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CVE PROGRAM SOURCE RECORDUnscored

CVE-2025-37859

page_pool: avoid infinite loop to schedule delayed worker

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In 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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 05f646cb2174d1a4e032b60b99097f5c4b522616 to < c3c7c57017ce1d4b2d3788c1fc59e7e39026e158affected
  • c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 to < 9f71db4fb82deb889e0bac4a51b34daea7d506a3affected
  • c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 to < 91522aba56e9fcdf64da25ffef9b27f8fad48e0faffected
  • c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 to < 90e089a64504982f8d62f223027cb9f903781f78affected
  • c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 to < 95f17738b86fd198924d874a5639bcdc49c7e5b8affected
  • c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 to < 7204335d1991c23fc615ab76f31f175748a578e1affected
  • c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 to < e74e5aa33228c5e2cb4fc80ad103541a7b7805ecaffected
  • c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 to < 738d1812ec2e395e953258aea912ddd867d11a13affected
  • c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 to < 43130d02baa137033c25297aaae95fd0edc41654affected
  • bf22306d92ca59c59dc4aa3bab14768948193d56affected
  • 5.4.5 to < 5.4.293affected
  • 5.3.18 to < 5.4affected

Linux Linux

Default version status: affected

  • 5.5affected
  • 0 to < 5.5unaffected
  • 5.4.293 to ≤ 5.4.*unaffected
  • 5.10.237 to ≤ 5.10.*unaffected
  • 5.15.181 to ≤ 5.15.*unaffected
  • 6.1.135 to ≤ 6.1.*unaffected
  • 6.6.88 to ≤ 6.6.*unaffected
  • 6.12.24 to ≤ 6.12.*unaffected
  • 6.13.12 to ≤ 6.13.*unaffected
  • 6.14.3 to ≤ 6.14.*unaffected
  • 6.15 to ≤ *unaffected

References