CVE-2025-71292In the Linux kernel, the following vulnerability has been resolved: jfs: nlink overflow in jfs_rename If nlink is maximal for a directory (-1) and inside that directory you perform a rename for some…
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In the Linux kernel, the following vulnerability has been resolved: jfs: nlink overflow in jfs_rename If nlink is maximal for a directory (-1) and inside that directory you perform a rename for some child directory (not moving from the parent), then the nlink of the first directory is first incremented and later decremented. Normally this is fine, but when nlink = -1 this causes a wrap around to 0, and then drop_nlink issues a warning. After applying the patch syzbot no longer issues any warnings. I also ran some basic fs tests to look for any regressions.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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
- Not given
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 2.6.12.1 before 5.10.252; from 5.11 before 5.15.202; from 5.16 before 6.1.165; from 6.2 before 6.6.128; from 6.7 before 6.12.75; from 6.13 before 6.18.16; from 6.19 before 6.19.6; 2.6.12; and 5 more ranges | NVD |
References
- https://git.kernel.org/stable/c/2108829a59f081e822fdab8c2cd7131deb8aa8a1patch
- https://git.kernel.org/stable/c/5d77c36cd4b698649f5c30c5f6c084f4f61d1880patch
- https://git.kernel.org/stable/c/9218dc26fd922b09858ecd3666ed57dfd8098da8patch
- https://git.kernel.org/stable/c/93c325746ae59709b4f9bad4e3e4761c8d566c70patch
- https://git.kernel.org/stable/c/a3d66089e50a6e0142f8884471f74292102ea9aapatch
- https://git.kernel.org/stable/c/b4330a0d0947fbdc9d445cbbeabd8cc910a8c9capatch
- https://git.kernel.org/stable/c/f70fcbc2ac7c24f087a2c895c5753aa730b1e479patch
- https://git.kernel.org/stable/c/fe136426e30ca6debcf916fd6a141555ed9fde74patch
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.