Extracting prog: 3m52.729854004s Minimizing prog: 3h4m0.212583788s Simplifying prog options: 0s Extracting C: 46.598884759s Simplifying C: 11m41.858682s 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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r6, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r7}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs: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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r6, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r7}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program crashed: possible deadlock in elevator_change single: successfully extracted reproducer found reproducer with 9 syscalls minimizing guilty program testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r6, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, 0x0, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r6}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r5, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r6}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r4, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8}}, {0xc, 0x1, 0x0, 0x1, {0x8}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r5}}, {0x24, 0x1, 0x0, 0x1, {0x8}}, {0xc, 0x1, 0x0, 0x1, {0x8}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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$nbd-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r3, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r0}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r0}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r1}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r1}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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$NBD_CMD_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r5, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r6}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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$NBD_CMD_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r1, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r5, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r6}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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$NBD_CMD_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r0, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r1, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r5, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r6}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT 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_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r6, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r7}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r5, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r6}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r4, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r1}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r1}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r5}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r4, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r1}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r1}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r5}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={0x0, 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r4, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r1}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r1}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r5}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r4, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r1}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r1}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r5}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r2}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r6, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r7}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB, @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r6, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r7}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r6, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r7}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB, @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r6, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r7}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r6, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r7}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r4, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8}}, {0xc, 0x1, 0x0, 0x1, {0x8}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r5}}, {0x24, 0x1, 0x0, 0x1, {0x8}}, {0xc, 0x1, 0x0, 0x1, {0x8}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r6, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r7}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r6, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) sendmsg$NBD_CMD_CONNECT(r3, 0x0, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000001ac0)={0x0, 0x0, 0x0}, 0x4) program crashed: lost connection to test machine suppressed program crash: lost connection to test machine testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={0x0}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x14, r4, 0x1, 0x70bd2c, 0xffe}, 0x14}}, 0x4) program did not crash testing program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x30, r4, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x30}}, 0x4) program did not crash extracting C reproducer testing compiled C program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change simplifying C reproducer testing compiled C program (duration=6m0s, {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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false 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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false 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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154: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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154: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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154: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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154: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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154: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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r6, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r7}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program crashed: possible deadlock in elevator_change validation run: crashed=true testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154: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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r6, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r7}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program crashed: possible deadlock in elevator_change validation run: crashed=true testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154: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_RECONFIGURE-socketpair-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000180)=ANY=[@ANYBLOB="8c000000", @ANYRES16=r1, @ANYBLOB="010027bd7000ffdbdf25030000000c00040003000000000000000c00080001000000000000000c00020007000000000000000c00050008010000000000000c00060000000000000000000c00020072af000000000000280007800c00018008000100", @ANYRES32=r2, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c000180fffffeff", @ANYRES32, @ANYBLOB="0800010000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x24060801}, 0x0) socketpair(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000080)={0x6c, r6, 0x1, 0x70bd2c, 0xffe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SOCKETS={0x40, 0x7, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r3}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r7}}, {0x24, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}, {0xc, 0x1, 0x0, 0x1, {0x8, 0x1, r4}}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}}, 0x4) program crashed: possible deadlock in elevator_change validation run: crashed=true reproducing took 3h25m40.677153038s repro crashed as (corrupted=false): nbd0: detected capacity change from 0 to 87 block nbd0: reconnected socket ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.0.18/5957 is trying to acquire lock: ffff888027f1c280 (&q->elevator_lock){+.+.}-{4:4}, at: elevator_change+0x1af/0x480 block/elevator.c:679 but task is already holding lock: ffff888027f1bcf0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: blk_mq_freeze_queue include/linux/blk-mq.h:956 [inline] ffff888027f1bcf0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: elevator_change+0x194/0x480 block/elevator.c:668 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #6 (&q->q_usage_counter(io)#50){++++}-{0:0}: blk_alloc_queue+0x54c/0x690 block/blk-core.c:504 blk_mq_alloc_queue block/blk-mq.c:4420 [inline] __blk_mq_alloc_disk+0x194/0x390 block/blk-mq.c:4467 nbd_dev_add+0x494/0xb60 drivers/block/nbd.c:1991 nbd_init+0x15f/0x1e0 drivers/block/nbd.c:2729 do_one_initcall+0x250/0x870 init/main.c:1357 do_initcall_level+0x10a/0x1a0 init/main.c:1419 do_initcalls+0x59/0xa0 init/main.c:1435 kernel_init_freeable+0x29d/0x3e0 init/main.c:1670 kernel_init+0x22/0x1d0 init/main.c:1560 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #5 (fs_reclaim){+.+.}-{0:0}: __fs_reclaim_acquire mm/page_alloc.c:4338 [inline] fs_reclaim_acquire+0x71/0x100 mm/page_alloc.c:4352 might_alloc include/linux/sched/mm.h:317 [inline] slab_pre_alloc_hook mm/slub.c:4561 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_node_noprof+0x67/0x670 mm/slub.c:5501 _kmalloc_node_noprof include/linux/slab.h:1174 [inline] alloc_worker kernel/workqueue.c:2743 [inline] create_worker+0x112/0x7b0 kernel/workqueue.c:2886 workqueue_prepare_cpu+0xe4/0x170 kernel/workqueue.c:6898 cpuhp_invoke_callback+0x434/0x810 kernel/cpu.c:194 __cpuhp_invoke_callback_range kernel/cpu.c:972 [inline] cpuhp_invoke_callback_range kernel/cpu.c:996 [inline] cpuhp_up_callbacks kernel/cpu.c:1027 [inline] _cpu_up+0x2ce/0x5b0 kernel/cpu.c:1674 cpu_up+0x1d2/0x220 kernel/cpu.c:1706 cpuhp_bringup_mask+0xb2/0x1a0 kernel/cpu.c:1772 cpuhp_bringup_cpus_parallel+0x109/0x120 kernel/cpu.c:1862 bringup_nonboot_cpus+0x17/0x30 kernel/cpu.c:1876 smp_init+0x32/0x110 kernel/smp.c:1026 kernel_init_freeable+0x27f/0x3e0 init/main.c:1662 kernel_init+0x22/0x1d0 init/main.c:1560 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #4 (cpu_hotplug_lock){++++}-{0:0}: percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline] percpu_down_read include/linux/percpu-rwsem.h:77 [inline] cpus_read_lock+0x42/0x160 kernel/cpu.c:490 static_key_slow_inc+0x12/0x30 kernel/jump_label.c:190 nbd_reconnect_socket drivers/block/nbd.c:1379 [inline] nbd_genl_reconfigure+0x1309/0x1ea0 drivers/block/nbd.c:2468 genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x7f5/0x990 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:810 __sock_sendmsg net/socket.c:825 [inline] ____sys_sendmsg+0x565/0x870 net/socket.c:2727 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2781 __sys_sendmsg net/socket.c:2813 [inline] __do_sys_sendmsg net/socket.c:2818 [inline] __se_sys_sendmsg net/socket.c:2816 [inline] __x64_sys_sendmsg+0x1b7/0x290 net/socket.c:2816 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x17b/0x530 arch/x86/entry/syscall_64.c:85 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #3 (&nsock->tx_lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/rtmutex_api.c:559 [inline] mutex_lock_nested+0x5a/0x1d0 kernel/locking/rtmutex_api.c:578 nbd_handle_cmd drivers/block/nbd.c:1143 [inline] nbd_queue_rq+0x373/0x1150 drivers/block/nbd.c:1207 blk_mq_dispatch_rq_list+0x4af/0x1a00 block/blk-mq.c:2117 __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+0xd45/0x1590 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xda/0x1a0 block/blk-mq-sched.c:329 blk_mq_run_work_fn+0x16f/0x300 block/blk-mq.c:2532 process_one_work+0xaaf/0x1480 kernel/workqueue.c:3379 process_scheduled_works kernel/workqueue.c:3462 [inline] worker_thread+0xb05/0x10d0 kernel/workqueue.c:3543 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #2 (&cmd->lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/rtmutex_api.c:559 [inline] mutex_lock_nested+0x5a/0x1d0 kernel/locking/rtmutex_api.c:578 nbd_queue_rq+0xc1/0x1150 drivers/block/nbd.c:1199 blk_mq_dispatch_rq_list+0x4af/0x1a00 block/blk-mq.c:2117 __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+0xd45/0x1590 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xda/0x1a0 block/blk-mq-sched.c:329 blk_mq_run_work_fn+0x16f/0x300 block/blk-mq.c:2532 process_one_work+0xaaf/0x1480 kernel/workqueue.c:3379 process_scheduled_works kernel/workqueue.c:3462 [inline] worker_thread+0xb05/0x10d0 kernel/workqueue.c:3543 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #1 (set->srcu){.+.+}-{0:0}: srcu_lock_sync include/linux/srcu.h:199 [inline] __synchronize_srcu+0xc9/0x2f0 kernel/rcu/srcutree.c:1481 elevator_switch+0x1e8/0x7b0 block/elevator.c:576 elevator_change+0x2fa/0x480 block/elevator.c:681 elevator_set_default+0x375/0x440 block/elevator.c:754 blk_register_queue+0x3f3/0x4e0 block/blk-sysfs.c:992 __add_disk+0x6cb/0xe30 block/genhd.c:524 add_disk_fwnode+0x100/0x3a0 block/genhd.c:593 add_disk include/linux/blkdev.h:798 [inline] nbd_dev_add+0x733/0xb60 drivers/block/nbd.c:2021 nbd_init+0x15f/0x1e0 drivers/block/nbd.c:2729 do_one_initcall+0x250/0x870 init/main.c:1357 do_initcall_level+0x10a/0x1a0 init/main.c:1419 do_initcalls+0x59/0xa0 init/main.c:1435 kernel_init_freeable+0x29d/0x3e0 init/main.c:1670 kernel_init+0x22/0x1d0 init/main.c:1560 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #0 (&q->elevator_lock){+.+.}-{4:4}: check_prev_add kernel/locking/lockdep.c:3181 [inline] check_prevs_add kernel/locking/lockdep.c:3300 [inline] validate_chain kernel/locking/lockdep.c:3924 [inline] __lock_acquire+0x15ff/0x2e40 kernel/locking/lockdep.c:5254 lock_acquire+0x115/0x350 kernel/locking/lockdep.c:5906 __mutex_lock_common kernel/locking/rtmutex_api.c:559 [inline] mutex_lock_nested+0x5a/0x1d0 kernel/locking/rtmutex_api.c:578 elevator_change+0x1af/0x480 block/elevator.c:679 elevator_set_none+0xb5/0x140 block/elevator.c:769 blk_mq_elv_switch_none block/blk-mq.c:5101 [inline] __blk_mq_update_nr_hw_queues block/blk-mq.c:5146 [inline] blk_mq_update_nr_hw_queues+0x60f/0x1a20 block/blk-mq.c:5211 nbd_start_device+0x189/0xb30 drivers/block/nbd.c:1526 nbd_genl_connect+0x1599/0x1c00 drivers/block/nbd.c:2276 genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x7f5/0x990 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:810 __sock_sendmsg net/socket.c:825 [inline] ____sys_sendmsg+0x565/0x870 net/socket.c:2727 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2781 __sys_sendmsg net/socket.c:2813 [inline] __do_sys_sendmsg net/socket.c:2818 [inline] __se_sys_sendmsg net/socket.c:2816 [inline] __x64_sys_sendmsg+0x1b7/0x290 net/socket.c:2816 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x17b/0x530 arch/x86/entry/syscall_64.c:85 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &q->elevator_lock --> fs_reclaim --> &q->q_usage_counter(io)#50 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&q->q_usage_counter(io)#50); lock(fs_reclaim); lock(&q->q_usage_counter(io)#50); lock(&q->elevator_lock); *** DEADLOCK *** locks held by syz.0.18/5957: 6, last CPU#0: #0: ffffffff8f835c20 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1217 #1: ffffffff8f835a38 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f835a38 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f835a38 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10b/0x7a0 net/netlink/genetlink.c:1208 #2: ffff888027fed1b0 (&set->update_nr_hwq_lock){++++}-{4:4}, at: blk_mq_update_nr_hw_queues+0xbd/0x1a20 block/blk-mq.c:5209 #3: ffff888027fed0c8 (&set->tag_list_lock){+.+.}-{4:4}, at: blk_mq_update_nr_hw_queues+0xd0/0x1a20 block/blk-mq.c:5210 #4: ffff888027f1bcf0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: blk_mq_freeze_queue include/linux/blk-mq.h:956 [inline] #4: ffff888027f1bcf0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: elevator_change+0x194/0x480 block/elevator.c:668 #5: ffff888027f1bd28 (&q->q_usage_counter(queue)#34){+.+.}-{0:0}, at: blk_mq_freeze_queue include/linux/blk-mq.h:956 [inline] #5: ffff888027f1bd28 (&q->q_usage_counter(queue)#34){+.+.}-{0:0}, at: elevator_change+0x194/0x480 block/elevator.c:668 stack backtrace: CPU: 0 UID: 0 PID: 5957 Comm: syz.0.18 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_circular_bug+0x2e2/0x300 kernel/locking/lockdep.c:2059 check_noncircular+0x12f/0x150 kernel/locking/lockdep.c:2191 check_prev_add kernel/locking/lockdep.c:3181 [inline] check_prevs_add kernel/locking/lockdep.c:3300 [inline] validate_chain kernel/locking/lockdep.c:3924 [inline] __lock_acquire+0x15ff/0x2e40 kernel/locking/lockdep.c:5254 lock_acquire+0x115/0x350 kernel/locking/lockdep.c:5906 __mutex_lock_common kernel/locking/rtmutex_api.c:559 [inline] mutex_lock_nested+0x5a/0x1d0 kernel/locking/rtmutex_api.c:578 elevator_change+0x1af/0x480 block/elevator.c:679 elevator_set_none+0xb5/0x140 block/elevator.c:769 blk_mq_elv_switch_none block/blk-mq.c:5101 [inline] __blk_mq_update_nr_hw_queues block/blk-mq.c:5146 [inline] blk_mq_update_nr_hw_queues+0x60f/0x1a20 block/blk-mq.c:5211 nbd_start_device+0x189/0xb30 drivers/block/nbd.c:1526 nbd_genl_connect+0x1599/0x1c00 drivers/block/nbd.c:2276 genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x7f5/0x990 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:810 __sock_sendmsg net/socket.c:825 [inline] ____sys_sendmsg+0x565/0x870 net/socket.c:2727 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2781 __sys_sendmsg net/socket.c:2813 [inline] __do_sys_sendmsg net/socket.c:2818 [inline] __se_sys_sendmsg net/socket.c:2816 [inline] __x64_sys_sendmsg+0x1b7/0x290 net/socket.c:2816 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x17b/0x530 arch/x86/entry/syscall_64.c:85 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f27df23de99 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcc30cb788 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f27df4c5fa0 RCX: 00007f27df23de99 RDX: 0000000000000004 RSI: 0000200000001ac0 RDI: 0000000000000009 RBP: 00007f27df2d3eaf R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f27df4c5fac R14: 00007f27df4c5fa0 R15: 00007f27df4c5fa0 final repro crashed as (corrupted=false): nbd0: detected capacity change from 0 to 87 block nbd0: reconnected socket ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.0.18/5957 is trying to acquire lock: ffff888027f1c280 (&q->elevator_lock){+.+.}-{4:4}, at: elevator_change+0x1af/0x480 block/elevator.c:679 but task is already holding lock: ffff888027f1bcf0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: blk_mq_freeze_queue include/linux/blk-mq.h:956 [inline] ffff888027f1bcf0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: elevator_change+0x194/0x480 block/elevator.c:668 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #6 (&q->q_usage_counter(io)#50){++++}-{0:0}: blk_alloc_queue+0x54c/0x690 block/blk-core.c:504 blk_mq_alloc_queue block/blk-mq.c:4420 [inline] __blk_mq_alloc_disk+0x194/0x390 block/blk-mq.c:4467 nbd_dev_add+0x494/0xb60 drivers/block/nbd.c:1991 nbd_init+0x15f/0x1e0 drivers/block/nbd.c:2729 do_one_initcall+0x250/0x870 init/main.c:1357 do_initcall_level+0x10a/0x1a0 init/main.c:1419 do_initcalls+0x59/0xa0 init/main.c:1435 kernel_init_freeable+0x29d/0x3e0 init/main.c:1670 kernel_init+0x22/0x1d0 init/main.c:1560 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #5 (fs_reclaim){+.+.}-{0:0}: __fs_reclaim_acquire mm/page_alloc.c:4338 [inline] fs_reclaim_acquire+0x71/0x100 mm/page_alloc.c:4352 might_alloc include/linux/sched/mm.h:317 [inline] slab_pre_alloc_hook mm/slub.c:4561 [inline] slab_alloc_node mm/slub.c:4899 [inline] __kmalloc_cache_node_noprof+0x67/0x670 mm/slub.c:5501 _kmalloc_node_noprof include/linux/slab.h:1174 [inline] alloc_worker kernel/workqueue.c:2743 [inline] create_worker+0x112/0x7b0 kernel/workqueue.c:2886 workqueue_prepare_cpu+0xe4/0x170 kernel/workqueue.c:6898 cpuhp_invoke_callback+0x434/0x810 kernel/cpu.c:194 __cpuhp_invoke_callback_range kernel/cpu.c:972 [inline] cpuhp_invoke_callback_range kernel/cpu.c:996 [inline] cpuhp_up_callbacks kernel/cpu.c:1027 [inline] _cpu_up+0x2ce/0x5b0 kernel/cpu.c:1674 cpu_up+0x1d2/0x220 kernel/cpu.c:1706 cpuhp_bringup_mask+0xb2/0x1a0 kernel/cpu.c:1772 cpuhp_bringup_cpus_parallel+0x109/0x120 kernel/cpu.c:1862 bringup_nonboot_cpus+0x17/0x30 kernel/cpu.c:1876 smp_init+0x32/0x110 kernel/smp.c:1026 kernel_init_freeable+0x27f/0x3e0 init/main.c:1662 kernel_init+0x22/0x1d0 init/main.c:1560 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #4 (cpu_hotplug_lock){++++}-{0:0}: percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline] percpu_down_read include/linux/percpu-rwsem.h:77 [inline] cpus_read_lock+0x42/0x160 kernel/cpu.c:490 static_key_slow_inc+0x12/0x30 kernel/jump_label.c:190 nbd_reconnect_socket drivers/block/nbd.c:1379 [inline] nbd_genl_reconfigure+0x1309/0x1ea0 drivers/block/nbd.c:2468 genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x7f5/0x990 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:810 __sock_sendmsg net/socket.c:825 [inline] ____sys_sendmsg+0x565/0x870 net/socket.c:2727 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2781 __sys_sendmsg net/socket.c:2813 [inline] __do_sys_sendmsg net/socket.c:2818 [inline] __se_sys_sendmsg net/socket.c:2816 [inline] __x64_sys_sendmsg+0x1b7/0x290 net/socket.c:2816 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x17b/0x530 arch/x86/entry/syscall_64.c:85 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #3 (&nsock->tx_lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/rtmutex_api.c:559 [inline] mutex_lock_nested+0x5a/0x1d0 kernel/locking/rtmutex_api.c:578 nbd_handle_cmd drivers/block/nbd.c:1143 [inline] nbd_queue_rq+0x373/0x1150 drivers/block/nbd.c:1207 blk_mq_dispatch_rq_list+0x4af/0x1a00 block/blk-mq.c:2117 __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+0xd45/0x1590 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xda/0x1a0 block/blk-mq-sched.c:329 blk_mq_run_work_fn+0x16f/0x300 block/blk-mq.c:2532 process_one_work+0xaaf/0x1480 kernel/workqueue.c:3379 process_scheduled_works kernel/workqueue.c:3462 [inline] worker_thread+0xb05/0x10d0 kernel/workqueue.c:3543 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #2 (&cmd->lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/rtmutex_api.c:559 [inline] mutex_lock_nested+0x5a/0x1d0 kernel/locking/rtmutex_api.c:578 nbd_queue_rq+0xc1/0x1150 drivers/block/nbd.c:1199 blk_mq_dispatch_rq_list+0x4af/0x1a00 block/blk-mq.c:2117 __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+0xd45/0x1590 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xda/0x1a0 block/blk-mq-sched.c:329 blk_mq_run_work_fn+0x16f/0x300 block/blk-mq.c:2532 process_one_work+0xaaf/0x1480 kernel/workqueue.c:3379 process_scheduled_works kernel/workqueue.c:3462 [inline] worker_thread+0xb05/0x10d0 kernel/workqueue.c:3543 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #1 (set->srcu){.+.+}-{0:0}: srcu_lock_sync include/linux/srcu.h:199 [inline] __synchronize_srcu+0xc9/0x2f0 kernel/rcu/srcutree.c:1481 elevator_switch+0x1e8/0x7b0 block/elevator.c:576 elevator_change+0x2fa/0x480 block/elevator.c:681 elevator_set_default+0x375/0x440 block/elevator.c:754 blk_register_queue+0x3f3/0x4e0 block/blk-sysfs.c:992 __add_disk+0x6cb/0xe30 block/genhd.c:524 add_disk_fwnode+0x100/0x3a0 block/genhd.c:593 add_disk include/linux/blkdev.h:798 [inline] nbd_dev_add+0x733/0xb60 drivers/block/nbd.c:2021 nbd_init+0x15f/0x1e0 drivers/block/nbd.c:2729 do_one_initcall+0x250/0x870 init/main.c:1357 do_initcall_level+0x10a/0x1a0 init/main.c:1419 do_initcalls+0x59/0xa0 init/main.c:1435 kernel_init_freeable+0x29d/0x3e0 init/main.c:1670 kernel_init+0x22/0x1d0 init/main.c:1560 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #0 (&q->elevator_lock){+.+.}-{4:4}: check_prev_add kernel/locking/lockdep.c:3181 [inline] check_prevs_add kernel/locking/lockdep.c:3300 [inline] validate_chain kernel/locking/lockdep.c:3924 [inline] __lock_acquire+0x15ff/0x2e40 kernel/locking/lockdep.c:5254 lock_acquire+0x115/0x350 kernel/locking/lockdep.c:5906 __mutex_lock_common kernel/locking/rtmutex_api.c:559 [inline] mutex_lock_nested+0x5a/0x1d0 kernel/locking/rtmutex_api.c:578 elevator_change+0x1af/0x480 block/elevator.c:679 elevator_set_none+0xb5/0x140 block/elevator.c:769 blk_mq_elv_switch_none block/blk-mq.c:5101 [inline] __blk_mq_update_nr_hw_queues block/blk-mq.c:5146 [inline] blk_mq_update_nr_hw_queues+0x60f/0x1a20 block/blk-mq.c:5211 nbd_start_device+0x189/0xb30 drivers/block/nbd.c:1526 nbd_genl_connect+0x1599/0x1c00 drivers/block/nbd.c:2276 genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x7f5/0x990 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:810 __sock_sendmsg net/socket.c:825 [inline] ____sys_sendmsg+0x565/0x870 net/socket.c:2727 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2781 __sys_sendmsg net/socket.c:2813 [inline] __do_sys_sendmsg net/socket.c:2818 [inline] __se_sys_sendmsg net/socket.c:2816 [inline] __x64_sys_sendmsg+0x1b7/0x290 net/socket.c:2816 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x17b/0x530 arch/x86/entry/syscall_64.c:85 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &q->elevator_lock --> fs_reclaim --> &q->q_usage_counter(io)#50 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&q->q_usage_counter(io)#50); lock(fs_reclaim); lock(&q->q_usage_counter(io)#50); lock(&q->elevator_lock); *** DEADLOCK *** locks held by syz.0.18/5957: 6, last CPU#0: #0: ffffffff8f835c20 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1217 #1: ffffffff8f835a38 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff8f835a38 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff8f835a38 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x10b/0x7a0 net/netlink/genetlink.c:1208 #2: ffff888027fed1b0 (&set->update_nr_hwq_lock){++++}-{4:4}, at: blk_mq_update_nr_hw_queues+0xbd/0x1a20 block/blk-mq.c:5209 #3: ffff888027fed0c8 (&set->tag_list_lock){+.+.}-{4:4}, at: blk_mq_update_nr_hw_queues+0xd0/0x1a20 block/blk-mq.c:5210 #4: ffff888027f1bcf0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: blk_mq_freeze_queue include/linux/blk-mq.h:956 [inline] #4: ffff888027f1bcf0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: elevator_change+0x194/0x480 block/elevator.c:668 #5: ffff888027f1bd28 (&q->q_usage_counter(queue)#34){+.+.}-{0:0}, at: blk_mq_freeze_queue include/linux/blk-mq.h:956 [inline] #5: ffff888027f1bd28 (&q->q_usage_counter(queue)#34){+.+.}-{0:0}, at: elevator_change+0x194/0x480 block/elevator.c:668 stack backtrace: CPU: 0 UID: 0 PID: 5957 Comm: syz.0.18 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_circular_bug+0x2e2/0x300 kernel/locking/lockdep.c:2059 check_noncircular+0x12f/0x150 kernel/locking/lockdep.c:2191 check_prev_add kernel/locking/lockdep.c:3181 [inline] check_prevs_add kernel/locking/lockdep.c:3300 [inline] validate_chain kernel/locking/lockdep.c:3924 [inline] __lock_acquire+0x15ff/0x2e40 kernel/locking/lockdep.c:5254 lock_acquire+0x115/0x350 kernel/locking/lockdep.c:5906 __mutex_lock_common kernel/locking/rtmutex_api.c:559 [inline] mutex_lock_nested+0x5a/0x1d0 kernel/locking/rtmutex_api.c:578 elevator_change+0x1af/0x480 block/elevator.c:679 elevator_set_none+0xb5/0x140 block/elevator.c:769 blk_mq_elv_switch_none block/blk-mq.c:5101 [inline] __blk_mq_update_nr_hw_queues block/blk-mq.c:5146 [inline] blk_mq_update_nr_hw_queues+0x60f/0x1a20 block/blk-mq.c:5211 nbd_start_device+0x189/0xb30 drivers/block/nbd.c:1526 nbd_genl_connect+0x1599/0x1c00 drivers/block/nbd.c:2276 genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x7f5/0x990 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:810 __sock_sendmsg net/socket.c:825 [inline] ____sys_sendmsg+0x565/0x870 net/socket.c:2727 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2781 __sys_sendmsg net/socket.c:2813 [inline] __do_sys_sendmsg net/socket.c:2818 [inline] __se_sys_sendmsg net/socket.c:2816 [inline] __x64_sys_sendmsg+0x1b7/0x290 net/socket.c:2816 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x17b/0x530 arch/x86/entry/syscall_64.c:85 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f27df23de99 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcc30cb788 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f27df4c5fa0 RCX: 00007f27df23de99 RDX: 0000000000000004 RSI: 0000200000001ac0 RDI: 0000000000000009 RBP: 00007f27df2d3eaf R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f27df4c5fac R14: 00007f27df4c5fa0 R15: 00007f27df4c5fa0