CVE-2025-21900

Description

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fix a deadlock when recovering state on a sillyrenamed file If the file is sillyrenamed, and slated for delete on close, it is possible for a server reboot to triggeer an open reclaim, with can again race with the application call to close(). When that happens, the call to put_nfs_open_context() can trigger a synchronous delegreturn call which deadlocks because it is not marked as privileged. Instead, ensure that the call to nfs4_inode_return_delegation_on_close() catches the delegreturn, and schedules it asynchronously.

Reserved 2024-12-29 | Published 2025-04-01 | Updated 2025-05-04 | Assigner Linux

Product status

Default status
unaffected

adb4b42d19aea91826621a8d0bac94cf2c08f8bc before 4fe4ae6c2e01d028856b73b6328b12b8945df871
affected

adb4b42d19aea91826621a8d0bac94cf2c08f8bc before f41a60bc43e7abbc636fee78bed0d74c31e738b0
affected

adb4b42d19aea91826621a8d0bac94cf2c08f8bc before 8f8df955f078e1a023ee55161935000a67651f38
affected

Default status
affected

6.11
affected

Any version before 6.11
unaffected

6.12.18
unaffected

6.13.6
unaffected

6.14
unaffected

References

git.kernel.org/...c/4fe4ae6c2e01d028856b73b6328b12b8945df871

git.kernel.org/...c/f41a60bc43e7abbc636fee78bed0d74c31e738b0

git.kernel.org/...c/8f8df955f078e1a023ee55161935000a67651f38

cve.org (CVE-2025-21900)

nvd.nist.gov (CVE-2025-21900)

Download JSON