Extracting prog: 3m10.614619679s
Minimizing prog: 1h23m30.307813745s
Simplifying prog options: 13m32.578719369s
Extracting C: 6m23.68019363s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs: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}}): prlimit64-sched_setscheduler-sched_setaffinity-openat$cgroup_ro-write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x100000000000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
sched_setaffinity(0x0, 0x0, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='net_prio.prioidx\x00', 0x275a, 0x0)
write$binfmt_script(r0, &(0x7f0000000180), 0x208e24b)
r1 = syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r2 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r2, 0x8933, &(0x7f00000003c0)={'wlan1\x00', <r3=>0x0})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000000)={0x2c, r1, 0x1, 0x0, 0x0, {{}, {@val={0x8, 0x3, r3}, @void}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x994}], @NL80211_ATTR_CH_SWITCH_COUNT={0x8, 0xb7, 0x78}]}, 0x2c}}, 0x40880)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {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}}): prlimit64-sched_setscheduler-sched_setaffinity-openat$cgroup_ro-write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x100000000000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
sched_setaffinity(0x0, 0x0, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='net_prio.prioidx\x00', 0x275a, 0x0)
write$binfmt_script(r0, &(0x7f0000000180), 0x208e24b)
r1 = syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r2 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r2, 0x8933, &(0x7f00000003c0)={'wlan1\x00', <r3=>0x0})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000000)={0x2c, r1, 0x1, 0x0, 0x0, {{}, {@val={0x8, 0x3, r3}, @void}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x994}], @NL80211_ATTR_CH_SWITCH_COUNT={0x8, 0xb7, 0x78}]}, 0x2c}}, 0x40880)

program crashed: WARNING in __ieee80211_beacon_get
single: successfully extracted reproducer
found reproducer with 9 syscalls
minimizing guilty program
testing program (duration=6m0s, {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}}): prlimit64-sched_setscheduler-sched_setaffinity-openat$cgroup_ro-write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x100000000000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
sched_setaffinity(0x0, 0x0, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='net_prio.prioidx\x00', 0x275a, 0x0)
write$binfmt_script(r0, &(0x7f0000000180), 0x208e24b)
syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r1 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f00000003c0)={'wlan1\x00'})

program did not crash
testing program (duration=6m0s, {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}}): prlimit64-sched_setscheduler-sched_setaffinity-openat$cgroup_ro-write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x100000000000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
sched_setaffinity(0x0, 0x0, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='net_prio.prioidx\x00', 0x275a, 0x0)
write$binfmt_script(r0, &(0x7f0000000180), 0x208e24b)
r1 = syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r2 = socket$nl_generic(0x10, 0x3, 0x10)
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000000)={0x2c, r1, 0x1, 0x0, 0x0, {{}, {@val={0x8}, @void}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x994}], @NL80211_ATTR_CH_SWITCH_COUNT={0x8, 0xb7, 0x78}]}, 0x2c}}, 0x40880)

program did not crash
testing program (duration=6m0s, {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}}): prlimit64-sched_setscheduler-sched_setaffinity-openat$cgroup_ro-write$binfmt_script-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x100000000000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
sched_setaffinity(0x0, 0x0, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='net_prio.prioidx\x00', 0x275a, 0x0)
write$binfmt_script(r0, &(0x7f0000000180), 0x208e24b)
r1 = syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f00000003c0)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000000)={0x2c, r1, 0x1, 0x0, 0x0, {{}, {@val={0x8, 0x3, r2}, @void}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x994}], @NL80211_ATTR_CH_SWITCH_COUNT={0x8, 0xb7, 0x78}]}, 0x2c}}, 0x40880)

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
testing program (duration=6m0s, {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}}): prlimit64-sched_setscheduler-sched_setaffinity-openat$cgroup_ro-write$binfmt_script-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x100000000000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
sched_setaffinity(0x0, 0x0, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='net_prio.prioidx\x00', 0x275a, 0x0)
write$binfmt_script(r0, &(0x7f0000000180), 0x208e24b)
r1 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f00000003c0)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000000)={0x2c, 0x0, 0x1, 0x0, 0x0, {{}, {@val={0x8, 0x3, r2}, @void}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x994}], @NL80211_ATTR_CH_SWITCH_COUNT={0x8, 0xb7, 0x78}]}, 0x2c}}, 0x40880)

program did not crash
testing program (duration=6m0s, {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}}): prlimit64-sched_setscheduler-sched_setaffinity-openat$cgroup_ro-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x100000000000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
sched_setaffinity(0x0, 0x0, 0x0)
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='net_prio.prioidx\x00', 0x275a, 0x0)
r0 = syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r1 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f00000003c0)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000000)={0x2c, r0, 0x1, 0x0, 0x0, {{}, {@val={0x8, 0x3, r2}, @void}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x994}], @NL80211_ATTR_CH_SWITCH_COUNT={0x8, 0xb7, 0x78}]}, 0x2c}}, 0x40880)

program did not crash
testing program (duration=6m0s, {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}}): prlimit64-sched_setscheduler-sched_setaffinity-write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x100000000000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
sched_setaffinity(0x0, 0x0, 0x0)
write$binfmt_script(0xffffffffffffffff, &(0x7f0000000180), 0x208e24b)
r0 = syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r1 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f00000003c0)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000000)={0x2c, r0, 0x1, 0x0, 0x0, {{}, {@val={0x8, 0x3, r2}, @void}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x994}], @NL80211_ATTR_CH_SWITCH_COUNT={0x8, 0xb7, 0x78}]}, 0x2c}}, 0x40880)

program crashed: WARNING in __ieee80211_beacon_get
testing program (duration=6m0s, {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}}): prlimit64-sched_setscheduler-write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x100000000000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
write$binfmt_script(0xffffffffffffffff, &(0x7f0000000180), 0x208e24b)
r0 = syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r1 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f00000003c0)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000000)={0x2c, r0, 0x1, 0x0, 0x0, {{}, {@val={0x8, 0x3, r2}, @void}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x994}], @NL80211_ATTR_CH_SWITCH_COUNT={0x8, 0xb7, 0x78}]}, 0x2c}}, 0x40880)

program crashed: WARNING in __ieee80211_beacon_get
testing program (duration=6m0s, {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}}): prlimit64-write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x100000000000008b}, 0x0)
write$binfmt_script(0xffffffffffffffff, &(0x7f0000000180), 0x208e24b)
r0 = syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r1 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f00000003c0)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000000)={0x2c, r0, 0x1, 0x0, 0x0, {{}, {@val={0x8, 0x3, r2}, @void}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x994}], @NL80211_ATTR_CH_SWITCH_COUNT={0x8, 0xb7, 0x78}]}, 0x2c}}, 0x40880)

program crashed: WARNING in __ieee80211_beacon_get
testing program (duration=6m0s, {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}}): write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
write$binfmt_script(0xffffffffffffffff, &(0x7f0000000180), 0x208e24b)
r0 = syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r1 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f00000003c0)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000000)={0x2c, r0, 0x1, 0x0, 0x0, {{}, {@val={0x8, 0x3, r2}, @void}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x994}], @NL80211_ATTR_CH_SWITCH_COUNT={0x8, 0xb7, 0x78}]}, 0x2c}}, 0x40880)

program crashed: WARNING in __ieee80211_beacon_get
testing program (duration=6m0s, {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}}): write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
write$binfmt_script(0xffffffffffffffff, 0x0, 0x0)
r0 = syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r1 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f00000003c0)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000000)={0x2c, r0, 0x1, 0x0, 0x0, {{}, {@val={0x8, 0x3, r2}, @void}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x994}], @NL80211_ATTR_CH_SWITCH_COUNT={0x8, 0xb7, 0x78}]}, 0x2c}}, 0x40880)

program did not crash
testing program (duration=6m0s, {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}}): write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
write$binfmt_script(0xffffffffffffffff, &(0x7f0000000180), 0x208e24b)
r0 = syz_genetlink_get_family_id$nl80211(0x0, 0xffffffffffffffff)
r1 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f00000003c0)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000000)={0x2c, r0, 0x1, 0x0, 0x0, {{}, {@val={0x8, 0x3, r2}, @void}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x994}], @NL80211_ATTR_CH_SWITCH_COUNT={0x8, 0xb7, 0x78}]}, 0x2c}}, 0x40880)

program did not crash
testing program (duration=6m0s, {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}}): write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
write$binfmt_script(0xffffffffffffffff, &(0x7f0000000180), 0x208e24b)
r0 = syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r1 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, 0x0)
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000000)={0x2c, r0, 0x1, 0x0, 0x0, {{}, {@val={0x8}, @void}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x994}], @NL80211_ATTR_CH_SWITCH_COUNT={0x8, 0xb7, 0x78}]}, 0x2c}}, 0x40880)

program did not crash
testing program (duration=6m0s, {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}}): write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
write$binfmt_script(0xffffffffffffffff, &(0x7f0000000180), 0x208e24b)
syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r0 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r0, 0x8933, &(0x7f00000003c0)={'wlan1\x00'})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r0, 0x0, 0x40880)

program did not crash
testing program (duration=6m0s, {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}}): write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
write$binfmt_script(0xffffffffffffffff, &(0x7f0000000180), 0x208e24b)
syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r0 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r0, 0x8933, &(0x7f00000003c0)={'wlan1\x00'})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r0, &(0x7f0000000200)={0x0, 0x0, 0x0}, 0x40880)

program did not crash
testing program (duration=6m0s, {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}}): write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
write$binfmt_script(0xffffffffffffffff, &(0x7f0000000180), 0x208e24b)
syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r0 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r0, 0x8933, &(0x7f00000003c0)={'wlan1\x00'})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={0x0}}, 0x40880)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {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}}): write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
write$binfmt_script(0xffffffffffffffff, &(0x7f0000000180), 0x208e24b)
r0 = syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r1 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f00000003c0)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000000)={0x2c, r0, 0x1, 0x0, 0x0, {{}, {@val={0x8, 0x3, r2}, @void}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x994}], @NL80211_ATTR_CH_SWITCH_COUNT={0x8, 0xb7, 0x78}]}, 0x2c}}, 0x40880)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): write$binfmt_script-syz_genetlink_get_family_id$nl80211-socket$nl_generic-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_CHANNEL_SWITCH
detailed listing:
executing program 0:
write$binfmt_script(0xffffffffffffffff, &(0x7f0000000180), 0x208e24b)
r0 = syz_genetlink_get_family_id$nl80211(&(0x7f00000014c0), 0xffffffffffffffff)
r1 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f00000003c0)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_CHANNEL_SWITCH(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000000)={0x2c, r0, 0x1, 0x0, 0x0, {{}, {@val={0x8, 0x3, r2}, @void}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x994}], @NL80211_ATTR_CH_SWITCH_COUNT={0x8, 0xb7, 0x78}]}, 0x2c}}, 0x40880)

program did not crash
reproducing took 1h46m37.181363745s
repro crashed as (corrupted=false):
------------[ cut here ]------------
WARNING: CPU: 0 PID: 6002 at net/mac80211/tx.c:5040 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline]
WARNING: CPU: 0 PID: 6002 at net/mac80211/tx.c:5040 __ieee80211_beacon_get+0x1202/0x15c0 net/mac80211/tx.c:5469
Modules linked in:
CPU: 0 UID: 0 PID: 6002 Comm: kworker/0:5 Not tainted 6.13.0-rc2-syzkaller-00031-gf92f4749861b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events drain_vmap_area_work
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1202/0x15c0 net/mac80211/tx.c:5469
Code: e8 c3 64 64 f6 eb 0d e8 bc 64 64 f6 4c 8b bc 24 98 00 00 00 4c 89 ef e8 4c 9d bc f6 45 31 ed e9 4c fe ff ff e8 9f 64 64 f6 90 <0f> 0b 90 e9 00 f7 ff ff e8 91 64 64 f6 90 0f 0b 90 e9 e8 f8 ff ff
RSP: 0018:ffffc900000079e0 EFLAGS: 00010246
RAX: ffffffff8b3af951 RBX: 0000000000000000 RCX: ffff8880439e1e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff8b3af04d R09: ffffffff8b3aea50
R10: 0000000000000003 R11: ffff8880439e1e00 R12: ffff88801195a508
R13: ffff888026ff0400 R14: ffff88801195a9d8 R15: ffff888011958d80
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6a71917838 CR3: 0000000032cda000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xb4/0x320 net/mac80211/tx.c:5596
 ieee80211_beacon_get include/net/mac80211.h:5632 [inline]
 mac80211_hwsim_beacon_tx+0x39d/0x850 drivers/net/wireless/virtual/mac80211_hwsim.c:2311
 __iterate_interfaces+0x297/0x570 net/mac80211/util.c:775
 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:811
 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2345
 __run_hrtimer kernel/time/hrtimer.c:1739 [inline]
 __hrtimer_run_queues+0x59b/0xd30 kernel/time/hrtimer.c:1803
 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1820
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 __do_softirq kernel/softirq.c:595 [inline]
 invoke_softirq kernel/softirq.c:435 [inline]
 __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:purge_vmap_node+0x3c5/0x8d0 mm/vmalloc.c:2219
Code: 8b 4c 24 18 48 8d 59 18 48 89 d8 48 c1 e8 03 4c 2b 79 d8 4c 89 7c 24 48 4d 89 f5 42 80 3c 30 00 74 08 48 89 df e8 2b 6e 10 00 <44> 8b 23 45 89 e7 41 c1 ef 08 41 ff cf 8b 1d 5c 7e 25 0e 44 89 ff
RSP: 0018:ffffc900040bf9e0 EFLAGS: 00000246
RAX: 1ffff1100689867d RBX: ffff8880344c33e8 RCX: ffff8880344c33d0
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffffc900040bfb20 R08: ffff88801ac6315b R09: 1ffff1100358c62b
R10: dffffc0000000000 R11: ffffed100358c62c R12: ffff8880344c3438
R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000002000
 __purge_vmap_area_lazy+0x708/0xae0 mm/vmalloc.c:2304
 drain_vmap_area_work+0x27/0x40 mm/vmalloc.c:2338
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
----------------
Code disassembly (best guess):
   0:	8b 4c 24 18          	mov    0x18(%rsp),%ecx
   4:	48 8d 59 18          	lea    0x18(%rcx),%rbx
   8:	48 89 d8             	mov    %rbx,%rax
   b:	48 c1 e8 03          	shr    $0x3,%rax
   f:	4c 2b 79 d8          	sub    -0x28(%rcx),%r15
  13:	4c 89 7c 24 48       	mov    %r15,0x48(%rsp)
  18:	4d 89 f5             	mov    %r14,%r13
  1b:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1)
  20:	74 08                	je     0x2a
  22:	48 89 df             	mov    %rbx,%rdi
  25:	e8 2b 6e 10 00       	call   0x106e55
* 2a:	44 8b 23             	mov    (%rbx),%r12d <-- trapping instruction
  2d:	45 89 e7             	mov    %r12d,%r15d
  30:	41 c1 ef 08          	shr    $0x8,%r15d
  34:	41 ff cf             	dec    %r15d
  37:	8b 1d 5c 7e 25 0e    	mov    0xe257e5c(%rip),%ebx        # 0xe257e99
  3d:	44 89 ff             	mov    %r15d,%edi

final repro crashed as (corrupted=false):
------------[ cut here ]------------
WARNING: CPU: 0 PID: 6002 at net/mac80211/tx.c:5040 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline]
WARNING: CPU: 0 PID: 6002 at net/mac80211/tx.c:5040 __ieee80211_beacon_get+0x1202/0x15c0 net/mac80211/tx.c:5469
Modules linked in:
CPU: 0 UID: 0 PID: 6002 Comm: kworker/0:5 Not tainted 6.13.0-rc2-syzkaller-00031-gf92f4749861b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events drain_vmap_area_work
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1202/0x15c0 net/mac80211/tx.c:5469
Code: e8 c3 64 64 f6 eb 0d e8 bc 64 64 f6 4c 8b bc 24 98 00 00 00 4c 89 ef e8 4c 9d bc f6 45 31 ed e9 4c fe ff ff e8 9f 64 64 f6 90 <0f> 0b 90 e9 00 f7 ff ff e8 91 64 64 f6 90 0f 0b 90 e9 e8 f8 ff ff
RSP: 0018:ffffc900000079e0 EFLAGS: 00010246
RAX: ffffffff8b3af951 RBX: 0000000000000000 RCX: ffff8880439e1e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff8b3af04d R09: ffffffff8b3aea50
R10: 0000000000000003 R11: ffff8880439e1e00 R12: ffff88801195a508
R13: ffff888026ff0400 R14: ffff88801195a9d8 R15: ffff888011958d80
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6a71917838 CR3: 0000000032cda000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xb4/0x320 net/mac80211/tx.c:5596
 ieee80211_beacon_get include/net/mac80211.h:5632 [inline]
 mac80211_hwsim_beacon_tx+0x39d/0x850 drivers/net/wireless/virtual/mac80211_hwsim.c:2311
 __iterate_interfaces+0x297/0x570 net/mac80211/util.c:775
 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:811
 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2345
 __run_hrtimer kernel/time/hrtimer.c:1739 [inline]
 __hrtimer_run_queues+0x59b/0xd30 kernel/time/hrtimer.c:1803
 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1820
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 __do_softirq kernel/softirq.c:595 [inline]
 invoke_softirq kernel/softirq.c:435 [inline]
 __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:purge_vmap_node+0x3c5/0x8d0 mm/vmalloc.c:2219
Code: 8b 4c 24 18 48 8d 59 18 48 89 d8 48 c1 e8 03 4c 2b 79 d8 4c 89 7c 24 48 4d 89 f5 42 80 3c 30 00 74 08 48 89 df e8 2b 6e 10 00 <44> 8b 23 45 89 e7 41 c1 ef 08 41 ff cf 8b 1d 5c 7e 25 0e 44 89 ff
RSP: 0018:ffffc900040bf9e0 EFLAGS: 00000246
RAX: 1ffff1100689867d RBX: ffff8880344c33e8 RCX: ffff8880344c33d0
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffffc900040bfb20 R08: ffff88801ac6315b R09: 1ffff1100358c62b
R10: dffffc0000000000 R11: ffffed100358c62c R12: ffff8880344c3438
R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000002000
 __purge_vmap_area_lazy+0x708/0xae0 mm/vmalloc.c:2304
 drain_vmap_area_work+0x27/0x40 mm/vmalloc.c:2338
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
----------------
Code disassembly (best guess):
   0:	8b 4c 24 18          	mov    0x18(%rsp),%ecx
   4:	48 8d 59 18          	lea    0x18(%rcx),%rbx
   8:	48 89 d8             	mov    %rbx,%rax
   b:	48 c1 e8 03          	shr    $0x3,%rax
   f:	4c 2b 79 d8          	sub    -0x28(%rcx),%r15
  13:	4c 89 7c 24 48       	mov    %r15,0x48(%rsp)
  18:	4d 89 f5             	mov    %r14,%r13
  1b:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1)
  20:	74 08                	je     0x2a
  22:	48 89 df             	mov    %rbx,%rdi
  25:	e8 2b 6e 10 00       	call   0x106e55
* 2a:	44 8b 23             	mov    (%rbx),%r12d <-- trapping instruction
  2d:	45 89 e7             	mov    %r12d,%r15d
  30:	41 c1 ef 08          	shr    $0x8,%r15d
  34:	41 ff cf             	dec    %r15d
  37:	8b 1d 5c 7e 25 0e    	mov    0xe257e5c(%rip),%ebx        # 0xe257e99
  3d:	44 89 ff             	mov    %r15d,%edi