Medium severity · published Sep 4, 2025
CVE-2025-38701
ext4: do not BUG when INLINE_DATA_FL lacks system.data xattr
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
ext4: do not BUG when INLINE_DATA_FL lacks system.data xattr
A syzbot fuzzed image triggered a BUG_ON in ext4_update_inline_data()
when an inode had the INLINE_DATA_FL flag set but was missing the
system.data extended attribute.
Since this can happen due to a maiciouly fuzzed file system, we
shouldn't BUG, but rather, report it as a corrupted file system.
Add similar replacements of BUG_ON with EXT4_ERROR_INODE() ii
ext4_create_inline_data() and ext4_inline_data_truncate().
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
3.8 before 5.4.297; 5.5 before 5.10.241; 5.11 before 5.15.190; 5.16 before 6.1.149; 6.2 before 6.6.103; 6.7 before 6.12.43; +2 more · source: NVD
LI
Linux · Linux
67cf5b09a46f72e048501b84996f2f77bc42e947 before 8085a7324d8ec448c4a764af7853e19bbd64e17a; 67cf5b09a46f72e048501b84996f2f77bc42e947 before 1199a6399895f4767f0b9a68a6ff47c3f799b7c7; 67cf5b09a46f72e048501b84996f2f77bc42e947 before 7f322c12df7aeed1755acd3c6fab48c7807795fb; 67cf5b09a46f72e048501b84996f2f77bc42e947 before 2817ac83cb4732597bf36853fe13ca616f4ee4e2; 67cf5b09a46f72e048501b84996f2f77bc42e947 before d960f4b793912f35e9d72bd9d1e90553063fcbf1; 67cf5b09a46f72e048501b84996f2f77bc42e947 before 81e7e2e7ba07e7c8cdce43ccad2f91adbc5a919c; +4 more · source: vendor
DL
Debian Linux · Debian
11.0 · source: NVD
SC
SIMATIC CN 4100 · Siemens
before V5.0 · source: CISA
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.5; V3.1.5 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.5; V3.1.5 · source: CISA
SS
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.5 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-38701
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-38701
Patch
https://git.kernel.org/stable/c/099b847ccc6c1ad2f805d13cfbcc83f5b6d4bc42
Patch
https://git.kernel.org/stable/c/1199a6399895f4767f0b9a68a6ff47c3f799b7c7
Patch
https://git.kernel.org/stable/c/279c87ef7b9da34f65c2e4db586e730b667a6fb9
Patch
https://git.kernel.org/stable/c/2817ac83cb4732597bf36853fe13ca616f4ee4e2
Patch
https://git.kernel.org/stable/c/7f322c12df7aeed1755acd3c6fab48c7807795fb
Patch
https://git.kernel.org/stable/c/8085a7324d8ec448c4a764af7853e19bbd64e17a
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