Extracting prog: 1m4.84275662s
Minimizing prog: 21m0.333251791s
Simplifying prog options: 5m51.168973857s
Extracting C: 1m41.609754072s
Simplifying C: 0s


extracting reproducer from 66 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$unix-socket$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000080)={<r0=>0xffffffffffffffff})
r1 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r1, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r1, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(r0, 0xffffffffffffffff, 0x0)

program crashed: WARNING in smb2_add_credits
single: successfully extracted reproducer
found reproducer with 7 syscalls
minimizing guilty program
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$unix-socket$inet_tcp-bind$inet-listen-mkdirat-mount
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000080))
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')

program did not crash
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$unix-socket$inet_tcp-bind$inet-listen-mkdirat-close_range
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000080)={<r0=>0xffffffffffffffff})
r1 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r1, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r1, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
close_range(r0, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$unix-socket$inet_tcp-bind$inet-listen-mount-close_range
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000080)={<r0=>0xffffffffffffffff})
r1 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r1, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r1, 0x10)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(r0, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$unix-socket$inet_tcp-bind$inet-mkdirat-mount-close_range
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000080)={<r0=>0xffffffffffffffff})
r1 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r1, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(r0, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$unix-socket$inet_tcp-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000080)={<r0=>0xffffffffffffffff})
r1 = socket$inet_tcp(0x2, 0x1, 0x0)
listen(r1, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(r0, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$unix-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000080)={<r0=>0xffffffffffffffff})
bind$inet(0xffffffffffffffff, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(0xffffffffffffffff, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(r0, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program crashed: KASAN: use-after-free Read in reconn_set_ipaddr_from_hostname
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, 0x0, 0x0)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', 0x0, 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, 0x0)
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
program did not crash
simplifying guilty program options
testing program (duration=45.185502795s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=45.185502795s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=45.185502795s, {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}}): socket$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program crashed: KASAN: use-after-free Read in reconn_set_ipaddr_from_hostname
validation run: crashed=true
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program crashed: KASAN: use-after-free Read in reconn_set_ipaddr_from_hostname
validation run: crashed=true
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=45.185502795s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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$inet_tcp-bind$inet-listen-mkdirat-mount-close_range
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000100)={0x2, 0x3039, @loopback}, 0x10)
listen(r0, 0x10)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./cifs\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./cifs\x00', &(0x7f0000000240)='cifs\x00', 0x0, &(0x7f0000000300)='source=//127.0.0.1/test,username=root,password=root,port=12345,handletimeout=1\x00')
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0)

program crashed: KASAN: use-after-free Read in reconn_set_ipaddr_from_hostname
validation run: crashed=true
reproducing took 46m0.920902819s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: use-after-free in string_nocheck lib/vsprintf.c:642 [inline]
BUG: KASAN: use-after-free in string+0x204/0x290 lib/vsprintf.c:724
Read of size 1 at addr ffff8880572c37e0 by task cifsd/4528

CPU: 1 PID: 4528 Comm: cifsd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 print_address_description+0x60/0x2d0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0xdf/0x130 mm/kasan/report.c:451
 string_nocheck lib/vsprintf.c:642 [inline]
 string+0x204/0x290 lib/vsprintf.c:724
 vsnprintf+0x10db/0x1c20 lib/vsprintf.c:2811
 vscnprintf lib/vsprintf.c:2914 [inline]
 scnprintf+0xe5/0x180 lib/vsprintf.c:2968
 reconn_set_ipaddr_from_hostname+0x112/0x580 fs/cifs/connect.c:107
 __cifs_reconnect fs/cifs/connect.c:288 [inline]
 cifs_reconnect+0x470/0x1350 fs/cifs/connect.c:447
 cifs_readv_from_socket+0x7c4/0x8b0 fs/cifs/connect.c:-1
 cifs_read_from_socket fs/cifs/connect.c:626 [inline]
 cifs_demultiplex_thread+0x53b/0x35b0 fs/cifs/connect.c:989
 kthread+0x42e/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>

Allocated by task 4527:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc mm/kasan/common.c:513 [inline]
 __kasan_kmalloc+0xaf/0xe0 mm/kasan/common.c:522
 kstrdup+0x32/0x70 mm/util.c:60
 cifs_get_tcp_session+0xde/0x18f0 fs/cifs/connect.c:1431
 mount_get_conns+0xc3/0xe00 fs/cifs/connect.c:2988
 is_dfs_mount fs/cifs/connect.c:3354 [inline]
 cifs_mount+0x162/0x1380 fs/cifs/connect.c:3549
 cifs_smb3_do_mount+0x366/0x760 fs/cifs/cifsfs.c:895
 smb3_get_tree_common fs/cifs/fs_context.c:708 [inline]
 smb3_get_tree+0x59a/0xa80 fs/cifs/fs_context.c:726
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x247/0xa40 fs/namespace.c:3034
 do_mount fs/namespace.c:3377 [inline]
 __do_sys_mount fs/namespace.c:3585 [inline]
 __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3562
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

Freed by task 4527:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:46
 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
 ____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1710 [inline]
 slab_free_freelist_hook+0xec/0x170 mm/slub.c:1736
 slab_free mm/slub.c:3504 [inline]
 kfree+0xef/0x2a0 mm/slub.c:4564
 cifs_put_tcp_session+0x2e1/0x3d0 fs/cifs/connect.c:1404
 mount_put_conns+0xb0/0x270 fs/cifs/connect.c:2969
 cifs_mount+0xbf5/0x1380 fs/cifs/connect.c:3597
 cifs_smb3_do_mount+0x366/0x760 fs/cifs/cifsfs.c:895
 smb3_get_tree_common fs/cifs/fs_context.c:708 [inline]
 smb3_get_tree+0x59a/0xa80 fs/cifs/fs_context.c:726
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x247/0xa40 fs/namespace.c:3034
 do_mount fs/namespace.c:3377 [inline]
 __do_sys_mount fs/namespace.c:3585 [inline]
 __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3562
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

The buggy address belongs to the object at ffff8880572c37e0
 which belongs to the cache kmalloc-16 of size 16
The buggy address is located 0 bytes inside of
 16-byte region [ffff8880572c37e0, ffff8880572c37f0)
The buggy address belongs to the page:
page:ffffea00015cb0c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x572c3
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 0000000000000000 dead000000000122 ffff888016c413c0
raw: 0000000000000000 0000000000800080 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 4322, ts 88066768690, free_ts 88066684876
 prep_new_page mm/page_alloc.c:2426 [inline]
 get_page_from_freelist+0x24f6/0x2670 mm/page_alloc.c:4192
 __alloc_pages+0x1ee/0x480 mm/page_alloc.c:5501
 alloc_slab_page mm/slub.c:1780 [inline]
 allocate_slab mm/slub.c:1917 [inline]
 new_slab+0xc0/0x4b0 mm/slub.c:1980
 ___slab_alloc+0x807/0xdd0 mm/slub.c:3013
 __slab_alloc mm/slub.c:3100 [inline]
 slab_alloc_node mm/slub.c:3191 [inline]
 __kmalloc_node+0x142/0x3a0 mm/slub.c:4456
 kmalloc_node include/linux/slab.h:630 [inline]
 kvmalloc_node+0x84/0x130 mm/util.c:619
 translate_table+0x191/0x2020 net/ipv6/netfilter/ip6_tables.c:697
 do_replace net/ipv6/netfilter/ip6_tables.c:1154 [inline]
 do_ip6t_set_ctl+0x96c/0xd90 net/ipv6/netfilter/ip6_tables.c:1643
 nf_setsockopt+0x25f/0x280 net/netfilter/nf_sockopt.c:101
 ipv6_setsockopt+0x20ba/0x3cc0 net/ipv6/ipv6_sockglue.c:1014
 tcp_setsockopt+0x229/0x1e60 net/ipv4/tcp.c:3722
 __sys_setsockopt+0x2bf/0x3d0 net/socket.c:2213
 __do_sys_setsockopt net/socket.c:2224 [inline]
 __se_sys_setsockopt net/socket.c:2221 [inline]
 __x64_sys_setsockopt+0xb1/0xc0 net/socket.c:2221
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1340 [inline]
 free_pcp_prepare mm/page_alloc.c:1391 [inline]
 free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
 free_unref_page+0x8f/0x2a0 mm/page_alloc.c:3396
 __vunmap+0x8e0/0xa80 mm/vmalloc.c:2628
 copy_entries_to_user net/ipv6/netfilter/ip6_tables.c:882 [inline]
 get_entries net/ipv6/netfilter/ip6_tables.c:1039 [inline]
 do_ip6t_get_ctl+0xe4b/0x1130 net/ipv6/netfilter/ip6_tables.c:1676
 nf_getsockopt+0x25e/0x280 net/netfilter/nf_sockopt.c:116
 ipv6_getsockopt+0x43f/0x2390 net/ipv6/ipv6_sockglue.c:1492
 tcp_getsockopt+0x209/0x2530 net/ipv4/tcp.c:4323
 __sys_getsockopt+0x1b0/0x230 net/socket.c:2257
 __do_sys_getsockopt net/socket.c:2272 [inline]
 __se_sys_getsockopt net/socket.c:2269 [inline]
 __x64_sys_getsockopt+0xb1/0xc0 net/socket.c:2269
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

Memory state around the buggy address:
 ffff8880572c3680: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
 ffff8880572c3700: fa fb fc fc fa fb fc fc 00 06 fc fc 00 00 fc fc
>ffff8880572c3780: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
                                                       ^
 ffff8880572c3800: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
 ffff8880572c3880: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: use-after-free in string_nocheck lib/vsprintf.c:642 [inline]
BUG: KASAN: use-after-free in string+0x204/0x290 lib/vsprintf.c:724
Read of size 1 at addr ffff8880572c37e0 by task cifsd/4528

CPU: 1 PID: 4528 Comm: cifsd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 print_address_description+0x60/0x2d0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0xdf/0x130 mm/kasan/report.c:451
 string_nocheck lib/vsprintf.c:642 [inline]
 string+0x204/0x290 lib/vsprintf.c:724
 vsnprintf+0x10db/0x1c20 lib/vsprintf.c:2811
 vscnprintf lib/vsprintf.c:2914 [inline]
 scnprintf+0xe5/0x180 lib/vsprintf.c:2968
 reconn_set_ipaddr_from_hostname+0x112/0x580 fs/cifs/connect.c:107
 __cifs_reconnect fs/cifs/connect.c:288 [inline]
 cifs_reconnect+0x470/0x1350 fs/cifs/connect.c:447
 cifs_readv_from_socket+0x7c4/0x8b0 fs/cifs/connect.c:-1
 cifs_read_from_socket fs/cifs/connect.c:626 [inline]
 cifs_demultiplex_thread+0x53b/0x35b0 fs/cifs/connect.c:989
 kthread+0x42e/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>

Allocated by task 4527:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc mm/kasan/common.c:513 [inline]
 __kasan_kmalloc+0xaf/0xe0 mm/kasan/common.c:522
 kstrdup+0x32/0x70 mm/util.c:60
 cifs_get_tcp_session+0xde/0x18f0 fs/cifs/connect.c:1431
 mount_get_conns+0xc3/0xe00 fs/cifs/connect.c:2988
 is_dfs_mount fs/cifs/connect.c:3354 [inline]
 cifs_mount+0x162/0x1380 fs/cifs/connect.c:3549
 cifs_smb3_do_mount+0x366/0x760 fs/cifs/cifsfs.c:895
 smb3_get_tree_common fs/cifs/fs_context.c:708 [inline]
 smb3_get_tree+0x59a/0xa80 fs/cifs/fs_context.c:726
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x247/0xa40 fs/namespace.c:3034
 do_mount fs/namespace.c:3377 [inline]
 __do_sys_mount fs/namespace.c:3585 [inline]
 __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3562
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

Freed by task 4527:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:46
 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
 ____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1710 [inline]
 slab_free_freelist_hook+0xec/0x170 mm/slub.c:1736
 slab_free mm/slub.c:3504 [inline]
 kfree+0xef/0x2a0 mm/slub.c:4564
 cifs_put_tcp_session+0x2e1/0x3d0 fs/cifs/connect.c:1404
 mount_put_conns+0xb0/0x270 fs/cifs/connect.c:2969
 cifs_mount+0xbf5/0x1380 fs/cifs/connect.c:3597
 cifs_smb3_do_mount+0x366/0x760 fs/cifs/cifsfs.c:895
 smb3_get_tree_common fs/cifs/fs_context.c:708 [inline]
 smb3_get_tree+0x59a/0xa80 fs/cifs/fs_context.c:726
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x247/0xa40 fs/namespace.c:3034
 do_mount fs/namespace.c:3377 [inline]
 __do_sys_mount fs/namespace.c:3585 [inline]
 __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3562
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

The buggy address belongs to the object at ffff8880572c37e0
 which belongs to the cache kmalloc-16 of size 16
The buggy address is located 0 bytes inside of
 16-byte region [ffff8880572c37e0, ffff8880572c37f0)
The buggy address belongs to the page:
page:ffffea00015cb0c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x572c3
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 0000000000000000 dead000000000122 ffff888016c413c0
raw: 0000000000000000 0000000000800080 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 4322, ts 88066768690, free_ts 88066684876
 prep_new_page mm/page_alloc.c:2426 [inline]
 get_page_from_freelist+0x24f6/0x2670 mm/page_alloc.c:4192
 __alloc_pages+0x1ee/0x480 mm/page_alloc.c:5501
 alloc_slab_page mm/slub.c:1780 [inline]
 allocate_slab mm/slub.c:1917 [inline]
 new_slab+0xc0/0x4b0 mm/slub.c:1980
 ___slab_alloc+0x807/0xdd0 mm/slub.c:3013
 __slab_alloc mm/slub.c:3100 [inline]
 slab_alloc_node mm/slub.c:3191 [inline]
 __kmalloc_node+0x142/0x3a0 mm/slub.c:4456
 kmalloc_node include/linux/slab.h:630 [inline]
 kvmalloc_node+0x84/0x130 mm/util.c:619
 translate_table+0x191/0x2020 net/ipv6/netfilter/ip6_tables.c:697
 do_replace net/ipv6/netfilter/ip6_tables.c:1154 [inline]
 do_ip6t_set_ctl+0x96c/0xd90 net/ipv6/netfilter/ip6_tables.c:1643
 nf_setsockopt+0x25f/0x280 net/netfilter/nf_sockopt.c:101
 ipv6_setsockopt+0x20ba/0x3cc0 net/ipv6/ipv6_sockglue.c:1014
 tcp_setsockopt+0x229/0x1e60 net/ipv4/tcp.c:3722
 __sys_setsockopt+0x2bf/0x3d0 net/socket.c:2213
 __do_sys_setsockopt net/socket.c:2224 [inline]
 __se_sys_setsockopt net/socket.c:2221 [inline]
 __x64_sys_setsockopt+0xb1/0xc0 net/socket.c:2221
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1340 [inline]
 free_pcp_prepare mm/page_alloc.c:1391 [inline]
 free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
 free_unref_page+0x8f/0x2a0 mm/page_alloc.c:3396
 __vunmap+0x8e0/0xa80 mm/vmalloc.c:2628
 copy_entries_to_user net/ipv6/netfilter/ip6_tables.c:882 [inline]
 get_entries net/ipv6/netfilter/ip6_tables.c:1039 [inline]
 do_ip6t_get_ctl+0xe4b/0x1130 net/ipv6/netfilter/ip6_tables.c:1676
 nf_getsockopt+0x25e/0x280 net/netfilter/nf_sockopt.c:116
 ipv6_getsockopt+0x43f/0x2390 net/ipv6/ipv6_sockglue.c:1492
 tcp_getsockopt+0x209/0x2530 net/ipv4/tcp.c:4323
 __sys_getsockopt+0x1b0/0x230 net/socket.c:2257
 __do_sys_getsockopt net/socket.c:2272 [inline]
 __se_sys_getsockopt net/socket.c:2269 [inline]
 __x64_sys_getsockopt+0xb1/0xc0 net/socket.c:2269
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

Memory state around the buggy address:
 ffff8880572c3680: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
 ffff8880572c3700: fa fb fc fc fa fb fc fc 00 06 fc fc 00 00 fc fc
>ffff8880572c3780: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
                                                       ^
 ffff8880572c3800: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
 ffff8880572c3880: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
==================================================================