CVE-2026-43262 Details
Description
In the Linux kernel, the following vulnerability has been resolved: gfs2: fiemap page fault fix In gfs2_fiemap(), we are calling iomap_fiemap() while holding the inode glock. This can lead to recursive glock taking if the fiemap buffer is memory mapped to the same inode and accessing it triggers a page fault. Fix by disabling page faults for iomap_fiemap() and faulting in the buffer by hand if necessary. Fixes xfstest generic/742.
A vulnerability in the Linux kernel's GFS2 file system can lead to recursive glock taking. This issue arises in the 'gfs2_fiemap()' function, where 'iomap_fiemap()' is called while holding the inode glock. If the fiemap buffer is memory-mapped to the same inode and accessed, it can trigger a page fault, causing the glock to be taken again recursively. The vulnerability affects several versions of the Linux kernel.
The vulnerability has been fixed in the Linux kernel. Users should upgrade to the latest version where this issue has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/2e121c53b581e40397ae08090a7af4ed10781fbc | kernel.org | Patch |
| https://git.kernel.org/stable/c/5d2c4f182ea8516de8682e2b60411c03df00e3ea | kernel.org | Patch |
| https://git.kernel.org/stable/c/5d5d9ec957bfa1eb2b05861c19f5d701dd006db7 | kernel.org | Patch |
| https://git.kernel.org/stable/c/9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab | kernel.org | Patch |
| https://git.kernel.org/stable/c/cead3bebf3e318578b8a86a5472015d713d2a8a8 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e428670cfb2993d8c224effd076242ca6b0950de | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 2.6.29, < 5.15.202 >= 5.16, < 6.1.165 >= 6.2, < 6.6.128 >= 6.7, < 6.12.75 >= 6.13, < 6.18.16 >= 6.19, < 6.19.6 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 8, 2026 | Initial Analysis | [email protected] |
| May 6, 2026 | New CVE Received | kernel.org |