Extracting prog: 1m21.204477558s Minimizing prog: 25m28.266455349s Simplifying prog options: 2m4.449412198s Extracting C: 22.097547778s Simplifying C: 0s 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 crashed: possible deadlock in kernfs_remove single: successfully extracted reproducer found reproducer with 9 syscalls minimizing guilty program testing program (duration=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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 did not crash testing program (duration=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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=41.223014454s, {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 pcpu_alloc_noprof a never seen crash title: possible deadlock in pcpu_alloc_noprof, ignore simplifying guilty program options testing program (duration=41.223014454s, {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 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 a never seen crash title: possible deadlock in elevator_change, ignore testing program (duration=41.223014454s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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 testing program (duration=41.223014454s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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 a never seen crash title: possible deadlock in elevator_change, ignore testing program (duration=41.223014454s, {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 validation run: crashed=true testing program (duration=41.223014454s, {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 kernfs_remove validation run: crashed=true testing program (duration=41.223014454s, {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 validation run: crashed=true reproducing took 31m3.465971063s repro crashed as (corrupted=false): ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.0.17/6052 is trying to acquire lock: ffff88802837b418 (&q->elevator_lock){+.+.}-{4:4}, at: elevator_change+0x1bc/0x530 block/elevator.c:679 but task is already holding lock: ffff88802837aef0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:206 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}: lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 blk_alloc_queue+0x610/0x790 block/blk-core.c:504 blk_mq_alloc_queue+0x174/0x290 block/blk-mq.c:4420 __blk_mq_alloc_disk+0x29/0x120 block/blk-mq.c:4467 nbd_dev_add+0x492/0xb10 drivers/block/nbd.c:1991 nbd_init+0x291/0x2b0 drivers/block/nbd.c:2729 do_one_initcall+0x11d/0x700 init/main.c:1347 do_initcall_level init/main.c:1409 [inline] do_initcalls init/main.c:1425 [inline] do_basic_setup init/main.c:1445 [inline] kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658 kernel_init+0x1f/0x1e0 init/main.c:1548 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #5 (fs_reclaim){+.+.}-{0:0}: lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 __fs_reclaim_acquire mm/page_alloc.c:4329 [inline] fs_reclaim_acquire+0xc4/0x100 mm/page_alloc.c:4343 might_alloc include/linux/sched/mm.h:317 [inline] slab_pre_alloc_hook mm/slub.c:4565 [inline] slab_alloc_node mm/slub.c:4925 [inline] __kmalloc_cache_node_noprof+0x66/0x6c0 mm/slub.c:5530 _kmalloc_node_noprof include/linux/slab.h:1174 [inline] alloc_worker kernel/workqueue.c:2706 [inline] create_worker+0x110/0x750 kernel/workqueue.c:2849 workqueue_prepare_cpu+0xb5/0x160 kernel/workqueue.c:6841 cpuhp_invoke_callback+0x3b4/0x9a0 kernel/cpu.c:194 __cpuhp_invoke_callback_range+0x158/0x1d0 kernel/cpu.c:972 cpuhp_invoke_callback_range kernel/cpu.c:996 [inline] cpuhp_up_callbacks kernel/cpu.c:1027 [inline] _cpu_up+0x3f6/0x960 kernel/cpu.c:1674 cpu_up+0x1ba/0x230 kernel/cpu.c:1706 cpuhp_bringup_mask+0xf8/0x180 kernel/cpu.c:1772 cpuhp_bringup_cpus_parallel kernel/cpu.c:1850 [inline] bringup_nonboot_cpus+0xd9/0x1b0 kernel/cpu.c:1876 smp_init+0x32/0x150 kernel/smp.c:1014 kernel_init_freeable+0x44b/0x7b0 init/main.c:1650 kernel_init+0x1f/0x1e0 init/main.c:1548 ret_from_fork+0x72b/0xd50 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}: lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline] percpu_down_read include/linux/percpu-rwsem.h:77 [inline] cpus_read_lock+0x42/0x170 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+0xd82/0x1a00 drivers/block/nbd.c:2468 genl_family_rcv_msg_doit+0x214/0x300 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x560/0x800 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x159/0x420 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+0x585/0x850 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:775 [inline] __sock_sendmsg net/socket.c:790 [inline] ____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2684 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2738 __sys_sendmsg+0x160/0x210 net/socket.c:2770 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #3 (&nsock->tx_lock){+.+.}-{4:4}: lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 nbd_handle_cmd drivers/block/nbd.c:1143 [inline] nbd_queue_rq+0x428/0x1080 drivers/block/nbd.c:1207 blk_mq_dispatch_rq_list+0x422/0x1e70 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+0xcea/0x1620 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xd7/0x1c0 block/blk-mq-sched.c:329 blk_mq_run_work_fn+0x135/0x380 block/blk-mq.c:2531 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322 process_scheduled_works kernel/workqueue.c:3405 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486 kthread+0x370/0x450 kernel/kthread.c:436 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #2 (&cmd->lock){+.+.}-{4:4}: lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 nbd_queue_rq+0xba/0x1080 drivers/block/nbd.c:1199 blk_mq_dispatch_rq_list+0x422/0x1e70 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+0xcea/0x1620 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xd7/0x1c0 block/blk-mq-sched.c:329 blk_mq_run_work_fn+0x135/0x380 block/blk-mq.c:2531 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322 process_scheduled_works kernel/workqueue.c:3405 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486 kthread+0x370/0x450 kernel/kthread.c:436 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #1 (set->srcu){.+.+}-{0:0}: lock_sync kernel/locking/lockdep.c:5916 [inline] lock_sync+0x9d/0x110 kernel/locking/lockdep.c:5904 srcu_lock_sync include/linux/srcu.h:199 [inline] __synchronize_srcu+0xa2/0x300 kernel/rcu/srcutree.c:1481 blk_mq_wait_quiesce_done block/blk-mq.c:284 [inline] blk_mq_wait_quiesce_done block/blk-mq.c:281 [inline] blk_mq_quiesce_queue block/blk-mq.c:304 [inline] blk_mq_quiesce_queue+0x149/0x1c0 block/blk-mq.c:299 elevator_switch+0x17b/0x7e0 block/elevator.c:576 elevator_change+0x352/0x530 block/elevator.c:681 elevator_set_default+0x29e/0x360 block/elevator.c:754 blk_register_queue+0x48e/0x630 block/blk-sysfs.c:992 __add_disk+0x73f/0xe40 block/genhd.c:524 add_disk_fwnode+0x118/0x480 block/genhd.c:593 add_disk include/linux/blkdev.h:800 [inline] nbd_dev_add+0x77a/0xb10 drivers/block/nbd.c:2021 nbd_init+0x291/0x2b0 drivers/block/nbd.c:2729 do_one_initcall+0x11d/0x700 init/main.c:1347 do_initcall_level init/main.c:1409 [inline] do_initcalls init/main.c:1425 [inline] do_basic_setup init/main.c:1445 [inline] kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658 kernel_init+0x1f/0x1e0 init/main.c:1548 ret_from_fork+0x72b/0xd50 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+0xeb/0xe60 kernel/locking/lockdep.c:3165 check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x136c/0x1a40 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 elevator_change+0x1bc/0x530 block/elevator.c:679 elevator_set_none+0x92/0xf0 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+0x4c1/0x15f0 block/blk-mq.c:5211 nbd_start_device+0x1a6/0xbd0 drivers/block/nbd.c:1526 nbd_genl_connect+0xff2/0x1a40 drivers/block/nbd.c:2276 genl_family_rcv_msg_doit+0x214/0x300 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x560/0x800 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x159/0x420 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+0x585/0x850 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:775 [inline] __sock_sendmsg net/socket.c:790 [inline] ____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2684 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2738 __sys_sendmsg+0x160/0x210 net/socket.c:2770 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 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 *** 6 locks held by syz.0.17/6052: #0: ffffffff90b4b548 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1217 #1: ffffffff90b4b600 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff90b4b600 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff90b4b600 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:57 [inline] #1: ffffffff90b4b600 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x57b/0x800 net/netlink/genetlink.c:1208 #2: ffff88802826e1c0 (&set->update_nr_hwq_lock){++++}-{4:4}, at: blk_mq_update_nr_hw_queues+0x9d/0x15f0 block/blk-mq.c:5209 #3: ffff88802826e0d0 (&set->tag_list_lock){+.+.}-{4:4}, at: blk_mq_update_nr_hw_queues+0xb0/0x15f0 block/blk-mq.c:5210 #4: ffff88802837aef0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:206 #5: ffff88802837af28 (&q->q_usage_counter(queue)#34){+.+.}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:206 stack backtrace: CPU: 0 UID: 0 PID: 6052 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 print_circular_bug.cold+0x178/0x1c7 kernel/locking/lockdep.c:2043 check_noncircular+0x146/0x160 kernel/locking/lockdep.c:2175 check_prev_add+0xeb/0xe60 kernel/locking/lockdep.c:3165 check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x136c/0x1a40 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 elevator_change+0x1bc/0x530 block/elevator.c:679 elevator_set_none+0x92/0xf0 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+0x4c1/0x15f0 block/blk-mq.c:5211 nbd_start_device+0x1a6/0xbd0 drivers/block/nbd.c:1526 nbd_genl_connect+0xff2/0x1a40 drivers/block/nbd.c:2276 genl_family_rcv_msg_doit+0x214/0x300 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x560/0x800 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x159/0x420 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+0x585/0x850 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:775 [inline] __sock_sendmsg net/socket.c:790 [inline] ____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2684 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2738 __sys_sendmsg+0x160/0x210 net/socket.c:2770 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8bf499de99 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:00007f8bf5927028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f8bf4c25fa0 RCX: 00007f8bf499de99 RDX: 0000000000000004 RSI: 0000200000001ac0 RDI: 0000000000000003 RBP: 00007f8bf4a33eaf R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8bf4c26038 R14: 00007f8bf4c25fa0 R15: 00007ffe6fefd7a8 final repro crashed as (corrupted=false): ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.0.17/6052 is trying to acquire lock: ffff88802837b418 (&q->elevator_lock){+.+.}-{4:4}, at: elevator_change+0x1bc/0x530 block/elevator.c:679 but task is already holding lock: ffff88802837aef0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:206 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}: lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 blk_alloc_queue+0x610/0x790 block/blk-core.c:504 blk_mq_alloc_queue+0x174/0x290 block/blk-mq.c:4420 __blk_mq_alloc_disk+0x29/0x120 block/blk-mq.c:4467 nbd_dev_add+0x492/0xb10 drivers/block/nbd.c:1991 nbd_init+0x291/0x2b0 drivers/block/nbd.c:2729 do_one_initcall+0x11d/0x700 init/main.c:1347 do_initcall_level init/main.c:1409 [inline] do_initcalls init/main.c:1425 [inline] do_basic_setup init/main.c:1445 [inline] kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658 kernel_init+0x1f/0x1e0 init/main.c:1548 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #5 (fs_reclaim){+.+.}-{0:0}: lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 __fs_reclaim_acquire mm/page_alloc.c:4329 [inline] fs_reclaim_acquire+0xc4/0x100 mm/page_alloc.c:4343 might_alloc include/linux/sched/mm.h:317 [inline] slab_pre_alloc_hook mm/slub.c:4565 [inline] slab_alloc_node mm/slub.c:4925 [inline] __kmalloc_cache_node_noprof+0x66/0x6c0 mm/slub.c:5530 _kmalloc_node_noprof include/linux/slab.h:1174 [inline] alloc_worker kernel/workqueue.c:2706 [inline] create_worker+0x110/0x750 kernel/workqueue.c:2849 workqueue_prepare_cpu+0xb5/0x160 kernel/workqueue.c:6841 cpuhp_invoke_callback+0x3b4/0x9a0 kernel/cpu.c:194 __cpuhp_invoke_callback_range+0x158/0x1d0 kernel/cpu.c:972 cpuhp_invoke_callback_range kernel/cpu.c:996 [inline] cpuhp_up_callbacks kernel/cpu.c:1027 [inline] _cpu_up+0x3f6/0x960 kernel/cpu.c:1674 cpu_up+0x1ba/0x230 kernel/cpu.c:1706 cpuhp_bringup_mask+0xf8/0x180 kernel/cpu.c:1772 cpuhp_bringup_cpus_parallel kernel/cpu.c:1850 [inline] bringup_nonboot_cpus+0xd9/0x1b0 kernel/cpu.c:1876 smp_init+0x32/0x150 kernel/smp.c:1014 kernel_init_freeable+0x44b/0x7b0 init/main.c:1650 kernel_init+0x1f/0x1e0 init/main.c:1548 ret_from_fork+0x72b/0xd50 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}: lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline] percpu_down_read include/linux/percpu-rwsem.h:77 [inline] cpus_read_lock+0x42/0x170 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+0xd82/0x1a00 drivers/block/nbd.c:2468 genl_family_rcv_msg_doit+0x214/0x300 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x560/0x800 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x159/0x420 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+0x585/0x850 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:775 [inline] __sock_sendmsg net/socket.c:790 [inline] ____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2684 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2738 __sys_sendmsg+0x160/0x210 net/socket.c:2770 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #3 (&nsock->tx_lock){+.+.}-{4:4}: lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 nbd_handle_cmd drivers/block/nbd.c:1143 [inline] nbd_queue_rq+0x428/0x1080 drivers/block/nbd.c:1207 blk_mq_dispatch_rq_list+0x422/0x1e70 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+0xcea/0x1620 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xd7/0x1c0 block/blk-mq-sched.c:329 blk_mq_run_work_fn+0x135/0x380 block/blk-mq.c:2531 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322 process_scheduled_works kernel/workqueue.c:3405 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486 kthread+0x370/0x450 kernel/kthread.c:436 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #2 (&cmd->lock){+.+.}-{4:4}: lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 nbd_queue_rq+0xba/0x1080 drivers/block/nbd.c:1199 blk_mq_dispatch_rq_list+0x422/0x1e70 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+0xcea/0x1620 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xd7/0x1c0 block/blk-mq-sched.c:329 blk_mq_run_work_fn+0x135/0x380 block/blk-mq.c:2531 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322 process_scheduled_works kernel/workqueue.c:3405 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486 kthread+0x370/0x450 kernel/kthread.c:436 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #1 (set->srcu){.+.+}-{0:0}: lock_sync kernel/locking/lockdep.c:5916 [inline] lock_sync+0x9d/0x110 kernel/locking/lockdep.c:5904 srcu_lock_sync include/linux/srcu.h:199 [inline] __synchronize_srcu+0xa2/0x300 kernel/rcu/srcutree.c:1481 blk_mq_wait_quiesce_done block/blk-mq.c:284 [inline] blk_mq_wait_quiesce_done block/blk-mq.c:281 [inline] blk_mq_quiesce_queue block/blk-mq.c:304 [inline] blk_mq_quiesce_queue+0x149/0x1c0 block/blk-mq.c:299 elevator_switch+0x17b/0x7e0 block/elevator.c:576 elevator_change+0x352/0x530 block/elevator.c:681 elevator_set_default+0x29e/0x360 block/elevator.c:754 blk_register_queue+0x48e/0x630 block/blk-sysfs.c:992 __add_disk+0x73f/0xe40 block/genhd.c:524 add_disk_fwnode+0x118/0x480 block/genhd.c:593 add_disk include/linux/blkdev.h:800 [inline] nbd_dev_add+0x77a/0xb10 drivers/block/nbd.c:2021 nbd_init+0x291/0x2b0 drivers/block/nbd.c:2729 do_one_initcall+0x11d/0x700 init/main.c:1347 do_initcall_level init/main.c:1409 [inline] do_initcalls init/main.c:1425 [inline] do_basic_setup init/main.c:1445 [inline] kernel_init_freeable+0x6ea/0x7b0 init/main.c:1658 kernel_init+0x1f/0x1e0 init/main.c:1548 ret_from_fork+0x72b/0xd50 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+0xeb/0xe60 kernel/locking/lockdep.c:3165 check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x136c/0x1a40 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 elevator_change+0x1bc/0x530 block/elevator.c:679 elevator_set_none+0x92/0xf0 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+0x4c1/0x15f0 block/blk-mq.c:5211 nbd_start_device+0x1a6/0xbd0 drivers/block/nbd.c:1526 nbd_genl_connect+0xff2/0x1a40 drivers/block/nbd.c:2276 genl_family_rcv_msg_doit+0x214/0x300 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x560/0x800 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x159/0x420 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+0x585/0x850 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:775 [inline] __sock_sendmsg net/socket.c:790 [inline] ____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2684 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2738 __sys_sendmsg+0x160/0x210 net/socket.c:2770 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 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 *** 6 locks held by syz.0.17/6052: #0: ffffffff90b4b548 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1217 #1: ffffffff90b4b600 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff90b4b600 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff90b4b600 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:57 [inline] #1: ffffffff90b4b600 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x57b/0x800 net/netlink/genetlink.c:1208 #2: ffff88802826e1c0 (&set->update_nr_hwq_lock){++++}-{4:4}, at: blk_mq_update_nr_hw_queues+0x9d/0x15f0 block/blk-mq.c:5209 #3: ffff88802826e0d0 (&set->tag_list_lock){+.+.}-{4:4}, at: blk_mq_update_nr_hw_queues+0xb0/0x15f0 block/blk-mq.c:5210 #4: ffff88802837aef0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:206 #5: ffff88802837af28 (&q->q_usage_counter(queue)#34){+.+.}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:206 stack backtrace: CPU: 0 UID: 0 PID: 6052 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 print_circular_bug.cold+0x178/0x1c7 kernel/locking/lockdep.c:2043 check_noncircular+0x146/0x160 kernel/locking/lockdep.c:2175 check_prev_add+0xeb/0xe60 kernel/locking/lockdep.c:3165 check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x136c/0x1a40 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 elevator_change+0x1bc/0x530 block/elevator.c:679 elevator_set_none+0x92/0xf0 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+0x4c1/0x15f0 block/blk-mq.c:5211 nbd_start_device+0x1a6/0xbd0 drivers/block/nbd.c:1526 nbd_genl_connect+0xff2/0x1a40 drivers/block/nbd.c:2276 genl_family_rcv_msg_doit+0x214/0x300 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x560/0x800 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x159/0x420 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+0x585/0x850 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:775 [inline] __sock_sendmsg net/socket.c:790 [inline] ____sys_sendmsg+0xa4d/0xbe0 net/socket.c:2684 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2738 __sys_sendmsg+0x160/0x210 net/socket.c:2770 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8bf499de99 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:00007f8bf5927028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f8bf4c25fa0 RCX: 00007f8bf499de99 RDX: 0000000000000004 RSI: 0000200000001ac0 RDI: 0000000000000003 RBP: 00007f8bf4a33eaf R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8bf4c26038 R14: 00007f8bf4c25fa0 R15: 00007ffe6fefd7a8