Extracting prog: 39m57.789253231s
Minimizing prog: 1h2m26.557360607s
Simplifying prog options: 0s
Extracting C: 35.471419486s
Simplifying C: 54m36.486401368s


extracting reproducer from 59 programs
testing a last program of every proc
single: executing 14 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_usb_ep_write-socket$kcm-write$cgroup_subtree-sendmsg$nl_generic-read
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_usb_connect$hid(0x3, 0x36, &(0x7f0000000140)=ANY=[@ANYBLOB="1201000000000010d804dd00000000000001090224000100000000090400000103000000092105000001220500090581030002"], 0x0)
syz_usb_control_io(r1, 0x0, 0x0) (async)
syz_usb_control_io(r1, &(0x7f00000003c0)={0x2c, &(0x7f0000000080)=ANY=[@ANYBLOB="000008000000080482", @ANYRES64=r1], 0x0, 0x0, 0x0, 0x0}, 0x0) (async)
syz_usb_ep_write(r1, 0x81, 0x1, &(0x7f0000000040)="10")
r2 = socket$kcm(0x10, 0x400000002, 0x0)
write$cgroup_subtree(r2, &(0x7f0000000040)=ANY=[@ANYBLOB="1303000055009155090893b31b71a54a07"], 0xfe33)
sendmsg$nl_generic(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)={0x14, 0x30, 0x300, 0x0, 0x0, {0x1}}, 0x14}}, 0x0) (async)
read(r0, &(0x7f0000000080)=""/186, 0xba)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-dup-sendmsg$inet_sctp-syz_open_dev$video4linux-ioctl$VIDIOC_SUBDEV_S_FMT-socket$nl_generic-recvmsg-sendmsg$nl_generic-recvmsg-sendmsg$inet_sctp-socket$inet6_sctp-dup-sendmsg$inet_sctp-syz_open_dev$video4linux-ioctl$VIDIOC_SUBDEV_S_FMT-socket$nl_generic-recvmsg-sendmsg$nl_generic-recvmsg-sendmsg$inet_sctp
detailed listing:
executing program 0:
r0 = socket$inet6_sctp(0xa, 0x1, 0x84)
r1 = dup(r0)
sendmsg$inet_sctp(r1, &(0x7f0000001580)={&(0x7f00000000c0)=@in6={0xa, 0x4e24, 0x6, @private1={0xfc, 0x1, '\x00', 0x1}, 0xfffffffd}, 0x1c, &(0x7f0000001500)=[{&(0x7f0000000140)='v', 0x1}], 0x1, 0xfffffffffffffffe, 0x0, 0x80}, 0x4040014)
r2 = syz_open_dev$video4linux(&(0x7f0000000000), 0x2004, 0x0)
ioctl$VIDIOC_SUBDEV_S_FMT(r2, 0xc0845658, &(0x7f0000000880)={0x0, 0x10})
r3 = socket$nl_generic(0x10, 0x3, 0x10)
recvmsg(r3, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x2022)
sendmsg$nl_generic(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=ANY=[@ANYBLOB="180000002500010324bd5502ffdbdf25010000000400ae"], 0x18}, 0x1, 0x0, 0x0, 0x4008}, 0x0)
recvmsg(r3, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000440)=[{&(0x7f0000002700)=""/4072, 0xfe8}, {&(0x7f0000000680)=""/77, 0x4d}, {&(0x7f0000006780)=""/4105, 0x1009}, {&(0x7f0000000000)=""/23, 0x17}, {&(0x7f00000005c0)=""/188, 0xbc}, {&(0x7f0000004700)=""/4103, 0x1007}, {&(0x7f0000000500)=""/155, 0x9b}, {&(0x7f00000002c0)=""/151, 0x97}, {&(0x7f00000001c0)=""/75, 0x4b}], 0x9}, 0x40032160)
sendmsg$inet_sctp(r1, &(0x7f00000003c0)={&(0x7f0000000000)=@in6={0xa, 0x4e24, 0x100, @loopback, 0x3}, 0x1c, &(0x7f0000000080)=[{&(0x7f0000000040)="99", 0x1}], 0x1, &(0x7f0000000100)=ANY=[@ANYBLOB="200000370000eab80938672438f1c10e63b654edf064506b558c00d0e6c3f9ffffffffffffff3aea3489a30eb11cf2b9713267b72f690642c062a7faf7315597"], 0x20, 0x4855}, 0x8850)
socket$inet6_sctp(0xa, 0x1, 0x84) (async)
dup(r0) (async)
sendmsg$inet_sctp(r1, &(0x7f0000001580)={&(0x7f00000000c0)=@in6={0xa, 0x4e24, 0x6, @private1={0xfc, 0x1, '\x00', 0x1}, 0xfffffffd}, 0x1c, &(0x7f0000001500)=[{&(0x7f0000000140)='v', 0x1}], 0x1, 0xfffffffffffffffe, 0x0, 0x80}, 0x4040014) (async)
syz_open_dev$video4linux(&(0x7f0000000000), 0x2004, 0x0) (async)
ioctl$VIDIOC_SUBDEV_S_FMT(r2, 0xc0845658, &(0x7f0000000880)={0x0, 0x10}) (async)
socket$nl_generic(0x10, 0x3, 0x10) (async)
recvmsg(r3, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x2022) (async)
sendmsg$nl_generic(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)=ANY=[@ANYBLOB="180000002500010324bd5502ffdbdf25010000000400ae"], 0x18}, 0x1, 0x0, 0x0, 0x4008}, 0x0) (async)
recvmsg(r3, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000440)=[{&(0x7f0000002700)=""/4072, 0xfe8}, {&(0x7f0000000680)=""/77, 0x4d}, {&(0x7f0000006780)=""/4105, 0x1009}, {&(0x7f0000000000)=""/23, 0x17}, {&(0x7f00000005c0)=""/188, 0xbc}, {&(0x7f0000004700)=""/4103, 0x1007}, {&(0x7f0000000500)=""/155, 0x9b}, {&(0x7f00000002c0)=""/151, 0x97}, {&(0x7f00000001c0)=""/75, 0x4b}], 0x9}, 0x40032160) (async)
sendmsg$inet_sctp(r1, &(0x7f00000003c0)={&(0x7f0000000000)=@in6={0xa, 0x4e24, 0x100, @loopback, 0x3}, 0x1c, &(0x7f0000000080)=[{&(0x7f0000000040)="99", 0x1}], 0x1, &(0x7f0000000100)=ANY=[@ANYBLOB="200000370000eab80938672438f1c10e63b654edf064506b558c00d0e6c3f9ffffffffffffff3aea3489a30eb11cf2b9713267b72f690642c062a7faf7315597"], 0x20, 0x4855}, 0x8850) (async)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair-sendmsg$rds-sendmsg$AUDIT_SIGNAL_INFO-openat$ptmx-ioctl$TIOCSETD-mprotect-socket$nl_generic-recvmmsg-sendmsg$nl_generic-writev-close-openat$ttynull-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_IRQCHIP-ioctl$KVM_GET_IRQCHIP-ioctl$sock_TIOCOUTQ-ioctl$TIOCSTI-openat$dsp-ioctl$SNDCTL_DSP_GETTRIGGER-close
detailed listing:
executing program 0:
socketpair(0x1e, 0x1, 0x0, &(0x7f0000000040)={<r0=>0x0, <r1=>0x0})
sendmsg$rds(r0, &(0x7f0000000300)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x20004051}, 0x404e890)
sendmsg$AUDIT_SIGNAL_INFO(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000140)={0x0}, 0x1, 0x0, 0xefffffff, 0x20000080}, 0x40048004)
r2 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200), 0x41, 0x0)
ioctl$TIOCSETD(r2, 0x5423, &(0x7f0000000000)=0x1b)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
recvmmsg(r3, &(0x7f0000005c40)=[{{0x0, 0x0, 0x0}, 0x5}, {{0x0, 0x0, &(0x7f0000001300)=[{&(0x7f0000000d40)=""/213, 0xd5}, {&(0x7f0000000e40)=""/251, 0xfb}, {&(0x7f0000003bc0)=""/4096, 0x1000}, {&(0x7f0000001040)=""/251, 0xfb}, {&(0x7f00000005c0)=""/40, 0x28}, {&(0x7f0000000900)=""/13, 0xd}, {&(0x7f0000001240)=""/166, 0xa6}], 0x7}, 0x9}, {{0x0, 0x0, 0x0}, 0x5}, {{0x0, 0x0, 0x0}, 0x1}], 0x4, 0x2120, 0x0)
sendmsg$nl_generic(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000001c0)=ANY=[@ANYBLOB="180000002500010324bd5502ffdbdf25010000000400ae"], 0x18}, 0x1, 0x0, 0x0, 0x4004088}, 0x0)
writev(r2, &(0x7f0000000180)=[{0x0}, {0x0}], 0x2)
close(r0)
r4 = openat$ttynull(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
r5 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x101000, 0x0)
r6 = ioctl$KVM_CREATE_VM(r5, 0xae01, 0x0)
ioctl$KVM_CREATE_IRQCHIP(r6, 0xae60)
ioctl$KVM_GET_IRQCHIP(r6, 0xc208ae62, &(0x7f0000000500)={0x2, 0x0, @ioapic={0xa000, 0x3, 0x1, 0x42, 0x0, [{0x9, 0x0, 0xda, '\x00', 0x3}, {0x8, 0x9, 0x60, '\x00', 0x6}, {0xc, 0x2, 0xd, '\x00', 0x7}, {0x6, 0x7, 0x60, '\x00', 0x2}, {0x0, 0xe9, 0x8, '\x00', 0x6}, {0x4, 0x9, 0x31, '\x00', 0x2}, {0x0, 0xf5, 0x3e, '\x00', 0x5}, {0x6, 0xa5, 0x80, '\x00', 0x41}, {0x10, 0x2, 0x9, '\x00', 0x6}, {0xff, 0x4, 0x1}, {0x40, 0x1, 0x4, '\x00', 0x7}, {0xc, 0x6, 0x2, '\x00', 0x38}, {0x6, 0x1, 0x80, '\x00', 0x8}, {0x9, 0x5, 0x3, '\x00', 0x7}, {0xb, 0x1, 0x9, '\x00', 0xc}, {0xa, 0x8, 0x2, '\x00', 0xc0}, {0x0, 0x41, 0x92, '\x00', 0x7}, {0x7, 0xcb, 0xb, '\x00', 0x8d}, {0xc, 0x0, 0xc, '\x00', 0x9}, {0x5, 0x2c, 0xd, '\x00', 0x81}, {0xff, 0x72, 0x0, '\x00', 0x7}, {0x8, 0x2, 0x5, '\x00', 0x6}, {0x45, 0xb, 0x8, '\x00', 0xa0}, {0x1, 0x1, 0x7, '\x00', 0x9}]}})
ioctl$sock_TIOCOUTQ(r1, 0x5411, &(0x7f00000000c0))
ioctl$TIOCSTI(r4, 0x541b, &(0x7f0000000080))
r7 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$SNDCTL_DSP_GETTRIGGER(r7, 0x80045010, &(0x7f0000000040))
close(r1)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dsp-write$dsp-write$dsp-openat$userio-write$USERIO_CMD_SEND_INTERRUPT
detailed listing:
executing program 0:
r0 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000000), 0x8041, 0x0)
write$dsp(r0, &(0x7f0000000080)='5', 0x1)
write$dsp(r0, &(0x7f00000001c0)="5cba91a4", 0xffffffd9)
r1 = openat$userio(0xffffffffffffff9c, &(0x7f0000000080), 0x22242, 0x0)
write$USERIO_CMD_SEND_INTERRUPT(r1, &(0x7f0000000200), 0x2)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-socket$nl_route-socket$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$NFQNL_MSG_CONFIG-sendmsg$BATADV_CMD_SET_MESH-sendmsg$NFT_MSG_GETGEN
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc) (async, rerun: 64)
r1 = socket$nl_route(0x10, 0x3, 0x0) (async, rerun: 64)
r2 = socket$nl_generic(0x10, 0x3, 0x10)
r3 = syz_genetlink_get_family_id$batadv(&(0x7f0000000940), 0xffffffffffffffff) (async)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000980)={'batadv0\x00', <r4=>0x0})
sendmsg$NFQNL_MSG_CONFIG(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, 0x2, 0x3, 0x401, 0x0, 0x0, {0x5, 0x0, 0x7}, [@NFQA_CFG_PARAMS={0x9, 0x2, {0x8}}, @NFQA_CFG_FLAGS={0x8, 0x5, 0x1, 0x0, 0x6}]}, 0x28}, 0x1, 0x0, 0x0, 0x48000}, 0x0) (async)
sendmsg$BATADV_CMD_SET_MESH(r2, &(0x7f0000000a80)={0x0, 0x0, &(0x7f0000000a40)={&(0x7f00000009c0)={0x24, r3, 0x1, 0x70bd25, 0x25dfdbfe, {}, [@BATADV_ATTR_AGGREGATED_OGMS_ENABLED={0x5, 0x29, 0x1}, @BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r4}]}, 0x24}, 0x1, 0x0, 0x0, 0x885}, 0x40840)
sendmsg$NFT_MSG_GETGEN(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)={0x14, 0x10, 0xa, 0x5, 0x0, 0x0, {0x1, 0x0, 0x2}}, 0x14}}, 0x20004800)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-socket$nl_route-socket$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$NFQNL_MSG_CONFIG-sendmsg$BATADV_CMD_SET_MESH-sendmsg$NFT_MSG_GETGEN
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc) (async, rerun: 64)
r1 = socket$nl_route(0x10, 0x3, 0x0) (async, rerun: 64)
r2 = socket$nl_generic(0x10, 0x3, 0x10)
r3 = syz_genetlink_get_family_id$batadv(&(0x7f0000000940), 0xffffffffffffffff) (async)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r1, 0x8933, &(0x7f0000000980)={'batadv0\x00', <r4=>0x0})
sendmsg$NFQNL_MSG_CONFIG(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, 0x2, 0x3, 0x401, 0x0, 0x0, {0x5, 0x0, 0x7}, [@NFQA_CFG_PARAMS={0x9, 0x2, {0x8}}, @NFQA_CFG_FLAGS={0x8, 0x5, 0x1, 0x0, 0x6}]}, 0x28}, 0x1, 0x0, 0x0, 0x48000}, 0x0) (async)
sendmsg$BATADV_CMD_SET_MESH(r2, &(0x7f0000000a80)={0x0, 0x0, &(0x7f0000000a40)={&(0x7f00000009c0)={0x24, r3, 0x1, 0x70bd25, 0x25dfdbfe, {}, [@BATADV_ATTR_AGGREGATED_OGMS_ENABLED={0x5, 0x29, 0x1}, @BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r4}]}, 0x24}, 0x1, 0x0, 0x0, 0x885}, 0x40840)
sendmsg$NFT_MSG_GETGEN(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)={0x14, 0x10, 0xa, 0x5, 0x0, 0x0, {0x1, 0x0, 0x2}}, 0x14}}, 0x20004800)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-fchownat-mmap-madvise-syz_clone-ptrace-ptrace$setregs-mlock-openat$comedi-socket-getsockname$packet-socket$nl_xfrm-sendmsg$nl_xfrm-mprotect-ioctl$COMEDI_INSNLIST-madvise
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
fchownat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x0, 0x1000)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
r0 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
ptrace(0x10, r0)
ptrace$setregs(0x1a, r0, 0xc, &(0x7f0000000000))
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
r1 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000080)='/dev/comedi3\x00', 0x400, 0x0)
r2 = socket(0x10, 0x803, 0x4)
getsockname$packet(r2, &(0x7f0000000180)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000000c0)=0x14)
r3 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r3, &(0x7f0000001240)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c0000001d00010029bd7000fdd3df250a00100080"], 0x1c}, 0x1, 0x0, 0x0, 0x4004800}, 0x40000800)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)
ioctl$COMEDI_INSNLIST(r1, 0x8010640b, &(0x7f0000000180)={0x0, 0x0})
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x3)

program crashed: INFO: task hung in exit_mm
single: successfully extracted reproducer
found reproducer with 19 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-fchownat-mmap-madvise-syz_clone-ptrace-ptrace$setregs-mlock-openat$comedi-socket-getsockname$packet-socket$nl_xfrm-sendmsg$nl_xfrm-mprotect-ioctl$COMEDI_INSNLIST
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
fchownat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x0, 0x1000)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
r0 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
ptrace(0x10, r0)
ptrace$setregs(0x1a, r0, 0xc, &(0x7f0000000000))
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
r1 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000080)='/dev/comedi3\x00', 0x400, 0x0)
r2 = socket(0x10, 0x803, 0x4)
getsockname$packet(r2, &(0x7f0000000180)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000000c0)=0x14)
r3 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r3, &(0x7f0000001240)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c0000001d00010029bd7000fdd3df250a00100080"], 0x1c}, 0x1, 0x0, 0x0, 0x4004800}, 0x40000800)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)
ioctl$COMEDI_INSNLIST(r1, 0x8010640b, &(0x7f0000000180)={0x0, 0x0})

program crashed: general protection fault in rwsem_mark_wake
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-fchownat-mmap-madvise-syz_clone-ptrace-ptrace$setregs-mlock-openat$comedi-socket-getsockname$packet-socket$nl_xfrm-sendmsg$nl_xfrm-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
fchownat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x0, 0x1000)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
r0 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
ptrace(0x10, r0)
ptrace$setregs(0x1a, r0, 0xc, &(0x7f0000000000))
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000080)='/dev/comedi3\x00', 0x400, 0x0)
r1 = socket(0x10, 0x803, 0x4)
getsockname$packet(r1, &(0x7f0000000180)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000000c0)=0x14)
r2 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r2, &(0x7f0000001240)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c0000001d00010029bd7000fdd3df250a00100080"], 0x1c}, 0x1, 0x0, 0x0, 0x4004800}, 0x40000800)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: general protection fault in rwsem_mark_wake
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-fchownat-mmap-madvise-syz_clone-ptrace-ptrace$setregs-mlock-openat$comedi-socket-getsockname$packet-socket$nl_xfrm-sendmsg$nl_xfrm
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
fchownat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x0, 0x1000)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
r0 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
ptrace(0x10, r0)
ptrace$setregs(0x1a, r0, 0xc, &(0x7f0000000000))
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000080)='/dev/comedi3\x00', 0x400, 0x0)
r1 = socket(0x10, 0x803, 0x4)
getsockname$packet(r1, &(0x7f0000000180)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000000c0)=0x14)
r2 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r2, &(0x7f0000001240)={0x0, 0x0, &(0x7f0000001200)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c0000001d00010029bd7000fdd3df250a00100080"], 0x1c}, 0x1, 0x0, 0x0, 0x4004800}, 0x40000800)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-fchownat-mmap-madvise-syz_clone-ptrace-ptrace$setregs-mlock-openat$comedi-socket-getsockname$packet-socket$nl_xfrm-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
fchownat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x0, 0x1000)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
r0 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
ptrace(0x10, r0)
ptrace$setregs(0x1a, r0, 0xc, &(0x7f0000000000))
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000080)='/dev/comedi3\x00', 0x400, 0x0)
r1 = socket(0x10, 0x803, 0x4)
getsockname$packet(r1, &(0x7f0000000180)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000000c0)=0x14)
socket$nl_xfrm(0x10, 0x3, 0x6)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: general protection fault in rwsem_mark_wake
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-fchownat-mmap-madvise-syz_clone-ptrace-ptrace$setregs-mlock-openat$comedi-socket-getsockname$packet-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
fchownat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x0, 0x1000)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
r0 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
ptrace(0x10, r0)
ptrace$setregs(0x1a, r0, 0xc, &(0x7f0000000000))
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000080)='/dev/comedi3\x00', 0x400, 0x0)
r1 = socket(0x10, 0x803, 0x4)
getsockname$packet(r1, &(0x7f0000000180)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000000c0)=0x14)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: general protection fault in rwsem_mark_wake
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-fchownat-mmap-madvise-syz_clone-ptrace-ptrace$setregs-mlock-openat$comedi-socket-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
fchownat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x0, 0x1000)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
r0 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
ptrace(0x10, r0)
ptrace$setregs(0x1a, r0, 0xc, &(0x7f0000000000))
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000080)='/dev/comedi3\x00', 0x400, 0x0)
socket(0x10, 0x803, 0x4)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: general protection fault in rwsem_mark_wake
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-fchownat-mmap-madvise-syz_clone-ptrace-ptrace$setregs-mlock-openat$comedi-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
fchownat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x0, 0x1000)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
r0 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
ptrace(0x10, r0)
ptrace$setregs(0x1a, r0, 0xc, &(0x7f0000000000))
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
openat$comedi(0xffffffffffffff9c, &(0x7f0000000080)='/dev/comedi3\x00', 0x400, 0x0)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: general protection fault in rwsem_mark_wake
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-fchownat-mmap-madvise-syz_clone-ptrace-ptrace$setregs-mlock-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
fchownat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x0, 0x1000)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
r0 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
ptrace(0x10, r0)
ptrace$setregs(0x1a, r0, 0xc, &(0x7f0000000000))
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: general protection fault in rwsem_mark_wake
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-fchownat-mmap-madvise-syz_clone-ptrace-ptrace$setregs-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
fchownat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x0, 0x1000)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
r0 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
ptrace(0x10, r0)
ptrace$setregs(0x1a, r0, 0xc, &(0x7f0000000000))
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-fchownat-mmap-madvise-syz_clone-ptrace-mlock-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
fchownat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x0, 0x1000)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
r0 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
ptrace(0x10, r0)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: general protection fault in rwsem_mark_wake
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-fchownat-mmap-madvise-syz_clone-mlock-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
fchownat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x0, 0x1000)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: general protection fault in rwsem_mark_wake
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-fchownat-mmap-madvise-mlock-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
fchownat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x0, 0x1000)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: general protection fault in rwsem_mark_wake
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-fchownat-mmap-mlock-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
fchownat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x0, 0x1000)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-fchownat-madvise-mlock-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
fchownat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x0, 0x1000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-setresuid-mmap-madvise-mlock-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
setresuid(0x0, 0x0, 0xee01)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: general protection fault in rwsem_mark_wake
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mount$fuse-mmap-madvise-mlock-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mount$fuse(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f00000001c0)=ANY=[@ANYRES32])
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: general protection fault in rwsem_mark_wake
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat$fuse-mmap-madvise-mlock-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: general protection fault in rwsem_mark_wake
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mmap-madvise-mlock-mprotect
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x1c0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: INFO: task hung in exit_mm
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
program crashed: general protection fault in rwsem_mark_wake
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded: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}}): mmap-madvise-mlock-mprotect
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
program crashed: INFO: task hung in exit_mm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
program crashed: general protection fault in rwsem_mark_wake
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
program crashed: INFO: task hung in exit_mm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false 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}}): mmap-madvise-mlock-mprotect
program crashed: general protection fault in rwsem_mark_wake
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
program crashed: general protection fault in rwsem_mark_wake
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
program crashed: general protection fault in rwsem_mark_wake
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
program crashed: INFO: task hung in exit_mm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
program crashed: general protection fault in rwsem_mark_wake
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
program crashed: INFO: task hung in exit_mm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
program crashed: INFO: task hung in exit_mm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
program crashed: general protection fault in rwsem_mark_wake
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: INFO: task hung in exit_mm
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: INFO: task hung in exit_mm
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-madvise-mlock-mprotect
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x7, 0x4008032, 0xffffffffffffffff, 0xd06d000)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x5)

program crashed: INFO: task hung in exit_mm
validation run: crashed=true
reproducing took 3h12m13.329392616s
repro crashed as (corrupted=false):
INFO: task syz.3.21:6103 blocked for more than 143 seconds.
      Not tainted syzkaller #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.21        state:D stack:23064 pid:6103  tgid:6098  ppid:5986   task_flags:0x40044c flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5352 [inline]
 __schedule+0x1665/0x5590 kernel/sched/core.c:6964
 __schedule_loop kernel/sched/core.c:7047 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:7062
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7119
 rwsem_down_read_slowpath+0x6d9/0x940 kernel/locking/rwsem.c:1114
 __down_read_common kernel/locking/rwsem.c:1291 [inline]
 __down_read kernel/locking/rwsem.c:1304 [inline]
 down_read+0x99/0x2e0 kernel/locking/rwsem.c:1570
 mmap_read_lock include/linux/mmap_lock.h:592 [inline]
 exit_mm+0x73/0x250 kernel/exit.c:557
 do_exit+0x8b9/0x2490 kernel/exit.c:962
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1116
 get_signal+0x1284/0x1330 kernel/signal.c:3035
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:269 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5e1379c799
RSP: 002b:00007f5e1466c0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f5e13a16098 RCX: 00007f5e1379c799
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f5e13a16098
RBP: 00007f5e13a16090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5e13a16128 R14: 00007ffd97474b90 R15: 00007ffd97474c78
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/30:
 #0: ffffffff8eb5d6a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #0: ffffffff8eb5d6a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #0: ffffffff8eb5d6a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6775
2 locks held by getty/5587:
 #0: ffff88823bf628a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc9000332b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0 drivers/tty/n_tty.c:2211
1 lock held by syz.3.21/6103:
 #0: ffff888065cc6738 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:592 [inline]
 #0: ffff888065cc6738 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0x73/0x250 kernel/exit.c:557
1 lock held by syz.1.507/8083:
 #0: ffff88813fe2ce38 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:592 [inline]
 #0: ffff88813fe2ce38 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0x73/0x250 kernel/exit.c:557
1 lock held by syz.1.507/8087:
 #0: ffff88813fe2ce38 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:592 [inline]
 #0: ffff88813fe2ce38 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0x73/0x250 kernel/exit.c:557
1 lock held by syz.5.655/8695:
 #0: ffff88813fe28338 (&mm->mmap_lock){++++}-{4:4}, at: mmap_write_lock_killable include/linux/mmap_lock.h:554 [inline]
 #0: ffff88813fe28338 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0x234/0x4f0 mm/util.c:579
1 lock held by syz.5.655/8696:
2 locks held by syz.4.656/8699:
1 lock held by syz.2.657/8700:
 #0: ffff888079bc73b8 (&mm->mmap_lock){++++}-{4:4}, at: mmap_write_lock_killable include/linux/mmap_lock.h:554 [inline]
 #0: ffff888079bc73b8 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0x234/0x4f0 mm/util.c:579
1 lock held by syz.2.657/8701:
1 lock held by syz.0.658/8704:
 #0: ffff888079bc6738 (&mm->mmap_lock){++++}-{4:4}, at: mmap_write_lock_killable include/linux/mmap_lock.h:554 [inline]
 #0: ffff888079bc6738 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0x234/0x4f0 mm/util.c:579
1 lock held by syz.0.658/8705:
 #0: ffff888079bc6738 (&mm->mmap_lock){++++}-{4:4}, at: mmap_write_lock_killable include/linux/mmap_lock.h:554 [inline]
 #0: ffff888079bc6738 (&mm->mmap_lock){++++}-{4:4}, at: do_mlock+0x173/0x750 mm/mlock.c:632

=============================================

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
 __sys_info lib/sys_info.c:157 [inline]
 sys_info+0x135/0x170 lib/sys_info.c:165
 check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]
 watchdog+0x1002/0x1060 kernel/hung_task.c:561
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 8709 Comm: syz.5.655 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:stack_trace_consume_entry+0xf3/0x280 kernel/stacktrace.c:93
Code: 8b 74 24 08 48 8b 1f 45 8d 79 01 0f b6 44 15 00 84 c0 0f 85 3a 01 00 00 45 89 38 4e 8d 3c cb 4c 89 f8 48 c1 e8 03 80 3c 10 00 <74> 1a 4c 89 ff 48 89 f3 49 89 d4 4c 89 c5 e8 fa 3b 7e 00 49 89 e8
RSP: 0018:ffffc900044c7038 EFLAGS: 00000246
RAX: 1ffff92000898e46 RBX: ffffc900044c7200 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffffff8186a6b8 RDI: ffffc900044c7140
RBP: 1ffff92000898e2a R08: ffffc900044c7150 R09: 0000000000000006
R10: ffffc900044c70d8 R11: ffffffff81b21b00 R12: 0000000000000000
R13: 1ffff92000898e29 R14: ffffc900044c7148 R15: ffffc900044c7230
FS:  0000000000000000(0000) GS:ffff888124de0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4598fe7158 CR3: 000000007a5f4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 arch_stack_walk+0x10f/0x150 arch/x86/kernel/stacktrace.c:27
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 save_stack+0x122/0x230 mm/page_owner.c:165
 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1401 [inline]
 free_unref_folios+0xd0c/0x1450 mm/page_alloc.c:3003
 folios_put_refs+0x9ff/0xb40 mm/swap.c:1008
 free_pages_and_swap_cache+0x2b9/0x490 mm/swap_state.c:401
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:138 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:151 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:417 [inline]
 tlb_flush_mmu+0x6d3/0xa30 mm/mmu_gather.c:424
 tlb_finish_mmu+0xf9/0x230 mm/mmu_gather.c:549
 exit_mmap+0x498/0xa10 mm/mmap.c:1315
 __mmput+0x118/0x430 kernel/fork.c:1180
 exit_mm+0x18e/0x250 kernel/exit.c:581
 do_exit+0x8b9/0x2490 kernel/exit.c:962
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1116
 get_signal+0x1284/0x1330 kernel/signal.c:3035
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:269 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3e8eb9c799
Code: Unable to access opcode bytes at 0x7f3e8eb9c76f.
RSP: 002b:00007f3e8fae80e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f3e8ee16188 RCX: 00007f3e8eb9c799
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f3e8ee1618c
RBP: 00007f3e8ee16180 R08: 3fffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3e8ee16218 R14: 00007ffd0a3fb480 R15: 00007ffd0a3fb568
 </TASK>

final repro crashed as (corrupted=false):
INFO: task syz.3.21:6103 blocked for more than 143 seconds.
      Not tainted syzkaller #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.21        state:D stack:23064 pid:6103  tgid:6098  ppid:5986   task_flags:0x40044c flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5352 [inline]
 __schedule+0x1665/0x5590 kernel/sched/core.c:6964
 __schedule_loop kernel/sched/core.c:7047 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:7062
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7119
 rwsem_down_read_slowpath+0x6d9/0x940 kernel/locking/rwsem.c:1114
 __down_read_common kernel/locking/rwsem.c:1291 [inline]
 __down_read kernel/locking/rwsem.c:1304 [inline]
 down_read+0x99/0x2e0 kernel/locking/rwsem.c:1570
 mmap_read_lock include/linux/mmap_lock.h:592 [inline]
 exit_mm+0x73/0x250 kernel/exit.c:557
 do_exit+0x8b9/0x2490 kernel/exit.c:962
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1116
 get_signal+0x1284/0x1330 kernel/signal.c:3035
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:269 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5e1379c799
RSP: 002b:00007f5e1466c0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f5e13a16098 RCX: 00007f5e1379c799
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f5e13a16098
RBP: 00007f5e13a16090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5e13a16128 R14: 00007ffd97474b90 R15: 00007ffd97474c78
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/30:
 #0: ffffffff8eb5d6a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #0: ffffffff8eb5d6a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #0: ffffffff8eb5d6a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6775
2 locks held by getty/5587:
 #0: ffff88823bf628a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc9000332b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0 drivers/tty/n_tty.c:2211
1 lock held by syz.3.21/6103:
 #0: ffff888065cc6738 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:592 [inline]
 #0: ffff888065cc6738 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0x73/0x250 kernel/exit.c:557
1 lock held by syz.1.507/8083:
 #0: ffff88813fe2ce38 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:592 [inline]
 #0: ffff88813fe2ce38 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0x73/0x250 kernel/exit.c:557
1 lock held by syz.1.507/8087:
 #0: ffff88813fe2ce38 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:592 [inline]
 #0: ffff88813fe2ce38 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0x73/0x250 kernel/exit.c:557
1 lock held by syz.5.655/8695:
 #0: ffff88813fe28338 (&mm->mmap_lock){++++}-{4:4}, at: mmap_write_lock_killable include/linux/mmap_lock.h:554 [inline]
 #0: ffff88813fe28338 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0x234/0x4f0 mm/util.c:579
1 lock held by syz.5.655/8696:
2 locks held by syz.4.656/8699:
1 lock held by syz.2.657/8700:
 #0: ffff888079bc73b8 (&mm->mmap_lock){++++}-{4:4}, at: mmap_write_lock_killable include/linux/mmap_lock.h:554 [inline]
 #0: ffff888079bc73b8 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0x234/0x4f0 mm/util.c:579
1 lock held by syz.2.657/8701:
1 lock held by syz.0.658/8704:
 #0: ffff888079bc6738 (&mm->mmap_lock){++++}-{4:4}, at: mmap_write_lock_killable include/linux/mmap_lock.h:554 [inline]
 #0: ffff888079bc6738 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0x234/0x4f0 mm/util.c:579
1 lock held by syz.0.658/8705:
 #0: ffff888079bc6738 (&mm->mmap_lock){++++}-{4:4}, at: mmap_write_lock_killable include/linux/mmap_lock.h:554 [inline]
 #0: ffff888079bc6738 (&mm->mmap_lock){++++}-{4:4}, at: do_mlock+0x173/0x750 mm/mlock.c:632

=============================================

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
 __sys_info lib/sys_info.c:157 [inline]
 sys_info+0x135/0x170 lib/sys_info.c:165
 check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]
 watchdog+0x1002/0x1060 kernel/hung_task.c:561
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 8709 Comm: syz.5.655 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:stack_trace_consume_entry+0xf3/0x280 kernel/stacktrace.c:93
Code: 8b 74 24 08 48 8b 1f 45 8d 79 01 0f b6 44 15 00 84 c0 0f 85 3a 01 00 00 45 89 38 4e 8d 3c cb 4c 89 f8 48 c1 e8 03 80 3c 10 00 <74> 1a 4c 89 ff 48 89 f3 49 89 d4 4c 89 c5 e8 fa 3b 7e 00 49 89 e8
RSP: 0018:ffffc900044c7038 EFLAGS: 00000246
RAX: 1ffff92000898e46 RBX: ffffc900044c7200 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffffff8186a6b8 RDI: ffffc900044c7140
RBP: 1ffff92000898e2a R08: ffffc900044c7150 R09: 0000000000000006
R10: ffffc900044c70d8 R11: ffffffff81b21b00 R12: 0000000000000000
R13: 1ffff92000898e29 R14: ffffc900044c7148 R15: ffffc900044c7230
FS:  0000000000000000(0000) GS:ffff888124de0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4598fe7158 CR3: 000000007a5f4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 arch_stack_walk+0x10f/0x150 arch/x86/kernel/stacktrace.c:27
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 save_stack+0x122/0x230 mm/page_owner.c:165
 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1401 [inline]
 free_unref_folios+0xd0c/0x1450 mm/page_alloc.c:3003
 folios_put_refs+0x9ff/0xb40 mm/swap.c:1008
 free_pages_and_swap_cache+0x2b9/0x490 mm/swap_state.c:401
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:138 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:151 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:417 [inline]
 tlb_flush_mmu+0x6d3/0xa30 mm/mmu_gather.c:424
 tlb_finish_mmu+0xf9/0x230 mm/mmu_gather.c:549
 exit_mmap+0x498/0xa10 mm/mmap.c:1315
 __mmput+0x118/0x430 kernel/fork.c:1180
 exit_mm+0x18e/0x250 kernel/exit.c:581
 do_exit+0x8b9/0x2490 kernel/exit.c:962
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1116
 get_signal+0x1284/0x1330 kernel/signal.c:3035
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:269 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3e8eb9c799
Code: Unable to access opcode bytes at 0x7f3e8eb9c76f.
RSP: 002b:00007f3e8fae80e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f3e8ee16188 RCX: 00007f3e8eb9c799
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f3e8ee1618c
RBP: 00007f3e8ee16180 R08: 3fffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3e8ee16218 R14: 00007ffd0a3fb480 R15: 00007ffd0a3fb568
 </TASK>