CVE-2022-50250
published 2025-09-15CVE-2022-50250: In the Linux kernel, the following vulnerability has been resolved: regulator: core: fix use_count leakage when handling boot-on I found a use_count leakage…
PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.15%
4.4th percentile
In the Linux kernel, the following vulnerability has been resolved:
regulator: core: fix use_count leakage when handling boot-on
I found a use_count leakage towards supply regulator of rdev with
boot-on option.
┌───────────────────┐ ┌───────────────────┐
│ regulator_dev A │ │ regulator_dev B │
│ (boot-on) │ │ (boot-on) │
│ use_count=0 │◀──supply──│ use_count=1 │
│ │ │ │
└───────────────────┘ └───────────────────┘
In case of rdev(A) configured with `regulator-boot-on', the use_count
of supplying regulator(B) will increment inside
regulator_enable(rdev->supply).
Thus, B will acts like always-on, and further balanced
regulator_enable/disable cannot actually disable it anymore.
However, B was also configured with `regulator-boot-on', we wish it
could be disabled afterwards.
Affected
21 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.4-1 (bookworm) | linux 6.1.4-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 089b3f61ecfc43ca4ea26d595e1d31ead6de3f7b < 4b737246ff50f810d6ab4be13c1388a07f0c14b1 | 4b737246ff50f810d6ab4be13c1388a07f0c14b1 |
| linux | linux | >= 089b3f61ecfc43ca4ea26d595e1d31ead6de3f7b < feb847e6591e8c7a09cc39721cc9ca74fd9a5d80 | feb847e6591e8c7a09cc39721cc9ca74fd9a5d80 |
| linux | linux | >= 089b3f61ecfc43ca4ea26d595e1d31ead6de3f7b < 4dd6e1cc9c7403f1ee1b7eee85bc31b797ae8347 | 4dd6e1cc9c7403f1ee1b7eee85bc31b797ae8347 |
| linux | linux | >= 089b3f61ecfc43ca4ea26d595e1d31ead6de3f7b < bc6c381df5793ebcf32db88a3e65acf7870379fc | bc6c381df5793ebcf32db88a3e65acf7870379fc |
| linux | linux | >= 089b3f61ecfc43ca4ea26d595e1d31ead6de3f7b < 0591b14ce0398125439c759f889647369aa616a0 | 0591b14ce0398125439c759f889647369aa616a0 |
| linux | linux | >= 4.19.226 < 4.19.270 | 4.19.270 |
| linux | linux | >= 5.4.7 < 5.4.229 | 5.4.229 |
| linux | linux | >= dc1b1d7faf616ed663d0bba9be5abb4d1ed35d01 < dc3391d49479bc2bf8a2b88dbf86fdd800882fee | dc3391d49479bc2bf8a2b88dbf86fdd800882fee |
| linux | linux | >= f44b07472f29ae313ce875dc7b9c75b100c608b8 < 5bfc53df288e8ea54ca6866fb92034214940183f | 5bfc53df288e8ea54ca6866fb92034214940183f |
| linux | linux_kernel | < 4.19.270 | 4.19.270 |
| linux | linux_kernel | >= 0 < 5.10.178-1 | 5.10.178-1 |
| linux | linux_kernel | >= 0 < 6.1.4-1 | 6.1.4-1 |
| linux | linux_kernel | >= 0 < 6.1.4-1 | 6.1.4-1 |
| linux | linux_kernel | >= 0 < 6.1.4-1 | 6.1.4-1 |
| linux | linux_kernel | >= 4.20 < 5.4.229 | 5.4.229 |
| linux | linux_kernel | >= 5.11 < 5.15.86 | 5.15.86 |
| linux | linux_kernel | >= 5.16 < 6.0.16 | 6.0.16 |
| linux | linux_kernel | >= 5.5 < 5.10.163 | 5.10.163 |
| linux | linux_kernel | >= 6.1 < 6.1.2 | 6.1.2 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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Red Hat
kernel: regulator: core: fix use_count leakage when handling boot-on
vendor_redhat·2025-09-15·CVSS 5.5
CVE-2022-50250 [MEDIUM] CWE-772 kernel: regulator: core: fix use_count leakage when handling boot-on
kernel: regulator: core: fix use_count leakage when handling boot-on
In the Linux kernel, the following vulnerability has been resolved:
regulator: core: fix use_count leakage when handling boot-on
I found a use_count leakage towards supply regulator of rdev with
boot-on option.
┌───────────────────┐ ┌───────────────────┐
│ regulator_dev A │ │ regulator_dev B │
│ (boot-on) │ │ (boot-on) │
│ use_count=0 │◀──supply──│ use_count=1 │
│ │ │ │
└───────────────────┘ └───────────────────┘
In case of rdev(A) configured with `regulator-boot-on', the use_count
of supplying regulator(B) will increment inside
regulator_enable(rdev->supply).
Thus, B will acts like always-on, and further balanced
regulator_enable/disable cannot actually disable it anymore.
However, B was also configured with `regulator-
Debian
CVE-2022-50250: linux - In the Linux kernel, the following vulnerability has been resolved: regulator: ...
vendor_debian·2022·CVSS 5.5
CVE-2022-50250 [MEDIUM] CVE-2022-50250: linux - In the Linux kernel, the following vulnerability has been resolved: regulator: ...
In the Linux kernel, the following vulnerability has been resolved: regulator: core: fix use_count leakage when handling boot-on I found a use_count leakage towards supply regulator of rdev with boot-on option. ┌───────────────────┐ ┌───────────────────┐ │ regulator_dev A │ │ regulator_dev B │ │ (boot-on) │ │ (boot-on) │ │ use_count=0 │◀──supply──│ use_count=1 │ │ │ │ │ └───────────────────┘ └───────────────────┘ In case of rdev(A) configured with `regulator-boot-on', the use_count of supplying regulator(B) will increment inside regulator_enable(rdev->supply). Thus, B will acts like always-on, and further balanced regulator_enable/disable cannot actually disable it anymore. However, B was also configured with `regulator-boot-on', we wish it could be disabled afterwards.
Scope: local
bookwo
GHSA
GHSA-v49x-f2vh-6pj7: In the Linux kernel, the following vulnerability has been resolved:
regulator: core: fix use_count leakage when handling boot-on
I found a use_count
ghsa_unreviewed·2025-09-15
CVE-2022-50250 [MEDIUM] GHSA-v49x-f2vh-6pj7: In the Linux kernel, the following vulnerability has been resolved:
regulator: core: fix use_count leakage when handling boot-on
I found a use_count
In the Linux kernel, the following vulnerability has been resolved:
regulator: core: fix use_count leakage when handling boot-on
I found a use_count leakage towards supply regulator of rdev with
boot-on option.
┌───────────────────┐ ┌───────────────────┐
│ regulator_dev A │ │ regulator_dev B │
│ (boot-on) │ │ (boot-on) │
│ use_count=0 │◀──supply──│ use_count=1 │
│ │ │ │
└───────────────────┘ └───────────────────┘
In case of rdev(A) configured with `regulator-boot-on', the use_count
of supplying regulator(B) will increment inside
regulator_enable(rdev->supply).
Thus, B will acts like always-on, and further balanced
regulator_enable/disable cannot actually disable it anymore.
However, B was also configured with `regulator-boot-on', we wish it
could be disabled afterwards.
OSV
CVE-2022-50250: In the Linux kernel, the following vulnerability has been resolved: regulator: core: fix use_count leakage when handling boot-on I found a use_count l
osv·2025-09-15·CVSS 5.5
CVE-2022-50250 [MEDIUM] CVE-2022-50250: In the Linux kernel, the following vulnerability has been resolved: regulator: core: fix use_count leakage when handling boot-on I found a use_count l
In the Linux kernel, the following vulnerability has been resolved: regulator: core: fix use_count leakage when handling boot-on I found a use_count leakage towards supply regulator of rdev with boot-on option. ┌───────────────────┐ ┌───────────────────┐ │ regulator_dev A │ │ regulator_dev B │ │ (boot-on) │ │ (boot-on) │ │ use_count=0 │◀──supply──│ use_count=1 │ │ │ │ │ └───────────────────┘ └───────────────────┘ In case of rdev(A) configured with `regulator-boot-on', the use_count of supplying regulator(B) will increment inside regulator_enable(rdev->supply). Thus, B will acts like always-on, and further balanced regulator_enable/disable cannot actually disable it anymore. However, B was also configured with `regulator-boot-on', we wish it could be disabled afterwards.
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/0591b14ce0398125439c759f889647369aa616a0https://git.kernel.org/stable/c/4b737246ff50f810d6ab4be13c1388a07f0c14b1https://git.kernel.org/stable/c/4dd6e1cc9c7403f1ee1b7eee85bc31b797ae8347https://git.kernel.org/stable/c/5bfc53df288e8ea54ca6866fb92034214940183fhttps://git.kernel.org/stable/c/bc6c381df5793ebcf32db88a3e65acf7870379fchttps://git.kernel.org/stable/c/dc3391d49479bc2bf8a2b88dbf86fdd800882feehttps://git.kernel.org/stable/c/feb847e6591e8c7a09cc39721cc9ca74fd9a5d80
2025-09-15
Published