7.8

CVE-2025-38175

In the Linux kernel, the following vulnerability has been resolved:

binder: fix yet another UAF in binder_devices

Commit e77aff5528a18 ("binderfs: fix use-after-free in binder_devices")
addressed a use-after-free where devices could be released without first
being removed from the binder_devices list. However, there is a similar
path in binder_free_proc() that was missed:

  ==================================================================
  BUG: 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
  [...]
  ==================================================================

Call binder_remove_device() within binder_free_proc() to ensure the
device is removed from the binder_devices list before being kfreed.
Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.14 < 6.14.11
Linux ≫ Linux Kernel Version >= 6.15 < 6.15.2
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.01% 0.014
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.