syzbot

kernel panic at kern/src/printfmt.c:282, from core 0: assertion failed: buf
Stack Backtrace on Core 0:
#01 [<0xffffffffc200a33c>] in backtrace at src/kdebug.c:229
#02 [<0xffffffffc2009acd>] in _panic at src/init.c:267
#03 [<0xffffffffc2048dc1>] in vsnprintf at src/printfmt.c:282
#04 [<0xffffffffc2048e04>] in snprintf at src/printfmt.c:313
#05 [<0xffffffffc20830a7>] in procread at drivers/dev/proc.c:1029
#06 [<0xffffffffc203f813>] in rread at src/ns/sysfile.c:765
#07 [<0xffffffffc203f9bb>] in sysread at src/ns/sysfile.c:823
#08 [<0xffffffffc2056971>] in sys_read at src/syscall.c:1698
#09 [<0xffffffffc2059f09>] in syscall at src/syscall.c:2465
#10 [<0xffffffffc205a0d4>] in run_local_syscall at src/syscall.c:2500
#11 [<0xffffffffc205a609>] in prep_syscalls at src/syscall.c:2520
#12 [<0xffffffffc20abc0a>] in sysenter_callwrapper at arch/x86/trap.c:854