Bug 2281322 (CVE-2023-52681) - CVE-2023-52681 kernel: efivarfs: Free s_fs_info on unmount
Summary: CVE-2023-52681 kernel: efivarfs: Free s_fs_info on unmount
Keywords:
Status: NEW
Alias: CVE-2023-52681
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2281323
Blocks: 2281749
TreeView+ depends on / blocked
 
Reported: 2024-05-18 01:25 UTC by Zack Miele
Modified: 2024-09-19 17:47 UTC (History)
49 users (show)

Fixed In Version: kernel 6.1.75, kernel 6.6.14, kernel 6.7.2, kernel 6.8
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the efivarfs filesystem in the Linux kernel, where s_fs_info is not properly freed upon unmounting. This oversight can lead to a use-after-free condition, which could be exploited by an attacker to execute arbitrary code or cause a system crash.
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Environment:
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Description Zack Miele 2024-05-18 01:25:12 UTC 
In the Linux kernel, the following vulnerability has been resolved:

efivarfs: Free s_fs_info on unmount

The Linux kernel CVE team has assigned CVE-2023-52681 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024051751-CVE-2023-52681-9f54@gregkh/T
Comment 1 Zack Miele 2024-05-18 01:25:48 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2281323]
Comment 2 Alex 2024-06-09 13:56:24 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2023-52681 is: 	SKIP	The Fixes patch not applied yet, so unlikely that actual: 5329aa5101f7	YES			NO	NO	unknown	 (where first YES/NO value means if related sources built).
Comment 3 Alex 2024-06-09 13:56:34 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2023-52681 is: 	SKIP	The Fixes patch not applied yet, so unlikely that actual: 5329aa5101f73c451bcd48deaf3f296685849d9c	YES			NO	NO	unknown	 (where first YES/NO value means if related sources built).
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