CVE-2026-93219

CVE CVE-2026-93219EUVD EUVD-2026-85948Published 2026-09-24T15:10:42.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: clocksource/drivers/timer-sun4i: Advertise a real minimum delta sun4i_clkevt_next_event() compensates for the timer stop/start synchronization delay by programming evt - TIMER_SYNC_TICKS into the hardware interval register. The clockevent device currently advertises TIMER_SYNC_TICKS as min_delta_ticks, so the clockevents core is allowed to call set_next_event() with evt == TIMER_SYNC_TICKS. That programs a zero-tick interval. With oneshot/highres/nohz timer operation this can leave the next event stuck, which was observed as a boot hang on Allwinner D1 after the clockevents core started reusing forced minimum-delta events. Advertise one extra tick instead, so the smallest event accepted by the core still programs at least one hardware tick after the synchronization compensation.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 12e1480bcb4920c1b02b3793cb48756497919a60 <753a220084dfc4d737f2ab9eaddc9a01a397edd7; 12e1480bcb4920c1b02b3793cb48756497919a60 <151eb52f8712017c8f7b00bb2305e8916cb9e3dc; patch: 0; 12e1480bcb4920c1b02b3793cb48756497919a60 <d21808328225ab8cee46885bf9a0dffcefbe630e; patch: 7.3-rc1; patch: 6.18.50; 3.13; patch: 6.6.157; patch: 6.1.188; patch: 5.15.221; 12e1480bcb4920c1b02b3793cb48756497919a60 <bf38be01d43c4e4ca903aff7236d8486a950a252; 12e1480bcb4920c1b02b3793cb48756497919a60 <0cc4b14d7401d50e53a01f1554147ee075ee6943; patch: 6.12.109; patch: 5.10.270; 12e1480bcb4920c1b02b3793cb48756497919a60 <53a3bc024b8e5d284468cce84957cded5f859f98; patch: 7.2.4; 12e1480bcb4920c1b02b3793cb48756497919a60 <ebba4d0aeba0e8eb3a9676380fc2652de8ab1c44; 12e1480bcb4920c1b02b3793cb48756497919a60 <f0efafcdf6eec1f3361bfd8c811420198f55c8bb

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

Does this concern one of your customers?

This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.

Try it for 28 days

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.