CVE-2023-52983 (GCVE-0-2023-52983)

Vulnerability from cvelistv5 – Published: 2025-03-27 16:43 – Updated: 2025-05-04 12:50
VLAI?
Title
block, bfq: fix uaf for bfqq in bic_set_bfqq()
Summary
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().
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5533742c7cb1bc9b1f0bf401cc397d44a3a9e07a , < 7f77f3dab5066a7c9da73d72d1eee895ff84a8d5 (git)
Affected: 094f3d9314d67691cb21ba091c1b528f6e3c4893 , < 511c922c5bf6c8a166bea826e702336bc2424140 (git)
Affected: 761564d93c8265f65543acf0a576b32d66bfa26a , < cb1876fc33af26d00efdd473311f1b664c77c44e (git)
Affected: 64dc8c732f5c2b406cc752e6aaa1bd5471159cab , < b600de2d7d3a16f9007fad1bdae82a3951a26af2 (git)
Affected: b22fd72bfebda3956efc4431b60ddfc0a51e03e0 (git)
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    Linux Linux Affected: 5.15.86 , < 5.15.93 (semver)
Affected: 6.1.2 , < 6.1.11 (semver)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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