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CVE-2025-38206— exfat: fix double free in delayed_free

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国等都是美国(Linux)基金会的产品。Linux kernel是开源操作系统Linux所使用的内核。ClickHouse ch等都是(ClickHouse)开源的产品。ch是一个ClickHouse的低级Go客户端。Symfony ux等都是(Symfony)开源的产品。ux是一个Symfony的JavaScript生态系统。 Linux kernel存在安全漏洞，该漏洞源于双重释放导致内存损坏。

CVSS 7.8 · High EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003< 13d8de1b6568dcc31a95534ced16bc0c9a67bc15 affected
1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003< 66e84439ec2af776ce749e8540f8fdd257774152 affected
1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003< ea27703eb0efbadcd45b9949526160ed90536a72 affected
1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003< ac65f76db9b2ff3fbc9e198c0e9aaf81b111b7d0 affected
1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003< 29abaf93357f4a7d083cf399d4306999e20db31d affected
1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003< d3cef0e7a5c1aa6217c51faa9ce8ecac35d6e1fd affected
1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003< 1f3d9724e16d62c7d42c67d6613b8512f2887c22 affected
5.7 affected
… +8 more rows
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I. Basic Information for CVE-2025-38206

Vulnerability Information
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Vulnerability Title
exfat: fix double free in delayed_free
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: exfat: fix double free in delayed_free The double free could happen in the following path. exfat_create_upcase_table() exfat_create_upcase_table() : return error exfat_free_upcase_table() : free ->vol_utbl exfat_load_default_upcase_table : return error exfat_kill_sb() delayed_free() exfat_free_upcase_table() <--------- double free This patch set ->vol_util as NULL after freeing it.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国等都是美国(Linux)基金会的产品。Linux kernel是开源操作系统Linux所使用的内核。ClickHouse ch等都是(ClickHouse)开源的产品。ch是一个ClickHouse的低级Go客户端。Symfony ux等都是(Symfony)开源的产品。ux是一个Symfony的JavaScript生态系统。 Linux kernel存在安全漏洞，该漏洞源于双重释放导致内存损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 ~ 13d8de1b6568dcc31a95534ced16bc0c9a67bc15 -
Linux Linux 5.7 -

II. Public POCs for CVE-2025-38206

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III. Intelligence Information for CVE-2025-38206

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Patches & Fixes for CVE-2025-38206 (3)

Same Patch Batch · Linux · 2025-07-04 · 59 CVEs total

CVE-2025-38209 9.8 CRITICAL nvme-tcp: remove tag set when second admin queue config fails
CVE-2025-38211 9.8 CRITICAL RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction
CVE-2025-38174 8.8 HIGH thunderbolt: Do not double dequeue a configuration request
CVE-2025-38216 8.8 HIGH iommu/vt-d: Restore context entry setup order for aliased devices
CVE-2025-38233 7.8 HIGH powerpc64/ftrace: fix clobbered r15 during livepatching
CVE-2025-38230 7.8 HIGH jfs: validate AG parameters in dbMount() to prevent crashes
CVE-2025-38227 7.8 HIGH media: vidtv: Terminating the subsequent process of initialization failure
CVE-2025-38226 7.8 HIGH media: vivid: Change the siize of the composing
CVE-2025-38224 7.8 HIGH can: kvaser_pciefd: refine error prone echo_skb_max handling logic
CVE-2025-38218 7.8 HIGH f2fs: fix to do sanity check on sit_bitmap_size
CVE-2025-38232 7.8 HIGH NFSD: fix race between nfsd registration and exports_proc
CVE-2025-38212 7.8 HIGH ipc: fix to protect IPCS lookups using RCU
CVE-2025-38175 7.8 HIGH binder: fix yet another UAF in binder_devices
CVE-2025-38234 7.8 HIGH sched/rt: Fix race in push_rt_task
CVE-2025-38204 7.8 HIGH jfs: fix array-index-out-of-bounds read in add_missing_indices
CVE-2025-38192 7.8 HIGH net: clear the dst when changing skb protocol
CVE-2025-38193 7.8 HIGH net_sched: sch_sfq: reject invalid perturb period
CVE-2025-38187 7.8 HIGH drm/nouveau: fix a use-after-free in r535_gsp_rpc_push()
CVE-2025-38180 7.8 HIGH net: atm: fix /proc/net/atm/lec handling
CVE-2025-38184 7.8 HIGH tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer

Showing top 20 of 59 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38206

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