Extracting prog: 2m7.555156317s
Minimizing prog: 10m31.874401835s
Simplifying prog options: 0s
Extracting C: 37.239578544s
Simplifying C: 9m44.563582398s


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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
r0 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xb, &(0x7f0000000180)=ANY=[@ANYBLOB="18000000000000000000000000001afc180100002020702500000000002020207b1af8ff00000000bfa100000000000007010000f8ffffffb702000002000000b703000000090000850000000400000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000140)={&(0x7f0000000000)='mm_page_alloc\x00', r0}, 0x10)

program crashed: WARNING in bpf_probe_read_compat
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=50.034860274s, {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}}): bpf$PROG_LOAD
detailed listing:
executing program 0:
bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xb, &(0x7f0000000180)=ANY=[@ANYBLOB="18000000000000000000000000001afc180100002020702500000000002020207b1af8ff00000000bfa100000000000007010000f8ffffffb702000002000000b703000000090000850000000400000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90)

program did not crash
testing program (duration=50.034860274s, {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}}): bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000140)={&(0x7f0000000000)='mm_page_alloc\x00'}, 0x10)

program did not crash
testing program (duration=50.034860274s, {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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
r0 = bpf$PROG_LOAD(0x5, 0x0, 0x0)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000140)={&(0x7f0000000000)='mm_page_alloc\x00', r0}, 0x10)

program did not crash
testing program (duration=50.034860274s, {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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
r0 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xb, 0x0, &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000140)={&(0x7f0000000000)='mm_page_alloc\x00', r0}, 0x10)

program did not crash
testing program (duration=50.034860274s, {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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
r0 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xb, &(0x7f0000000180)=ANY=[@ANYBLOB], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000140)={&(0x7f0000000000)='mm_page_alloc\x00', r0}, 0x10)

program did not crash
testing program (duration=50.034860274s, {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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
r0 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xb, &(0x7f0000000180)=ANY=[@ANYBLOB="18000000000000000000000000001afc180100002020702500000000002020207b1af8ff00000000bfa100000000000007010000f8ffffffb702000002000000b703000000090000850000000400000095"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000140)={&(0x7f0000000000)='mm_page_alloc\x00', r0}, 0x10)

program did not crash
testing program (duration=50.034860274s, {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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xb, &(0x7f0000000180)=ANY=[@ANYBLOB="18000000000000000000000000001afc180100002020702500000000002020207b1af8ff00000000bfa100000000000007010000f8ffffffb702000002000000b703000000090000850000000400000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, 0x0, 0x0)

program did not crash
testing program (duration=50.034860274s, {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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
r0 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xb, &(0x7f0000000180)=ANY=[@ANYBLOB="18000000000000000000000000001afc180100002020702500000000002020207b1af8ff00000000bfa100000000000007010000f8ffffffb702000002000000b703000000090000850000000400000095"], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000140)={0x0, r0}, 0x18)

program did not crash
extracting C reproducer
testing compiled C program (duration=50.034860274s, {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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program crashed: WARNING in bpf_probe_read_compat
simplifying C reproducer
testing compiled C program (duration=50.034860274s, {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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program crashed: WARNING in bpf_probe_read_compat
testing compiled C program (duration=50.034860274s, {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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program did not crash
testing compiled C program (duration=50.034860274s, {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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program did not crash
testing compiled C program (duration=50.034860274s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program crashed: WARNING in bpf_probe_read_compat
testing compiled C program (duration=50.034860274s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program crashed: WARNING in bpf_probe_read_compat
testing compiled C program (duration=50.034860274s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program crashed: WARNING in bpf_probe_read_compat
testing compiled C program (duration=50.034860274s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program crashed: WARNING in bpf_probe_read_compat
testing compiled C program (duration=50.034860274s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
program crashed: WARNING in bpf_probe_read_compat
reproducing took 23m1.232738734s
repro crashed as (corrupted=false):
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4202 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 1 PID: 4202 Comm: syz-executor319 Not tainted 5.15.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 cb ba d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 b4 ba d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0000:ffffc90000dd0650 EFLAGS: 00010246
RAX: ffffffff81aaca2c RBX: 0000000000000000 RCX: ffff88802b0b9dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aac93d R09: ffffed10056173b9
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000900
R13: 0000000000000002 R14: 0000000000000900 R15: ffffc90000dd06c8
FS:  00005555954b8380(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000900 CR3: 0000000073b1b000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
 ____bpf_probe_read_compat kernel/trace/bpf_trace.c:281 [inline]
 bpf_probe_read_compat+0xe4/0x180 kernel/trace/bpf_trace.c:277
 bpf_prog_1878750df62aa1fb+0x40/0x3f8
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run4+0x1ea/0x390 kernel/trace/bpf_trace.c:1917
 __bpf_trace_mm_page_alloc+0xba/0xe0 include/trace/events/kmem.h:201
 __traceiter_mm_page_alloc+0x35/0x50 include/trace/events/kmem.h:201
 trace_mm_page_alloc include/trace/events/kmem.h:201 [inline]
 __alloc_pages+0x6e0/0x700 mm/page_alloc.c:5487
 skb_page_frag_refill+0x220/0x4b0 net/core/sock.c:2664
 add_recvbuf_mergeable drivers/net/virtio_net.c:1329 [inline]
 try_fill_recv+0x49d/0x17d0 drivers/net/virtio_net.c:1370
 virtnet_receive drivers/net/virtio_net.c:1484 [inline]
 virtnet_poll+0x83a/0x1260 drivers/net/virtio_net.c:1585
 __napi_poll+0xc7/0x440 net/core/dev.c:7043
 napi_poll net/core/dev.c:7110 [inline]
 net_rx_action+0x617/0xda0 net/core/dev.c:7200
 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
 __do_softirq kernel/softirq.c:592 [inline]
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
 common_interrupt+0xb3/0xd0 arch/x86/kernel/irq.c:240
 </IRQ>
 <TASK>
 asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:667
RIP: 0010:lock_acquire+0xa/0x4f0 kernel/locking/lockdep.c:5591
Code: 8e e8 1a a0 67 00 e9 a2 fd ff ff 0f 1f 44 00 00 65 8b 05 d1 a2 9f 7e a9 00 ff ff 00 0f 95 c0 c3 55 48 89 e5 41 57 41 56 41 55 <41> 54 53 48 83 e4 e0 48 81 ec 20 01 00 00 4c 89 4c 24 28 4c 89 44
RSP: 0000:ffffc90002e5f998 EFLAGS: 00000246
RAX: 61c146ec09466c00 RBX: ffff88802b0b9dec RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8cbf1d00
RBP: ffffc90002e5f9b0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801744f780
R13: 1ffff920005cbf54 R14: ffffc90002e5fa18 R15: 0000000000000001
 fs_reclaim_acquire+0xa7/0x120 mm/page_alloc.c:4597
 might_alloc include/linux/sched/mm.h:206 [inline]
 slab_pre_alloc_hook+0x22/0xc0 mm/slab.h:492
 slab_alloc_node mm/slub.c:3134 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 kmem_cache_alloc+0x3f/0x280 mm/slub.c:3233
 ptlock_alloc+0x1c/0x60 mm/memory.c:5554
 ptlock_init include/linux/mm.h:2230 [inline]
 pgtable_pte_page_ctor include/linux/mm.h:2257 [inline]
 __pte_alloc_one include/asm-generic/pgalloc.h:66 [inline]
 pte_alloc_one+0xd1/0x360 arch/x86/mm/pgtable.c:33
 __pte_alloc+0x75/0x210 mm/memory.c:439
 do_anonymous_page mm/memory.c:3804 [inline]
 handle_pte_fault mm/memory.c:4646 [inline]
 __handle_mm_fault mm/memory.c:4783 [inline]
 handle_mm_fault+0x4d9a/0x5960 mm/memory.c:4881
 do_user_addr_fault arch/x86/mm/fault.c:1357 [inline]
 handle_page_fault arch/x86/mm/fault.c:1445 [inline]
 exc_page_fault+0x271/0x700 arch/x86/mm/fault.c:1501
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0033:0x7fbbe34437c9
Code: 80 01 00 20 45 31 c9 45 31 c0 48 89 c7 48 8d 35 c5 98 07 00 45 31 db 45 31 d2 b9 51 00 00 00 66 0f ef c0 31 c0 ba c0 00 00 20 <c7> 04 25 c0 00 00 20 11 00 00 00 c7 04 25 c4 00 00 20 0b 00 00 00
RSP: 002b:00007ffd40a8a2d0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000051
RDX: 00000000200000c0 RSI: 00007fbbe34bd078 RDI: 0000000020000180
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ffd40a8a2f0 R15: 00007ffd40a8a2e0
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	e8 1a a0 67 00       	call   0x67a01f
   5:	e9 a2 fd ff ff       	jmp    0xfffffdac
   a:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   f:	65 8b 05 d1 a2 9f 7e 	mov    %gs:0x7e9fa2d1(%rip),%eax        # 0x7e9fa2e7
  16:	a9 00 ff ff 00       	test   $0xffff00,%eax
  1b:	0f 95 c0             	setne  %al
  1e:	c3                   	ret
  1f:	55                   	push   %rbp
  20:	48 89 e5             	mov    %rsp,%rbp
  23:	41 57                	push   %r15
  25:	41 56                	push   %r14
  27:	41 55                	push   %r13
* 29:	41 54                	push   %r12 <-- trapping instruction
  2b:	53                   	push   %rbx
  2c:	48 83 e4 e0          	and    $0xffffffffffffffe0,%rsp
  30:	48 81 ec 20 01 00 00 	sub    $0x120,%rsp
  37:	4c 89 4c 24 28       	mov    %r9,0x28(%rsp)
  3c:	4c                   	rex.WR
  3d:	89                   	.byte 0x89
  3e:	44                   	rex.R

final repro crashed as (corrupted=false):
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4202 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 1 PID: 4202 Comm: syz-executor319 Not tainted 5.15.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 cb ba d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 b4 ba d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0000:ffffc90000dd0650 EFLAGS: 00010246
RAX: ffffffff81aaca2c RBX: 0000000000000000 RCX: ffff88802b0b9dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aac93d R09: ffffed10056173b9
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000900
R13: 0000000000000002 R14: 0000000000000900 R15: ffffc90000dd06c8
FS:  00005555954b8380(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000900 CR3: 0000000073b1b000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
 ____bpf_probe_read_compat kernel/trace/bpf_trace.c:281 [inline]
 bpf_probe_read_compat+0xe4/0x180 kernel/trace/bpf_trace.c:277
 bpf_prog_1878750df62aa1fb+0x40/0x3f8
 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1878 [inline]
 bpf_trace_run4+0x1ea/0x390 kernel/trace/bpf_trace.c:1917
 __bpf_trace_mm_page_alloc+0xba/0xe0 include/trace/events/kmem.h:201
 __traceiter_mm_page_alloc+0x35/0x50 include/trace/events/kmem.h:201
 trace_mm_page_alloc include/trace/events/kmem.h:201 [inline]
 __alloc_pages+0x6e0/0x700 mm/page_alloc.c:5487
 skb_page_frag_refill+0x220/0x4b0 net/core/sock.c:2664
 add_recvbuf_mergeable drivers/net/virtio_net.c:1329 [inline]
 try_fill_recv+0x49d/0x17d0 drivers/net/virtio_net.c:1370
 virtnet_receive drivers/net/virtio_net.c:1484 [inline]
 virtnet_poll+0x83a/0x1260 drivers/net/virtio_net.c:1585
 __napi_poll+0xc7/0x440 net/core/dev.c:7043
 napi_poll net/core/dev.c:7110 [inline]
 net_rx_action+0x617/0xda0 net/core/dev.c:7200
 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
 __do_softirq kernel/softirq.c:592 [inline]
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
 common_interrupt+0xb3/0xd0 arch/x86/kernel/irq.c:240
 </IRQ>
 <TASK>
 asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:667
RIP: 0010:lock_acquire+0xa/0x4f0 kernel/locking/lockdep.c:5591
Code: 8e e8 1a a0 67 00 e9 a2 fd ff ff 0f 1f 44 00 00 65 8b 05 d1 a2 9f 7e a9 00 ff ff 00 0f 95 c0 c3 55 48 89 e5 41 57 41 56 41 55 <41> 54 53 48 83 e4 e0 48 81 ec 20 01 00 00 4c 89 4c 24 28 4c 89 44
RSP: 0000:ffffc90002e5f998 EFLAGS: 00000246
RAX: 61c146ec09466c00 RBX: ffff88802b0b9dec RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8cbf1d00
RBP: ffffc90002e5f9b0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801744f780
R13: 1ffff920005cbf54 R14: ffffc90002e5fa18 R15: 0000000000000001
 fs_reclaim_acquire+0xa7/0x120 mm/page_alloc.c:4597
 might_alloc include/linux/sched/mm.h:206 [inline]
 slab_pre_alloc_hook+0x22/0xc0 mm/slab.h:492
 slab_alloc_node mm/slub.c:3134 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 kmem_cache_alloc+0x3f/0x280 mm/slub.c:3233
 ptlock_alloc+0x1c/0x60 mm/memory.c:5554
 ptlock_init include/linux/mm.h:2230 [inline]
 pgtable_pte_page_ctor include/linux/mm.h:2257 [inline]
 __pte_alloc_one include/asm-generic/pgalloc.h:66 [inline]
 pte_alloc_one+0xd1/0x360 arch/x86/mm/pgtable.c:33
 __pte_alloc+0x75/0x210 mm/memory.c:439
 do_anonymous_page mm/memory.c:3804 [inline]
 handle_pte_fault mm/memory.c:4646 [inline]
 __handle_mm_fault mm/memory.c:4783 [inline]
 handle_mm_fault+0x4d9a/0x5960 mm/memory.c:4881
 do_user_addr_fault arch/x86/mm/fault.c:1357 [inline]
 handle_page_fault arch/x86/mm/fault.c:1445 [inline]
 exc_page_fault+0x271/0x700 arch/x86/mm/fault.c:1501
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0033:0x7fbbe34437c9
Code: 80 01 00 20 45 31 c9 45 31 c0 48 89 c7 48 8d 35 c5 98 07 00 45 31 db 45 31 d2 b9 51 00 00 00 66 0f ef c0 31 c0 ba c0 00 00 20 <c7> 04 25 c0 00 00 20 11 00 00 00 c7 04 25 c4 00 00 20 0b 00 00 00
RSP: 002b:00007ffd40a8a2d0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000051
RDX: 00000000200000c0 RSI: 00007fbbe34bd078 RDI: 0000000020000180
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ffd40a8a2f0 R15: 00007ffd40a8a2e0
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	e8 1a a0 67 00       	call   0x67a01f
   5:	e9 a2 fd ff ff       	jmp    0xfffffdac
   a:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   f:	65 8b 05 d1 a2 9f 7e 	mov    %gs:0x7e9fa2d1(%rip),%eax        # 0x7e9fa2e7
  16:	a9 00 ff ff 00       	test   $0xffff00,%eax
  1b:	0f 95 c0             	setne  %al
  1e:	c3                   	ret
  1f:	55                   	push   %rbp
  20:	48 89 e5             	mov    %rsp,%rbp
  23:	41 57                	push   %r15
  25:	41 56                	push   %r14
  27:	41 55                	push   %r13
* 29:	41 54                	push   %r12 <-- trapping instruction
  2b:	53                   	push   %rbx
  2c:	48 83 e4 e0          	and    $0xffffffffffffffe0,%rsp
  30:	48 81 ec 20 01 00 00 	sub    $0x120,%rsp
  37:	4c 89 4c 24 28       	mov    %r9,0x28(%rsp)
  3c:	4c                   	rex.WR
  3d:	89                   	.byte 0x89
  3e:	44                   	rex.R