Answer in brief
CVE-2026-46021 records a Medium severity (CVSS 5.5) vulnerability in thermal: core: Fix thermal zone governor cleanup issues. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-46021 records a Medium severity (CVSS 5.5) vulnerability in thermal: core: Fix thermal zone governor cleanup issues. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <a172fa18bc370b776ac1510abb0dcb50a7a35fac || >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <8e563d8db50f303171aceb79eec0807e7ba06951 || >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <d4eb861adde5ce22e459fbd29366f47bb2167977 || >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <37a430a2d4e66ec8238da6c7f7e48809bf265e13 || >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <f412e541d25a3dfaf3d53e012ade6ff03cae8a45 || >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <75f8f3c3e09122270986de9d7aa347d701676761 || >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <64d4ebf91d082034bbc5ae3ba2d7fd800bc02d06 || >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <41ff66baf81c6541f4f985dd7eac4494d03d9440 | a172fa18bc370b776ac1510abb0dcb50a7a35fac, 8e563d8db50f303171aceb79eec0807e7ba06951, d4eb861adde5ce22e459fbd29366f47bb2167977, 37a430a2d4e66ec8238da6c7f7e48809bf265e13, f412e541d25a3dfaf3d53e012ade6ff03cae8a45, 75f8f3c3e09122270986de9d7aa347d701676761, 64d4ebf91d082034bbc5ae3ba2d7fd800bc02d06, 41ff66baf81c6541f4f985dd7eac4494d03d9440 |
| Linux/Linuxgeneric | 4.2 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 19, 2026
In the Linux kernel, the following vulnerability has been resolved: thermal: core: Fix thermal zone governor cleanup issues If thermal_zone_device_register_with_trips() fails after adding a thermal governor to the thermal zone being registered, the governor is not removed from it as appropriate which may lead to a memory leak. In turn, thermal_zone_device_unregister() calls thermal_set_governor() without acquiring the thermal zone lock beforehand which may race with a governor update via sysfs and may lead to a use-after-free in that case. Address these issues by adding two thermal_set_governor() calls, one to thermal_release() to remove the governor from the given thermal zone, and one to the thermal zone registration error path to cover failures preceding the thermal zone device registration.
Quoted source text, attributed separately from HOL analysis.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <a172fa18bc370b776ac1510abb0dcb50a7a35fac || >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <8e563d8db50f303171aceb79eec0807e7ba06951 || >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <d4eb861adde5ce22e459fbd29366f47bb2167977 || >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <37a430a2d4e66ec8238da6c7f7e48809bf265e13 || >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <f412e541d25a3dfaf3d53e012ade6ff03cae8a45 || >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <75f8f3c3e09122270986de9d7aa347d701676761 || >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <64d4ebf91d082034bbc5ae3ba2d7fd800bc02d06 || >=e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8 <41ff66baf81c6541f4f985dd7eac4494d03d9440 | a172fa18bc370b776ac1510abb0dcb50a7a35fac, 8e563d8db50f303171aceb79eec0807e7ba06951, d4eb861adde5ce22e459fbd29366f47bb2167977, 37a430a2d4e66ec8238da6c7f7e48809bf265e13, f412e541d25a3dfaf3d53e012ade6ff03cae8a45, 75f8f3c3e09122270986de9d7aa347d701676761, 64d4ebf91d082034bbc5ae3ba2d7fd800bc02d06, 41ff66baf81c6541f4f985dd7eac4494d03d9440 |
| Linux/Linuxgeneric | 4.2 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 19, 2026
In the Linux kernel, the following vulnerability has been resolved: thermal: core: Fix thermal zone governor cleanup issues If thermal_zone_device_register_with_trips() fails after adding a thermal governor to the thermal zone being registered, the governor is not removed from it as appropriate which may lead to a memory leak. In turn, thermal_zone_device_unregister() calls thermal_set_governor() without acquiring the thermal zone lock beforehand which may race with a governor update via sysfs and may lead to a use-after-free in that case. Address these issues by adding two thermal_set_governor() calls, one to thermal_release() to remove the governor from the given thermal zone, and one to the thermal zone registration error path to cover failures preceding the thermal zone device registration.
Quoted source text, attributed separately from HOL analysis.