CVE-2025-39743jfs: truncate good inode pages when hard link is 0
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- May 12, 2026
- First seen by InfoSec Signals
- Oct 19, 2026
Affected products
Linux Linux linux:linux (from the name) | 32983696a48a6c41d99f3eca82ba7510a552d843 builds before 89fff8e3d6710fc32507b8e19eb5afa9fb79b896; 32983696a48a6c41d99f3eca82ba7510a552d843 builds before 5845b926c561b8333cd65169526eec357d7bb449; 32983696a48a6c41d99f3eca82ba7510a552d843 builds before 8ed7275910fb7177012619864e04d3008763f3ea; from 32983696a48a6c41d99f3eca82ba7510a552d843 before b5b471820c33365a8ccd2d463578bf4e47056c2c; 32983696a48a6c41d99f3eca82ba7510a552d843 builds before 34d8e982bac48bdcca7524644a8825a580edce74; from 32983696a48a6c41d99f3eca82ba7510a552d843 before df3fd8daf278eca365f221749ae5b728e8382a04; 32983696a48a6c41d99f3eca82ba7510a552d843 builds before 2b1d5ca395a5fb170c3f885cd42c16179f7f54ec; 32983696a48a6c41d99f3eca82ba7510a552d843 builds before 1bb5cdc3e39f0c2b311fcb631258b7e60d3fb0d3; and 1 more ranges | CNA record |
Siemens SIMATIC CN 4100 siemens:simatic_cn_4100 (from the name) | before V5.0 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 2.6.14 before 5.4.297; from 5.5 before 5.10.241; from 5.11 before 5.15.190; from 5.16 before 6.1.149; from 6.2 before 6.6.103; from 6.7 before 6.12.43; from 6.13 before 6.15.11; from 6.16 before 6.16.2 | NVD |
debian debian_linux debian:debian_linux | 11.0 | NVD |
References
- https://git.kernel.org/stable/c/89fff8e3d6710fc32507b8e19eb5afa9fb79b896patch
- https://git.kernel.org/stable/c/5845b926c561b8333cd65169526eec357d7bb449patch
- https://git.kernel.org/stable/c/8ed7275910fb7177012619864e04d3008763f3eapatch
- https://git.kernel.org/stable/c/b5b471820c33365a8ccd2d463578bf4e47056c2cpatch
- https://git.kernel.org/stable/c/34d8e982bac48bdcca7524644a8825a580edce74patch
- https://git.kernel.org/stable/c/df3fd8daf278eca365f221749ae5b728e8382a04patch
- https://git.kernel.org/stable/c/2b1d5ca395a5fb170c3f885cd42c16179f7f54ecpatch
- https://git.kernel.org/stable/c/1bb5cdc3e39f0c2b311fcb631258b7e60d3fb0d3patch
- https://git.kernel.org/stable/c/2d91b3765cd05016335cd5df5e5c6a29708ec058patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlmailing-list, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlmailing-list, third-party-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.