CVE-2026-98778

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In the Linux kernel, the following vulnerability has been resolved: binder: fix is_failure flag for superseded transaction cleanup When a TF_UPDATE_TXN transaction supersedes a pending async transaction, binder_release_entire_buffer() is called with is_failure=false. Since the superseded transaction was never delivered, binder_apply_fd_fixups() was never called and no fds were installed in the target process.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.

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Produits concernés

• Linux

Références

• https://git.kernel.org/stable/c/1ab671b50714ad8e359cf37eb041d8044319ccdc
• https://git.kernel.org/stable/c/22c135635fdd9816c0ef140d6de7b2e4fdf73e89
• https://git.kernel.org/stable/c/60a9f7323ae7318a7cce0d387c318da24f1e8726
• https://git.kernel.org/stable/c/86cdcc87d4ba60aebf94ba3346b3c900c5cd79ff
• https://git.kernel.org/stable/c/e9b364e46d594c2ec663c9c49f10c1ca541ecc0f

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories