CVE-2026-93219: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: 12e1480bcb4920c1b02b3793cb48756497919a60 преди 0cc4b14d7401d50e53a01f1554147ee075ee6943; 12e1480bcb4920c1b02b3793cb48756497919a60 преди 53a3bc024b8e5d284468cce84957cded5f859f98; 12e1480bcb4920c1b02b3793cb48756497919a60 преди 753a220084dfc4d737f2ab9eaddc9a01a397edd7; 12e1480bcb4920c1b02b3793cb48756497919a60 преди ebba4d0aeba0e8eb3a9676380fc2652de8ab1c44; 12e1480bcb4920c1b02b3793cb48756497919a60 преди 151eb52f8712017c8f7b00bb2305e8916cb9e3dc; 12e1480bcb4920c1b02b3793cb48756497919a60 преди bf38be01d43c4e4ca903aff7236d8486a950a252; 12e1480bcb4920c1b02b3793cb48756497919a60 преди f0efafcdf6eec1f3361bfd8c811420198f55c8bb; 12e1480bcb4920c1b02b3793cb48756497919a60 преди d21808328225ab8cee46885bf9a0dffcefbe630e
• Linux Linux: 3.13; преди 3.13; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.109 до 6.12.*; 6.18.50 до 6.18.*; 7.2.4 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-93219
• https://nvd.nist.gov/vuln/detail/CVE-2026-93219
• https://git.kernel.org/stable/c/0cc4b14d7401d50e53a01f1554147ee075ee6943
• https://git.kernel.org/stable/c/53a3bc024b8e5d284468cce84957cded5f859f98
• https://git.kernel.org/stable/c/753a220084dfc4d737f2ab9eaddc9a01a397edd7
• https://git.kernel.org/stable/c/ebba4d0aeba0e8eb3a9676380fc2652de8ab1c44
• https://git.kernel.org/stable/c/151eb52f8712017c8f7b00bb2305e8916cb9e3dc
• https://git.kernel.org/stable/c/bf38be01d43c4e4ca903aff7236d8486a950a252
• https://git.kernel.org/stable/c/f0efafcdf6eec1f3361bfd8c811420198f55c8bb
• https://git.kernel.org/stable/c/d21808328225ab8cee46885bf9a0dffcefbe630e