_start_inclusive":true,"version_end":"943e318eedbeaeea08ece3f5dd44c982f4ed2ef5","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:1da177e4c3f41524e886b7f1b8a0c1fc7321cac2:943e318eedbeaeea08ece3f5dd44c982f4ed2ef5"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","version_start_inclusive":true,"version_end":"aa6ef734016912653a909477fb30aeb66c98b3a2","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:1da177e4c3f41524e886b7f1b8a0c1fc7321cac2:aa6ef734016912653a909477fb30aeb66c98b3a2"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","version_start_inclusive":true,"version_end":"ff02add34ffd03449b8115904ebe2ec4fed022d4","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:1da177e4c3f41524e886b7f1b8a0c1fc7321cac2:ff02add34ffd03449b8115904ebe2ec4fed022d4"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","version_start_inclusive":true,"version_end":"ffbcf31f032eb454ebfd29309f51366fe57f4ac4","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:1da177e4c3f41524e886b7f1b8a0c1fc7321cac2:ffbcf31f032eb454ebfd29309f51366fe57f4ac4"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","version_start_inclusive":true,"version_end":"4576621dc6577f21a032acfd16c3ad61907a5ea7","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:1da177e4c3f41524e886b7f1b8a0c1fc7321cac2:4576621dc6577f21a032acfd16c3ad61907a5ea7"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","version_start_inclusive":true,"version_end":"617eb7c0961a8dfcfc811844a6396e406b2923ea","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:1da177e4c3f41524e886b7f1b8a0c1fc7321cac2:617eb7c0961a8dfcfc811844a6396e406b2923ea"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"5.10.259","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:5.10.259"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"5.15.210","version_end_inclusive":false,"cpe23_uri":"cve5:linu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