CVE-2026-98778
Last modified
CVE-2026-98778 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: binder: fix is_failure flag for superseded transaction cleanup When a TF_UPDATE_TXN transaction supersedes a pending async transaction, binder_release_entire_buffer() is called with is_failure=false. Since the superseded transaction was never delivered, binder_apply_fd_fixups() was never called and no fds were installed in the target process. With is_failure=false, the BINDER_TYPE_FDA cleanup handler interprets stale buffer contents as installed fd numbers and passes them to binder_deferred_fd_close(), closing unrelated file descriptors. Pass is_failure=true since the transaction was never delivered to the target, matching the semantics of all other undelivered-transaction cleanup paths.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: binder: fix is_failure flag for superseded transaction cleanup When a TF_UPDATE_TXN transaction supersedes a pending async transaction, binder_release_entire_buffer() is called with is_failure=false. Since the superseded transaction was never delivered, binder_apply_fd_fixups() was never called and no fds were installed in the target process. With is_failure=false, the BINDER_TYPE_FDA cleanup handler interprets stale buffer contents as installed fd numbers and passes them to binder_deferred_fd_close(), closing unrelated file descriptors. Pass is_failure=true since the transaction was never delivered to the target, matching the semantics of all other undelivered-transaction cleanup paths.
Metrics
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 9864bb4801331daa48514face9d0f4861e4d485b, < f4c072e544b8c15e6b9157208761db6fa4fe95a1; >= 9864bb4801331daa48514face9d0f4861e4d485b, < e9b364e46d594c2ec663c9c49f10c1ca541ecc0f; >= 9864bb4801331daa48514face9d0f4861e4d485b, < 60a9f7323ae7318a7cce0d387c318da24f1e8726; >= 9864bb4801331daa48514face9d0f4861e4d485b, < 86cdcc87d4ba60aebf94ba3346b3c900c5cd79ff; >= 9864bb4801331daa48514face9d0f4861e4d485b, < 1ab671b50714ad8e359cf37eb041d8044319ccdc; >= 9864bb4801331daa48514face9d0f4861e4d485b, < 22c135635fdd9816c0ef140d6de7b2e4fdf73e89 |
| Linux | Linux | 6.0 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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