dhcpleased: lease attributed to wrong interface after sibling alias

*Synopsis*
dhcpleased: renewed lease attributed to non-autoconf sibling interface
after alias added to originating interface
*Category: *
system
*Description:*
static-config interface (no autoconf, no link) received a Comcast lease
after an alias was added to a sibling  interface running DHCP, through two
separate events.  Then despite being statically configured  continued to
receive bizarre leases when plugged into other networks
*Reproduction (on a PROTECLI VAULT Model V1610 with core BIOS*
 - Multi-interface firewall, dhcpleased active on one (igc0), all other
interfaces fixed, no autoconf
  - Add alias to that interface with ifconfig igc0 alias ...
  - Trigger renewal (modem cycle, dhcpleasectl igc0)
  - Check all other interfaces — one may have received an unrelated DHCP
lease despite having no link and no autoconf flag



sendbug ---------------------

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To: [email protected]
Subject:
From: szabop
Cc: szabop
Reply-To: szabop

>Synopsis: <synopsis of the problem (one line)>
>Category: <PR category (one line)>
>Environment:
System      : OpenBSD 7.8
Details     : OpenBSD 7.8 (GENERIC.MP) #7: Tue Apr 14 04:12:37 MDT 2026
[email protected]:/usr/src/sys/arch/amd64/compile/
GENERIC.MP

Architecture: OpenBSD.amd64
Machine     : amd64
>Description:
<precise description of the problem (multiple lines)>
>How-To-Repeat:
<code/input/activities to reproduce the problem (multiple lines)>
>Fix:
<how to correct or work around the problem, if known (multiple lines)>

SENDBUG: Run sendbug as root if this is an ACPI report!
SENDBUG: dmesg and usbdevs are attached.
SENDBUG: Feel free to delete or use the -D flag if they contain sensitive
information.

dmesg:
OpenBSD 7.8 (GENERIC.MP) #7: Tue Apr 14 04:12:37 MDT 2026
    [email protected]:/usr/src/sys/arch/amd64/compile/
GENERIC.MP
real mem = 17005154304 (16217MB)
avail mem = 16462938112 (15700MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 3.3 @ 0x78333000 (30 entries)
bios0: vendor 3mdeb version "Dasharo (coreboot+UEFI) v0.9.3" date 09/06/2024
bios0: Protectli V1610
efi0 at bios0: UEFI 2.8
efi0: EDK II rev 0x10000
acpi0 at bios0: ACPI 6.0
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP SSDT MCFG TPM2 LPIT APIC SPCR DMAR HPET
acpi0: wakeup devices XHCI(S3) GLAN(S4)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimcfg0 at acpi0
acpimcfg0: addr 0xc0000000, bus 0-255
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Pentium(R) Silver N6005 @ 2.00GHz, 3292.88 MHz, 06-9c-00,
patch 24000026
cpu0: cpuid 1
edx=bfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
ecx=47f8ebbf<SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,CX16,xTPR,PDCM,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,RDRAND>
cpu0: cpuid 6 eax=110077<SENSOR,ARAT,PTS> ecx=9<EFFFREQ>
cpu0: cpuid 7.0
ebx=2394a2c3<FSGSBASE,TSC_ADJUST,SMEP,ERMS,RDSEED,SMAP,CLFLUSHOPT,CLWB,PT,SHA>
ecx=18400124<UMIP,WAITPKG> edx=fc000400<MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD>
cpu0: cpuid a vers=5, gp=4, gpwidth=48, ff=3, ffwidth=48
cpu0: cpuid d.1 eax=f<XSAVEOPT,XSAVEC,XGETBV1,XSAVES>
cpu0: cpuid 80000001 edx=28100800<NXE,RDTSCP,LONG> ecx=101<LAHF,3DNOWP>
cpu0: cpuid 80000007 edx=100<ITSC>
cpu0: msr
10a=14020c6b<IBRS_ALL,SKIP_L1DFL,MDS_NO,IF_PSCHANGE,MISC_PKG_CT,ENERGY_FILT,FB_CLEAR,GDS_NO,RFDS_CLEAR>
cpu0: 32KB 64b/line 8-way D-cache, 32KB 64b/line 8-way I-cache, 1MB
64b/line 12-way L2 cache, 4MB 64b/line 16-way L3 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 38MHz
cpu0: mwait min=64, max=64, C-substates=0.2.0.2.2.1.1.1, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Pentium(R) Silver N6005 @ 2.00GHz, 3292.87 MHz, 06-9c-00,
patch 24000026
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 4 (application processor)
cpu2: Intel(R) Pentium(R) Silver N6005 @ 2.00GHz, 3292.88 MHz, 06-9c-00,
patch 24000026
cpu2: smt 0, core 2, package 0
cpu3 at mainbus0: apid 6 (application processor)
cpu3: Intel(R) Pentium(R) Silver N6005 @ 2.00GHz, 3292.87 MHz, 06-9c-00,
patch 24000026
cpu3: smt 0, core 3, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 120 pins
acpihpet0 at acpi0: 19200000 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus 1 (RP01)
acpiprt2 at acpi0: bus -1 (RP02)
acpiprt3 at acpi0: bus -1 (RP03)
acpiprt4 at acpi0: bus 7 (RP04)
acpiprt5 at acpi0: bus 8 (RP05)
acpiprt6 at acpi0: bus 9 (RP06)
acpiprt7 at acpi0: bus 10 (RP07)
acpiprt8 at acpi0: bus -1 (RP08)
acpiprt9 at acpi0: bus -1 (RP09)
acpiprt10 at acpi0: bus -1 (RP10)
acpiprt11 at acpi0: bus -1 (RP11)
acpiprt12 at acpi0: bus -1 (RP12)
acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001
"INT34C8" at acpi0 not configured
acpicmos0 at acpi0
"INTC1026" at acpi0 not configured
intelpmc0 at acpi0: PEPD
state 0: 0x7f:1:2:0x00:0x0000000000000060
counter: 0x7f:64:0:0x00:0x0000000000000632
frequency: 0
state 1: 0x7f:1:2:0x00:0x0000000000000060
counter: 0x00:32:0:0x03:0x00000000fe00193c
frequency: 0
tpm0 at acpi0 TPM_ 2.0 (CRB) addr 0xfed40000/0x5000, device 0x00000000 rev
0x0
acpicpu0 at acpi0: C3(200@253 mwait.1@0x33), C2(350@127 mwait.1@0x21),
C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C3(200@253 mwait.1@0x33), C2(350@127 mwait.1@0x21),
C1(1000@1 mwait.1), PSS
acpicpu2 at acpi0: C3(200@253 mwait.1@0x33), C2(350@127 mwait.1@0x21),
C1(1000@1 mwait.1), PSS
acpicpu3 at acpi0: C3(200@253 mwait.1@0x33), C2(350@127 mwait.1@0x21),
C1(1000@1 mwait.1), PSS
"BOOT0000" at acpi0 not configured
cpu0: using VERW MDS workaround
cpu0: Enhanced SpeedStep 3292 MHz: speeds: 2001, 2000, 1800, 1600, 1400,
1200, 1000, 800 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Jasper Lake Host" rev 0x00
inteldrm0 at pci0 dev 2 function 0 "Intel UHD Graphics" rev 0x01
drm0 at inteldrm0
inteldrm0: msi, JASPERLAKE, gen 11
xhci0 at pci0 dev 20 function 0 "Intel Jasper Lake xHCI" rev 0x01: msi,
xHCI 1.10
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev
3.00/1.00 addr 1
"Intel Jasper Lake Shared SRAM" rev 0x01 at pci0 dev 20 function 2 not
configured
"Intel Jasper Lake HECI" rev 0x01 at pci0 dev 22 function 0 not configured
sdhc0 at pci0 dev 26 function 0 "Intel Jasper Lake eMMC" rev 0x01: apic 2
int 16
sdhc0: SDHC 3.00, 200 MHz base clock
sdmmc0 at sdhc0: 8-bit, sd high-speed, mmc high-speed, ddr52, dma
ppb0 at pci0 dev 28 function 0 "Intel Jasper Lake PCIE" rev 0x01: msi
pci1 at ppb0 bus 1
ppb1 at pci1 dev 0 function 0 vendor "ASMedia", unknown product 0x2806 rev
0x01
pci2 at ppb1 bus 2
ppb2 at pci2 dev 0 function 0 vendor "ASMedia", unknown product 0x2806 rev
0x01: msi
pci3 at ppb2 bus 3
igc0 at pci3 dev 0 function 0 "Intel I226-V" rev 0x04, msix, 4 queues,
address 64:62:66:2f:b8:a2
ppb3 at pci2 dev 2 function 0 vendor "ASMedia", unknown product 0x2806 rev
0x01: msi
pci4 at ppb3 bus 4
igc1 at pci4 dev 0 function 0 "Intel I226-V" rev 0x04, msix, 4 queues,
address 64:62:66:2f:b8:a3
ppb4 at pci2 dev 6 function 0 vendor "ASMedia", unknown product 0x2806 rev
0x01: msi
pci5 at ppb4 bus 5
igc2 at pci5 dev 0 function 0 "Intel I226-V" rev 0x04, msix, 4 queues,
address 64:62:66:2f:b8:a4
ppb5 at pci2 dev 14 function 0 vendor "ASMedia", unknown product 0x2806 rev
0x01: msi
pci6 at ppb5 bus 6
ppb6 at pci0 dev 28 function 3 "Intel Jasper Lake PCIE" rev 0x01: msi
pci7 at ppb6 bus 7
nvme0 at pci7 dev 0 function 0 vendor "Kingston", unknown product 0x5025
rev 0x00: msix, NVMe 1.4
nvme0: KINGSTON SNV3S500G, firmware P3BR0A27, serial 50026B7687893B8C
scsibus1 at nvme0: 2 targets, initiator 0
sd0 at scsibus1 targ 1 lun 0: <NVMe, KINGSTON SNV3S50, P3BR>
sd0: 476940MB, 512 bytes/sector, 976773168 sectors
ppb7 at pci0 dev 28 function 4 "Intel Jasper Lake PCIE" rev 0x01: msi
pci8 at ppb7 bus 8
igc3 at pci8 dev 0 function 0 "Intel I226-V" rev 0x04, msix, 4 queues,
address 64:62:66:2f:b8:a5
ppb8 at pci0 dev 28 function 5 "Intel Jasper Lake PCIE" rev 0x01: msi
pci9 at ppb8 bus 9
igc4 at pci9 dev 0 function 0 "Intel I226-V" rev 0x04, msix, 4 queues,
address 64:62:66:2f:b8:a6
ppb9 at pci0 dev 28 function 6 "Intel Jasper Lake PCIE" rev 0x01: msi
pci10 at ppb9 bus 10
igc5 at pci10 dev 0 function 0 "Intel I226-V" rev 0x04, msix, 4 queues,
address 64:62:66:2f:b8:a7
pcib0 at pci0 dev 31 function 0 "Intel Jasper Lake eSPI" rev 0x01
azalia0 at pci0 dev 31 function 3 "Intel Jasper Lake HD Audio" rev 0x01: msi
azalia0: no supported codecs
ichiic0 at pci0 dev 31 function 4 "Intel Jasper Lake SMBus" rev 0x01: apic
2 int 16
iic0 at ichiic0
"Intel Jasper Lake SPI" rev 0x01 at pci0 dev 31 function 5 not configured
isa0 at pcib0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: VMX/EPT
efifb at mainbus0 not configured
scsibus2 at sdmmc0: 2 targets, initiator 0
sd1 at scsibus2 targ 1 lun 0: <Samsung, BJTD4R, 0000> removable
sd1: 29820MB, 512 bytes/sector, 61071360 sectors
uhub1 at uhub0 port 5 configuration 1 interface 0 "VIA Labs, Inc. USB2.0
Hub" rev 2.10/7.00 addr 2
ugen0 at uhub1 port 5 "VIA Labs, Inc. USB Billboard Device" rev 2.01/0.01
addr 3
uhub2 at uhub0 port 10 configuration 1 interface 0 "VIA Labs, Inc. USB3.0
Hub" rev 3.20/7.00 addr 4
vscsi0 at root
scsibus3 at vscsi0: 256 targets
softraid0 at root
scsibus4 at softraid0: 256 targets
root on sd0a (c9a38b04be0fa58f.a) swap on sd0b dump on sd0b
drm:pid99629:dmc_load_work_fn *NOTICE* [drm] Failed to load DMC firmware
i915/icl_dmc_ver1_09.bin (0xfffffffffffffffee). Disabling runtime power
management.
inteldrm0: 1024x768, 32bpp
wsdisplay0 at inteldrm0 mux 1
wsdisplay0: screen 0-5 added (std, vt100 emulation)

usbdevs:
Controller /dev/usb0:
addr 01: 8086:0000 Intel, xHCI root hub
super speed, self powered, config 1, rev 1.00
driver: uhub0
addr 02: 2109:2817 VIA Labs, Inc., USB2.0 Hub
high speed, self powered, config 1, rev 7.00
driver: uhub1
addr 03: 2109:8817 VIA Labs, Inc., USB Billboard Device
high speed, self powered, config 1, rev 0.01, iSerial 0000000000000001
driver: ugen0
addr 04: 2109:0817 VIA Labs, Inc., USB3.0 Hub
super speed, self powered, config 1, rev 7.00
driver: uhub2