Extracting prog: 3m34.128815888s
Minimizing prog: 1h11m41.024730134s
Simplifying prog options: 0s
Extracting C: 3m48.343262689s
Simplifying C: 26m22.198754122s


extracting reproducer from 38 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_open_dev$vcsu-madvise-mlock-mremap-madvise-mkdirat-open-mkdirat-newfstatat-rename-syz_usb_connect-socket$inet_mptcp-socket$netlink-ioctl$sock_SIOCETHTOOL-mount
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
syz_open_dev$vcsu(&(0x7f00000000c0), 0x0, 0x440200)
madvise(&(0x7f00004c0000/0x4000)=nil, 0x4000, 0x12)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)
madvise(&(0x7f0000000000/0xc00000)=nil, 0xc00304, 0x15)
mkdirat(0xffffffffffffff9c, &(0x7f0000002040)='./file0\x00', 0x20)
open(&(0x7f0000000040)='./file0\x00', 0x551083, 0x40)
mkdirat(0xffffffffffffff9c, &(0x7f0000001dc0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0)
newfstatat(0xffffffffffffff9c, &(0x7f0000000240)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', &(0x7f0000000100), 0x400)
rename(&(0x7f0000000580)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', &(0x7f0000000200)='./file0\x00')
syz_usb_connect(0x0, 0x24, &(0x7f0000000340)=ANY=[@ANYBLOB="120100002faa00200d050212d7470102000904b402008d509700921f8ca4f6a3c1f44bc972c5fe72148aecb059b4befd1ad497d61a7dad64cad300e02ccba46279f6411e9d091589d6204a8dc9d5f9e3c3c9a392add3b1a1324a458b78d4e9fffd3883e3804542a4c11c3a4df469d76e131474e7e2d09d78469b9884ecb39fb23e2a6970f86c128cc384e47a09bb15c2cc97de7951e40f5e2b58a8991df0b161727ad6dd2af2fc58b019f8d65397f6f67fec32df41ade91a6d86db9f63fa287baa5e0e5e7bd1370516c217164fb4e76e2fae37577244bc52ef7d3ca92e5563c6080a9f4d965674e35d73f223cd5b04f9ed38051d0600"/256], 0x0)
r2 = socket$inet_mptcp(0x2, 0x1, 0x106)
socket$netlink(0x10, 0x3, 0x18)
ioctl$sock_SIOCETHTOOL(r2, 0x89f1, &(0x7f0000000180)={'ip_vti0\x00', &(0x7f0000000300)=@ethtool_rxnfc={0x2f, 0x1, 0x46, {0xe, @tcp_ip4_spec={@empty, @initdev={0xac, 0x1e, 0x0, 0x0}, 0x4e24, 0x4e21, 0x7}, {0x0, @remote, 0xe, 0x4, [0x7, 0xffffff01]}, @ah_ip4_spec={@remote, @local, 0x73, 0x3}, {0x0, @dev={'\xaa\xaa\xaa\xaa\xaa', 0x36}, 0x8, 0x5, [0xf, 0x9]}, 0x102, 0x3}}})
mount(&(0x7f0000000000)=@rnullb, &(0x7f0000000040)='./cgroup\x00', &(0x7f0000000080)='nilfs2\x00', 0x280828, 0x0)

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_open_dev$vcsu-madvise-mlock-mremap-madvise-mkdirat-open-mkdirat-newfstatat-rename-syz_usb_connect-socket$inet_mptcp-socket$netlink-ioctl$sock_SIOCETHTOOL
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
syz_open_dev$vcsu(&(0x7f00000000c0), 0x0, 0x440200)
madvise(&(0x7f00004c0000/0x4000)=nil, 0x4000, 0x12)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)
madvise(&(0x7f0000000000/0xc00000)=nil, 0xc00304, 0x15)
mkdirat(0xffffffffffffff9c, &(0x7f0000002040)='./file0\x00', 0x20)
open(&(0x7f0000000040)='./file0\x00', 0x551083, 0x40)
mkdirat(0xffffffffffffff9c, &(0x7f0000001dc0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0)
newfstatat(0xffffffffffffff9c, &(0x7f0000000240)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', &(0x7f0000000100), 0x400)
rename(&(0x7f0000000580)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', &(0x7f0000000200)='./file0\x00')
syz_usb_connect(0x0, 0x24, &(0x7f0000000340)=ANY=[@ANYBLOB="120100002faa00200d050212d7470102000904b402008d509700921f8ca4f6a3c1f44bc972c5fe72148aecb059b4befd1ad497d61a7dad64cad300e02ccba46279f6411e9d091589d6204a8dc9d5f9e3c3c9a392add3b1a1324a458b78d4e9fffd3883e3804542a4c11c3a4df469d76e131474e7e2d09d78469b9884ecb39fb23e2a6970f86c128cc384e47a09bb15c2cc97de7951e40f5e2b58a8991df0b161727ad6dd2af2fc58b019f8d65397f6f67fec32df41ade91a6d86db9f63fa287baa5e0e5e7bd1370516c217164fb4e76e2fae37577244bc52ef7d3ca92e5563c6080a9f4d965674e35d73f223cd5b04f9ed38051d0600"/256], 0x0)
r2 = socket$inet_mptcp(0x2, 0x1, 0x106)
socket$netlink(0x10, 0x3, 0x18)
ioctl$sock_SIOCETHTOOL(r2, 0x89f1, &(0x7f0000000180)={'ip_vti0\x00', &(0x7f0000000300)=@ethtool_rxnfc={0x2f, 0x1, 0x46, {0xe, @tcp_ip4_spec={@empty, @initdev={0xac, 0x1e, 0x0, 0x0}, 0x4e24, 0x4e21, 0x7}, {0x0, @remote, 0xe, 0x4, [0x7, 0xffffff01]}, @ah_ip4_spec={@remote, @local, 0x73, 0x3}, {0x0, @dev={'\xaa\xaa\xaa\xaa\xaa', 0x36}, 0x8, 0x5, [0xf, 0x9]}, 0x102, 0x3}}})

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_open_dev$vcsu-madvise-mlock-mremap-madvise-mkdirat-open-mkdirat-newfstatat-rename-syz_usb_connect-socket$inet_mptcp-socket$netlink
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
syz_open_dev$vcsu(&(0x7f00000000c0), 0x0, 0x440200)
madvise(&(0x7f00004c0000/0x4000)=nil, 0x4000, 0x12)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)
madvise(&(0x7f0000000000/0xc00000)=nil, 0xc00304, 0x15)
mkdirat(0xffffffffffffff9c, &(0x7f0000002040)='./file0\x00', 0x20)
open(&(0x7f0000000040)='./file0\x00', 0x551083, 0x40)
mkdirat(0xffffffffffffff9c, &(0x7f0000001dc0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0)
newfstatat(0xffffffffffffff9c, &(0x7f0000000240)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', &(0x7f0000000100), 0x400)
rename(&(0x7f0000000580)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', &(0x7f0000000200)='./file0\x00')
syz_usb_connect(0x0, 0x24, &(0x7f0000000340)=ANY=[@ANYBLOB="120100002faa00200d050212d7470102000904b402008d509700921f8ca4f6a3c1f44bc972c5fe72148aecb059b4befd1ad497d61a7dad64cad300e02ccba46279f6411e9d091589d6204a8dc9d5f9e3c3c9a392add3b1a1324a458b78d4e9fffd3883e3804542a4c11c3a4df469d76e131474e7e2d09d78469b9884ecb39fb23e2a6970f86c128cc384e47a09bb15c2cc97de7951e40f5e2b58a8991df0b161727ad6dd2af2fc58b019f8d65397f6f67fec32df41ade91a6d86db9f63fa287baa5e0e5e7bd1370516c217164fb4e76e2fae37577244bc52ef7d3ca92e5563c6080a9f4d965674e35d73f223cd5b04f9ed38051d0600"/256], 0x0)
socket$inet_mptcp(0x2, 0x1, 0x106)
socket$netlink(0x10, 0x3, 0x18)

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_open_dev$vcsu-madvise-mlock-mremap-madvise-mkdirat-open-mkdirat-newfstatat-rename-syz_usb_connect-socket$inet_mptcp
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
syz_open_dev$vcsu(&(0x7f00000000c0), 0x0, 0x440200)
madvise(&(0x7f00004c0000/0x4000)=nil, 0x4000, 0x12)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)
madvise(&(0x7f0000000000/0xc00000)=nil, 0xc00304, 0x15)
mkdirat(0xffffffffffffff9c, &(0x7f0000002040)='./file0\x00', 0x20)
open(&(0x7f0000000040)='./file0\x00', 0x551083, 0x40)
mkdirat(0xffffffffffffff9c, &(0x7f0000001dc0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0)
newfstatat(0xffffffffffffff9c, &(0x7f0000000240)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', &(0x7f0000000100), 0x400)
rename(&(0x7f0000000580)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', &(0x7f0000000200)='./file0\x00')
syz_usb_connect(0x0, 0x24, &(0x7f0000000340)=ANY=[@ANYBLOB="120100002faa00200d050212d7470102000904b402008d509700921f8ca4f6a3c1f44bc972c5fe72148aecb059b4befd1ad497d61a7dad64cad300e02ccba46279f6411e9d091589d6204a8dc9d5f9e3c3c9a392add3b1a1324a458b78d4e9fffd3883e3804542a4c11c3a4df469d76e131474e7e2d09d78469b9884ecb39fb23e2a6970f86c128cc384e47a09bb15c2cc97de7951e40f5e2b58a8991df0b161727ad6dd2af2fc58b019f8d65397f6f67fec32df41ade91a6d86db9f63fa287baa5e0e5e7bd1370516c217164fb4e76e2fae37577244bc52ef7d3ca92e5563c6080a9f4d965674e35d73f223cd5b04f9ed38051d0600"/256], 0x0)
socket$inet_mptcp(0x2, 0x1, 0x106)

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_open_dev$vcsu-madvise-mlock-mremap-madvise-mkdirat-open-mkdirat-newfstatat-rename-syz_usb_connect
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
syz_open_dev$vcsu(&(0x7f00000000c0), 0x0, 0x440200)
madvise(&(0x7f00004c0000/0x4000)=nil, 0x4000, 0x12)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)
madvise(&(0x7f0000000000/0xc00000)=nil, 0xc00304, 0x15)
mkdirat(0xffffffffffffff9c, &(0x7f0000002040)='./file0\x00', 0x20)
open(&(0x7f0000000040)='./file0\x00', 0x551083, 0x40)
mkdirat(0xffffffffffffff9c, &(0x7f0000001dc0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0)
newfstatat(0xffffffffffffff9c, &(0x7f0000000240)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', &(0x7f0000000100), 0x400)
rename(&(0x7f0000000580)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', &(0x7f0000000200)='./file0\x00')
syz_usb_connect(0x0, 0x24, &(0x7f0000000340)=ANY=[@ANYBLOB="120100002faa00200d050212d7470102000904b402008d509700921f8ca4f6a3c1f44bc972c5fe72148aecb059b4befd1ad497d61a7dad64cad300e02ccba46279f6411e9d091589d6204a8dc9d5f9e3c3c9a392add3b1a1324a458b78d4e9fffd3883e3804542a4c11c3a4df469d76e131474e7e2d09d78469b9884ecb39fb23e2a6970f86c128cc384e47a09bb15c2cc97de7951e40f5e2b58a8991df0b161727ad6dd2af2fc58b019f8d65397f6f67fec32df41ade91a6d86db9f63fa287baa5e0e5e7bd1370516c217164fb4e76e2fae37577244bc52ef7d3ca92e5563c6080a9f4d965674e35d73f223cd5b04f9ed38051d0600"/256], 0x0)

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_open_dev$vcsu-madvise-mlock-mremap-madvise-mkdirat-open-mkdirat-newfstatat-rename
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
syz_open_dev$vcsu(&(0x7f00000000c0), 0x0, 0x440200)
madvise(&(0x7f00004c0000/0x4000)=nil, 0x4000, 0x12)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)
madvise(&(0x7f0000000000/0xc00000)=nil, 0xc00304, 0x15)
mkdirat(0xffffffffffffff9c, &(0x7f0000002040)='./file0\x00', 0x20)
open(&(0x7f0000000040)='./file0\x00', 0x551083, 0x40)
mkdirat(0xffffffffffffff9c, &(0x7f0000001dc0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0)
newfstatat(0xffffffffffffff9c, &(0x7f0000000240)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', &(0x7f0000000100), 0x400)
rename(&(0x7f0000000580)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', &(0x7f0000000200)='./file0\x00')

program crashed: INFO: task hung in do_madvise
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_open_dev$vcsu-madvise-mlock-mremap-madvise-mkdirat-open-mkdirat-newfstatat
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
syz_open_dev$vcsu(&(0x7f00000000c0), 0x0, 0x440200)
madvise(&(0x7f00004c0000/0x4000)=nil, 0x4000, 0x12)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)
madvise(&(0x7f0000000000/0xc00000)=nil, 0xc00304, 0x15)
mkdirat(0xffffffffffffff9c, &(0x7f0000002040)='./file0\x00', 0x20)
open(&(0x7f0000000040)='./file0\x00', 0x551083, 0x40)
mkdirat(0xffffffffffffff9c, &(0x7f0000001dc0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0)
newfstatat(0xffffffffffffff9c, &(0x7f0000000240)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', &(0x7f0000000100), 0x400)

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_open_dev$vcsu-madvise-mlock-mremap-madvise-mkdirat-open-mkdirat
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
syz_open_dev$vcsu(&(0x7f00000000c0), 0x0, 0x440200)
madvise(&(0x7f00004c0000/0x4000)=nil, 0x4000, 0x12)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)
madvise(&(0x7f0000000000/0xc00000)=nil, 0xc00304, 0x15)
mkdirat(0xffffffffffffff9c, &(0x7f0000002040)='./file0\x00', 0x20)
open(&(0x7f0000000040)='./file0\x00', 0x551083, 0x40)
mkdirat(0xffffffffffffff9c, &(0x7f0000001dc0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0)

program crashed: INFO: task hung in do_madvise
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_open_dev$vcsu-madvise-mlock-mremap-madvise-mkdirat-open
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
syz_open_dev$vcsu(&(0x7f00000000c0), 0x0, 0x440200)
madvise(&(0x7f00004c0000/0x4000)=nil, 0x4000, 0x12)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)
madvise(&(0x7f0000000000/0xc00000)=nil, 0xc00304, 0x15)
mkdirat(0xffffffffffffff9c, &(0x7f0000002040)='./file0\x00', 0x20)
open(&(0x7f0000000040)='./file0\x00', 0x551083, 0x40)

program crashed: INFO: task hung in do_madvise
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_open_dev$vcsu-madvise-mlock-mremap-madvise-mkdirat
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
syz_open_dev$vcsu(&(0x7f00000000c0), 0x0, 0x440200)
madvise(&(0x7f00004c0000/0x4000)=nil, 0x4000, 0x12)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)
madvise(&(0x7f0000000000/0xc00000)=nil, 0xc00304, 0x15)
mkdirat(0xffffffffffffff9c, &(0x7f0000002040)='./file0\x00', 0x20)

program crashed: INFO: task hung in do_madvise
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_open_dev$vcsu-madvise-mlock-mremap-madvise
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
syz_open_dev$vcsu(&(0x7f00000000c0), 0x0, 0x440200)
madvise(&(0x7f00004c0000/0x4000)=nil, 0x4000, 0x12)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)
madvise(&(0x7f0000000000/0xc00000)=nil, 0xc00304, 0x15)

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_open_dev$vcsu-madvise-mlock-mremap
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
syz_open_dev$vcsu(&(0x7f00000000c0), 0x0, 0x440200)
madvise(&(0x7f00004c0000/0x4000)=nil, 0x4000, 0x12)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_open_dev$vcsu-madvise-mlock
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
syz_open_dev$vcsu(&(0x7f00000000c0), 0x0, 0x440200)
madvise(&(0x7f00004c0000/0x4000)=nil, 0x4000, 0x12)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_open_dev$vcsu-madvise-mremap
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
syz_open_dev$vcsu(&(0x7f00000000c0), 0x0, 0x440200)
madvise(&(0x7f00004c0000/0x4000)=nil, 0x4000, 0x12)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_open_dev$vcsu-mremap
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
syz_open_dev$vcsu(&(0x7f00000000c0), 0x0, 0x440200)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-mremap
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
fchdir(r1)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-mremap
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
fsmount(r0, 0x0, 0x0)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-fsconfig$FSCONFIG_CMD_CREATE-mremap
detailed listing:
executing program 0:
r0 = fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): fsopen-mremap
detailed listing:
executing program 0:
fsopen(&(0x7f00000001c0)='ramfs\x00', 0x0)
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mremap
detailed listing:
executing program 0:
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)

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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mremap
program crashed: INFO: task hung in exit_mm
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mremap
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mremap
program crashed: INFO: task hung in exit_mm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mremap
program crashed: INFO: task hung in exit_mm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mremap
program crashed: INFO: task hung in exit_mm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mremap
program crashed: INFO: task hung in exit_mm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mremap
program crashed: INFO: task hung in exit_mm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mremap
program crashed: INFO: task hung in exit_mm
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mremap
detailed listing:
executing program 0:
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)

program crashed: INFO: task hung in exit_mm
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mremap
detailed listing:
executing program 0:
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)

program crashed: INFO: task hung in exit_mm
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mremap
detailed listing:
executing program 0:
mremap(&(0x7f00005ab000/0x1000)=nil, 0x1000, 0x1000, 0x7, &(0x7f0000ffe000/0x1000)=nil)

program crashed: INFO: task hung in exit_mm
validation run: crashed=true
reproducing took 1h55m10.766662587s
repro crashed as (corrupted=false):
INFO: task syz.0.16:6028 blocked for more than 143 seconds.
      Not tainted 6.16.0-rc6-next-20250718-syzkaller #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.16        state:D stack:26920 pid:6028  tgid:6028  ppid:5968   task_flags:0x40004c flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5351 [inline]
 __schedule+0x1737/0x4d30 kernel/sched/core.c:6954
 __schedule_loop kernel/sched/core.c:7036 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:7051
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7108
 rwsem_down_read_slowpath+0x5fd/0x8f0 kernel/locking/rwsem.c:1088
 __down_read_common kernel/locking/rwsem.c:1263 [inline]
 __down_read kernel/locking/rwsem.c:1276 [inline]
 down_read+0x98/0x2e0 kernel/locking/rwsem.c:1541
 mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 exit_mm+0xcc/0x2c0 kernel/exit.c:557
 do_exit+0x648/0x2300 kernel/exit.c:947
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1100
 __do_sys_exit_group kernel/exit.c:1111 [inline]
 __se_sys_exit_group kernel/exit.c:1109 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1109
 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f23b738e9a9
RSP: 002b:00007ffcc458a7b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f23b738e9a9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000003 R08: 00000001c458a8af R09: 00007f23b7580260
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f23b7580260 R14: 0000000000000003 R15: 00007ffcc458a870
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/31:
 #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6770
2 locks held by kworker/u8:4/59:
2 locks held by getty/5611:
 #0: ffff8880333700a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 drivers/tty/n_tty.c:2222
1 lock held by syz.0.16/6028:
 #0: ffff88807baacd20 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88807baacd20 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.0.16/6029:
1 lock held by syz.1.17/6051:
 #0: ffff88807baa81e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88807baa81e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.1.17/6052:
1 lock held by syz.2.18/6075:
 #0: ffff88807d2157e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88807d2157e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.2.18/6076:
1 lock held by syz.3.19/6102:
 #0: ffff888033442220 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff888033442220 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.3.19/6103:
1 lock held by syz.4.20/6131:
 #0: ffff8880244281e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff8880244281e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.4.20/6132:
1 lock held by syz.5.21/6161:
 #0: ffff88802442ed60 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88802442ed60 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.5.21/6162:
1 lock held by syz.6.22/6197:
 #0: ffff888024428ca0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff888024428ca0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.6.22/6198:
1 lock held by syz.7.23/6229:
 #0: ffff888031fd37a0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff888031fd37a0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.7.23/6230:

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x39e/0x3d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:328 [inline]
 watchdog+0xf93/0xfe0 kernel/hung_task.c:491
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148
 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: 6029 Comm: syz.0.16 Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:check_preemption_disabled+0x63/0x120 lib/smp_processor_id.c:19
Code: 08 0f 85 cc 00 00 00 48 83 c4 10 5b 41 5e 41 5f 5d e9 01 cb 02 00 cc 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 <74> c8 65 4c 8b 3c 25 08 50 e7 92 41 f6 47 2f 04 74 0a 41 83 bf 18
RSP: 0018:ffffc90003d77200 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 0000000080000000
RDX: 0000000000000000 RSI: ffffffff8dc7dde5 RDI: ffffffff8c04d400
RBP: 00000000ffffffff R08: ffff88804f271e00 R09: 0000000000000003
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000246
R13: ffff88804f271e00 R14: ffff88807baacd20 R15: 0000000000000300
FS:  00007f23b82b66c0(0000) GS:ffff8881257ab000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f35ffff CR3: 000000002fe32000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 lockdep_recursion_inc kernel/locking/lockdep.c:468 [inline]
 lock_is_held_type+0x79/0x190 kernel/locking/lockdep.c:5942
 lock_is_held include/linux/lockdep.h:249 [inline]
 mt_locked lib/maple_tree.c:-1 [inline]
 mt_slot lib/maple_tree.c:800 [inline]
 mas_slot lib/maple_tree.c:833 [inline]
 mt_validate_nulls lib/maple_tree.c:7560 [inline]
 mt_validate+0x3dfc/0x4380 lib/maple_tree.c:7615
 validate_mm+0xb6/0x4b0 mm/vma.c:651
 vma_link+0x366/0x450 mm/vma.c:1799
 copy_vma+0x70c/0x940 mm/vma.c:1880
 copy_vma_and_data mm/mremap.c:1184 [inline]
 move_vma+0x81f/0x1840 mm/mremap.c:1282
 mremap_to+0x6d6/0x7a0 mm/mremap.c:1406
 remap_move mm/mremap.c:1863 [inline]
 do_mremap mm/mremap.c:1906 [inline]
 __do_sys_mremap mm/mremap.c:1970 [inline]
 __se_sys_mremap+0xa0b/0xef0 mm/mremap.c:1938
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f23b738e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f23b82b6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000019
RAX: ffffffffffffffda RBX: 00007f23b75b5fa0 RCX: 00007f23b738e9a9
RDX: 0000000000001000 RSI: 0000000000001000 RDI: 00002000005ab000
RBP: 00007f23b7410d69 R08: 0000200000ffe000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f23b75b5fa0 R15: 00007ffcc458a458
 </TASK>

final repro crashed as (corrupted=false):
INFO: task syz.0.16:6028 blocked for more than 143 seconds.
      Not tainted 6.16.0-rc6-next-20250718-syzkaller #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.16        state:D stack:26920 pid:6028  tgid:6028  ppid:5968   task_flags:0x40004c flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5351 [inline]
 __schedule+0x1737/0x4d30 kernel/sched/core.c:6954
 __schedule_loop kernel/sched/core.c:7036 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:7051
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7108
 rwsem_down_read_slowpath+0x5fd/0x8f0 kernel/locking/rwsem.c:1088
 __down_read_common kernel/locking/rwsem.c:1263 [inline]
 __down_read kernel/locking/rwsem.c:1276 [inline]
 down_read+0x98/0x2e0 kernel/locking/rwsem.c:1541
 mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 exit_mm+0xcc/0x2c0 kernel/exit.c:557
 do_exit+0x648/0x2300 kernel/exit.c:947
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1100
 __do_sys_exit_group kernel/exit.c:1111 [inline]
 __se_sys_exit_group kernel/exit.c:1109 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1109
 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f23b738e9a9
RSP: 002b:00007ffcc458a7b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f23b738e9a9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000003 R08: 00000001c458a8af R09: 00007f23b7580260
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f23b7580260 R14: 0000000000000003 R15: 00007ffcc458a870
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/31:
 #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6770
2 locks held by kworker/u8:4/59:
2 locks held by getty/5611:
 #0: ffff8880333700a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 drivers/tty/n_tty.c:2222
1 lock held by syz.0.16/6028:
 #0: ffff88807baacd20 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88807baacd20 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.0.16/6029:
1 lock held by syz.1.17/6051:
 #0: ffff88807baa81e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88807baa81e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.1.17/6052:
1 lock held by syz.2.18/6075:
 #0: ffff88807d2157e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88807d2157e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.2.18/6076:
1 lock held by syz.3.19/6102:
 #0: ffff888033442220 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff888033442220 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.3.19/6103:
1 lock held by syz.4.20/6131:
 #0: ffff8880244281e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff8880244281e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.4.20/6132:
1 lock held by syz.5.21/6161:
 #0: ffff88802442ed60 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff88802442ed60 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.5.21/6162:
1 lock held by syz.6.22/6197:
 #0: ffff888024428ca0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff888024428ca0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.6.22/6198:
1 lock held by syz.7.23/6229:
 #0: ffff888031fd37a0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline]
 #0: ffff888031fd37a0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557
1 lock held by syz.7.23/6230:

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x39e/0x3d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:328 [inline]
 watchdog+0xf93/0xfe0 kernel/hung_task.c:491
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148
 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: 6029 Comm: syz.0.16 Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:check_preemption_disabled+0x63/0x120 lib/smp_processor_id.c:19
Code: 08 0f 85 cc 00 00 00 48 83 c4 10 5b 41 5e 41 5f 5d e9 01 cb 02 00 cc 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 <74> c8 65 4c 8b 3c 25 08 50 e7 92 41 f6 47 2f 04 74 0a 41 83 bf 18
RSP: 0018:ffffc90003d77200 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 0000000080000000
RDX: 0000000000000000 RSI: ffffffff8dc7dde5 RDI: ffffffff8c04d400
RBP: 00000000ffffffff R08: ffff88804f271e00 R09: 0000000000000003
R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000246
R13: ffff88804f271e00 R14: ffff88807baacd20 R15: 0000000000000300
FS:  00007f23b82b66c0(0000) GS:ffff8881257ab000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f35ffff CR3: 000000002fe32000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 lockdep_recursion_inc kernel/locking/lockdep.c:468 [inline]
 lock_is_held_type+0x79/0x190 kernel/locking/lockdep.c:5942
 lock_is_held include/linux/lockdep.h:249 [inline]
 mt_locked lib/maple_tree.c:-1 [inline]
 mt_slot lib/maple_tree.c:800 [inline]
 mas_slot lib/maple_tree.c:833 [inline]
 mt_validate_nulls lib/maple_tree.c:7560 [inline]
 mt_validate+0x3dfc/0x4380 lib/maple_tree.c:7615
 validate_mm+0xb6/0x4b0 mm/vma.c:651
 vma_link+0x366/0x450 mm/vma.c:1799
 copy_vma+0x70c/0x940 mm/vma.c:1880
 copy_vma_and_data mm/mremap.c:1184 [inline]
 move_vma+0x81f/0x1840 mm/mremap.c:1282
 mremap_to+0x6d6/0x7a0 mm/mremap.c:1406
 remap_move mm/mremap.c:1863 [inline]
 do_mremap mm/mremap.c:1906 [inline]
 __do_sys_mremap mm/mremap.c:1970 [inline]
 __se_sys_mremap+0xa0b/0xef0 mm/mremap.c:1938
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f23b738e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f23b82b6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000019
RAX: ffffffffffffffda RBX: 00007f23b75b5fa0 RCX: 00007f23b738e9a9
RDX: 0000000000001000 RSI: 0000000000001000 RDI: 00002000005ab000
RBP: 00007f23b7410d69 R08: 0000200000ffe000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f23b75b5fa0 R15: 00007ffcc458a458
 </TASK>