Vulnerability-Lookup

FKIE_CVE-2026-43106

Vulnerability from fkie_nvd - Published: 2026-05-06 10:16 - Updated: 2026-05-11 17:31

Severity ?

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: cachefiles: fix incorrect dentry refcount in cachefiles_cull() The patch mentioned below changed cachefiles_bury_object() to expect 2 references to the 'rep' dentry. Three of the callers were changed to use start_removing_dentry() which takes an extra reference so in those cases the call gets the expected references. However there is another call to cachefiles_bury_object() in cachefiles_cull() which did not need to be changed to use start_removing_dentry() and so was not properly considered. It still passed the dentry with just one reference so the net result is that a reference is lost. To meet the expectations of cachefiles_bury_object(), cachefiles_cull() must take an extra reference before the call. It will be dropped by cachefiles_bury_object().

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1635c2acdde86c4f555b627aec873c8677c421ed	Patch
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6577df7dc7a7de128442b6192c7a32195c923480	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0

JSON

To clipboard

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          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
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}

CVE-2026-43106 (GCVE-0-2026-43106)

Vulnerability from cvelistv5 – Published: 2026-05-06 07:40 – Updated: 2026-05-11 22:17

Title

cachefiles: fix incorrect dentry refcount in cachefiles_cull()

Summary

Severity ?

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux

References

2 references

URL	Tags
https://git.kernel.org/stable/c/6577df7dc7a7de128…
https://git.kernel.org/stable/c/1635c2acdde86c4f5…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 7bb1eb45e43c4730cbc5a48b9e9295049fccdacb , < 6577df7dc7a7de128442b6192c7a32195c923480 (git) Affected: 7bb1eb45e43c4730cbc5a48b9e9295049fccdacb , < 1635c2acdde86c4f555b627aec873c8677c421ed (git)
Linux	Linux	Affected: 6.19 Unaffected: 0 , < 6.19 (semver) Unaffected: 6.19.14 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

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.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-43106

CVE-2026-43106 (GCVE-0-2026-43106)

Tags

Sightings

Nomenclature