GHSA-74CG-CW39-RJ4G
Vulnerability from github – Published: 2025-05-09 09:33 – Updated: 2025-11-12 21:31In the Linux kernel, the following vulnerability has been resolved:
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.
{
"affected": [],
"aliases": [
"CVE-2025-37859"
],
"database_specific": {
"cwe_ids": [
"CWE-835"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-09T07:16:06Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\npage_pool: avoid infinite loop to schedule delayed worker\n\nWe noticed the kworker in page_pool_release_retry() was waken\nup repeatedly and infinitely in production because of the\nbuggy driver causing the inflight less than 0 and warning\nus in page_pool_inflight()[1].\n\nSince the inflight value goes negative, it means we should\nnot expect the whole page_pool to get back to work normally.\n\nThis patch mitigates the adverse effect by not rescheduling\nthe kworker when detecting the inflight negative in\npage_pool_release_retry().\n\n[1]\n[Mon Feb 10 20:36:11 2025] ------------[ cut here ]------------\n[Mon Feb 10 20:36:11 2025] Negative(-51446) inflight packet-pages\n...\n[Mon Feb 10 20:36:11 2025] Call Trace:\n[Mon Feb 10 20:36:11 2025] page_pool_release_retry+0x23/0x70\n[Mon Feb 10 20:36:11 2025] process_one_work+0x1b1/0x370\n[Mon Feb 10 20:36:11 2025] worker_thread+0x37/0x3a0\n[Mon Feb 10 20:36:11 2025] kthread+0x11a/0x140\n[Mon Feb 10 20:36:11 2025] ? process_one_work+0x370/0x370\n[Mon Feb 10 20:36:11 2025] ? __kthread_cancel_work+0x40/0x40\n[Mon Feb 10 20:36:11 2025] ret_from_fork+0x35/0x40\n[Mon Feb 10 20:36:11 2025] ---[ end trace ebffe800f33e7e34 ]---\nNote: before this patch, the above calltrace would flood the\ndmesg due to repeated reschedule of release_dw kworker.",
"id": "GHSA-74cg-cw39-rj4g",
"modified": "2025-11-12T21:31:02Z",
"published": "2025-05-09T09:33:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37859"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/43130d02baa137033c25297aaae95fd0edc41654"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7204335d1991c23fc615ab76f31f175748a578e1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/738d1812ec2e395e953258aea912ddd867d11a13"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/90e089a64504982f8d62f223027cb9f903781f78"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/91522aba56e9fcdf64da25ffef9b27f8fad48e0f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/95f17738b86fd198924d874a5639bcdc49c7e5b8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9f71db4fb82deb889e0bac4a51b34daea7d506a3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c3c7c57017ce1d4b2d3788c1fc59e7e39026e158"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e74e5aa33228c5e2cb4fc80ad103541a7b7805ec"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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