In the Linux kernel, the following vulnerability has been resolved:
nilfs2: fix potential hang in nilfs_detach_log_writer()
Syzbot has reported a potential hang in nilfs_detach_log_writer() called
during nilfs2 unmount.
Analysis revealed that this is because nilfs_segctor_sync(), which
synchronizes with the log writer thread, can be called after
nilfs_segctor_destroy() terminates that thread, as shown in the call trace
below:
nilfs_detach_log_writer
  nilfs_segctor_destroy
    nilfs_segctor_kill_thread  --> Shut down log writer thread
    flush_work
      nilfs_iput_work_func
        nilfs_dispose_list
          iput
            nilfs_evict_inode
              nilfs_transaction_commit
                nilfs_construct_segment (if inode needs sync)
                  nilfs_segctor_sync  --> Attempt to synchronize with
                                          log writer thread
                           *** DEADLOCK ***
Fix this issue by changing nilfs_segctor_sync() so that the log writer
thread returns normally without synchronizing after it terminates, and by
forcing tasks that are already waiting to complete once after the thread
terminates.
The skipped inode metadata flushout will then be processed together in the
subsequent cleanup work in nilfs_segctor_destroy().
                
            Metrics
Affected Vendors & Products
References
        History
                    Tue, 01 Apr 2025 18:45:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| First Time appeared | Linux Linux linux Kernel | |
| Weaknesses | CWE-667 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products | Linux Linux linux Kernel | 
Fri, 08 Nov 2024 19:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Metrics | cvssV3_1 
 | cvssV3_1 
 | 
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: Linux
Published: 2024-06-19T13:37:39.163Z
Updated: 2025-05-04T09:14:36.500Z
Reserved: 2024-06-18T19:36:34.928Z
Link: CVE-2024-38582
 Vulnrichment
                        Vulnrichment
                    Updated: 2024-08-02T04:12:25.658Z
 NVD
                        NVD
                    Status : Analyzed
Published: 2024-06-19T14:15:18.273
Modified: 2025-04-01T18:25:42.620
Link: CVE-2024-38582
 Redhat
                        Redhat