Answer in brief
CVE-2026-93219 records a Unknown severity vulnerability in clocksource/drivers/timer-sun4i: Advertise a real minimum delta. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=12e1480bcb4920c1b02b3793cb48756497919a60 <0cc4b14d7401d50e53a01f1554147ee075ee6943 || >=12e1480bcb4920c1b02b3793cb48756497919a60 <53a3bc024b8e5d284468cce84957cded5f859f98 || >=12e1480bcb4920c1b02b3793cb48756497919a60 <753a220084dfc4d737f2ab9eaddc9a01a397edd7 || >=12e1480bcb4920c1b02b3793cb48756497919a60 <ebba4d0aeba0e8eb3a9676380fc2652de8ab1c44 || >=12e1480bcb4920c1b02b3793cb48756497919a60 <151eb52f8712017c8f7b00bb2305e8916cb9e3dc || >=12e1480bcb4920c1b02b3793cb48756497919a60 <bf38be01d43c4e4ca903aff7236d8486a950a252 || >=12e1480bcb4920c1b02b3793cb48756497919a60 <f0efafcdf6eec1f3361bfd8c811420198f55c8bb || >=12e1480bcb4920c1b02b3793cb48756497919a60 <d21808328225ab8cee46885bf9a0dffcefbe630e | 0cc4b14d7401d50e53a01f1554147ee075ee6943, 53a3bc024b8e5d284468cce84957cded5f859f98, 753a220084dfc4d737f2ab9eaddc9a01a397edd7, ebba4d0aeba0e8eb3a9676380fc2652de8ab1c44, 151eb52f8712017c8f7b00bb2305e8916cb9e3dc, bf38be01d43c4e4ca903aff7236d8486a950a252, f0efafcdf6eec1f3361bfd8c811420198f55c8bb, d21808328225ab8cee46885bf9a0dffcefbe630e |
| Linux/Linuxgeneric | 3.13 | Not reported |
Published upstream
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 25, 2026
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.
Quoted source text, attributed separately from HOL analysis.