{"id":"CVE-2026-98778","title":"binder: fix is_failure flag for superseded transaction cleanup","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix is_failure flag for superseded transaction cleanup\n\nWhen a TF_UPDATE_TXN transaction supersedes a pending async transaction,\nbinder_release_entire_buffer() …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 9864bb4801331daa48514face9d0f4861e4d485b < 60a9f7323ae7318a7cce0d387c318da24f1e8726","Linux >= 9864bb4801331daa48514face9d0f4861e4d485b < 86cdcc87d4ba60aebf94ba3346b3c900c5cd79ff","Linux >= 9864bb4801331daa48514face9d0f4861e4d485b < 1ab671b50714ad8e359cf37eb041d8044319ccdc","Linux >= 9864bb4801331daa48514face9d0f4861e4d485b < 22c135635fdd9816c0ef140d6de7b2e4fdf73e89","Linux 6.0"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T15:48:15.254Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98778","references":[{"url":"https://git.kernel.org/stable/c/60a9f7323ae7318a7cce0d387c318da24f1e8726"},{"url":"https://git.kernel.org/stable/c/86cdcc87d4ba60aebf94ba3346b3c900c5cd79ff"},{"url":"https://git.kernel.org/stable/c/1ab671b50714ad8e359cf37eb041d8044319ccdc"},{"url":"https://git.kernel.org/stable/c/22c135635fdd9816c0ef140d6de7b2e4fdf73e89"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T16:47:32.490Z","slug":"CVE-2026-98778","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix is_failure flag for superseded transaction cleanup\n\nWhen a TF_UPDATE_TXN transaction supersedes a pending async transaction,\nbinder_release_entire_buffer() is called with is_failure=false. Since the\nsuperseded transaction was never delivered, binder_apply_fd_fixups() was\nnever called and no fds were installed in the target process.\n\nWith is_failure=false, the BINDER_TYPE_FDA cleanup handler interprets\nstale buffer contents as installed fd numbers and passes them to\nbinder_deferred_fd_close(), closing unrelated file descriptors.\n\nPass is_failure=true since the transaction was never delivered to the\ntarget, matching the semantics of all other undelivered-transaction\ncleanup paths.\n\n## Affected\n\n- `Linux >= 9864bb4801331daa48514face9d0f4861e4d485b < 60a9f7323ae7318a7cce0d387c318da24f1e8726`\n- `Linux >= 9864bb4801331daa48514face9d0f4861e4d485b < 86cdcc87d4ba60aebf94ba3346b3c900c5cd79ff`\n- `Linux >= 9864bb4801331daa48514face9d0f4861e4d485b < 1ab671b50714ad8e359cf37eb041d8044319ccdc`\n- `Linux >= 9864bb4801331daa48514face9d0f4861e4d485b < 22c135635fdd9816c0ef140d6de7b2e4fdf73e89`\n- `Linux 6.0`\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":[]}