Extracting prog: 2m27.290442092s
Minimizing prog: 17m16.771474245s
Simplifying prog options: 0s
Extracting C: 53.452139682s
Simplifying C: 8m39.738846645s


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}}): syz_open_procfs-fchdir-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='task\x00')
fchdir(r0)
mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f00000001c0)='proc\x00', 0x801, 0x0)
r1 = syz_clone(0x0, 0x0, 0x36, 0x0, 0x0, 0x0)
r2 = syz_open_procfs$pagemap(r1, &(0x7f0000000680))
ioctl$PAGEMAP_SCAN(r2, 0xc0606610, &(0x7f0000000100)={0x60, 0x0, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000fff000/0x1000)=nil, 0x100000000, 0x0, 0x0, 0x8000000000000000, 0x15, 0x4, 0x8, 0x48})

program crashed: general protection fault in do_pagemap_cmd
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=1m16.665004531s, {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}}): syz_open_procfs-fchdir-mount-syz_clone-syz_open_procfs$pagemap
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='task\x00')
fchdir(r0)
mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f00000001c0)='proc\x00', 0x801, 0x0)
r1 = syz_clone(0x0, 0x0, 0x36, 0x0, 0x0, 0x0)
syz_open_procfs$pagemap(r1, &(0x7f0000000680))

program did not crash
testing program (duration=1m16.665004531s, {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}}): syz_open_procfs-fchdir-mount-syz_clone-ioctl$PAGEMAP_SCAN
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='task\x00')
fchdir(r0)
mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f00000001c0)='proc\x00', 0x801, 0x0)
syz_clone(0x0, 0x0, 0x36, 0x0, 0x0, 0x0)
ioctl$PAGEMAP_SCAN(0xffffffffffffffff, 0xc0606610, &(0x7f0000000100)={0x60, 0x0, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000fff000/0x1000)=nil, 0x100000000, 0x0, 0x0, 0x8000000000000000, 0x15, 0x4, 0x8, 0x48})

program did not crash
testing program (duration=1m16.665004531s, {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}}): syz_open_procfs-fchdir-mount-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='task\x00')
fchdir(r0)
mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f00000001c0)='proc\x00', 0x801, 0x0)
r1 = syz_open_procfs$pagemap(0x0, &(0x7f0000000680))
ioctl$PAGEMAP_SCAN(r1, 0xc0606610, &(0x7f0000000100)={0x60, 0x0, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000fff000/0x1000)=nil, 0x100000000, 0x0, 0x0, 0x8000000000000000, 0x15, 0x4, 0x8, 0x48})

program did not crash
testing program (duration=1m16.665004531s, {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}}): syz_open_procfs-fchdir-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='task\x00')
fchdir(r0)
r1 = syz_clone(0x0, 0x0, 0x36, 0x0, 0x0, 0x0)
r2 = syz_open_procfs$pagemap(r1, &(0x7f0000000680))
ioctl$PAGEMAP_SCAN(r2, 0xc0606610, &(0x7f0000000100)={0x60, 0x0, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000fff000/0x1000)=nil, 0x100000000, 0x0, 0x0, 0x8000000000000000, 0x15, 0x4, 0x8, 0x48})

program did not crash
testing program (duration=1m16.665004531s, {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}}): syz_open_procfs-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
detailed listing:
executing program 0:
syz_open_procfs(0x0, &(0x7f00000000c0)='task\x00')
mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f00000001c0)='proc\x00', 0x801, 0x0)
r0 = syz_clone(0x0, 0x0, 0x36, 0x0, 0x0, 0x0)
r1 = syz_open_procfs$pagemap(r0, &(0x7f0000000680))
ioctl$PAGEMAP_SCAN(r1, 0xc0606610, &(0x7f0000000100)={0x60, 0x0, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000fff000/0x1000)=nil, 0x100000000, 0x0, 0x0, 0x8000000000000000, 0x15, 0x4, 0x8, 0x48})

program did not crash
testing program (duration=1m16.665004531s, {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}}): fchdir-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
detailed listing:
executing program 0:
fchdir(0xffffffffffffffff)
mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f00000001c0)='proc\x00', 0x801, 0x0)
r0 = syz_clone(0x0, 0x0, 0x36, 0x0, 0x0, 0x0)
r1 = syz_open_procfs$pagemap(r0, &(0x7f0000000680))
ioctl$PAGEMAP_SCAN(r1, 0xc0606610, &(0x7f0000000100)={0x60, 0x0, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000fff000/0x1000)=nil, 0x100000000, 0x0, 0x0, 0x8000000000000000, 0x15, 0x4, 0x8, 0x48})

program did not crash
testing program (duration=1m16.665004531s, {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}}): syz_open_procfs-fchdir-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, 0x0)
fchdir(r0)
mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f00000001c0)='proc\x00', 0x801, 0x0)
r1 = syz_clone(0x0, 0x0, 0x36, 0x0, 0x0, 0x0)
r2 = syz_open_procfs$pagemap(r1, &(0x7f0000000680))
ioctl$PAGEMAP_SCAN(r2, 0xc0606610, &(0x7f0000000100)={0x60, 0x0, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000fff000/0x1000)=nil, 0x100000000, 0x0, 0x0, 0x8000000000000000, 0x15, 0x4, 0x8, 0x48})

program did not crash
testing program (duration=1m16.665004531s, {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}}): syz_open_procfs-fchdir-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='task\x00')
fchdir(r0)
mount(0x0, 0x0, &(0x7f00000001c0)='proc\x00', 0x801, 0x0)
r1 = syz_clone(0x0, 0x0, 0x36, 0x0, 0x0, 0x0)
r2 = syz_open_procfs$pagemap(r1, &(0x7f0000000680))
ioctl$PAGEMAP_SCAN(r2, 0xc0606610, &(0x7f0000000100)={0x60, 0x0, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000fff000/0x1000)=nil, 0x100000000, 0x0, 0x0, 0x8000000000000000, 0x15, 0x4, 0x8, 0x48})

program did not crash
testing program (duration=1m16.665004531s, {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}}): syz_open_procfs-fchdir-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='task\x00')
fchdir(r0)
mount(0x0, &(0x7f0000000080)='.\x00', 0x0, 0x801, 0x0)
r1 = syz_clone(0x0, 0x0, 0x36, 0x0, 0x0, 0x0)
r2 = syz_open_procfs$pagemap(r1, &(0x7f0000000680))
ioctl$PAGEMAP_SCAN(r2, 0xc0606610, &(0x7f0000000100)={0x60, 0x0, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000fff000/0x1000)=nil, 0x100000000, 0x0, 0x0, 0x8000000000000000, 0x15, 0x4, 0x8, 0x48})

program did not crash
testing program (duration=1m16.665004531s, {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}}): syz_open_procfs-fchdir-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='task\x00')
fchdir(r0)
mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f00000001c0)='proc\x00', 0x801, 0x0)
r1 = syz_clone(0x0, 0x0, 0x36, 0x0, 0x0, 0x0)
r2 = syz_open_procfs$pagemap(r1, 0x0)
ioctl$PAGEMAP_SCAN(r2, 0xc0606610, &(0x7f0000000100)={0x60, 0x0, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000fff000/0x1000)=nil, 0x100000000, 0x0, 0x0, 0x8000000000000000, 0x15, 0x4, 0x8, 0x48})

program did not crash
testing program (duration=1m16.665004531s, {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}}): syz_open_procfs-fchdir-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='task\x00')
fchdir(r0)
mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f00000001c0)='proc\x00', 0x801, 0x0)
r1 = syz_clone(0x0, 0x0, 0x36, 0x0, 0x0, 0x0)
r2 = syz_open_procfs$pagemap(r1, &(0x7f0000000680))
ioctl$PAGEMAP_SCAN(r2, 0xc0606610, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=1m16.665004531s, {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}}): syz_open_procfs-fchdir-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
program crashed: general protection fault in do_pagemap_cmd
simplifying C reproducer
testing compiled C program (duration=1m16.665004531s, {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}}): syz_open_procfs-fchdir-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
program crashed: general protection fault in do_pagemap_cmd
testing compiled C program (duration=1m16.665004531s, {Threaded:false 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}}): syz_open_procfs-fchdir-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
program crashed: general protection fault in do_pagemap_cmd
testing compiled C program (duration=1m16.665004531s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-fchdir-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
program crashed: general protection fault in do_pagemap_cmd
testing compiled C program (duration=1m16.665004531s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-fchdir-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
program crashed: general protection fault in do_pagemap_cmd
testing compiled C program (duration=1m16.665004531s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-fchdir-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
program crashed: general protection fault in do_pagemap_cmd
testing compiled C program (duration=1m16.665004531s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-fchdir-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
program crashed: general protection fault in do_pagemap_cmd
testing compiled C program (duration=1m16.665004531s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-fchdir-mount-syz_clone-syz_open_procfs$pagemap-ioctl$PAGEMAP_SCAN
program crashed: general protection fault in do_pagemap_cmd
reproducing took 29m17.253009497s
repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc000000003c: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000001e0-0x00000000000001e7]
CPU: 1 UID: 0 PID: 5836 Comm: syz-executor181 Not tainted 6.14.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__lock_acquire+0x6a/0x2100 kernel/locking/lockdep.c:5091
Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d 6b 27 9f 0e 00 0f 84 c8 13 00 00 89 54 24 60 89 5c 24 38 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 98 c4 89 00 48 be 00 00 00 00 00 fc
RSP: 0018:ffffc90003997850 EFLAGS: 00010006
RAX: 000000000000003c RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00000000000001e0
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff20779af R12: ffff888032430000
R13: 0000000000000000 R14: 0000000000000000 R15: 00000000000001e0
FS:  0000555579f20380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555579f20338 CR3: 0000000055d3c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
 down_read_killable+0xca/0xd30 kernel/locking/rwsem.c:1547
 mmap_read_lock_killable include/linux/mmap_lock.h:199 [inline]
 do_pagemap_scan fs/proc/task_mmu.c:2766 [inline]
 do_pagemap_cmd+0x82e/0x1240 fs/proc/task_mmu.c:2819
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9860fe1c39
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd73b62488 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9860fe1c39
RDX: 0000400000000100 RSI: 00000000c0606610 RDI: 0000000000000004
RBP: 0000000000010403 R08: 00007ffd73b62134 R09: 0000000000000006
R10: 0000000000000014 R11: 0000000000000246 R12: 00007ffd73b6249c
R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0x6a/0x2100 kernel/locking/lockdep.c:5091
Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d 6b 27 9f 0e 00 0f 84 c8 13 00 00 89 54 24 60 89 5c 24 38 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 98 c4 89 00 48 be 00 00 00 00 00 fc
RSP: 0018:ffffc90003997850 EFLAGS: 00010006
RAX: 000000000000003c RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00000000000001e0
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff20779af R12: ffff888032430000
R13: 0000000000000000 R14: 0000000000000000 R15: 00000000000001e0
FS:  0000555579f20380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555579f20338 CR3: 0000000055d3c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	b6 04                	mov    $0x4,%dh
   2:	30 84 c0 0f 85 f8 16 	xor    %al,0x16f8850f(%rax,%rax,8)
   9:	00 00                	add    %al,(%rax)
   b:	45 31 f6             	xor    %r14d,%r14d
   e:	83 3d 6b 27 9f 0e 00 	cmpl   $0x0,0xe9f276b(%rip)        # 0xe9f2780
  15:	0f 84 c8 13 00 00    	je     0x13e3
  1b:	89 54 24 60          	mov    %edx,0x60(%rsp)
  1f:	89 5c 24 38          	mov    %ebx,0x38(%rsp)
  23:	4c 89 f8             	mov    %r15,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 30 00          	cmpb   $0x0,(%rax,%rsi,1) <-- trapping instruction
  2e:	74 12                	je     0x42
  30:	4c 89 ff             	mov    %r15,%rdi
  33:	e8 98 c4 89 00       	call   0x89c4d0
  38:	48                   	rex.W
  39:	be 00 00 00 00       	mov    $0x0,%esi
  3e:	00 fc                	add    %bh,%ah

final repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc000000003c: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000001e0-0x00000000000001e7]
CPU: 1 UID: 0 PID: 5836 Comm: syz-executor181 Not tainted 6.14.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__lock_acquire+0x6a/0x2100 kernel/locking/lockdep.c:5091
Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d 6b 27 9f 0e 00 0f 84 c8 13 00 00 89 54 24 60 89 5c 24 38 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 98 c4 89 00 48 be 00 00 00 00 00 fc
RSP: 0018:ffffc90003997850 EFLAGS: 00010006
RAX: 000000000000003c RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00000000000001e0
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff20779af R12: ffff888032430000
R13: 0000000000000000 R14: 0000000000000000 R15: 00000000000001e0
FS:  0000555579f20380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555579f20338 CR3: 0000000055d3c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
 down_read_killable+0xca/0xd30 kernel/locking/rwsem.c:1547
 mmap_read_lock_killable include/linux/mmap_lock.h:199 [inline]
 do_pagemap_scan fs/proc/task_mmu.c:2766 [inline]
 do_pagemap_cmd+0x82e/0x1240 fs/proc/task_mmu.c:2819
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9860fe1c39
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd73b62488 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9860fe1c39
RDX: 0000400000000100 RSI: 00000000c0606610 RDI: 0000000000000004
RBP: 0000000000010403 R08: 00007ffd73b62134 R09: 0000000000000006
R10: 0000000000000014 R11: 0000000000000246 R12: 00007ffd73b6249c
R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0x6a/0x2100 kernel/locking/lockdep.c:5091
Code: b6 04 30 84 c0 0f 85 f8 16 00 00 45 31 f6 83 3d 6b 27 9f 0e 00 0f 84 c8 13 00 00 89 54 24 60 89 5c 24 38 4c 89 f8 48 c1 e8 03 <80> 3c 30 00 74 12 4c 89 ff e8 98 c4 89 00 48 be 00 00 00 00 00 fc
RSP: 0018:ffffc90003997850 EFLAGS: 00010006
RAX: 000000000000003c RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 00000000000001e0
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff20779af R12: ffff888032430000
R13: 0000000000000000 R14: 0000000000000000 R15: 00000000000001e0
FS:  0000555579f20380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555579f20338 CR3: 0000000055d3c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	b6 04                	mov    $0x4,%dh
   2:	30 84 c0 0f 85 f8 16 	xor    %al,0x16f8850f(%rax,%rax,8)
   9:	00 00                	add    %al,(%rax)
   b:	45 31 f6             	xor    %r14d,%r14d
   e:	83 3d 6b 27 9f 0e 00 	cmpl   $0x0,0xe9f276b(%rip)        # 0xe9f2780
  15:	0f 84 c8 13 00 00    	je     0x13e3
  1b:	89 54 24 60          	mov    %edx,0x60(%rsp)
  1f:	89 5c 24 38          	mov    %ebx,0x38(%rsp)
  23:	4c 89 f8             	mov    %r15,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 30 00          	cmpb   $0x0,(%rax,%rsi,1) <-- trapping instruction
  2e:	74 12                	je     0x42
  30:	4c 89 ff             	mov    %r15,%rdi
  33:	e8 98 c4 89 00       	call   0x89c4d0
  38:	48                   	rex.W
  39:	be 00 00 00 00       	mov    $0x0,%esi
  3e:	00 fc                	add    %bh,%ah