CVE-2026-43262
gfs2: fiemap page fault fix
MEDIUM 5.5
At a glance
- Source
- NVD
- EPSS
- EPSS 0.11 % · percentile 1 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
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.
Weaknesses (CWE)
- CWE-401 — Missing Release of Memory after Effective Lifetime
References
- https://git.kernel.org/stable/c/5d5d9ec957bfa1eb2b05861c19f5d701dd006db7
- https://git.kernel.org/stable/c/cead3bebf3e318578b8a86a5472015d713d2a8a8
- https://git.kernel.org/stable/c/e428670cfb2993d8c224effd076242ca6b0950de
- https://git.kernel.org/stable/c/5d2c4f182ea8516de8682e2b60411c03df00e3ea
- https://git.kernel.org/stable/c/2e121c53b581e40397ae08090a7af4ed10781fbc
- https://git.kernel.org/stable/c/9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab
- https://git.kernel.org/stable/c/e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2026-27659
- GCVE · GCVE-0-2026-43262
CERT-FR advisories
- CERTFR-2026-AVI-1229 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1093 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1091 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1064 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0985 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0954 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0926 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0861 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0831 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 2.6.29 < 5.15.202cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.165cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.128cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.12.75cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.13 < 6.18.16cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.19 < 6.19.6
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected e9079cce201784632aed4b1a3121ee38c1ced0b6 < 5d5d9ec957bfa1eb2b05861c19f5d701dd006db7 ; affected e9079cce201784632aed4b1a3121ee38c1ced0b6 < cead3bebf3e318578b8a86a5472015d713d2a8a8 ; affected e9079cce201784632aed4b1a3121ee38c1ced0b6 < e428670cfb2993d8c224effd076242ca6b0950de ; affected e9079cce201784632aed4b1a3121ee38c1ced0b6 < 5d2c4f182ea8516de8682e2b60411c03df00e3ea ; affected e9079cce201784632aed4b1a3121ee38c1ced0b6 < 2e121c53b581e40397ae08090a7af4ed10781fbc ; affected e9079cce201784632aed4b1a3121ee38c1ced0b6 < 9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab |
| Linux · Linux | affected 2.6.29 ; unaffected 0 < 2.6.29 ; unaffected 5.15.202 ≤ 5.15.* ; unaffected 6.1.165 ≤ 6.1.* ; unaffected 6.6.128 ≤ 6.6.* ; unaffected 6.12.75 ≤ 6.12.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |