Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2024-40969

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
12/07/2024
Last modified:
09/09/2024

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> f2fs: don&amp;#39;t set RO when shutting down f2fs<br /> <br /> Shutdown does not check the error of thaw_super due to readonly, which<br /> causes a deadlock like below.<br /> <br /> f2fs_ioc_shutdown(F2FS_GOING_DOWN_FULLSYNC) issue_discard_thread<br /> - bdev_freeze<br /> - freeze_super<br /> - f2fs_stop_checkpoint()<br /> - f2fs_handle_critical_error - sb_start_write<br /> - set RO - waiting<br /> - bdev_thaw<br /> - thaw_super_locked<br /> - return -EINVAL, if sb_rdonly()<br /> - f2fs_stop_discard_thread<br /> -&gt; wait for kthread_stop(discard_thread);

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.6.36 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.9.7 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools