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CVE-2023-52983

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CVE-2023-52983

Published: Mar 27, 2025

Modified: May 23, 2026

PUBLISHED

Description

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().

VendorProductVersions

Linux

Linux

affected
5533742c7cb1bc9b1f0bf401cc397d44a3a9e07a - < 7f77f3dab5066a7c9da73d72d1eee895ff84a8d5
affected
094f3d9314d67691cb21ba091c1b528f6e3c4893 - < 511c922c5bf6c8a166bea826e702336bc2424140
affected
761564d93c8265f65543acf0a576b32d66bfa26a - < cb1876fc33af26d00efdd473311f1b664c77c44e
affected
64dc8c732f5c2b406cc752e6aaa1bd5471159cab - < b600de2d7d3a16f9007fad1bdae82a3951a26af2
affected
b22fd72bfebda3956efc4431b60ddfc0a51e03e0

+1 more versions

Linux

Linux

affected
5.15.86 - < 5.15.93
affected
6.1.2 - < 6.1.11

References

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