CVE-2025-38175

{"id": "CVE-2025-38175", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2025-07-04T11:15:51.420", "references": [{"url": "https://git.kernel.org/stable/c/4a7694f499cae5b83412c5281bf2c961f34f2ed6", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/72a726fb5f25fbb31d6060acfb671c1955831245", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9857af0fcff385c75433f2162c30c62eb912ef6d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: binder: corrige otro UAF en binder_devices El commit e77aff5528a18 (\"binderfs: corrige uuse-after-free en binder_devices\") abord\u00f3 un use-after-free donde los dispositivos pod\u00edan liberarse sin eliminarse primero de la lista binder_devices. Sin embargo, hay una ruta similar en binder_free_proc() que se omiti\u00f3: ====================================================================== ERROR: KASAN: slab-use-after-free in binder_remove_device+0xd4/0x100 Write of size 8 at addr ffff0000c773b900 by task umount/467 CPU: 12 UID: 0 PID: 467 Comm: umount Not tainted 6.15.0-rc7-00138-g57483a362741 #9 PREEMPT Hardware name: linux,dummy-virt (DT) Call trace: binder_remove_device+0xd4/0x100 binderfs_evict_inode+0x230/0x2f0 evict+0x25c/0x5dc iput+0x304/0x480 dentry_unlink_inode+0x208/0x46c __dentry_kill+0x154/0x530 [...] Allocated by task 463: __kmalloc_cache_noprof+0x13c/0x324 binderfs_binder_device_create.isra.0+0x138/0xa60 binder_ctl_ioctl+0x1ac/0x230 [...] Freed by task 215: kfree+0x184/0x31c binder_proc_dec_tmpref+0x33c/0x4ac binder_deferred_func+0xc10/0x1108 process_one_work+0x520/0xba4 [...] ====================================================================== Llame a binder_remove_device() dentro de binder_free_proc() para asegurarse de que el dispositivo se elimine de la lista binder_devices antes de ser liberado."}], "lastModified": "2025-11-19T21:04:54.850", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "490796E9-2E2D-45F9-84D0-6DCC48C4BB7F", "versionEndExcluding": "6.14.11", "versionStartIncluding": "6.14"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5C28A2D1-4E5D-4F87-AEFA-9268B4CB0980", "versionEndExcluding": "6.15.2", "versionStartIncluding": "6.15"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}