high7.8
CVE-2023-52983
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 …
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 5.15.86 before 5.15.93 from 6.1.2 before 6.1.11 Version 6.0.16 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/511c922c5bf6c8a166bea826e702336bc2424140
- https://git.kernel.org/stable/c/7f77f3dab5066a7c9da73d72d1eee895ff84a8d5
- https://git.kernel.org/stable/c/b600de2d7d3a16f9007fad1bdae82a3951a26af2
- https://git.kernel.org/stable/c/cb1876fc33af26d00efdd473311f1b664c77c44e