gfs2: fiemap page fault fix
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.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for help- Published
- May 6, 2026
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 5th percentile
- CWE
- CWE-401
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Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 22 / 40 · 5.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel2.6.29 and later · before 5.15.202
- linux linux kernel5.16 and later · before 6.1.165
- linux linux kernel6.2 and later · before 6.6.128
- linux linux kernel6.7 and later · before 6.12.75
- linux linux kernel6.13 and later · before 6.18.16
- linux linux kernel6.19 and later · before 6.19.6
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 2.6.29affected
- e9079cce201784632aed4b1a3121ee38c1ced0b6 and later · before 5d5d9ec957bfa1eb2b05861c19f5d701dd006db7affected · git
- e9079cce201784632aed4b1a3121ee38c1ced0b6 and later · before cead3bebf3e318578b8a86a5472015d713d2a8a8affected · git
- e9079cce201784632aed4b1a3121ee38c1ced0b6 and later · before e428670cfb2993d8c224effd076242ca6b0950deaffected · git
- e9079cce201784632aed4b1a3121ee38c1ced0b6 and later · before 5d2c4f182ea8516de8682e2b60411c03df00e3eaaffected · git
- e9079cce201784632aed4b1a3121ee38c1ced0b6 and later · before 2e121c53b581e40397ae08090a7af4ed10781fbcaffected · git
- e9079cce201784632aed4b1a3121ee38c1ced0b6 and later · before 9d15fee888f0e8938c9aeed71ec9c2cbba0c88abaffected · git
- e9079cce201784632aed4b1a3121ee38c1ced0b6 and later · before e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2affected · git
- before 2.6.29not affected · semver
- 5.15.202 and later · up to and including 5.15.*not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 6.1.170-1 | 6.1.170-1 |
| Debian:13 | linux | before 6.12.85-1 | 6.12.85-1 |
| Debian:14 | linux | before 6.19.6-1 | 6.19.6-1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
- CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV77This week
- CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV77This week
- CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV77This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 2e121c53b581e40397ae08090a7af4ed10781fbc | Vendor (CNA) |
| Linux Linux | 5d2c4f182ea8516de8682e2b60411c03df00e3ea | Vendor (CNA) |
| Linux Linux | 5d5d9ec957bfa1eb2b05861c19f5d701dd006db7 | Vendor (CNA) |
| Linux Linux | 9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab | Vendor (CNA) |
| Linux Linux | cead3bebf3e318578b8a86a5472015d713d2a8a8 | Vendor (CNA) |
| Linux Linux | e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2 | Vendor (CNA) |
| Linux Linux | e428670cfb2993d8c224effd076242ca6b0950de | Vendor (CNA) |
| debian:linux | 6.1.170-1 · Debian:12 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-401 · Missing Release of Memory after Effective LifetimeCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/stable/c/2e121c53b581e40397ae08090a7af4ed10781fbc
- git.kernel.org/stable/c/5d2c4f182ea8516de8682e2b60411c03df00e3ea
- git.kernel.org/stable/c/5d5d9ec957bfa1eb2b05861c19f5d701dd006db7
- git.kernel.org/stable/c/9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab
- git.kernel.org/stable/c/cead3bebf3e318578b8a86a5472015d713d2a8a8
- git.kernel.org/stable/c/e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2
- git.kernel.org/stable/c/e428670cfb2993d8c224effd076242ca6b0950de
Vendor advisories and official records. Exploit/PoC links are deliberately left out.