In the Linux kernel, the following vulnerability has been resolved: binder: check offset alignment in binder_get_object() Commit 6d98eb95b450 ("binder: avoid potential data leakage when copying txn") introduced changes to how binder objects are copied. In doing so, it unintentionally removed an offset alignment check done through calls to binder_alloc_copy_from_buffer() -> check_buffer(). These calls were replaced in binder_get_object() with copy_from_user(), so now an explicit offset alignment check is needed here. This avoids later complications when unwinding the objects gets harder. It is worth noting this check existed prior to commit 7a67a39320df ("binder: add function to copy binder object from buffer"), likely removed due to redundancy at the time.
History

Fri, 22 Nov 2024 12:00:00 +0000

Type Values Removed Values Added
References

Tue, 05 Nov 2024 10:45:00 +0000

Type Values Removed Values Added
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-04-24T23:23:40.600Z

Updated: 2024-12-19T08:50:17.079Z

Reserved: 2024-02-19T14:20:24.194Z

Link: CVE-2024-26926

cve-icon Vulnrichment

Updated: 2024-08-02T00:21:05.552Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-04-25T06:15:57.780

Modified: 2024-11-21T09:03:24.013

Link: CVE-2024-26926

cve-icon Redhat

Severity : Low

Publid Date: 2024-04-24T00:00:00Z

Links: CVE-2024-26926 - Bugzilla