High severity · published Sep 11, 2025
CVE-2025-39743
jfs: truncate good inode pages when hard link is 0
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
jfs: truncate good inode pages when hard link is 0
The fileset value of the inode copy from the disk by the reproducer is
AGGR_RESERVED_I. When executing evict, its hard link number is 0, so its
inode pages are not truncated. This causes the bugon to be triggered when
executing clear_inode() because nrpages is greater than 0.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
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
2.6.14 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
32983696a48a6c41d99f3eca82ba7510a552d843 before 89fff8e3d6710fc32507b8e19eb5afa9fb79b896; 32983696a48a6c41d99f3eca82ba7510a552d843 before 5845b926c561b8333cd65169526eec357d7bb449; 32983696a48a6c41d99f3eca82ba7510a552d843 before 8ed7275910fb7177012619864e04d3008763f3ea; 32983696a48a6c41d99f3eca82ba7510a552d843 before b5b471820c33365a8ccd2d463578bf4e47056c2c; 32983696a48a6c41d99f3eca82ba7510a552d843 before 34d8e982bac48bdcca7524644a8825a580edce74; 32983696a48a6c41d99f3eca82ba7510a552d843 before df3fd8daf278eca365f221749ae5b728e8382a04; +4 more · source: vendor
DL
Debian Linux · Debian
11.0 · source: NVD
SC
SIMATIC CN 4100 · Siemens
before V5.0 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-39743
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-39743
Patch
https://git.kernel.org/stable/c/1bb5cdc3e39f0c2b311fcb631258b7e60d3fb0d3
Patch
https://git.kernel.org/stable/c/2b1d5ca395a5fb170c3f885cd42c16179f7f54ec
Patch
https://git.kernel.org/stable/c/2d91b3765cd05016335cd5df5e5c6a29708ec058
Patch
https://git.kernel.org/stable/c/34d8e982bac48bdcca7524644a8825a580edce74
Patch
https://git.kernel.org/stable/c/5845b926c561b8333cd65169526eec357d7bb449
Patch
https://git.kernel.org/stable/c/89fff8e3d6710fc32507b8e19eb5afa9fb79b896
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