Answer in brief
CVE-2022-49410 records a Unknown severity vulnerability in tracing: Fix potential double free in create_var_ref(). 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-2022-49410 records a Unknown severity vulnerability in tracing: Fix potential double free in create_var_ref(). 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.
A CVSS score is not reported in the current record. 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 | >=067fe038e70f6e64960d26a79c4df5f1413d0f13 <f8b383f83cb573152c577eca1ef101e89995b72a || >=067fe038e70f6e64960d26a79c4df5f1413d0f13 <c27f744ceefadc7bbeb14233b6abc150ced617d2 || >=067fe038e70f6e64960d26a79c4df5f1413d0f13 <058cb6d86b9789377216c936506b346aaa1eb581 || >=067fe038e70f6e64960d26a79c4df5f1413d0f13 <37443b3508b8cce6832f8d25cb4550b2f7801f50 || >=067fe038e70f6e64960d26a79c4df5f1413d0f13 <4fdfb15e08598711dbf50daf56a33965232daf0e || >=067fe038e70f6e64960d26a79c4df5f1413d0f13 <bd83ff3bbfb003832481c9bff999d12385f396ae || >=067fe038e70f6e64960d26a79c4df5f1413d0f13 <99696a2592bca641eb88cc9a80c90e591afebd0f | f8b383f83cb573152c577eca1ef101e89995b72a, c27f744ceefadc7bbeb14233b6abc150ced617d2, 058cb6d86b9789377216c936506b346aaa1eb581, 37443b3508b8cce6832f8d25cb4550b2f7801f50, 4fdfb15e08598711dbf50daf56a33965232daf0e, bd83ff3bbfb003832481c9bff999d12385f396ae, 99696a2592bca641eb88cc9a80c90e591afebd0f |
| Linux/Linuxgeneric | 4.17 | Not reported |
Published upstream
Feb 26, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: tracing: Fix potential double free in create_var_ref() In create_var_ref(), init_var_ref() is called to initialize the fields of variable ref_field, which is allocated in the previous function call to create_hist_field(). Function init_var_ref() allocates the corresponding fields such as ref_field->system, but frees these fields when the function encounters an error. The caller later calls destroy_hist_field() to conduct error handling, which frees the fields and the variable itself. This results in double free of the fields which are already freed in the previous function. Fix this by storing NULL to the corresponding fields when they are freed in init_var_ref().
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. 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 | >=067fe038e70f6e64960d26a79c4df5f1413d0f13 <f8b383f83cb573152c577eca1ef101e89995b72a || >=067fe038e70f6e64960d26a79c4df5f1413d0f13 <c27f744ceefadc7bbeb14233b6abc150ced617d2 || >=067fe038e70f6e64960d26a79c4df5f1413d0f13 <058cb6d86b9789377216c936506b346aaa1eb581 || >=067fe038e70f6e64960d26a79c4df5f1413d0f13 <37443b3508b8cce6832f8d25cb4550b2f7801f50 || >=067fe038e70f6e64960d26a79c4df5f1413d0f13 <4fdfb15e08598711dbf50daf56a33965232daf0e || >=067fe038e70f6e64960d26a79c4df5f1413d0f13 <bd83ff3bbfb003832481c9bff999d12385f396ae || >=067fe038e70f6e64960d26a79c4df5f1413d0f13 <99696a2592bca641eb88cc9a80c90e591afebd0f | f8b383f83cb573152c577eca1ef101e89995b72a, c27f744ceefadc7bbeb14233b6abc150ced617d2, 058cb6d86b9789377216c936506b346aaa1eb581, 37443b3508b8cce6832f8d25cb4550b2f7801f50, 4fdfb15e08598711dbf50daf56a33965232daf0e, bd83ff3bbfb003832481c9bff999d12385f396ae, 99696a2592bca641eb88cc9a80c90e591afebd0f |
| Linux/Linuxgeneric | 4.17 | Not reported |
Published upstream
Feb 26, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: tracing: Fix potential double free in create_var_ref() In create_var_ref(), init_var_ref() is called to initialize the fields of variable ref_field, which is allocated in the previous function call to create_hist_field(). Function init_var_ref() allocates the corresponding fields such as ref_field->system, but frees these fields when the function encounters an error. The caller later calls destroy_hist_field() to conduct error handling, which frees the fields and the variable itself. This results in double free of the fields which are already freed in the previous function. Fix this by storing NULL to the corresponding fields when they are freed in init_var_ref().
Quoted source text, attributed separately from HOL analysis.