Vulnerability-Lookup

FKIE_CVE-2026-46270

Vulnerability from fkie_nvd - Published: 2026-06-03 18:16 - Updated: 2026-06-09 19:52

Severity

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

Summary

In the Linux kernel, the following vulnerability has been resolved: power: supply: rt9455: Fix use-after-free in power_supply_changed() Using the `devm_` variant for requesting IRQ _before_ the `devm_` variant for allocating/registering the `power_supply` handle, means that the `power_supply` handle will be deallocated/unregistered _before_ the interrupt handler (since `devm_` naturally deallocates in reverse allocation order). This means that during removal, there is a race condition where an interrupt can fire just _after_ the `power_supply` handle has been freed, *but* just _before_ the corresponding unregistration of the IRQ handler has run. This will lead to the IRQ handler calling `power_supply_changed()` with a freed `power_supply` handle. Which usually crashes the system or otherwise silently corrupts the memory... Note that there is a similar situation which can also happen during `probe()`; the possibility of an interrupt firing _before_ registering the `power_supply` handle. This would then lead to the nasty situation of using the `power_supply` handle *uninitialized* in `power_supply_changed()`. Fix this racy use-after-free by making sure the IRQ is requested _after_ the registration of the `power_supply` handle.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2178dc65d45e2f7bcaa8af8d80d100419bdab251	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/62d753b916bd500bb269b7078cdab73198ab4718	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/64e15155095f39f4dec9b4659da1238ef8fc54d4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/721449a15170fc5f028a7576d7f65b9f60d53482	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a39f8f06216f73ef40e71e2fe4ad071964c1fd36	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/af261f218a7606f93d2c786353d60bb4feb56ef0	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d4e2e3c3caa26b93aa9f36d0a6824b584e2a8dfc	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e2febe375e5ea5afed92f4cd9711bde8f24ee6d2	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	*

JSON

To clipboard

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}

CVE-2026-46270 (GCVE-0-2026-46270)

Vulnerability from cvelistv5 – Published: 2026-06-03 15:50 – Updated: 2026-06-05 06:06

Title

power: supply: rt9455: Fix use-after-free in power_supply_changed()

Summary

Severity

8.4 (High)


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

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/d4e2e3c3caa26b93a…
https://git.kernel.org/stable/c/62d753b916bd500bb…
https://git.kernel.org/stable/c/a39f8f06216f73ef4…
https://git.kernel.org/stable/c/af261f218a7606f93…
https://git.kernel.org/stable/c/2178dc65d45e2f7bc…
https://git.kernel.org/stable/c/64e15155095f39f4d…
https://git.kernel.org/stable/c/721449a15170fc5f0…
https://git.kernel.org/stable/c/e2febe375e5ea5afe…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e86d69dd786e94046b8f5be7df1b9a8226a40b2a , < d4e2e3c3caa26b93aa9f36d0a6824b584e2a8dfc (git) Affected: e86d69dd786e94046b8f5be7df1b9a8226a40b2a , < 62d753b916bd500bb269b7078cdab73198ab4718 (git) Affected: e86d69dd786e94046b8f5be7df1b9a8226a40b2a , < a39f8f06216f73ef40e71e2fe4ad071964c1fd36 (git) Affected: e86d69dd786e94046b8f5be7df1b9a8226a40b2a , < af261f218a7606f93d2c786353d60bb4feb56ef0 (git) Affected: e86d69dd786e94046b8f5be7df1b9a8226a40b2a , < 2178dc65d45e2f7bcaa8af8d80d100419bdab251 (git) Affected: e86d69dd786e94046b8f5be7df1b9a8226a40b2a , < 64e15155095f39f4dec9b4659da1238ef8fc54d4 (git) Affected: e86d69dd786e94046b8f5be7df1b9a8226a40b2a , < 721449a15170fc5f028a7576d7f65b9f60d53482 (git) Affected: e86d69dd786e94046b8f5be7df1b9a8226a40b2a , < e2febe375e5ea5afed92f4cd9711bde8f24ee6d2 (git)
Linux	Linux	Affected: 4.2 Unaffected: 0 , < 4.2 (semver) Unaffected: 5.10.252 , ≤ 5.10.* (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: 6.18.14 , ≤ 6.18.* (semver) Unaffected: 6.19.4 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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-2026-46270

CVE-2026-46270 (GCVE-0-2026-46270)

Tags

Sightings

Nomenclature