Vulnerability Details
Basic Information
| Title | CVE-2025-37859 |
|---|---|
| Type | cve |
| Published | 2025-05-09T07:16:06 |
| Last Seen | 2025-05-09T07:28:34 |
| CVSS Score | 0.0 () |
CVSS v3 Details
| Attack Vector | |
|---|---|
| Attack Complexity | |
| Privileges Required | |
| User Interaction | |
| Scope | |
| Confidentiality Impact | |
| Integrity Impact | |
| Availability Impact |
CVE Information
| CVE IDs | CVE-2025-37859 |
|---|---|
| CWE | |
| Bulletin Family | cve |
Description
page_pool: avoid infinite loop to schedule delayed worker
We noticed the kworker in page_pool_release_retry() was waken
up repeatedly and infinitely in production because of the
buggy driver causing the inflight less than 0 and warning
us in page_pool_inflight()[1].
Since the inflight value goes negative, it means we should
not expect the whole page_pool to get back to work normally.
This patch mitigates the adverse effect by not rescheduling
the kworker when detecting the inflight negative in
page_pool_release_retry().
[1]
[Mon Feb 10 20:36:11 2025] ————[ cut here ]————
[Mon Feb 10 20:36:11 2025] Negative(-51446) inflight packet-pages
…
[Mon Feb 10 20:36:11 2025] Call Trace:
[Mon Feb 10 20:36:11 2025] page_pool_release_retry+0x23/0x70
[Mon Feb 10 20:36:11 2025] process_one_work+0x1b1/0x370
[Mon Feb 10 20:36:11 2025] worker_thread+0x37/0x3a0
[Mon Feb 10 20:36:11 2025] kthread+0x11a/0x140
[Mon Feb 10 20:36:11 2025] ? process_one_work+0x370/0x370
[Mon Feb 10 20:36:11 2025] ? __kthread_cancel_work+0x40/0x40
[Mon Feb 10 20:36:11 2025] ret_from_fork+0x35/0x40
[Mon Feb 10 20:36:11 2025] —[ end trace ebffe800f33e7e34 ]—
Note: before this patch, the above calltrace would flood the
dmesg due to repeated reschedule of release_dw kworker.
Impact Assessment
| Base Score | 0.0 |
|---|---|
| Severity |