CVE-2023-53111

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Source
https://cve.org/CVERecord?id=CVE-2023-53111
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53111.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-53111
Downstream
Related
Published
2025-05-02T15:55:51.029Z
Modified
2026-03-12T03:27:59.912905Z
Summary
loop: Fix use-after-free issues
Details

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

loop: Fix use-after-free issues

doreqfilebacked() calls blkmqcompleterequest() synchronously or asynchronously when using asynchronous I/O unless memory allocation fails. Hence, modify loophandlecmd() such that it does not dereference 'cmd' nor 'rq' after doreq_filebacked() finished unless we are sure that the request has not yet been completed. This patch fixes the following kernel crash:

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000054 Call trace: cssput.42938+0x1c/0x1ac loopprocesswork+0xc8c/0xfd4 looprootcgworkfn+0x24/0x34 processonework+0x244/0x558 workerthread+0x400/0x8fc kthread+0x16c/0x1e0 retfromfork+0x10/0x20

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53111.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
bc07c10a3603a5ab3ef01ba42b3d41f9ac63d1b6
Fixed
407badf73ec9fb0d5744bf2ca1745c1818aa222f
Fixed
e3fda704903f6d1fc351412f1bc6620333959ada
Fixed
6917395c4667cfb607ed8bf1826205a59414657c
Fixed
9b0cb770f5d7b1ff40bea7ca385438ee94570eec

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53111.json"