Vulnerability-Lookup

FKIE_CVE-2022-50496

Vulnerability from fkie_nvd - Published: 2025-10-04 16:15 - Updated: 2026-01-22 19:06

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: dm cache: Fix UAF in destroy() Dm_cache also has the same UAF problem when dm_resume() and dm_destroy() are concurrent. Therefore, cancelling timer again in destroy().

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/034cbc8d3b47a56acd89453c29632a9c117de09d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2b17026685a270b2beaf1cdd9857fcedd3505c7e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2f097dfac7579fd84ff98eb1d3acd41d53a485f3	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4d20032dd90664de09f2902a7ea49ae2f7771746	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6a3e412c2ab131c54945327a7676b006f000a209	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6a459d8edbdbe7b24db42a5a9f21e6aa9e00c2aa	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6ac4f36910764cb510bafc4c3768544f86ca48ca	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/993406104d2b28fe470126a062ad37a1e21e792e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d2a0b298ebf83ab6236f66788a3541e91ce75a70	Patch

Impacted products

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

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
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          "cpeMatch": [
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  "id": "CVE-2022-50496",
  "lastModified": "2026-01-22T19:06:12.297",
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}

CVE-2022-50496 (GCVE-0-2022-50496)

Vulnerability from cvelistv5 – Published: 2025-10-04 15:43 – Updated: 2025-10-04 15:43

Title

dm cache: Fix UAF in destroy()

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/034cbc8d3b47a56ac…
	https://git.kernel.org/stable/c/993406104d2b28fe4…
	https://git.kernel.org/stable/c/4d20032dd90664de0…
	https://git.kernel.org/stable/c/2f097dfac7579fd84…
	https://git.kernel.org/stable/c/2b17026685a270b2b…
	https://git.kernel.org/stable/c/d2a0b298ebf83ab62…
	https://git.kernel.org/stable/c/6ac4f36910764cb51…
	https://git.kernel.org/stable/c/6a3e412c2ab131c54…
	https://git.kernel.org/stable/c/6a459d8edbdbe7b24…

Impacted products

Vendor

Product

Version

Linux

Affected: c6b4fcbad044e6fffcc75bba160e720eb8d67d17 , < 034cbc8d3b47a56acd89453c29632a9c117de09d (git)
Affected: c6b4fcbad044e6fffcc75bba160e720eb8d67d17 , < 993406104d2b28fe470126a062ad37a1e21e792e (git)
Affected: c6b4fcbad044e6fffcc75bba160e720eb8d67d17 , < 4d20032dd90664de09f2902a7ea49ae2f7771746 (git)
Affected: c6b4fcbad044e6fffcc75bba160e720eb8d67d17 , < 2f097dfac7579fd84ff98eb1d3acd41d53a485f3 (git)
Affected: c6b4fcbad044e6fffcc75bba160e720eb8d67d17 , < 2b17026685a270b2beaf1cdd9857fcedd3505c7e (git)
Affected: c6b4fcbad044e6fffcc75bba160e720eb8d67d17 , < d2a0b298ebf83ab6236f66788a3541e91ce75a70 (git)
Affected: c6b4fcbad044e6fffcc75bba160e720eb8d67d17 , < 6ac4f36910764cb510bafc4c3768544f86ca48ca (git)
Affected: c6b4fcbad044e6fffcc75bba160e720eb8d67d17 , < 6a3e412c2ab131c54945327a7676b006f000a209 (git)
Affected: c6b4fcbad044e6fffcc75bba160e720eb8d67d17 , < 6a459d8edbdbe7b24db42a5a9f21e6aa9e00c2aa (git)

Linux

Affected: 3.9
Unaffected: 0 , < 3.9 (semver)
Unaffected: 4.9.337 , ≤ 4.9.* (semver)
Unaffected: 4.14.303 , ≤ 4.14.* (semver)
Unaffected: 4.19.270 , ≤ 4.19.* (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.87 , ≤ 5.15.* (semver)
Unaffected: 6.0.18 , ≤ 6.0.* (semver)
Unaffected: 6.1.4 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-cache-target.c"
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              "version": "6.0.18",
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              "version": "6.1.4",
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      "title": "dm cache: Fix UAF in destroy()",
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    "dateReserved": "2025-10-04T15:39:19.464Z",
    "dateUpdated": "2025-10-04T15:43:47.948Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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-2022-50496

CVE-2022-50496 (GCVE-0-2022-50496)

Tags

Sightings

Nomenclature