{"id":"CVE-2025-38175","summary":"binder: fix yet another UAF in binder_devices","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix yet another UAF in binder_devices\n\nCommit e77aff5528a18 (\"binderfs: fix use-after-free in binder_devices\")\naddressed a use-after-free where devices could be released without first\nbeing removed from the binder_devices list. However, there is a similar\npath in binder_free_proc() that was missed:\n\n  ==================================================================\n  BUG: KASAN: slab-use-after-free in binder_remove_device+0xd4/0x100\n  Write of size 8 at addr ffff0000c773b900 by task umount/467\n  CPU: 12 UID: 0 PID: 467 Comm: umount Not tainted 6.15.0-rc7-00138-g57483a362741 #9 PREEMPT\n  Hardware name: linux,dummy-virt (DT)\n  Call trace:\n   binder_remove_device+0xd4/0x100\n   binderfs_evict_inode+0x230/0x2f0\n   evict+0x25c/0x5dc\n   iput+0x304/0x480\n   dentry_unlink_inode+0x208/0x46c\n   __dentry_kill+0x154/0x530\n   [...]\n\n  Allocated by task 463:\n   __kmalloc_cache_noprof+0x13c/0x324\n   binderfs_binder_device_create.isra.0+0x138/0xa60\n   binder_ctl_ioctl+0x1ac/0x230\n  [...]\n\n  Freed by task 215:\n   kfree+0x184/0x31c\n   binder_proc_dec_tmpref+0x33c/0x4ac\n   binder_deferred_func+0xc10/0x1108\n   process_one_work+0x520/0xba4\n  [...]\n  ==================================================================\n\nCall binder_remove_device() within binder_free_proc() to ensure the\ndevice is removed from the binder_devices list before being kfreed.","modified":"2026-04-02T12:47:50.904060Z","published":"2025-07-04T10:39:56.392Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38175.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/4a7694f499cae5b83412c5281bf2c961f34f2ed6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/72a726fb5f25fbb31d6060acfb671c1955831245"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9857af0fcff385c75433f2162c30c62eb912ef6d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38175.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38175"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"12d909cac1e1c4147cc3417fee804ee12fc6b984"},{"fixed":"4a7694f499cae5b83412c5281bf2c961f34f2ed6"},{"fixed":"72a726fb5f25fbb31d6060acfb671c1955831245"},{"fixed":"9857af0fcff385c75433f2162c30c62eb912ef6d"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38175.json"}}],"schema_version":"1.7.5"}