Extracting prog: 2m7.826465893s
Minimizing prog: 20m56.290471432s
Simplifying prog options: 0s
Extracting C: 59.236702574s
Simplifying C: 9m46.294042166s


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:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-bind$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
r1 = socket$rxrpc(0x21, 0x2, 0xa)
bind$rxrpc(r1, 0x0, 0x0)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0xfffffd11, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYRES32=r1, @ANYRES16=r0, @ANYRES8=r0], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program crashed: general protection fault in sigd_send
single: successfully extracted reproducer
found reproducer with 11 syscalls
minimizing guilty program
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-bind$rxrpc
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
r1 = socket$rxrpc(0x21, 0x2, 0xa)
bind$rxrpc(r1, 0x0, 0x0)

program did not crash
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
r1 = socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0xfffffd11, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYRES32=r1, @ANYRES16=r0, @ANYRES8=r0], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program crashed: general protection fault in sigd_send
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0xfffffd11, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYRES32, @ANYRES16=r0, @ANYRES8=r0], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program did not crash
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
r1 = socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0xfffffd11, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYRES32=r1, @ANYRES16=r0, @ANYRES8=r0], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program did not crash
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$BTRFS_IOC_SET_FEATURES(0xffffffffffffffff, 0x61f0, 0x0)
r0 = socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(0xffffffffffffffff, &(0x7f0000000500)={0x0, 0xfffffd11, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYRES32=r0, @ANYRES16, @ANYRES8], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program did not crash
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
r1 = socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0xfffffd11, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYRES32=r1, @ANYRES16=r0, @ANYRES8=r0], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program did not crash
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
r1 = socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0xfffffd11, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYRES32=r1, @ANYRES16=r0, @ANYRES8=r0], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program did not crash
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
r1 = socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0xfffffd11, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYRES32=r1, @ANYRES16=r0, @ANYRES8=r0], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program did not crash
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
r1 = socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0xfffffd11, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYRES32=r1, @ANYRES16=r0, @ANYRES8=r0], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program did not crash
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
r1 = socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0xfffffd11, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYRES32=r1, @ANYRES16=r0, @ANYRES8=r0], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program did not crash
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
r1 = socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0xfffffd11, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYRES32=r1, @ANYRES16=r0, @ANYRES8=r0], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program did not crash
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, 0x0)
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
r1 = socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0xfffffd11, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYRES32=r1, @ANYRES16=r0, @ANYRES8=r0], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program did not crash
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, 0x0, 0x0)

program did not crash
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program did not crash
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={0x0, 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program did not crash
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
program crashed: general protection fault in sigd_send
simplifying C reproducer
testing compiled C program (duration=45.365508672s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
program did not crash
testing compiled C program (duration=45.365508672s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
program did not crash
testing compiled C program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
program did not crash
testing compiled C program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
program crashed: general protection fault in sigd_send
testing compiled C program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
program crashed: general protection fault in sigd_send
testing compiled C program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
program crashed: general protection fault in sigd_send
testing compiled C program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
program crashed: general protection fault in sigd_send
testing compiled C program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
program crashed: general protection fault in sigd_send
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
r1 = socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0xfffffd11, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYRES32=r1, @ANYRES16=r0, @ANYRES8=r0], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program crashed: general protection fault in sigd_send
validation run: crashed=true
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
r1 = socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0xfffffd11, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYRES32=r1, @ANYRES16=r0, @ANYRES8=r0], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program crashed: general protection fault in sigd_send
validation run: crashed=true
testing program (duration=45.365508672s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-socket$l2tp-close-syz_open_procfs$namespace-pselect6-socket-ioctl$BTRFS_IOC_SET_FEATURES-socket$rxrpc-sendmsg$SOCK_DESTROY
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
socket$l2tp(0x2, 0x2, 0x73)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = socket(0x8, 0x0, 0x8000)
ioctl$BTRFS_IOC_SET_FEATURES(r0, 0x61f0, 0x0)
r1 = socket$rxrpc(0x21, 0x2, 0xa)
sendmsg$SOCK_DESTROY(r0, &(0x7f0000000500)={0x0, 0xfffffd11, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYRES32=r1, @ANYRES16=r0, @ANYRES8=r0], 0x178}, 0x1, 0x0, 0x0, 0x20000054}, 0x0)

program crashed: general protection fault in sigd_send
validation run: crashed=true
reproducing took 38m20.38877167s
repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000008034: 0000 [#1] SMP KASAN PTI
KASAN: probably user-memory-access in range [0x00000000000401a0-0x00000000000401a7]
CPU: 1 UID: 0 PID: 6047 Comm: syz.2.19 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:sigd_send+0x48d/0xf90 net/atm/signaling.c:78
Code: 8d 67 14 4c 89 e0 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 91 07 00 00 31 ed 41 2b 2c 24 49 8d be 9c 01 00 00 48 89 f8 48 c1 e8 03 <0f> b6 04 18 84 c0 0f 85 8f 07 00 00 41 89 ae 9c 01 00 00 49 8d be
RSP: 0018:ffffc90003557820 EFLAGS: 00010202
RAX: 0000000000008034 RBX: dffffc0000000000 RCX: 0000000000000005
RDX: ffffffff8a82141f RSI: ffffffff8f6f1500 RDI: 00000000000401a0
RBP: 0000000000000000 R08: ffff8880750d1e40 R09: 0000000000000007
R10: 000000000000000f R11: 0000000000000000 R12: ffff8880753296d4
R13: 1ffff1100ea652d8 R14: 0000000000040004 R15: ffff8880753296c0
FS:  00007fa83a3fe6c0(0000) GS:ffff888125ddc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa83a3ddd58 CR3: 000000003251e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 vcc_sendmsg+0xb2e/0xd70 net/atm/common.c:650
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:742
 ____sys_sendmsg+0x505/0x830 net/socket.c:2630
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2684
 __sys_sendmsg net/socket.c:2716 [inline]
 __do_sys_sendmsg net/socket.c:2721 [inline]
 __se_sys_sendmsg net/socket.c:2719 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2719
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa83ad8efc9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa83a3fe038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa83afe5fa0 RCX: 00007fa83ad8efc9
RDX: 0000000000000000 RSI: 0000200000000500 RDI: 0000000000000004
RBP: 00007fa83ae11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa83afe6038 R14: 00007fa83afe5fa0 R15: 00007ffe63105fd8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:sigd_send+0x48d/0xf90 net/atm/signaling.c:78
Code: 8d 67 14 4c 89 e0 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 91 07 00 00 31 ed 41 2b 2c 24 49 8d be 9c 01 00 00 48 89 f8 48 c1 e8 03 <0f> b6 04 18 84 c0 0f 85 8f 07 00 00 41 89 ae 9c 01 00 00 49 8d be
RSP: 0018:ffffc90003557820 EFLAGS: 00010202

RAX: 0000000000008034 RBX: dffffc0000000000 RCX: 0000000000000005
RDX: ffffffff8a82141f RSI: ffffffff8f6f1500 RDI: 00000000000401a0
RBP: 0000000000000000 R08: ffff8880750d1e40 R09: 0000000000000007
R10: 000000000000000f R11: 0000000000000000 R12: ffff8880753296d4
R13: 1ffff1100ea652d8 R14: 0000000000040004 R15: ffff8880753296c0
FS:  00007fa83a3fe6c0(0000) GS:ffff888125ddc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa83a3ddd58 CR3: 000000003251e000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	8d 67 14             	lea    0x14(%rdi),%esp
   3:	4c 89 e0             	mov    %r12,%rax
   6:	48 c1 e8 03          	shr    $0x3,%rax
   a:	0f b6 04 18          	movzbl (%rax,%rbx,1),%eax
   e:	84 c0                	test   %al,%al
  10:	0f 85 91 07 00 00    	jne    0x7a7
  16:	31 ed                	xor    %ebp,%ebp
  18:	41 2b 2c 24          	sub    (%r12),%ebp
  1c:	49 8d be 9c 01 00 00 	lea    0x19c(%r14),%rdi
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	0f b6 04 18          	movzbl (%rax,%rbx,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	0f 85 8f 07 00 00    	jne    0x7c5
  36:	41 89 ae 9c 01 00 00 	mov    %ebp,0x19c(%r14)
  3d:	49                   	rex.WB
  3e:	8d                   	.byte 0x8d
  3f:	be                   	.byte 0xbe

final repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000008034: 0000 [#1] SMP KASAN PTI
KASAN: probably user-memory-access in range [0x00000000000401a0-0x00000000000401a7]
CPU: 1 UID: 0 PID: 6047 Comm: syz.2.19 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:sigd_send+0x48d/0xf90 net/atm/signaling.c:78
Code: 8d 67 14 4c 89 e0 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 91 07 00 00 31 ed 41 2b 2c 24 49 8d be 9c 01 00 00 48 89 f8 48 c1 e8 03 <0f> b6 04 18 84 c0 0f 85 8f 07 00 00 41 89 ae 9c 01 00 00 49 8d be
RSP: 0018:ffffc90003557820 EFLAGS: 00010202
RAX: 0000000000008034 RBX: dffffc0000000000 RCX: 0000000000000005
RDX: ffffffff8a82141f RSI: ffffffff8f6f1500 RDI: 00000000000401a0
RBP: 0000000000000000 R08: ffff8880750d1e40 R09: 0000000000000007
R10: 000000000000000f R11: 0000000000000000 R12: ffff8880753296d4
R13: 1ffff1100ea652d8 R14: 0000000000040004 R15: ffff8880753296c0
FS:  00007fa83a3fe6c0(0000) GS:ffff888125ddc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa83a3ddd58 CR3: 000000003251e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 vcc_sendmsg+0xb2e/0xd70 net/atm/common.c:650
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:742
 ____sys_sendmsg+0x505/0x830 net/socket.c:2630
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2684
 __sys_sendmsg net/socket.c:2716 [inline]
 __do_sys_sendmsg net/socket.c:2721 [inline]
 __se_sys_sendmsg net/socket.c:2719 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2719
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa83ad8efc9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa83a3fe038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa83afe5fa0 RCX: 00007fa83ad8efc9
RDX: 0000000000000000 RSI: 0000200000000500 RDI: 0000000000000004
RBP: 00007fa83ae11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa83afe6038 R14: 00007fa83afe5fa0 R15: 00007ffe63105fd8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:sigd_send+0x48d/0xf90 net/atm/signaling.c:78
Code: 8d 67 14 4c 89 e0 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 91 07 00 00 31 ed 41 2b 2c 24 49 8d be 9c 01 00 00 48 89 f8 48 c1 e8 03 <0f> b6 04 18 84 c0 0f 85 8f 07 00 00 41 89 ae 9c 01 00 00 49 8d be
RSP: 0018:ffffc90003557820 EFLAGS: 00010202

RAX: 0000000000008034 RBX: dffffc0000000000 RCX: 0000000000000005
RDX: ffffffff8a82141f RSI: ffffffff8f6f1500 RDI: 00000000000401a0
RBP: 0000000000000000 R08: ffff8880750d1e40 R09: 0000000000000007
R10: 000000000000000f R11: 0000000000000000 R12: ffff8880753296d4
R13: 1ffff1100ea652d8 R14: 0000000000040004 R15: ffff8880753296c0
FS:  00007fa83a3fe6c0(0000) GS:ffff888125ddc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa83a3ddd58 CR3: 000000003251e000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	8d 67 14             	lea    0x14(%rdi),%esp
   3:	4c 89 e0             	mov    %r12,%rax
   6:	48 c1 e8 03          	shr    $0x3,%rax
   a:	0f b6 04 18          	movzbl (%rax,%rbx,1),%eax
   e:	84 c0                	test   %al,%al
  10:	0f 85 91 07 00 00    	jne    0x7a7
  16:	31 ed                	xor    %ebp,%ebp
  18:	41 2b 2c 24          	sub    (%r12),%ebp
  1c:	49 8d be 9c 01 00 00 	lea    0x19c(%r14),%rdi
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	0f b6 04 18          	movzbl (%rax,%rbx,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	0f 85 8f 07 00 00    	jne    0x7c5
  36:	41 89 ae 9c 01 00 00 	mov    %ebp,0x19c(%r14)
  3d:	49                   	rex.WB
  3e:	8d                   	.byte 0x8d
  3f:	be                   	.byte 0xbe