Description (CNA)
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().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 5533742c7cb1bc9b1f0bf401cc397d44a3a9e07a before 7f77f3dab5066a7c9da73d72d1eee895ff84a8d5; affected 094f3d9314d67691cb21ba091c1b528f6e3c4893 before 511c922c5bf6c8a166bea826e702336bc2424140; affected 761564d93c8265f65543acf0a576b32d66bfa26a before cb1876fc33af26d00efdd473311f1b664c77c44e; affected 64dc8c732f5c2b406cc752e6aaa1bd5471159cab before b600de2d7d3a16f9007fad1bdae82a3951a26af2; affected b22fd72bfebda3956efc4431b60ddfc0a51e03e0; affected 6.0.16 before 6.1 |
| Linux / Linux | affected 5.15.86 before 5.15.93; affected 6.1.2 before 6.1.11 |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/7f77f3dab5066a7c9da73d72d1eee895ff84a8d5
- https://git.kernel.org/stable/c/511c922c5bf6c8a166bea826e702336bc2424140
- https://git.kernel.org/stable/c/cb1876fc33af26d00efdd473311f1b664c77c44e
- https://git.kernel.org/stable/c/b600de2d7d3a16f9007fad1bdae82a3951a26af2
ADP enrichment
No English description supplied.
No references supplied.