CVE-2023-52893

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Source
https://cve.org/CVERecord?id=CVE-2023-52893
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52893.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-52893
Downstream
Related
Published
2024-08-21T06:10:33.043Z
Modified
2026-03-20T12:32:51.509976Z
Summary
gsmi: fix null-deref in gsmi_get_variable
Details

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

gsmi: fix null-deref in gsmigetvariable

We can get EFI variables without fetching the attribute, so we must allow for that in gsmi.

commit 859748255b43 ("efi: pstore: Omit efivars caching EFI varstore access layer") added a new get_variable call with attr=NULL, which triggers panic in gsmi.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52893.json",
    "cna_assigner": "Linux"
}
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
74c5b31c6618f01079212332b2e5f6c42f2d6307
Fixed
ee5763ef829bd923033510de6d1df7c73f085e4b
Fixed
32313c11bdc8a02c577abaf865be3664ab30410a
Fixed
ffef77794fb5f1245c3249b86342bad2299accb5
Fixed
ae2a9dcc8caa60b1e14671294e5ec902ea5d1dfd
Fixed
eb0421d90f916dffe96b4c049ddf01c0c50620d2
Fixed
6646d769fdb0ce4318ef9afd127f8526d1ca8393
Fixed
a769b05eeed7accc4019a1ed9799dd72067f1ce8

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52893.json"