Extracting prog: 35.145530661s
Minimizing prog: 37m53.738238851s
Simplifying prog options: 0s
Extracting C: 1m39.838049993s
Simplifying C: 9m27.594631799s


extracting reproducer from 30 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-ioctl$sock_SIOCGIFINDEX_80211-mlock-userfaultfd-epoll_ctl$EPOLL_CTL_ADD-ioctl$UFFDIO_REGISTER-mremap-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-sendmsg$nl_generic-ioctl$SW_SYNC_IOC_CREATE_FENCE-writev-close_range-ioctl$COMEDI_DEVCONFIG-fspick
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000013c0)={'wlan1\x00'})
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
r2 = userfaultfd(0x801)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x1})
mremap(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x2000, 0x3, &(0x7f00007fe000/0x800000)=nil)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
r3 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r3, &(0x7f0000019680)=""/102392, 0x18ff8)
sendmsg$nl_generic(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000180)={&(0x7f00000001c0)=ANY=[@ANYBLOB="873700003e0007012dbd700000000098ed9abec3176a20ce060d284a6f3a00017c00000c00c280000016"], 0x34}, 0x1, 0x0, 0x0, 0x4048011}, 0xc000)
ioctl$SW_SYNC_IOC_CREATE_FENCE(0xffffffffffffffff, 0xc0285700, &(0x7f0000000100)={0xc, "5660359c3245d1c42317afad7d48ed51000000000000000100"})
writev(0xffffffffffffffff, 0x0, 0x0)
close_range(0xffffffffffffffff, r1, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)
fspick(0xffffffffffffff9c, 0x0, 0xf)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
single: successfully extracted reproducer
found reproducer with 25 syscalls
minimizing guilty program
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-ioctl$sock_SIOCGIFINDEX_80211-mlock-userfaultfd-epoll_ctl$EPOLL_CTL_ADD-ioctl$UFFDIO_REGISTER-mremap-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-sendmsg$nl_generic-ioctl$SW_SYNC_IOC_CREATE_FENCE-writev-close_range-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000013c0)={'wlan1\x00'})
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
r2 = userfaultfd(0x801)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x1})
mremap(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x2000, 0x3, &(0x7f00007fe000/0x800000)=nil)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
r3 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r3, &(0x7f0000019680)=""/102392, 0x18ff8)
sendmsg$nl_generic(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000180)={&(0x7f00000001c0)=ANY=[@ANYBLOB="873700003e0007012dbd700000000098ed9abec3176a20ce060d284a6f3a00017c00000c00c280000016"], 0x34}, 0x1, 0x0, 0x0, 0x4048011}, 0xc000)
ioctl$SW_SYNC_IOC_CREATE_FENCE(0xffffffffffffffff, 0xc0285700, &(0x7f0000000100)={0xc, "5660359c3245d1c42317afad7d48ed51000000000000000100"})
writev(0xffffffffffffffff, 0x0, 0x0)
close_range(0xffffffffffffffff, r1, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-ioctl$sock_SIOCGIFINDEX_80211-mlock-userfaultfd-epoll_ctl$EPOLL_CTL_ADD-ioctl$UFFDIO_REGISTER-mremap-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-sendmsg$nl_generic-ioctl$SW_SYNC_IOC_CREATE_FENCE-writev-close_range
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000013c0)={'wlan1\x00'})
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
r2 = userfaultfd(0x801)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x1})
mremap(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x2000, 0x3, &(0x7f00007fe000/0x800000)=nil)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
r3 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r3, &(0x7f0000019680)=""/102392, 0x18ff8)
sendmsg$nl_generic(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000180)={&(0x7f00000001c0)=ANY=[@ANYBLOB="873700003e0007012dbd700000000098ed9abec3176a20ce060d284a6f3a00017c00000c00c280000016"], 0x34}, 0x1, 0x0, 0x0, 0x4048011}, 0xc000)
ioctl$SW_SYNC_IOC_CREATE_FENCE(0xffffffffffffffff, 0xc0285700, &(0x7f0000000100)={0xc, "5660359c3245d1c42317afad7d48ed51000000000000000100"})
writev(0xffffffffffffffff, 0x0, 0x0)
close_range(0xffffffffffffffff, r1, 0x0)

program did not crash
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-ioctl$sock_SIOCGIFINDEX_80211-mlock-userfaultfd-epoll_ctl$EPOLL_CTL_ADD-ioctl$UFFDIO_REGISTER-mremap-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-sendmsg$nl_generic-ioctl$SW_SYNC_IOC_CREATE_FENCE-writev-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000013c0)={'wlan1\x00'})
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
r2 = userfaultfd(0x801)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x1})
mremap(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x2000, 0x3, &(0x7f00007fe000/0x800000)=nil)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
r3 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r3, &(0x7f0000019680)=""/102392, 0x18ff8)
sendmsg$nl_generic(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000180)={&(0x7f00000001c0)=ANY=[@ANYBLOB="873700003e0007012dbd700000000098ed9abec3176a20ce060d284a6f3a00017c00000c00c280000016"], 0x34}, 0x1, 0x0, 0x0, 0x4048011}, 0xc000)
ioctl$SW_SYNC_IOC_CREATE_FENCE(0xffffffffffffffff, 0xc0285700, &(0x7f0000000100)={0xc, "5660359c3245d1c42317afad7d48ed51000000000000000100"})
writev(0xffffffffffffffff, 0x0, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-ioctl$sock_SIOCGIFINDEX_80211-mlock-userfaultfd-epoll_ctl$EPOLL_CTL_ADD-ioctl$UFFDIO_REGISTER-mremap-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-sendmsg$nl_generic-ioctl$SW_SYNC_IOC_CREATE_FENCE-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000013c0)={'wlan1\x00'})
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
r2 = userfaultfd(0x801)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x1})
mremap(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x2000, 0x3, &(0x7f00007fe000/0x800000)=nil)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
r3 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r3, &(0x7f0000019680)=""/102392, 0x18ff8)
sendmsg$nl_generic(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000180)={&(0x7f00000001c0)=ANY=[@ANYBLOB="873700003e0007012dbd700000000098ed9abec3176a20ce060d284a6f3a00017c00000c00c280000016"], 0x34}, 0x1, 0x0, 0x0, 0x4048011}, 0xc000)
ioctl$SW_SYNC_IOC_CREATE_FENCE(0xffffffffffffffff, 0xc0285700, &(0x7f0000000100)={0xc, "5660359c3245d1c42317afad7d48ed51000000000000000100"})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-ioctl$sock_SIOCGIFINDEX_80211-mlock-userfaultfd-epoll_ctl$EPOLL_CTL_ADD-ioctl$UFFDIO_REGISTER-mremap-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-sendmsg$nl_generic-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000013c0)={'wlan1\x00'})
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
r2 = userfaultfd(0x801)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x1})
mremap(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x2000, 0x3, &(0x7f00007fe000/0x800000)=nil)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
r3 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r3, &(0x7f0000019680)=""/102392, 0x18ff8)
sendmsg$nl_generic(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000180)={&(0x7f00000001c0)=ANY=[@ANYBLOB="873700003e0007012dbd700000000098ed9abec3176a20ce060d284a6f3a00017c00000c00c280000016"], 0x34}, 0x1, 0x0, 0x0, 0x4048011}, 0xc000)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-ioctl$sock_SIOCGIFINDEX_80211-mlock-userfaultfd-epoll_ctl$EPOLL_CTL_ADD-ioctl$UFFDIO_REGISTER-mremap-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000013c0)={'wlan1\x00'})
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
r2 = userfaultfd(0x801)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x1})
mremap(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x2000, 0x3, &(0x7f00007fe000/0x800000)=nil)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
r3 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r3, &(0x7f0000019680)=""/102392, 0x18ff8)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-ioctl$sock_SIOCGIFINDEX_80211-mlock-userfaultfd-epoll_ctl$EPOLL_CTL_ADD-ioctl$UFFDIO_REGISTER-mremap-prctl$PR_SCHED_CORE-syz_open_dev$MSR-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000013c0)={'wlan1\x00'})
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
r2 = userfaultfd(0x801)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x1})
mremap(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x2000, 0x3, &(0x7f00007fe000/0x800000)=nil)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-ioctl$sock_SIOCGIFINDEX_80211-mlock-userfaultfd-epoll_ctl$EPOLL_CTL_ADD-ioctl$UFFDIO_REGISTER-mremap-prctl$PR_SCHED_CORE-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000013c0)={'wlan1\x00'})
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
r2 = userfaultfd(0x801)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x1})
mremap(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x2000, 0x3, &(0x7f00007fe000/0x800000)=nil)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-ioctl$sock_SIOCGIFINDEX_80211-mlock-userfaultfd-epoll_ctl$EPOLL_CTL_ADD-ioctl$UFFDIO_REGISTER-mremap-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000013c0)={'wlan1\x00'})
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
r2 = userfaultfd(0x801)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x1})
mremap(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x2000, 0x3, &(0x7f00007fe000/0x800000)=nil)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-ioctl$sock_SIOCGIFINDEX_80211-mlock-userfaultfd-epoll_ctl$EPOLL_CTL_ADD-ioctl$UFFDIO_REGISTER-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000013c0)={'wlan1\x00'})
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
r2 = userfaultfd(0x801)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x1})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-ioctl$sock_SIOCGIFINDEX_80211-mlock-userfaultfd-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000013c0)={'wlan1\x00'})
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
userfaultfd(0x801)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-ioctl$sock_SIOCGIFINDEX_80211-mlock-userfaultfd-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000013c0)={'wlan1\x00'})
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
userfaultfd(0x801)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program did not crash
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-ioctl$sock_SIOCGIFINDEX_80211-mlock-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000013c0)={'wlan1\x00'})
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-ioctl$sock_SIOCGIFINDEX_80211-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000013c0)={'wlan1\x00'})
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-sched_setaffinity-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0xfffffffffffffffe)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-sendmsg$nl_crypto-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
sendmsg$nl_crypto(0xffffffffffffffff, 0x0, 0x0)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-sched_setscheduler-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x1)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-prlimit64-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000000)={0x8, 0x88}, 0x0)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$sock_SIOCGPGRP-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, 0x0)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, 0xffffffffffffffff, &(0x7f0000000280)={0x40000004})
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-syz_genetlink_get_family_id$tipc-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
syz_genetlink_get_family_id$tipc(0x0, 0xffffffffffffffff)
epoll_ctl$EPOLL_CTL_ADD(0xffffffffffffffff, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program did not crash
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-openat$comedi-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
r0 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, 0xffffffffffffffff, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(0xffffffffffffffff, 0x40946400, 0x0)

program did not crash
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
r0 = openat$comedi(0xffffffffffffff9c, 0x0, 0x181001, 0x0)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program did not crash
testing program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.382924371s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
simplifying C reproducer
testing compiled C program (duration=45.382924371s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing compiled C program (duration=45.382924371s, {Threaded:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing compiled C program (duration=45.382924371s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing compiled C program (duration=45.382924371s, {Threaded:false Repeat:false 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}}): openat$comedi-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing compiled C program (duration=45.382924371s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing compiled C program (duration=45.382924371s, {Threaded:false Repeat:false 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}}): openat$comedi-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing compiled C program (duration=45.382924371s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$comedi-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
testing program (duration=45.382924371s, {Threaded:false Repeat:false 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}}): openat$comedi-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
validation run: crashed=true
testing program (duration=45.382924371s, {Threaded:false Repeat:false 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}}): openat$comedi-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
validation run: crashed=true
testing program (duration=45.382924371s, {Threaded:false Repeat:false 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}}): openat$comedi-epoll_create-epoll_ctl$EPOLL_CTL_ADD-ioctl$COMEDI_DEVCONFIG
detailed listing:
executing program 0:
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000040)='/dev/comedi4\x00', 0x181001, 0x0)
r1 = epoll_create(0x3)
epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000080)={0x80000010})
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, 0x0)

program crashed: KASAN: slab-use-after-free Read in remove_wait_queue
validation run: crashed=true
reproducing took 54m15.002769443s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
BUG: KASAN: slab-use-after-free in _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
Read of size 1 at addr ffff88814bc724b0 by task syz.0.16/6011

CPU: 0 UID: 0 PID: 6011 Comm: syz.0.16 Not tainted 6.16.0-rc4-syzkaller-00319-g05df91921da6 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xcd/0x680 mm/kasan/report.c:521
 kasan_report+0xe0/0x110 mm/kasan/report.c:634
 __kasan_check_byte+0x36/0x50 mm/kasan/common.c:557
 kasan_check_byte include/linux/kasan.h:399 [inline]
 lock_acquire kernel/locking/lockdep.c:5845 [inline]
 lock_acquire+0xfc/0x350 kernel/locking/lockdep.c:5828
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
 remove_wait_queue+0x25/0x180 kernel/sched/wait.c:54
 ep_remove_wait_queue+0x85/0x1d0 fs/eventpoll.c:679
 ep_unregister_pollwait fs/eventpoll.c:694 [inline]
 ep_clear_and_put+0x186/0x440 fs/eventpoll.c:860
 ep_eventpoll_release+0x3e/0x60 fs/eventpoll.c:912
 __fput+0x3ff/0xb70 fs/file_table.c:465
 task_work_run+0x150/0x240 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xeb/0x110 kernel/entry/common.c:114
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9c4178e929
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:00007ffc2710a9d8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 0000000000011d79 RCX: 00007f9c4178e929
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 000000042710accf
R10: 00007f9c41600000 R11: 0000000000000246 R12: 00007f9c419b5fac
R13: 00007f9c419b5fa0 R14: ffffffffffffffff R15: 0000000000000003
 </TASK>

Allocated by task 1:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kmalloc_noprof include/linux/slab.h:905 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 __comedi_device_postconfig_async drivers/comedi/drivers.c:664 [inline]
 __comedi_device_postconfig drivers/comedi/drivers.c:721 [inline]
 comedi_device_postconfig+0x2cb/0xc80 drivers/comedi/drivers.c:756
 comedi_auto_config+0x1a3/0x440 drivers/comedi/drivers.c:1069
 comedi_test_init+0xd0/0x160 drivers/comedi/drivers/comedi_test.c:836
 do_one_initcall+0x120/0x6e0 init/main.c:1274
 do_initcall_level init/main.c:1336 [inline]
 do_initcalls init/main.c:1352 [inline]
 do_basic_setup init/main.c:1371 [inline]
 kernel_init_freeable+0x5c2/0x900 init/main.c:1584
 kernel_init+0x1c/0x2b0 init/main.c:1474
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 6011:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2381 [inline]
 slab_free mm/slub.c:4643 [inline]
 kfree+0x2b4/0x4d0 mm/slub.c:4842
 comedi_device_detach_cleanup drivers/comedi/drivers.c:171 [inline]
 comedi_device_detach+0x2a4/0x9e0 drivers/comedi/drivers.c:208
 do_devconfig_ioctl+0x46c/0x580 drivers/comedi/comedi_fops.c:833
 comedi_unlocked_ioctl+0x15bb/0x2e90 drivers/comedi/comedi_fops.c:2136
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl fs/ioctl.c:893 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88814bc72400
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 176 bytes inside of
 freed 256-byte region [ffff88814bc72400, ffff88814bc72500)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14bc72
head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x57ff00000000040(head|node=1|zone=2|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 057ff00000000040 ffff88801b841b40 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 057ff00000000040 ffff88801b841b40 dead000000000122 0000000000000000
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 057ff00000000001 ffffea00052f1c81 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 12326187951, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2419
 alloc_slab_page mm/slub.c:2451 [inline]
 allocate_slab mm/slub.c:2619 [inline]
 new_slab+0x23b/0x330 mm/slub.c:2673
 ___slab_alloc+0xd9c/0x1940 mm/slub.c:3859
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3949
 __slab_alloc_node mm/slub.c:4024 [inline]
 slab_alloc_node mm/slub.c:4185 [inline]
 __do_kmalloc_node mm/slub.c:4327 [inline]
 __kmalloc_noprof+0x2f2/0x510 mm/slub.c:4340
 kmalloc_noprof include/linux/slab.h:909 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 comedi_alloc_devpriv+0x22/0x60 drivers/comedi/drivers.c:79
 waveform_common_attach+0x27/0x940 drivers/comedi/drivers/comedi_test.c:703
 comedi_auto_config+0x179/0x440 drivers/comedi/drivers.c:1067
 comedi_test_init+0xd0/0x160 drivers/comedi/drivers/comedi_test.c:836
 do_one_initcall+0x120/0x6e0 init/main.c:1274
 do_initcall_level init/main.c:1336 [inline]
 do_initcalls init/main.c:1352 [inline]
 do_basic_setup init/main.c:1371 [inline]
 kernel_init_freeable+0x5c2/0x900 init/main.c:1584
 kernel_init+0x1c/0x2b0 init/main.c:1474
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88814bc72380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88814bc72400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88814bc72480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                     ^
 ffff88814bc72500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88814bc72580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
BUG: KASAN: slab-use-after-free in _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
Read of size 1 at addr ffff88814bc724b0 by task syz.0.16/6011

CPU: 0 UID: 0 PID: 6011 Comm: syz.0.16 Not tainted 6.16.0-rc4-syzkaller-00319-g05df91921da6 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xcd/0x680 mm/kasan/report.c:521
 kasan_report+0xe0/0x110 mm/kasan/report.c:634
 __kasan_check_byte+0x36/0x50 mm/kasan/common.c:557
 kasan_check_byte include/linux/kasan.h:399 [inline]
 lock_acquire kernel/locking/lockdep.c:5845 [inline]
 lock_acquire+0xfc/0x350 kernel/locking/lockdep.c:5828
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
 remove_wait_queue+0x25/0x180 kernel/sched/wait.c:54
 ep_remove_wait_queue+0x85/0x1d0 fs/eventpoll.c:679
 ep_unregister_pollwait fs/eventpoll.c:694 [inline]
 ep_clear_and_put+0x186/0x440 fs/eventpoll.c:860
 ep_eventpoll_release+0x3e/0x60 fs/eventpoll.c:912
 __fput+0x3ff/0xb70 fs/file_table.c:465
 task_work_run+0x150/0x240 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xeb/0x110 kernel/entry/common.c:114
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9c4178e929
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:00007ffc2710a9d8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 0000000000011d79 RCX: 00007f9c4178e929
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 000000042710accf
R10: 00007f9c41600000 R11: 0000000000000246 R12: 00007f9c419b5fac
R13: 00007f9c419b5fa0 R14: ffffffffffffffff R15: 0000000000000003
 </TASK>

Allocated by task 1:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kmalloc_noprof include/linux/slab.h:905 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 __comedi_device_postconfig_async drivers/comedi/drivers.c:664 [inline]
 __comedi_device_postconfig drivers/comedi/drivers.c:721 [inline]
 comedi_device_postconfig+0x2cb/0xc80 drivers/comedi/drivers.c:756
 comedi_auto_config+0x1a3/0x440 drivers/comedi/drivers.c:1069
 comedi_test_init+0xd0/0x160 drivers/comedi/drivers/comedi_test.c:836
 do_one_initcall+0x120/0x6e0 init/main.c:1274
 do_initcall_level init/main.c:1336 [inline]
 do_initcalls init/main.c:1352 [inline]
 do_basic_setup init/main.c:1371 [inline]
 kernel_init_freeable+0x5c2/0x900 init/main.c:1584
 kernel_init+0x1c/0x2b0 init/main.c:1474
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 6011:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2381 [inline]
 slab_free mm/slub.c:4643 [inline]
 kfree+0x2b4/0x4d0 mm/slub.c:4842
 comedi_device_detach_cleanup drivers/comedi/drivers.c:171 [inline]
 comedi_device_detach+0x2a4/0x9e0 drivers/comedi/drivers.c:208
 do_devconfig_ioctl+0x46c/0x580 drivers/comedi/comedi_fops.c:833
 comedi_unlocked_ioctl+0x15bb/0x2e90 drivers/comedi/comedi_fops.c:2136
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl fs/ioctl.c:893 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88814bc72400
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 176 bytes inside of
 freed 256-byte region [ffff88814bc72400, ffff88814bc72500)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14bc72
head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x57ff00000000040(head|node=1|zone=2|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 057ff00000000040 ffff88801b841b40 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 057ff00000000040 ffff88801b841b40 dead000000000122 0000000000000000
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 057ff00000000001 ffffea00052f1c81 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 12326187951, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2419
 alloc_slab_page mm/slub.c:2451 [inline]
 allocate_slab mm/slub.c:2619 [inline]
 new_slab+0x23b/0x330 mm/slub.c:2673
 ___slab_alloc+0xd9c/0x1940 mm/slub.c:3859
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3949
 __slab_alloc_node mm/slub.c:4024 [inline]
 slab_alloc_node mm/slub.c:4185 [inline]
 __do_kmalloc_node mm/slub.c:4327 [inline]
 __kmalloc_noprof+0x2f2/0x510 mm/slub.c:4340
 kmalloc_noprof include/linux/slab.h:909 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 comedi_alloc_devpriv+0x22/0x60 drivers/comedi/drivers.c:79
 waveform_common_attach+0x27/0x940 drivers/comedi/drivers/comedi_test.c:703
 comedi_auto_config+0x179/0x440 drivers/comedi/drivers.c:1067
 comedi_test_init+0xd0/0x160 drivers/comedi/drivers/comedi_test.c:836
 do_one_initcall+0x120/0x6e0 init/main.c:1274
 do_initcall_level init/main.c:1336 [inline]
 do_initcalls init/main.c:1352 [inline]
 do_basic_setup init/main.c:1371 [inline]
 kernel_init_freeable+0x5c2/0x900 init/main.c:1584
 kernel_init+0x1c/0x2b0 init/main.c:1474
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88814bc72380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88814bc72400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88814bc72480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                     ^
 ffff88814bc72500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88814bc72580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================