panic: kernel diagnostic assertion "to_ticks >= 0" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/kern_timeout.c", line 300 Starting stack trace... panic(ffffffff830d9281) at panic+0x1d0 sys/kern/subr_prf.c:229 __assert(ffffffff8308d65a,ffffffff8306ecf6,12c,ffffffff82fd87e1) at __assert+0x29 timeout_add(ffff80000121dd28,ffffff43) at timeout_add+0x2f7 sys/kern/kern_timeout.c:300 bpf_catchpacket(ffff80000121dc00,fffffd807ddad400,ef,ffffffff,ffff8000371b1040) at bpf_catchpacket+0x4bf sys/net/bpf.c:1646 _bpf_mtap(ffff80000124f700,fffffd807ddad400,fffffd807ddad400,1) at _bpf_mtap+0x321 sys/net/bpf.c:1416 if_vinput(ffff8000011c4000,fffffd807ddad400) at if_vinput+0xa7 sys/net/if.c:1026 tun_dev_write(5d00,ffff8000371b13d8,ffff800031f4e000,2) at tun_dev_write+0x301 sys/net/if_tun.c:914 spec_write(ffff8000371b1230) at spec_write+0x120 sys/kern/spec_vnops.c:302 VOP_WRITE(fffffd805b606e80,ffff8000371b13d8,11,fffffd807f7d3680) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_write(fffffd80681e61e0,ffff8000371b13d8,0) at vn_write+0x1d1 sys/kern/vfs_vnops.c:408 dofilewritev(ffff8000fffed700,c8,ffff8000371b13d8,0,ffff8000371b1490) at dofilewritev+0x23c sys/kern/sys_generic.c:375 sys_write(ffff8000fffed700,ffff8000371b1540,ffff8000371b1490) at sys_write+0xa2 sys/kern/sys_generic.c:295 syscall(ffff8000371b1540) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000371b1540) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7cb4f6472b0, count: 243 End of stack trace.