CVE-2025-38206: exfat: fix double free in delayed_free
Vulnerability summary
CVE-2025-38206 is a high (CVSS 7.8) Double Free vulnerability in debian debian_linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.5% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 104 · Related 96Showing 100 of 105.
Timeline
- 04-07-2025PublishedVulnerability first disclosed.
- 02-09-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 5 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · ChainguardEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.19%
Chance of exploitation in the next 30 days
Percentile
9%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.18% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu136 products
- linux< 5.15.0-156.166 | All versions (No fix recorded)
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1092.99 | All versions (No fix recorded)
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Chainguard5 products
- linux-aws-6.12< 6.12.77-r0 | < 6.12.65-r2 | < 6.12.65-r0 | < 6.12.69-r0 | < 6.12.78-r0 | < 6.12.74-r1 | < 6.12.80-r0 | < 6.12.67-r0 | < 6.12.68-r1 | < 6.12.65-r1 | < 6.12.72-r0 | < 6.12.74-r0 | < 6.12.77-r1 | < 6.12.71-r0 | < 6.12.66-r0 | < 6.12.68-r0 | < 6.12.76-r0 | < 6.12.77-r2 | < 6.12.70-r0 | < 6.12.72-r1
- linux-azure-6.12< 6.12.72-r0 | < 6.12.77-r1 | < 6.12.70-r0 | < 6.12.65-r2 | < 6.12.65-r1 | < 6.12.76-r0 | < 6.12.77-r2 | < 6.12.77-r0 | < 6.12.74-r0 | < 6.12.71-r0 | < 6.12.66-r0 | < 6.12.65-r3 | < 6.12.69-r0 | < 6.12.67-r0 | < 6.12.80-r0 | < 6.12.78-r0 | < 6.12.68-r0 | < 6.12.65-r4 | < 6.12.74-r1
- linux-gcp-6.12< 6.12.78-r0 | < 6.12.65-r2 | < 6.12.69-r0 | < 6.12.68-r0 | < 6.12.70-r0 | < 6.12.72-r0 | < 6.12.77-r1 | < 6.12.77-r0 | < 6.12.80-r0 | < 6.12.74-r1 | < 6.12.65-r1 | < 6.12.67-r0 | < 6.12.74-r0 | < 6.12.77-r2 | < 6.12.76-r0 | < 6.12.66-r0 | < 6.12.68-r1 | < 6.12.71-r0
- linux-qemu-6.12< 6.12.65-r2 | < 6.12.77-r1 | < 6.12.78-r0 | < 6.12.66-r0 | < 6.12.71-r0 | < 6.12.77-r0 | < 6.12.68-r0 | < 6.12.74-r1 | < 6.12.67-r0 | < 6.12.72-r0 | < 6.12.65-r1 | < 6.12.80-r0 | < 6.12.77-r2 | < 6.12.70-r0 | < 6.12.74-r0 | < 6.12.69-r0 | < 6.12.76-r0
- linux-vmware-6.12< 6.12.66-r0 | < 6.12.68-r0 | < 6.12.71-r0 | < 6.12.77-r1 | < 6.12.78-r0 | < 6.12.68-r1 | < 6.12.67-r0 | < 6.12.77-r0 | < 6.12.74-r0 | < 6.12.77-r2 | < 6.12.69-r0 | < 6.12.65-r1 | < 6.12.74-r1 | < 6.12.76-r0 | < 6.12.65-r2 | < 6.12.80-r0 | < 6.12.70-r0 | < 6.12.72-r0
Debian3 products
- linux< 6.1.187-1 | < 6.12.111-1 | < 6.16.3-1
- linux-6.12< 6.12.111-1~deb12u1
- debian_linuxEOL11.0
Linux2 products
- linux≥ 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003, < 13d8de1b6568dcc31a95534ced16bc0c9a67bc15 | ≥ 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003, < 66e84439ec2af776ce749e8540f8fdd257774152 | ≥ 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003, < ea27703eb0efbadcd45b9949526160ed90536a72 | ≥ 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003, < ac65f76db9b2ff3fbc9e198c0e9aaf81b111b7d0 | ≥ 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003, < 29abaf93357f4a7d083cf399d4306999e20db31d | ≥ 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003, < d3cef0e7a5c1aa6217c51faa9ce8ecac35d6e1fd | ≥ 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003, < 1f3d9724e16d62c7d42c67d6613b8512f2887c22 | 5.7
- linux_kernel≥ 5.7, < 5.10.239 | ≥ 5.11, < 5.15.186 | ≥ 5.16, < 6.15.4
4 vendors · 146 products