{"id":"CVE-2026-98778","state":"PUBLISHED","title":"binder: fix is_failure flag for superseded transaction cleanup","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix is_failure flag for superseded transaction cleanup\n\nWhen a TF_UPDATE_TXN transaction supersedes a pending async transaction,\nbinder_release_entire_buffer() is called with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.","publishedAt":"2026-10-18T15:48:15.254Z","updatedAt":"2026-10-30T12:39:45.207Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"9864bb4801331daa48514face9d0f4861e4d485b","status":"affected","lessThan":"f4c072e544b8c15e6b9157208761db6fa4fe95a1","versionType":"git"},{"version":"9864bb4801331daa48514face9d0f4861e4d485b","status":"affected","lessThan":"e9b364e46d594c2ec663c9c49f10c1ca541ecc0f","versionType":"git"},{"version":"9864bb4801331daa48514face9d0f4861e4d485b","status":"affected","lessThan":"60a9f7323ae7318a7cce0d387c318da24f1e8726","versionType":"git"},{"version":"9864bb4801331daa48514face9d0f4861e4d485b","status":"affected","lessThan":"86cdcc87d4ba60aebf94ba3346b3c900c5cd79ff","versionType":"git"},{"version":"9864bb4801331daa48514face9d0f4861e4d485b","status":"affected","lessThan":"1ab671b50714ad8e359cf37eb041d8044319ccdc","versionType":"git"},{"version":"9864bb4801331daa48514face9d0f4861e4d485b","status":"affected","lessThan":"22c135635fdd9816c0ef140d6de7b2e4fdf73e89","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/android/binder.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/android/binder.c"]}],"references":["https://git.kernel.org/stable/c/f4c072e544b8c15e6b9157208761db6fa4fe95a1","https://git.kernel.org/stable/c/e9b364e46d594c2ec663c9c49f10c1ca541ecc0f","https://git.kernel.org/stable/c/60a9f7323ae7318a7cce0d387c318da24f1e8726","https://git.kernel.org/stable/c/86cdcc87d4ba60aebf94ba3346b3c900c5cd79ff","https://git.kernel.org/stable/c/1ab671b50714ad8e359cf37eb041d8044319ccdc","https://git.kernel.org/stable/c/22c135635fdd9816c0ef140d6de7b2e4fdf73e89"],"weaknesses":[],"ingestedAt":"2026-10-30T13:00:06.648Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98778.json","commit":"cb14bf1b43b0c9f05f7f40eae2246263fd430780","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98778","state":"PUBLISHED","datePublished":"2026-10-18T15:48:15.254Z","dateUpdated":"2026-10-30T12:39:45.207Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.369Z"},"containers":{"cna":{"title":"binder: fix is_failure flag for superseded transaction cleanup","descriptions":[{"lang":"en","value":"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() 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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"9864bb4801331daa48514face9d0f4861e4d485b","status":"affected","lessThan":"f4c072e544b8c15e6b9157208761db6fa4fe95a1","versionType":"git"},{"version":"9864bb4801331daa48514face9d0f4861e4d485b","status":"affected","lessThan":"e9b364e46d594c2ec663c9c49f10c1ca541ecc0f","versionType":"git"},{"version":"9864bb4801331daa48514face9d0f4861e4d485b","status":"affected","lessThan":"60a9f7323ae7318a7cce0d387c318da24f1e8726","versionType":"git"},{"version":"9864bb4801331daa48514face9d0f4861e4d485b","status":"affected","lessThan":"86cdcc87d4ba60aebf94ba3346b3c900c5cd79ff","versionType":"git"},{"version":"9864bb4801331daa48514face9d0f4861e4d485b","status":"affected","lessThan":"1ab671b50714ad8e359cf37eb041d8044319ccdc","versionType":"git"},{"version":"9864bb4801331daa48514face9d0f4861e4d485b","status":"affected","lessThan":"22c135635fdd9816c0ef140d6de7b2e4fdf73e89","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/android/binder.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/android/binder.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/f4c072e544b8c15e6b9157208761db6fa4fe95a1"},{"url":"https://git.kernel.org/stable/c/e9b364e46d594c2ec663c9c49f10c1ca541ecc0f"},{"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:39:45.207Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}