Extracting prog: 2m27.504382358s Minimizing prog: 34m22.406696496s Simplifying prog options: 2m41.908055282s Extracting C: 1m49.897113278s Simplifying C: 8m34.13509992s 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}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r3], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program crashed: possible deadlock in inet_shutdown single: successfully extracted reproducer found reproducer with 8 syscalls minimizing guilty program testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) socket$inet6_tcp(0xa, 0x1, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r3], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r3], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r0], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32, @ANYBLOB="0c00018008000100", @ANYRES32], 0x6c}}, 0x20000000) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r2], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r1, @ANYBLOB="0c00018008000100", @ANYRES32=r1], 0x6c}}, 0x20000000) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r2], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r1, @ANYBLOB="0c00018008000100", @ANYRES32=r1], 0x6c}}, 0x20000000) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r2], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r3], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32, @ANYBLOB="0c00018008000100", @ANYRES32], 0x6c}}, 0x20000000) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r2], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x20000000) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r1], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, 0x0}, 0x20000000) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r1], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={0x0, 0x6c}}, 0x20000000) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r1], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[], 0x6c}}, 0x20000000) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r1], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32=r2], 0x6c}}, 0x20000000) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r3], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB, @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r3], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB, @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r3], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r3], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) socket$inet6_tcp(0xa, 0x1, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, 0x0, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) socket$inet6_tcp(0xa, 0x1, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) socket$inet6_tcp(0xa, 0x1, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={0x0, 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) socket$inet6_tcp(0xa, 0x1, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB, @ANYRES8=r3], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash testing program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB, @ANYRES16=r4, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r3], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program did not crash extracting C reproducer testing compiled C program (duration=45.40556713s, {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$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE program did not crash simplifying guilty program options testing program (duration=45.40556713s, {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}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r3], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program crashed: possible deadlock in inet_shutdown extracting C reproducer testing compiled C program (duration=45.40556713s, {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}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE program crashed: possible deadlock in inet_shutdown simplifying C reproducer testing compiled C program (duration=45.40556713s, {Threaded:false 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}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE program did not crash testing compiled C program (duration=45.40556713s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE program crashed: possible deadlock in inet_shutdown testing compiled C program (duration=45.40556713s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE program crashed: possible deadlock in inet_shutdown testing compiled C program (duration=45.40556713s, {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:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE program crashed: possible deadlock in inet_shutdown testing compiled C program (duration=45.40556713s, {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:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE program crashed: possible deadlock in inet_shutdown testing compiled C program (duration=45.40556713s, {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:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE program crashed: possible deadlock in inet_shutdown testing compiled C program (duration=45.40556713s, {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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE program crashed: possible deadlock in inet_shutdown testing program (duration=45.40556713s, {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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r3], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program crashed: possible deadlock in inet_shutdown validation run: crashed=true testing program (duration=45.40556713s, {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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r3], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program crashed: possible deadlock in inet_shutdown validation run: crashed=true testing program (duration=45.40556713s, {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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT-socket$inet6_tcp-syz_genetlink_get_family_id$nbd-syz_init_net_socket$nl_generic-sendmsg$NBD_CMD_RECONFIGURE detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100ffffffff00000000010000000c0005006c010000000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32=r2], 0x6c}}, 0x20000000) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010026bd7000fedbdf25030040000800010000000000100007800c00018008000100", @ANYRES8=r3], 0x2c}, 0x1, 0x0, 0x0, 0x150}, 0x20008040) program crashed: possible deadlock in inet_shutdown validation run: crashed=true reproducing took 55m10.868261256s repro crashed as (corrupted=false): block nbd0: Receive control failed (result -107) ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ kworker/u9:2/5924 is trying to acquire lock: ffff88802acc2ae0 (sk_lock-AF_INET6){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1713 [inline] ffff88802acc2ae0 (sk_lock-AF_INET6){+.+.}-{0:0}, at: inet_shutdown+0x6a/0x390 net/ipv4/af_inet.c:915 but task is already holding lock: ffff888079bd1a68 (&nsock->tx_lock){+.+.}-{4:4}, at: recv_work+0x1c19/0x1d40 drivers/block/nbd.c:1020 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #6 (&nsock->tx_lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:632 [inline] __mutex_lock+0x19e/0x1420 kernel/locking/mutex.c:794 nbd_handle_cmd drivers/block/nbd.c:1143 [inline] nbd_queue_rq+0x37b/0x1100 drivers/block/nbd.c:1207 blk_mq_dispatch_rq_list+0xa70/0x1910 block/blk-mq.c:2148 __blk_mq_do_dispatch_sched block/blk-mq-sched.c:168 [inline] blk_mq_do_dispatch_sched block/blk-mq-sched.c:182 [inline] __blk_mq_sched_dispatch_requests+0xdcc/0x1600 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xd7/0x190 block/blk-mq-sched.c:329 blk_mq_run_hw_queue+0x348/0x4f0 block/blk-mq.c:2386 blk_mq_dispatch_list+0xd16/0xe10 include/linux/spinlock.h:-1 blk_mq_flush_plug_list+0x48d/0x570 block/blk-mq.c:2997 __blk_flush_plug+0x3ed/0x4d0 block/blk-core.c:1230 blk_finish_plug block/blk-core.c:1257 [inline] __submit_bio+0x28d/0x580 block/blk-core.c:649 __submit_bio_noacct_mq block/blk-core.c:722 [inline] submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:753 submit_bh fs/buffer.c:2842 [inline] block_read_full_folio+0x599/0x830 fs/buffer.c:2444 filemap_read_folio+0x137/0x3b0 mm/filemap.c:2502 do_read_cache_folio+0x358/0x590 mm/filemap.c:4107 read_mapping_folio include/linux/pagemap.h:1028 [inline] read_part_sector+0xb6/0x2b0 block/partitions/core.c:723 adfspart_check_ICS+0xa5/0xa40 block/partitions/acorn.c:360 check_partition block/partitions/core.c:142 [inline] blk_add_partitions block/partitions/core.c:590 [inline] bdev_disk_changed+0x7ba/0x1550 block/partitions/core.c:694 blkdev_get_whole+0x380/0x510 block/bdev.c:764 bdev_open+0x31e/0xd30 block/bdev.c:973 blkdev_open+0x470/0x610 block/fops.c:697 do_dentry_open+0x785/0x14e0 fs/open.c:949 vfs_open+0x3b/0x340 fs/open.c:1081 do_open fs/namei.c:4693 [inline] path_openat+0x2e08/0x3860 fs/namei.c:4852 do_file_open+0x23e/0x4a0 fs/namei.c:4881 do_sys_openat2+0x113/0x200 fs/open.c:1366 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1383 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #5 (&cmd->lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:632 [inline] __mutex_lock+0x19e/0x1420 kernel/locking/mutex.c:794 nbd_queue_rq+0xc6/0x1100 drivers/block/nbd.c:1199 blk_mq_dispatch_rq_list+0xa70/0x1910 block/blk-mq.c:2148 __blk_mq_do_dispatch_sched block/blk-mq-sched.c:168 [inline] blk_mq_do_dispatch_sched block/blk-mq-sched.c:182 [inline] __blk_mq_sched_dispatch_requests+0xdcc/0x1600 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xd7/0x190 block/blk-mq-sched.c:329 blk_mq_run_hw_queue+0x348/0x4f0 block/blk-mq.c:2386 blk_mq_dispatch_list+0xd16/0xe10 include/linux/spinlock.h:-1 blk_mq_flush_plug_list+0x48d/0x570 block/blk-mq.c:2997 __blk_flush_plug+0x3ed/0x4d0 block/blk-core.c:1230 blk_finish_plug block/blk-core.c:1257 [inline] __submit_bio+0x28d/0x580 block/blk-core.c:649 __submit_bio_noacct_mq block/blk-core.c:722 [inline] submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:753 submit_bh fs/buffer.c:2842 [inline] block_read_full_folio+0x599/0x830 fs/buffer.c:2444 filemap_read_folio+0x137/0x3b0 mm/filemap.c:2502 do_read_cache_folio+0x358/0x590 mm/filemap.c:4107 read_mapping_folio include/linux/pagemap.h:1028 [inline] read_part_sector+0xb6/0x2b0 block/partitions/core.c:723 adfspart_check_ICS+0xa5/0xa40 block/partitions/acorn.c:360 check_partition block/partitions/core.c:142 [inline] blk_add_partitions block/partitions/core.c:590 [inline] bdev_disk_changed+0x7ba/0x1550 block/partitions/core.c:694 blkdev_get_whole+0x380/0x510 block/bdev.c:764 bdev_open+0x31e/0xd30 block/bdev.c:973 blkdev_open+0x470/0x610 block/fops.c:697 do_dentry_open+0x785/0x14e0 fs/open.c:949 vfs_open+0x3b/0x340 fs/open.c:1081 do_open fs/namei.c:4693 [inline] path_openat+0x2e08/0x3860 fs/namei.c:4852 do_file_open+0x23e/0x4a0 fs/namei.c:4881 do_sys_openat2+0x113/0x200 fs/open.c:1366 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1383 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #4 (set->srcu){.+.+}-{0:0}: srcu_lock_sync include/linux/srcu.h:199 [inline] __synchronize_srcu+0xca/0x3e0 kernel/rcu/srcutree.c:1505 elevator_switch+0x1e8/0x7a0 block/elevator.c:576 elevator_change+0x2cc/0x450 block/elevator.c:681 elevator_set_default+0x36c/0x430 block/elevator.c:754 blk_register_queue+0x3e9/0x4e0 block/blk-sysfs.c:987 __add_disk+0x677/0xd50 block/genhd.c:528 add_disk_fwnode+0xfb/0x480 block/genhd.c:597 add_disk include/linux/blkdev.h:793 [inline] nbd_dev_add+0x72c/0xb50 drivers/block/nbd.c:1984 nbd_init+0x168/0x1f0 drivers/block/nbd.c:2692 do_one_initcall+0x250/0x870 init/main.c:1386 do_initcall_level+0x104/0x190 init/main.c:1448 do_initcalls+0x59/0xa0 init/main.c:1464 kernel_init_freeable+0x2a6/0x3e0 init/main.c:1696 kernel_init+0x1d/0x1d0 init/main.c:1586 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #3 (&q->elevator_lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:632 [inline] __mutex_lock+0x19e/0x1420 kernel/locking/mutex.c:794 elevator_change+0x1b3/0x450 block/elevator.c:679 elevator_set_none+0xb5/0x140 block/elevator.c:769 blk_mq_elv_switch_none block/blk-mq.c:5131 [inline] __blk_mq_update_nr_hw_queues block/blk-mq.c:5176 [inline] blk_mq_update_nr_hw_queues+0x5e7/0x1a60 block/blk-mq.c:5241 nbd_start_device+0x17f/0xb10 drivers/block/nbd.c:1489 nbd_genl_connect+0x165b/0x1cf0 drivers/block/nbd.c:2239 genl_family_rcv_msg_doit+0x22a/0x330 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x61c/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x80f/0x9b0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec+0x112/0x150 net/socket.c:796 __sock_sendmsg net/socket.c:811 [inline] ____sys_sendmsg+0x589/0x8c0 net/socket.c:2668 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2722 __sys_sendmsg net/socket.c:2754 [inline] __do_sys_sendmsg net/socket.c:2759 [inline] __se_sys_sendmsg net/socket.c:2757 [inline] __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2757 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&q->q_usage_counter(io)#49){++++}-{0:0}: blk_alloc_queue+0x546/0x680 block/blk-core.c:461 blk_mq_alloc_queue block/blk-mq.c:4450 [inline] __blk_mq_alloc_disk+0x197/0x390 block/blk-mq.c:4497 nbd_dev_add+0x499/0xb50 drivers/block/nbd.c:1954 nbd_init+0x168/0x1f0 drivers/block/nbd.c:2692 do_one_initcall+0x250/0x870 init/main.c:1386 do_initcall_level+0x104/0x190 init/main.c:1448 do_initcalls+0x59/0xa0 init/main.c:1464 kernel_init_freeable+0x2a6/0x3e0 init/main.c:1696 kernel_init+0x1d/0x1d0 init/main.c:1586 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #1 (fs_reclaim){+.+.}-{0:0}: __fs_reclaim_acquire mm/page_alloc.c:4312 [inline] fs_reclaim_acquire+0x71/0x100 mm/page_alloc.c:4326 might_alloc include/linux/sched/mm.h:317 [inline] slab_pre_alloc_hook mm/slub.c:4520 [inline] slab_alloc_node mm/slub.c:4875 [inline] kmem_cache_alloc_node_noprof+0x4a/0x690 mm/slub.c:4950 __alloc_skb+0x1d0/0x7d0 net/core/skbuff.c:702 alloc_skb include/linux/skbuff.h:1383 [inline] __ip6_append_data+0x2a44/0x3c50 net/ipv6/ip6_output.c:1669 ip6_append_data+0x10f/0x2a0 net/ipv6/ip6_output.c:1857 rawv6_sendmsg+0x12d3/0x18e0 net/ipv6/raw.c:912 sock_sendmsg_nosec+0xf9/0x150 net/socket.c:796 __sock_sendmsg net/socket.c:811 [inline] ____sys_sendmsg+0x589/0x8c0 net/socket.c:2668 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2722 __sys_sendmsg net/socket.c:2754 [inline] __do_sys_sendmsg net/socket.c:2759 [inline] __se_sys_sendmsg net/socket.c:2757 [inline] __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2757 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (sk_lock-AF_INET6){+.+.}-{0:0}: check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x15a5/0x2cf0 kernel/locking/lockdep.c:5237 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868 lock_sock_nested+0x41/0x100 net/core/sock.c:3780 lock_sock include/net/sock.h:1713 [inline] inet_shutdown+0x6a/0x390 net/ipv4/af_inet.c:915 nbd_mark_nsock_dead+0x2e9/0x560 drivers/block/nbd.c:318 recv_work+0x1c2e/0x1d40 drivers/block/nbd.c:1021 process_one_work+0x9a3/0x1710 kernel/workqueue.c:3288 process_scheduled_works kernel/workqueue.c:3379 [inline] worker_thread+0xba8/0x11e0 kernel/workqueue.c:3465 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 other info that might help us debug this: Chain exists of: sk_lock-AF_INET6 --> &cmd->lock --> &nsock->tx_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&nsock->tx_lock); lock(&cmd->lock); lock(&nsock->tx_lock); lock(sk_lock-AF_INET6); *** DEADLOCK *** 3 locks held by kworker/u9:2/5924: #0: ffff888027b98140 ((wq_completion)nbd0-recv){+.+.}-{0:0}, at: process_one_work+0x890/0x1710 kernel/workqueue.c:3260 #1: ffffc900037a7c40 ((work_completion)(&args->work)#3){+.+.}-{0:0}, at: process_one_work+0x8b7/0x1710 kernel/workqueue.c:3261 #2: ffff888079bd1a68 (&nsock->tx_lock){+.+.}-{4:4}, at: recv_work+0x1c19/0x1d40 drivers/block/nbd.c:1020 stack backtrace: CPU: 1 UID: 0 PID: 5924 Comm: kworker/u9:2 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Workqueue: nbd0-recv recv_work Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_circular_bug+0x2e1/0x300 kernel/locking/lockdep.c:2043 check_noncircular+0x12e/0x150 kernel/locking/lockdep.c:2175 check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x15a5/0x2cf0 kernel/locking/lockdep.c:5237 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868 lock_sock_nested+0x41/0x100 net/core/sock.c:3780 lock_sock include/net/sock.h:1713 [inline] inet_shutdown+0x6a/0x390 net/ipv4/af_inet.c:915 nbd_mark_nsock_dead+0x2e9/0x560 drivers/block/nbd.c:318 recv_work+0x1c2e/0x1d40 drivers/block/nbd.c:1021 process_one_work+0x9a3/0x1710 kernel/workqueue.c:3288 process_scheduled_works kernel/workqueue.c:3379 [inline] worker_thread+0xba8/0x11e0 kernel/workqueue.c:3465 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 block nbd2: Receive control failed (result -104) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd6: Receive control failed (result -104) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd9: Receive control failed (result -104) block nbd0: Receive control failed (result -107) block nbd11: Receive control failed (result -104) block nbd12: Receive control failed (result -104) block nbd0: Receive control failed (result -107) block nbd14: Receive control failed (result -32) block nbd15: Receive control failed (result -32) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd21: Receive control failed (result -32) block nbd22: Receive control failed (result -32) block nbd0: Receive control failed (result -107) block nbd24: Receive control failed (result -32) block nbd25: Receive control failed (result -32) block nbd0: Receive control failed (result -107) block nbd27: Receive control failed (result -32) block nbd28: Receive control failed (result -32) block nbd29: Receive control failed (result -32) block nbd0: Receive control failed (result -107) block nbd31: Receive control failed (result -32) block nbd32: Receive control failed (result -32) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd35: Receive control failed (result -32) final repro crashed as (corrupted=false): block nbd0: Receive control failed (result -107) ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ kworker/u9:2/5924 is trying to acquire lock: ffff88802acc2ae0 (sk_lock-AF_INET6){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1713 [inline] ffff88802acc2ae0 (sk_lock-AF_INET6){+.+.}-{0:0}, at: inet_shutdown+0x6a/0x390 net/ipv4/af_inet.c:915 but task is already holding lock: ffff888079bd1a68 (&nsock->tx_lock){+.+.}-{4:4}, at: recv_work+0x1c19/0x1d40 drivers/block/nbd.c:1020 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #6 (&nsock->tx_lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:632 [inline] __mutex_lock+0x19e/0x1420 kernel/locking/mutex.c:794 nbd_handle_cmd drivers/block/nbd.c:1143 [inline] nbd_queue_rq+0x37b/0x1100 drivers/block/nbd.c:1207 blk_mq_dispatch_rq_list+0xa70/0x1910 block/blk-mq.c:2148 __blk_mq_do_dispatch_sched block/blk-mq-sched.c:168 [inline] blk_mq_do_dispatch_sched block/blk-mq-sched.c:182 [inline] __blk_mq_sched_dispatch_requests+0xdcc/0x1600 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xd7/0x190 block/blk-mq-sched.c:329 blk_mq_run_hw_queue+0x348/0x4f0 block/blk-mq.c:2386 blk_mq_dispatch_list+0xd16/0xe10 include/linux/spinlock.h:-1 blk_mq_flush_plug_list+0x48d/0x570 block/blk-mq.c:2997 __blk_flush_plug+0x3ed/0x4d0 block/blk-core.c:1230 blk_finish_plug block/blk-core.c:1257 [inline] __submit_bio+0x28d/0x580 block/blk-core.c:649 __submit_bio_noacct_mq block/blk-core.c:722 [inline] submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:753 submit_bh fs/buffer.c:2842 [inline] block_read_full_folio+0x599/0x830 fs/buffer.c:2444 filemap_read_folio+0x137/0x3b0 mm/filemap.c:2502 do_read_cache_folio+0x358/0x590 mm/filemap.c:4107 read_mapping_folio include/linux/pagemap.h:1028 [inline] read_part_sector+0xb6/0x2b0 block/partitions/core.c:723 adfspart_check_ICS+0xa5/0xa40 block/partitions/acorn.c:360 check_partition block/partitions/core.c:142 [inline] blk_add_partitions block/partitions/core.c:590 [inline] bdev_disk_changed+0x7ba/0x1550 block/partitions/core.c:694 blkdev_get_whole+0x380/0x510 block/bdev.c:764 bdev_open+0x31e/0xd30 block/bdev.c:973 blkdev_open+0x470/0x610 block/fops.c:697 do_dentry_open+0x785/0x14e0 fs/open.c:949 vfs_open+0x3b/0x340 fs/open.c:1081 do_open fs/namei.c:4693 [inline] path_openat+0x2e08/0x3860 fs/namei.c:4852 do_file_open+0x23e/0x4a0 fs/namei.c:4881 do_sys_openat2+0x113/0x200 fs/open.c:1366 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1383 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #5 (&cmd->lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:632 [inline] __mutex_lock+0x19e/0x1420 kernel/locking/mutex.c:794 nbd_queue_rq+0xc6/0x1100 drivers/block/nbd.c:1199 blk_mq_dispatch_rq_list+0xa70/0x1910 block/blk-mq.c:2148 __blk_mq_do_dispatch_sched block/blk-mq-sched.c:168 [inline] blk_mq_do_dispatch_sched block/blk-mq-sched.c:182 [inline] __blk_mq_sched_dispatch_requests+0xdcc/0x1600 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xd7/0x190 block/blk-mq-sched.c:329 blk_mq_run_hw_queue+0x348/0x4f0 block/blk-mq.c:2386 blk_mq_dispatch_list+0xd16/0xe10 include/linux/spinlock.h:-1 blk_mq_flush_plug_list+0x48d/0x570 block/blk-mq.c:2997 __blk_flush_plug+0x3ed/0x4d0 block/blk-core.c:1230 blk_finish_plug block/blk-core.c:1257 [inline] __submit_bio+0x28d/0x580 block/blk-core.c:649 __submit_bio_noacct_mq block/blk-core.c:722 [inline] submit_bio_noacct_nocheck+0x2f4/0xa40 block/blk-core.c:753 submit_bh fs/buffer.c:2842 [inline] block_read_full_folio+0x599/0x830 fs/buffer.c:2444 filemap_read_folio+0x137/0x3b0 mm/filemap.c:2502 do_read_cache_folio+0x358/0x590 mm/filemap.c:4107 read_mapping_folio include/linux/pagemap.h:1028 [inline] read_part_sector+0xb6/0x2b0 block/partitions/core.c:723 adfspart_check_ICS+0xa5/0xa40 block/partitions/acorn.c:360 check_partition block/partitions/core.c:142 [inline] blk_add_partitions block/partitions/core.c:590 [inline] bdev_disk_changed+0x7ba/0x1550 block/partitions/core.c:694 blkdev_get_whole+0x380/0x510 block/bdev.c:764 bdev_open+0x31e/0xd30 block/bdev.c:973 blkdev_open+0x470/0x610 block/fops.c:697 do_dentry_open+0x785/0x14e0 fs/open.c:949 vfs_open+0x3b/0x340 fs/open.c:1081 do_open fs/namei.c:4693 [inline] path_openat+0x2e08/0x3860 fs/namei.c:4852 do_file_open+0x23e/0x4a0 fs/namei.c:4881 do_sys_openat2+0x113/0x200 fs/open.c:1366 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1383 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #4 (set->srcu){.+.+}-{0:0}: srcu_lock_sync include/linux/srcu.h:199 [inline] __synchronize_srcu+0xca/0x3e0 kernel/rcu/srcutree.c:1505 elevator_switch+0x1e8/0x7a0 block/elevator.c:576 elevator_change+0x2cc/0x450 block/elevator.c:681 elevator_set_default+0x36c/0x430 block/elevator.c:754 blk_register_queue+0x3e9/0x4e0 block/blk-sysfs.c:987 __add_disk+0x677/0xd50 block/genhd.c:528 add_disk_fwnode+0xfb/0x480 block/genhd.c:597 add_disk include/linux/blkdev.h:793 [inline] nbd_dev_add+0x72c/0xb50 drivers/block/nbd.c:1984 nbd_init+0x168/0x1f0 drivers/block/nbd.c:2692 do_one_initcall+0x250/0x870 init/main.c:1386 do_initcall_level+0x104/0x190 init/main.c:1448 do_initcalls+0x59/0xa0 init/main.c:1464 kernel_init_freeable+0x2a6/0x3e0 init/main.c:1696 kernel_init+0x1d/0x1d0 init/main.c:1586 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #3 (&q->elevator_lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:632 [inline] __mutex_lock+0x19e/0x1420 kernel/locking/mutex.c:794 elevator_change+0x1b3/0x450 block/elevator.c:679 elevator_set_none+0xb5/0x140 block/elevator.c:769 blk_mq_elv_switch_none block/blk-mq.c:5131 [inline] __blk_mq_update_nr_hw_queues block/blk-mq.c:5176 [inline] blk_mq_update_nr_hw_queues+0x5e7/0x1a60 block/blk-mq.c:5241 nbd_start_device+0x17f/0xb10 drivers/block/nbd.c:1489 nbd_genl_connect+0x165b/0x1cf0 drivers/block/nbd.c:2239 genl_family_rcv_msg_doit+0x22a/0x330 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x61c/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x80f/0x9b0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec+0x112/0x150 net/socket.c:796 __sock_sendmsg net/socket.c:811 [inline] ____sys_sendmsg+0x589/0x8c0 net/socket.c:2668 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2722 __sys_sendmsg net/socket.c:2754 [inline] __do_sys_sendmsg net/socket.c:2759 [inline] __se_sys_sendmsg net/socket.c:2757 [inline] __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2757 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&q->q_usage_counter(io)#49){++++}-{0:0}: blk_alloc_queue+0x546/0x680 block/blk-core.c:461 blk_mq_alloc_queue block/blk-mq.c:4450 [inline] __blk_mq_alloc_disk+0x197/0x390 block/blk-mq.c:4497 nbd_dev_add+0x499/0xb50 drivers/block/nbd.c:1954 nbd_init+0x168/0x1f0 drivers/block/nbd.c:2692 do_one_initcall+0x250/0x870 init/main.c:1386 do_initcall_level+0x104/0x190 init/main.c:1448 do_initcalls+0x59/0xa0 init/main.c:1464 kernel_init_freeable+0x2a6/0x3e0 init/main.c:1696 kernel_init+0x1d/0x1d0 init/main.c:1586 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #1 (fs_reclaim){+.+.}-{0:0}: __fs_reclaim_acquire mm/page_alloc.c:4312 [inline] fs_reclaim_acquire+0x71/0x100 mm/page_alloc.c:4326 might_alloc include/linux/sched/mm.h:317 [inline] slab_pre_alloc_hook mm/slub.c:4520 [inline] slab_alloc_node mm/slub.c:4875 [inline] kmem_cache_alloc_node_noprof+0x4a/0x690 mm/slub.c:4950 __alloc_skb+0x1d0/0x7d0 net/core/skbuff.c:702 alloc_skb include/linux/skbuff.h:1383 [inline] __ip6_append_data+0x2a44/0x3c50 net/ipv6/ip6_output.c:1669 ip6_append_data+0x10f/0x2a0 net/ipv6/ip6_output.c:1857 rawv6_sendmsg+0x12d3/0x18e0 net/ipv6/raw.c:912 sock_sendmsg_nosec+0xf9/0x150 net/socket.c:796 __sock_sendmsg net/socket.c:811 [inline] ____sys_sendmsg+0x589/0x8c0 net/socket.c:2668 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2722 __sys_sendmsg net/socket.c:2754 [inline] __do_sys_sendmsg net/socket.c:2759 [inline] __se_sys_sendmsg net/socket.c:2757 [inline] __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2757 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (sk_lock-AF_INET6){+.+.}-{0:0}: check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x15a5/0x2cf0 kernel/locking/lockdep.c:5237 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868 lock_sock_nested+0x41/0x100 net/core/sock.c:3780 lock_sock include/net/sock.h:1713 [inline] inet_shutdown+0x6a/0x390 net/ipv4/af_inet.c:915 nbd_mark_nsock_dead+0x2e9/0x560 drivers/block/nbd.c:318 recv_work+0x1c2e/0x1d40 drivers/block/nbd.c:1021 process_one_work+0x9a3/0x1710 kernel/workqueue.c:3288 process_scheduled_works kernel/workqueue.c:3379 [inline] worker_thread+0xba8/0x11e0 kernel/workqueue.c:3465 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 other info that might help us debug this: Chain exists of: sk_lock-AF_INET6 --> &cmd->lock --> &nsock->tx_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&nsock->tx_lock); lock(&cmd->lock); lock(&nsock->tx_lock); lock(sk_lock-AF_INET6); *** DEADLOCK *** 3 locks held by kworker/u9:2/5924: #0: ffff888027b98140 ((wq_completion)nbd0-recv){+.+.}-{0:0}, at: process_one_work+0x890/0x1710 kernel/workqueue.c:3260 #1: ffffc900037a7c40 ((work_completion)(&args->work)#3){+.+.}-{0:0}, at: process_one_work+0x8b7/0x1710 kernel/workqueue.c:3261 #2: ffff888079bd1a68 (&nsock->tx_lock){+.+.}-{4:4}, at: recv_work+0x1c19/0x1d40 drivers/block/nbd.c:1020 stack backtrace: CPU: 1 UID: 0 PID: 5924 Comm: kworker/u9:2 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Workqueue: nbd0-recv recv_work Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_circular_bug+0x2e1/0x300 kernel/locking/lockdep.c:2043 check_noncircular+0x12e/0x150 kernel/locking/lockdep.c:2175 check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x15a5/0x2cf0 kernel/locking/lockdep.c:5237 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868 lock_sock_nested+0x41/0x100 net/core/sock.c:3780 lock_sock include/net/sock.h:1713 [inline] inet_shutdown+0x6a/0x390 net/ipv4/af_inet.c:915 nbd_mark_nsock_dead+0x2e9/0x560 drivers/block/nbd.c:318 recv_work+0x1c2e/0x1d40 drivers/block/nbd.c:1021 process_one_work+0x9a3/0x1710 kernel/workqueue.c:3288 process_scheduled_works kernel/workqueue.c:3379 [inline] worker_thread+0xba8/0x11e0 kernel/workqueue.c:3465 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 block nbd2: Receive control failed (result -104) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd6: Receive control failed (result -104) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd9: Receive control failed (result -104) block nbd0: Receive control failed (result -107) block nbd11: Receive control failed (result -104) block nbd12: Receive control failed (result -104) block nbd0: Receive control failed (result -107) block nbd14: Receive control failed (result -32) block nbd15: Receive control failed (result -32) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd21: Receive control failed (result -32) block nbd22: Receive control failed (result -32) block nbd0: Receive control failed (result -107) block nbd24: Receive control failed (result -32) block nbd25: Receive control failed (result -32) block nbd0: Receive control failed (result -107) block nbd27: Receive control failed (result -32) block nbd28: Receive control failed (result -32) block nbd29: Receive control failed (result -32) block nbd0: Receive control failed (result -107) block nbd31: Receive control failed (result -32) block nbd32: Receive control failed (result -32) block nbd0: Receive control failed (result -107) block nbd0: Receive control failed (result -107) block nbd35: Receive control failed (result -32)