------------[ cut here ]------------
WARNING: CPU: 0 PID: 22573 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 22573 Comm: syz.0.4423 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 ed f7 d8 ff 85 db 48 c7 c0 f2 ff ff ff 49 0f 44 c6 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 70 f4 d8 ff <0f> 0b e9 1c ff ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c ea fe
RSP: 0000:ffffc90000007d40 EFLAGS: 00010006
RAX: ffffffff819ecfb0 RBX: 0000000000000008 RCX: ffff888023349dc0
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888023349dc0 R09: 000000000000000c
R10: 000000000000000c R11: 0000000000010000 R12: ffff88802334b548
R13: dffffc0000000000 R14: ffffc90000007da8 R15: 0000000000000000
FS: 00007fe185fd66c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe185fd5f98 CR3: 000000007d3b2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
bpf_prog_3b53280d0bd88656+0x5b/0x3dc
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_run2+0x15b/0x2d0 kernel/trace/bpf_trace.c:1915
trace_tlb_flush+0xe6/0x110 include/trace/events/tlb.h:38
flush_tlb_func+0x43f/0x510 arch/x86/mm/tlb.c:855
flush_smp_call_function_queue+0x2a9/0x760 kernel/smp.c:628
__sysvec_call_function_single+0x98/0x240 arch/x86/kernel/smp.c:248
instr_sysvec_call_function_single arch/x86/kernel/smp.c:243 [inline]
sysvec_call_function_single+0x98/0xc0 arch/x86/kernel/smp.c:243
asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:684
RIP: 0010:seqcount_lockdep_reader_access+0x126/0x170 include/linux/seqlock.h:106
Code: 9b ca ff 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 47 41 f7 c5 00 02 00 00 74 01 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 66 43 c7 44 27 09 00 00 43 c6 44 27 0b 00
RSP: 0000:ffffc9000313f660 EFLAGS: 00000206
RAX: f62cde4c1a65b500 RBX: ffff88813fffb7c0 RCX: f62cde4c1a65b500
RDX: dffffc0000000000 RSI: ffffffff8a0b15c0 RDI: ffffffff8a599340
RBP: ffffc9000313f720 R08: dffffc0000000000 R09: fffffbfff1ff6e1f
R10: fffffbfff1ff6e1f R11: 1ffffffff1ff6e1e R12: dffffc0000000000
R13: 0000000000000a06 R14: ffffffff81b342f7 R15: 1ffff92000627ecc
read_seqbegin include/linux/seqlock.h:897 [inline]
zone_span_seqbegin include/linux/memory_hotplug.h:83 [inline]
page_outside_zone_boundaries mm/page_alloc.c:580 [inline]
bad_range+0x77/0x2d0 mm/page_alloc.c:607
rmqueue mm/page_alloc.c:3760 [inline]
get_page_from_freelist+0x1b56/0x1c60 mm/page_alloc.c:4189
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5474
alloc_pages_vma+0x393/0x7c0 mm/mempolicy.c:2146
wp_page_copy+0x235/0x1fd0 mm/memory.c:3056
handle_pte_fault mm/memory.c:4668 [inline]
__handle_mm_fault mm/memory.c:4785 [inline]
handle_mm_fault+0x1eca/0x43c0 mm/memory.c:4883
do_user_addr_fault+0x489/0xc80 arch/x86/mm/fault.c:1357
handle_page_fault arch/x86/mm/fault.c:1445 [inline]
exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1501
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0033:0x7fe187c2e1ee
Code: f6 31 c0 e8 b4 f2 13 00 48 81 c4 90 00 00 00 48 98 5b c3 66 0f 1f 84 00 00 00 00 00 41 54 55 53 48 89 fb 48 81 ec d0 00 00 00 <48> 89 74 24 28 48 89 54 24 30 48 89 4c 24 38 4c 89 44 24 40 4c 89
RSP: 002b:00007fe185fd5f70 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 00007fe187df317e RCX: 00007fe187df45fd
RDX: 00000000000122b5 RSI: 0000000000000000 RDI: 00007fe187df317e
RBP: 00007fe187df45fd R08: ffffffffffffffff R09: 00006c1ef7aef900
R10: 0000019ea9de6c28 R11: 0000000000026d1e R12: 0000000000000000
R13: 00007fe187f96038 R14: 00007fe187f95fa0 R15: 00007fffad9bc5f8
----------------
Code disassembly (best guess):
0: 9b fwait
1: ca ff 48 lret $0x48ff
4: c7 44 24 20 00 00 00 movl $0x0,0x20(%rsp)
b: 00
c: 9c pushf
d: 8f 44 24 20 pop 0x20(%rsp)
11: f6 44 24 21 02 testb $0x2,0x21(%rsp)
16: 75 47 jne 0x5f
18: 41 f7 c5 00 02 00 00 test $0x200,%r13d
1f: 74 01 je 0x22
21: fb sti
22: 48 c7 04 24 0e 36 e0 movq $0x45e0360e,(%rsp)
29: 45
* 2a: 4b c7 04 27 00 00 00 movq $0x0,(%r15,%r12,1) <-- trapping instruction
31: 00
32: 66 43 c7 44 27 09 00 movw $0x0,0x9(%r15,%r12,1)
39: 00
3a: 43 c6 44 27 0b 00 movb $0x0,0xb(%r15,%r12,1)