CVE-2023-52983

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Source
https://cve.org/CVERecord?id=CVE-2023-52983
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52983.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-52983
Downstream
Related
Published
2025-03-27T16:43:21.372Z
Modified
2026-03-20T12:32:53.771338Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
block, bfq: fix uaf for bfqq in bic_set_bfqq()
Details

In the Linux kernel, the following vulnerability has been resolved:

block, bfq: fix uaf for bfqq in bicsetbfqq()

After commit 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'"), bic->bfqq will be accessed in bicsetbfqq(), however, in some context bic->bfqq will be freed, and bicsetbfqq() is called with the freed bic->bfqq.

Fix the problem by always freeing bfqq after bicsetbfqq().

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52983.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
5533742c7cb1bc9b1f0bf401cc397d44a3a9e07a
Fixed
7f77f3dab5066a7c9da73d72d1eee895ff84a8d5
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
094f3d9314d67691cb21ba091c1b528f6e3c4893
Fixed
511c922c5bf6c8a166bea826e702336bc2424140
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
761564d93c8265f65543acf0a576b32d66bfa26a
Fixed
cb1876fc33af26d00efdd473311f1b664c77c44e
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
64dc8c732f5c2b406cc752e6aaa1bd5471159cab
Fixed
b600de2d7d3a16f9007fad1bdae82a3951a26af2
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
b22fd72bfebda3956efc4431b60ddfc0a51e03e0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52983.json"