CVE-2026-43262 (GCVE-0-2026-43262)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:28 – Updated: 2026-05-07 17:15
VLAI?
Title
gfs2: fiemap page fault fix
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e9079cce201784632aed4b1a3121ee38c1ced0b6 , < 5d5d9ec957bfa1eb2b05861c19f5d701dd006db7 (git)
Affected: e9079cce201784632aed4b1a3121ee38c1ced0b6 , < cead3bebf3e318578b8a86a5472015d713d2a8a8 (git)
Affected: e9079cce201784632aed4b1a3121ee38c1ced0b6 , < e428670cfb2993d8c224effd076242ca6b0950de (git)
Affected: e9079cce201784632aed4b1a3121ee38c1ced0b6 , < 5d2c4f182ea8516de8682e2b60411c03df00e3ea (git)
Affected: e9079cce201784632aed4b1a3121ee38c1ced0b6 , < 2e121c53b581e40397ae08090a7af4ed10781fbc (git)
Affected: e9079cce201784632aed4b1a3121ee38c1ced0b6 , < 9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab (git)
Affected: e9079cce201784632aed4b1a3121ee38c1ced0b6 , < e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2 (git)
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    Linux Linux Affected: 2.6.29
Unaffected: 0 , < 2.6.29 (semver)
Unaffected: 5.15.202 , ≤ 5.15.* (semver)
Unaffected: 6.1.165 , ≤ 6.1.* (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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