CVE-2025-37859

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux05f646cb2174d1a4e032b60b99097f5c4b522616 < c3c7c57017ce1d4b2d3788c1fc59e7e39026e158affected
LinuxLinuxc3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 < 9f71db4fb82deb889e0bac4a51b34daea7d506a3affected
LinuxLinuxc3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 < 91522aba56e9fcdf64da25ffef9b27f8fad48e0faffected
LinuxLinuxc3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 < 90e089a64504982f8d62f223027cb9f903781f78affected
LinuxLinuxc3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 < 95f17738b86fd198924d874a5639bcdc49c7e5b8affected
LinuxLinuxc3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 < 7204335d1991c23fc615ab76f31f175748a578e1affected
LinuxLinuxc3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 < e74e5aa33228c5e2cb4fc80ad103541a7b7805ecaffected
LinuxLinuxc3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 < 738d1812ec2e395e953258aea912ddd867d11a13affected
LinuxLinuxc3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 < 43130d02baa137033c25297aaae95fd0edc41654affected
LinuxLinuxbf22306d92ca59c59dc4aa3bab14768948193d56affected
LinuxLinux5.4.5 < 5.4.293affected
LinuxLinux5.3.18 < 5.4affected
LinuxLinux5.5affected
LinuxLinux0 < 5.5unaffected
LinuxLinux5.4.293 <= 5.4.*unaffected
LinuxLinux5.10.237 <= 5.10.*unaffected
LinuxLinux5.15.181 <= 5.15.*unaffected
LinuxLinux6.1.135 <= 6.1.*unaffected
LinuxLinux6.6.88 <= 6.6.*unaffected
LinuxLinux6.12.24 <= 6.12.*unaffected
LinuxLinux6.13.12 <= 6.13.*unaffected
LinuxLinux6.14.3 <= 6.14.*unaffected
LinuxLinux6.15 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

References