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CVE-2023-52893

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CVE-2023-52893

Published: Aug 21, 2024

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: gsmi: fix null-deref in gsmi_get_variable 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.

VendorProductVersions

Linux

Linux

affected
74c5b31c6618f01079212332b2e5f6c42f2d6307 - < ee5763ef829bd923033510de6d1df7c73f085e4b
affected
74c5b31c6618f01079212332b2e5f6c42f2d6307 - < 32313c11bdc8a02c577abaf865be3664ab30410a
affected
74c5b31c6618f01079212332b2e5f6c42f2d6307 - < ffef77794fb5f1245c3249b86342bad2299accb5
affected
74c5b31c6618f01079212332b2e5f6c42f2d6307 - < ae2a9dcc8caa60b1e14671294e5ec902ea5d1dfd
affected
74c5b31c6618f01079212332b2e5f6c42f2d6307 - < eb0421d90f916dffe96b4c049ddf01c0c50620d2

+2 more versions

Linux

Linux

affected
3.0
unaffected
0 - < 3.0
unaffected
4.14.304 - <= 4.14.*
unaffected
4.19.271 - <= 4.19.*
unaffected
5.4.230 - <= 5.4.*

+4 more versions

References

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