{"id":"CVE-2026-98751","title":"tty: abort break signalling on hangup","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ntty: abort break signalling on hangup\n\nThe break ioctls can race with hangup and end up calling into a tty\ndriver for a device that is already gone or powered down.\n\nDr…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= f34d7a5b7010b82fe97da95496b9971435530062 < 3bc82999fb85cecc7eb6ec1755ee7d698aa1e783","Linux >= f34d7a5b7010b82fe97da95496b9971435530062 < 94af6cd832e9b4ce39a8fb59144a8f09ab56fd35","Linux >= f34d7a5b7010b82fe97da95496b9971435530062 < c8ccd3b2013daaf77b98f8a6724fcf4d2c5c52d6","Linux >= f34d7a5b7010b82fe97da95496b9971435530062 < 845a2737e0f5ffe5ca8d38de556012b0c9472cdd","Linux 2.6.26"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T15:47:36.026Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98751","references":[{"url":"https://git.kernel.org/stable/c/3bc82999fb85cecc7eb6ec1755ee7d698aa1e783"},{"url":"https://git.kernel.org/stable/c/94af6cd832e9b4ce39a8fb59144a8f09ab56fd35"},{"url":"https://git.kernel.org/stable/c/c8ccd3b2013daaf77b98f8a6724fcf4d2c5c52d6"},{"url":"https://git.kernel.org/stable/c/845a2737e0f5ffe5ca8d38de556012b0c9472cdd"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T16:47:32.499Z","slug":"CVE-2026-98751","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ntty: abort break signalling on hangup\n\nThe break ioctls can race with hangup and end up calling into a tty\ndriver for a device that is already gone or powered down.\n\nDrivers must handle this race, but TCSBRK and TCSBRKP should still be\naborted to avoid calling back into the driver after a user-controlled\ntimeout (possibly even after the tty has been reopened).\n\nNote that drivers should disable any break state on shutdown so just\nreturn on hangup (calling break_ctl() again is racy and will most likely\nfail for drivers handling the race).\n\n## Affected\n\n- `Linux >= f34d7a5b7010b82fe97da95496b9971435530062 < 3bc82999fb85cecc7eb6ec1755ee7d698aa1e783`\n- `Linux >= f34d7a5b7010b82fe97da95496b9971435530062 < 94af6cd832e9b4ce39a8fb59144a8f09ab56fd35`\n- `Linux >= f34d7a5b7010b82fe97da95496b9971435530062 < c8ccd3b2013daaf77b98f8a6724fcf4d2c5c52d6`\n- `Linux >= f34d7a5b7010b82fe97da95496b9971435530062 < 845a2737e0f5ffe5ca8d38de556012b0c9472cdd`\n- `Linux 2.6.26`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}