Answer in brief
CVE-2023-52983 records a Unknown severity vulnerability in block, bfq: fix uaf for bfqq in bic_set_bfqq(). 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 | >=5533742c7cb1bc9b1f0bf401cc397d44a3a9e07a <7f77f3dab5066a7c9da73d72d1eee895ff84a8d5 || >=094f3d9314d67691cb21ba091c1b528f6e3c4893 <511c922c5bf6c8a166bea826e702336bc2424140 || >=761564d93c8265f65543acf0a576b32d66bfa26a <cb1876fc33af26d00efdd473311f1b664c77c44e || >=64dc8c732f5c2b406cc752e6aaa1bd5471159cab <b600de2d7d3a16f9007fad1bdae82a3951a26af2 || b22fd72bfebda3956efc4431b60ddfc0a51e03e0 || >=6.0.16 <6.1 | 7f77f3dab5066a7c9da73d72d1eee895ff84a8d5, 511c922c5bf6c8a166bea826e702336bc2424140, cb1876fc33af26d00efdd473311f1b664c77c44e, b600de2d7d3a16f9007fad1bdae82a3951a26af2, 6.1 |
| Linux/Linuxgeneric | >=5.15.86 <5.15.93 || >=6.1.2 <6.1.11 | 5.15.93, 6.1.11 |
Published upstream
Mar 27, 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: block, bfq: fix uaf for bfqq in bic_set_bfqq() After commit 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'"), bic->bfqq will be accessed in bic_set_bfqq(), however, in some context bic->bfqq will be freed, and bic_set_bfqq() is called with the freed bic->bfqq. Fix the problem by always freeing bfqq after bic_set_bfqq().
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2023-52983 records a Unknown severity vulnerability in block, bfq: fix uaf for bfqq in bic_set_bfqq(). 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 | >=5533742c7cb1bc9b1f0bf401cc397d44a3a9e07a <7f77f3dab5066a7c9da73d72d1eee895ff84a8d5 || >=094f3d9314d67691cb21ba091c1b528f6e3c4893 <511c922c5bf6c8a166bea826e702336bc2424140 || >=761564d93c8265f65543acf0a576b32d66bfa26a <cb1876fc33af26d00efdd473311f1b664c77c44e || >=64dc8c732f5c2b406cc752e6aaa1bd5471159cab <b600de2d7d3a16f9007fad1bdae82a3951a26af2 || b22fd72bfebda3956efc4431b60ddfc0a51e03e0 || >=6.0.16 <6.1 | 7f77f3dab5066a7c9da73d72d1eee895ff84a8d5, 511c922c5bf6c8a166bea826e702336bc2424140, cb1876fc33af26d00efdd473311f1b664c77c44e, b600de2d7d3a16f9007fad1bdae82a3951a26af2, 6.1 |
| Linux/Linuxgeneric | >=5.15.86 <5.15.93 || >=6.1.2 <6.1.11 | 5.15.93, 6.1.11 |
Published upstream
Mar 27, 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: block, bfq: fix uaf for bfqq in bic_set_bfqq() After commit 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'"), bic->bfqq will be accessed in bic_set_bfqq(), however, in some context bic->bfqq will be freed, and bic_set_bfqq() is called with the freed bic->bfqq. Fix the problem by always freeing bfqq after bic_set_bfqq().
Quoted source text, attributed separately from HOL analysis.