Use-After-Free in Linux kernel (CVE-2025-38176)
Summary
Vulnerability in Linux kernel (CVE-2025-38176). Successful exploitation can lead to full system takeover.
Original description
The description as published by the source.
In the Linux kernel, the following vulnerability has been resolved:
binder: fix use-after-free in binderfs_evict_inode()
Running 'stress-ng --binderfs 16 --timeout 300' under KASAN-enabled
kernel, I've noticed the following:
BUG: KASAN: slab-use-after-free in binderfs_evict_inode+0x1de/0x2d0
Write of size 8 at addr ffff88807379bc08 by task stress-ng-binde/1699
CPU: 0 UID: 0 PID: 1699 Comm: stress-ng-binde Not tainted 6.14.0-rc7-g586de92313fc-dirty #13
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-3.fc41 04/01/2014
Call Trace:
dump_stack_lvl+0x1c2/0x2a0
? __pfx_dump_stack_lvl+0x10/0x10
? __pfx__printk+0x10/0x10
? __pfx_lock_release+0x10/0x10
? __virt_addr_valid+0x18c/0x540
? __virt_addr_valid+0x469/0x540
print_report+0x155/0x840
? __virt_addr_valid+0x18c/0x540
? __virt_addr_valid+0x469/0x540
? __phys_addr+0xba/0x170
? binderfs_evict_inode+0x1de/0x2d0
kasan_report+0x147/0x180
? binderfs_evict_inode+0x1de/0x2d0
binderfs_evict_inode+0x1de/0x2d0
? __pfx_binderfs_evict_inode+0x10/0x10
evict+0x524/0x9f0
? __pfx_lock_release+0x10/0x10
? __pfx_evict+0x10/0x10
? do_raw_spin_unlock+0x4d/0x210
? _raw_spin_unlock+0x28/0x50
? iput+0x697/0x9b0
__dentry_kill+0x209/0x660
? shrink_kill+0x8d/0x2c0
shrink_kill+0xa9/0x2c0
shrink_dentry_list+0x2e0/0x5e0
shrink_dcache_parent+0xa2/0x2c0
? __pfx_shrink_dcache_parent+0x10/0x10
? __pfx_lock_release+0x10/0x10
? __pfx_do_raw_spin_lock+0x10/0x10
do_one_tree+0x23/0xe0
shrink_dcache_for_umount+0xa0/0…
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2025-38176 has been found in Linux kernel.
Successful exploitation can lead to full system takeover. CVSS score: 7.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Linux kernel CVE-2025-38176" on the vendor's site.
CVE-2025-38176 (Linux kernel) — CWE-416 / CVSS v3 7.8
Attack vector: local / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Use-after-free (CWE-416) exists in Linux kernel.
Check the vendor advisory for the affected versions of Linux kernel.
Severity: High (CVSS 7.8/10). Successful exploitation can lead to full system takeover.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Linux kernel を使っているサービスとバージョンを洗い出す。
-
2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- BellSoft Alpaquita BELL-CVE-2025-38176 linux-lts Fixed in: 6.18.35-r1
- Ubuntu UBUNTU-CVE-2025-38176 linux-hwe-edge
References
- advisory github.com
- advisory nvd.nist.gov
- package git.kernel.org
- web git.kernel.org
- web git.kernel.org
- web git.kernel.org