# CVE-2024-46740: linux: In the Linux kernel, the following vulnerability has been resolved: binder: fix UAF caused by offsets overwrite Bin... CVE-2024-46740 is fixed in 19 products on 1 platform, first by DEBIAN-CVE-2024-46740, released September 18, 2024. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2024-46740 - Priority: High - CVSS: 7.8 (high) - EPSS: 0.0029 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Sep 18, 2024 ## Description In the Linux kernel, the following vulnerability has been resolved: binder: fix UAF caused by offsets overwrite Binder objects are processed and copied individually into the target buffer during transactions. Any raw data in-between these objects is copied as well. However, this raw data copy lacks an out-of-bounds check. If the raw data exceeds the data section size then the copy overwrites the offsets section. This eventually triggers an error that attempts to unwind the processed objects. However, at this point the offsets used to index these objects are now corrupted. Unwinding with corrupted offsets can result in decrements of arbitrary nodes and lead to their premature release. Other users of such nodes are left with a dangling pointer triggering a use-after-free. This issue is made evident by the following KASAN report (trimmed): ================================================================== BUG: KASAN: slab-use-after-free in _raw_spin_lock+0xe4/0x19c Write of size 4 at addr ffff47fc91598f04 by task binder-util/743 CPU: 9 UID: 0 PID: 743 Comm: binder-util Not tainted 6.11.0-rc4 #1 Hardware name: linux,dummy-virt (DT) Call trace: _raw_spin_lock+0xe4/0x19c binder_free_buf+0x128/0x434 binder_thread_write+0x8a4/0x3260 binder_ioctl+0x18f0/0x258c [...] Allocated by task 743: __kmalloc_cache_noprof+0x110/0x270 binder_new_node+0x50/0x700 binder_transaction+0x413c/0x6da8 binder_thread_write+0x978/0x3260 binder_ioctl+0x18f0/0x258c [...] Freed by task 745: kfree+0xbc/0x208 binder_thread_read+0x1c5c/0x37d4 binder_ioctl+0x16d8/0x258c [...] ================================================================== To avoid this issue, let's check that the raw data copy is within the boundaries of the data section. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | bpftool ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | bpftool ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek ol 8 | 0:5.4.17-2136.337.5.el8uek | [ELSA-2024-12813](https://patchblox.com/security/data/fix/linux/elsa-2024-12813.md) | Nov 12, 2024 | | Linux | kernel-uek ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-container ol 8 | 0:5.4.17-2136.337.5.el8uek | [ELSA-2024-12813](https://patchblox.com/security/data/fix/linux/elsa-2024-12813.md) | Nov 12, 2024 | | Linux | kernel-uek-container ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-container ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-container-debug ol 8 | 0:5.4.17-2136.337.5.el8uek | [ELSA-2024-12813](https://patchblox.com/security/data/fix/linux/elsa-2024-12813.md) | Nov 12, 2024 | | Linux | kernel-uek-container-debug ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-container-debug ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-core ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-core ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug ol 8 | 0:5.4.17-2136.337.5.el8uek | [ELSA-2024-12813](https://patchblox.com/security/data/fix/linux/elsa-2024-12813.md) | Nov 12, 2024 | | Linux | kernel-uek-debug ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-core ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-core ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-devel ol 8 | 0:5.4.17-2136.337.5.el8uek | [ELSA-2024-12813](https://patchblox.com/security/data/fix/linux/elsa-2024-12813.md) | Nov 12, 2024 | | Linux | kernel-uek-debug-devel ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-devel ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-modules ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-modules ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-modules-extra ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-modules-extra ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-devel ol 8 | 0:5.4.17-2136.337.5.el8uek | [ELSA-2024-12813](https://patchblox.com/security/data/fix/linux/elsa-2024-12813.md) | Nov 12, 2024 | | Linux | kernel-uek-devel ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-devel ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-doc ol 8 | 0:5.4.17-2136.337.5.el8uek | [ELSA-2024-12813](https://patchblox.com/security/data/fix/linux/elsa-2024-12813.md) | Nov 12, 2024 | | Linux | kernel-uek-doc ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-doc ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-modules ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-modules ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-modules-extra ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-modules-extra ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-tools ol 8 | 0:5.4.17-2136.337.5.el7uek | [ELSA-2024-12813](https://patchblox.com/security/data/fix/linux/elsa-2024-12813.md) | Nov 12, 2024 | | Linux | kernel-uek-tools-libs ol 8 | 0:5.4.17-2136.337.5.el7uek | [ELSA-2024-12813](https://patchblox.com/security/data/fix/linux/elsa-2024-12813.md) | Nov 12, 2024 | | Linux | linux Debian 12.15 (bookworm) | 6.1.112-1 | [DEBIAN-CVE-2024-46740](https://patchblox.com/security/data/fix/linux/debian-cve-2024-46740.md) | Sep 18, 2024 | | Linux | linux Debian 13.5 (trixie) | 6.10.11-1 | [DEBIAN-CVE-2024-46740](https://patchblox.com/security/data/fix/linux/debian-cve-2024-46740.md) | Sep 18, 2024 | | Linux | linux Debian 14 | 6.10.11-1 | [DEBIAN-CVE-2024-46740](https://patchblox.com/security/data/fix/linux/debian-cve-2024-46740.md) | Sep 18, 2024 | | Linux | perf ol 8 | 0:5.4.17-2136.337.5.el7uek | [ELSA-2024-12813](https://patchblox.com/security/data/fix/linux/elsa-2024-12813.md) | Nov 12, 2024 | | Linux | python-perf ol 8 | 0:5.4.17-2136.337.5.el7uek | [ELSA-2024-12813](https://patchblox.com/security/data/fix/linux/elsa-2024-12813.md) | Nov 12, 2024 | --- Data as of 2026-11-08T13:06:02Z UTC. 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