uvm_fault: upageflttrap

Status: upstream: reported on 2026/08/11 02:27
Reported-by: syzbot+d777299a072dec9bb4cb@syzkaller.appspotmail.com
First crash: 9d05h, last: 1h33m

Sample crash report:
uvm_fault(fffff1006ce869a0,406d0791000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:650
upageflttrap(ffff80003c3c8720,406d0791000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:194
usertrap(ffff80003c3c8720) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:648
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7ed48fe4d5d0, count: -8

Crashes (13):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/20 06:53 openbsd 1a498b6f2b58 1e72964b .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: upageflttrap
2026/08/17 16:58 openbsd 3b8d610e537f 905244d6 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: upageflttrap
2026/08/17 01:16 openbsd ae3832a13713 746171ee .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: upageflttrap
2026/08/15 09:17 openbsd a536f3ad0739 746171ee .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: upageflttrap
2026/08/11 10:03 openbsd 99858244924d 557a89d3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: upageflttrap
2026/08/11 02:27 openbsd b56428e2942e 508909ea .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore uvm_fault: upageflttrap
2026/08/17 22:27 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan ba31e17d73ed 1e72964b .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan uvm_fault: upageflttrap
2026/08/16 18:09 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan ba31e17d73ed 746171ee .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan uvm_fault: upageflttrap
2026/08/15 03:27 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan f02e55361321 746171ee .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan uvm_fault: upageflttrap
2026/08/14 10:41 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 3be50a05e816 6f9b3e89 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan uvm_fault: upageflttrap
2026/08/14 04:58 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 3be50a05e816 b13552fe .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan uvm_fault: upageflttrap
2026/08/14 01:06 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan 3be50a05e816 b13552fe .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan uvm_fault: upageflttrap
2026/08/12 18:41 https://github.com/blackgnezdo/openbsd-src.git syzbot-kasan b7bfd6278925 ee03bfea .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-kasan uvm_fault: upageflttrap
* Struck through repros no longer work on HEAD.