Extracting prog: 7m49.695486312s
Minimizing prog: 53m26.467847217s
Simplifying prog options: 0s
Extracting C: 4m18.241538339s
Simplifying C: 52m25.874120238s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
detailed listing:
executing program 0:
r0 = syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='nr0\x00', 0x10)
sendmmsg$inet(r0, &(0x7f00000020c0)=[{{0x0, 0x4000, &(0x7f0000000680)=[{&(0x7f00000004c0)='\f', 0x1}], 0x1}}], 0x1, 0x0)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
detailed listing:
executing program 0:
r0 = syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='nr0\x00', 0x10)
sendmmsg$inet(r0, &(0x7f00000020c0)=[{{0x0, 0x4000, &(0x7f0000000680)=[{&(0x7f00000004c0)='\f', 0x1}], 0x1}}], 0x1, 0x0)

program crashed: KMSAN: uninit-value in ax25cmp
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='nr0\x00', 0x10)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-sendmmsg$inet
detailed listing:
executing program 0:
r0 = syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
sendmmsg$inet(r0, &(0x7f00000020c0)=[{{0x0, 0x4000, &(0x7f0000000680)=[{&(0x7f00000004c0)='\f', 0x1}], 0x1}}], 0x1, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): setsockopt$SO_BINDTODEVICE-sendmmsg$inet
detailed listing:
executing program 0:
setsockopt$SO_BINDTODEVICE(0xffffffffffffffff, 0x1, 0x19, &(0x7f0000000000)='nr0\x00', 0x10)
sendmmsg$inet(0xffffffffffffffff, &(0x7f00000020c0)=[{{0x0, 0x4000, &(0x7f0000000680)=[{&(0x7f00000004c0)='\f', 0x1}], 0x1}}], 0x1, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
detailed listing:
executing program 0:
r0 = syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, 0x0, 0x0)
sendmmsg$inet(r0, &(0x7f00000020c0)=[{{0x0, 0x4000, &(0x7f0000000680)=[{&(0x7f00000004c0)='\f', 0x1}], 0x1}}], 0x1, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
detailed listing:
executing program 0:
r0 = syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='nr0\x00', 0x10)
sendmmsg$inet(r0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
detailed listing:
executing program 0:
r0 = syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='nr0\x00', 0x10)
sendmmsg$inet(r0, &(0x7f00000020c0)=[{{0x0, 0x0, 0x0}}], 0x1, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
detailed listing:
executing program 0:
r0 = syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='nr0\x00', 0x10)
sendmmsg$inet(r0, &(0x7f00000020c0)=[{{0x0, 0x0, &(0x7f0000000680)=[{0x0}], 0x1}}], 0x1, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
detailed listing:
executing program 0:
r0 = syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000000)='nr0\x00', 0x10)
sendmmsg$inet(r0, &(0x7f00000020c0)=[{{0x0, 0x0, &(0x7f0000000680)=[{&(0x7f00000004c0)}], 0x1}}], 0x1, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: KMSAN: uninit-value in ax25cmp
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: KMSAN: uninit-value in ax25cmp
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: KMSAN: uninit-value in ax25cmp
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: KMSAN: uninit-value in ax25cmp
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: KMSAN: uninit-value in ax25cmp
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: KMSAN: uninit-value in ax25cmp
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: KMSAN: uninit-value in ax25cmp
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: KMSAN: uninit-value in ax25cmp
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: KMSAN: uninit-value in ax25cmp
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: KMSAN: uninit-value in ax25cmp
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: KMSAN: uninit-value in ax25cmp
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: KMSAN: uninit-value in ax25cmp
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: KMSAN: uninit-value in ax25cmp
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: KMSAN: uninit-value in ax25cmp
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$802154_raw-setsockopt$SO_BINDTODEVICE-sendmmsg$inet
program crashed: KMSAN: uninit-value in ax25cmp
reproducing took 1h58m0.279015538s
repro crashed as (corrupted=false):
=====================================================
BUG: KMSAN: uninit-value in ax25cmp+0x3a5/0x470 net/ax25/ax25_addr.c:119
 ax25cmp+0x3a5/0x470 net/ax25/ax25_addr.c:119
 nr_dev_get+0x20e/0x450 net/netrom/nr_route.c:596
 nr_route_frame+0x1a2/0xfe0 net/netrom/nr_route.c:769
 nr_xmit+0x5a/0x1c0 net/netrom/nr_dev.c:144
 __netdev_start_xmit include/linux/netdevice.h:5002 [inline]
 netdev_start_xmit include/linux/netdevice.h:5011 [inline]
 xmit_one net/core/dev.c:3590 [inline]
 dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3606
 __dev_queue_xmit+0x366a/0x57d0 net/core/dev.c:4434
 dev_queue_xmit include/linux/netdevice.h:3168 [inline]
 raw_sendmsg+0x6b5/0xdf0 net/ieee802154/socket.c:299
 ieee802154_sock_sendmsg+0x96/0xd0 net/ieee802154/socket.c:96
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x30f/0x380 net/socket.c:726
 ____sys_sendmsg+0x903/0xb60 net/socket.c:2583
 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2637
 __sys_sendmmsg+0x2ff/0x880 net/socket.c:2726
 __do_sys_sendmmsg net/socket.c:2753 [inline]
 __se_sys_sendmmsg net/socket.c:2750 [inline]
 __x64_sys_sendmmsg+0xbc/0x120 net/socket.c:2750
 x64_sys_call+0x33c2/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:308
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4110 [inline]
 slab_alloc_node mm/slub.c:4153 [inline]
 kmem_cache_alloc_node_noprof+0x907/0xe00 mm/slub.c:4205
 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:587
 __alloc_skb+0x363/0x7b0 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [inline]
 alloc_skb_with_frags+0xc8/0xd00 net/core/skbuff.c:6612
 sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2881
 sock_alloc_send_skb include/net/sock.h:1797 [inline]
 raw_sendmsg+0x367/0xdf0 net/ieee802154/socket.c:282
 ieee802154_sock_sendmsg+0x96/0xd0 net/ieee802154/socket.c:96
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x30f/0x380 net/socket.c:726
 ____sys_sendmsg+0x903/0xb60 net/socket.c:2583
 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2637
 __sys_sendmmsg+0x2ff/0x880 net/socket.c:2726
 __do_sys_sendmmsg net/socket.c:2753 [inline]
 __se_sys_sendmmsg net/socket.c:2750 [inline]
 __x64_sys_sendmmsg+0xbc/0x120 net/socket.c:2750
 x64_sys_call+0x33c2/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:308
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 0 UID: 0 PID: 5804 Comm: syz-executor112 Not tainted 6.13.0-rc1-syzkaller-00316-gb5f217084ab3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
=====================================================

final repro crashed as (corrupted=false):
=====================================================
BUG: KMSAN: uninit-value in ax25cmp+0x3a5/0x470 net/ax25/ax25_addr.c:119
 ax25cmp+0x3a5/0x470 net/ax25/ax25_addr.c:119
 nr_dev_get+0x20e/0x450 net/netrom/nr_route.c:596
 nr_route_frame+0x1a2/0xfe0 net/netrom/nr_route.c:769
 nr_xmit+0x5a/0x1c0 net/netrom/nr_dev.c:144
 __netdev_start_xmit include/linux/netdevice.h:5002 [inline]
 netdev_start_xmit include/linux/netdevice.h:5011 [inline]
 xmit_one net/core/dev.c:3590 [inline]
 dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3606
 __dev_queue_xmit+0x366a/0x57d0 net/core/dev.c:4434
 dev_queue_xmit include/linux/netdevice.h:3168 [inline]
 raw_sendmsg+0x6b5/0xdf0 net/ieee802154/socket.c:299
 ieee802154_sock_sendmsg+0x96/0xd0 net/ieee802154/socket.c:96
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x30f/0x380 net/socket.c:726
 ____sys_sendmsg+0x903/0xb60 net/socket.c:2583
 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2637
 __sys_sendmmsg+0x2ff/0x880 net/socket.c:2726
 __do_sys_sendmmsg net/socket.c:2753 [inline]
 __se_sys_sendmmsg net/socket.c:2750 [inline]
 __x64_sys_sendmmsg+0xbc/0x120 net/socket.c:2750
 x64_sys_call+0x33c2/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:308
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4110 [inline]
 slab_alloc_node mm/slub.c:4153 [inline]
 kmem_cache_alloc_node_noprof+0x907/0xe00 mm/slub.c:4205
 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:587
 __alloc_skb+0x363/0x7b0 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [inline]
 alloc_skb_with_frags+0xc8/0xd00 net/core/skbuff.c:6612
 sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2881
 sock_alloc_send_skb include/net/sock.h:1797 [inline]
 raw_sendmsg+0x367/0xdf0 net/ieee802154/socket.c:282
 ieee802154_sock_sendmsg+0x96/0xd0 net/ieee802154/socket.c:96
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x30f/0x380 net/socket.c:726
 ____sys_sendmsg+0x903/0xb60 net/socket.c:2583
 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2637
 __sys_sendmmsg+0x2ff/0x880 net/socket.c:2726
 __do_sys_sendmmsg net/socket.c:2753 [inline]
 __se_sys_sendmmsg net/socket.c:2750 [inline]
 __x64_sys_sendmmsg+0xbc/0x120 net/socket.c:2750
 x64_sys_call+0x33c2/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:308
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 0 UID: 0 PID: 5804 Comm: syz-executor112 Not tainted 6.13.0-rc1-syzkaller-00316-gb5f217084ab3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
=====================================================