Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-48954.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-48954
Upstream
Published
2024-07-12T13:15:18Z
Modified
2026-04-21T04:29:42Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
CVE-2024-40969 affecting package kernel 5.15.200.1-1
Details

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

f2fs: don't set RO when shutting down f2fs

Shutdown does not check the error of thaw_super due to readonly, which causes a deadlock like below.

f2fs_ioc_shutdown(F2FS_GOING_DOWN_FULLSYNC) issue_discard_thread

  • bdev_freeze
  • freeze_super
  • f2fs_stop_checkpoint()
  • f2fs_handle_critical_error - sb_start_write
    • set RO - waiting
  • bdev_thaw
  • thaw_super_locked
    • return -EINVAL, if sb_rdonly()
  • f2fs_stop_discard_thread -> wait for kthread_stop(discard_thread);
References

Affected packages

Azure Linux:2 / kernel

Package

Name
kernel
Purl
pkg:rpm/azure-linux/kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
5.15.200.1-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-48954.json"