------------[ cut here ]------------
WARNING: CPU: 0 PID: 16996 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 16996 Comm: syz.6.4005 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 dd 99 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 60 96 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: 0018:ffffc90000007e30 EFLAGS: 00010006
RAX: ffffffff81a05c40 RBX: 0000000000000000 RCX: ffff888023110000
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888023110007 R09: 1ffff11004622000
R10: dffffc0000000000 R11: ffffed1004622001 R12: ffff888023111788
R13: 00007ffffffff000 R14: ffffc90000007ea8 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33c21ff8 CR3: 000000000c08e000 CR4: 00000000003506f0
DR0: 0000200000000300 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_compat kernel/trace/bpf_trace.c:281 [inline]
bpf_probe_read_compat+0xdd/0x170 kernel/trace/bpf_trace.c:277
bpf_prog_03eebc38237b138e+0x34/0x654
bpf_dispatcher_nop_func include/linux/bpf.h:888 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
__bpf_prog_test_run_raw_tp+0x1cd/0x3f0 net/bpf/test_run.c:335
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:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:202
Code: 2e 0f 1f 84 00 00 00 00 00 90 53 48 89 fb e8 17 00 00 00 48 8b 3d 00 f0 10 0c 48 89 de 5b e9 b7 57 44 00 00 00 cc cc 00 00 cc <48> 8b 04 24 65 48 8b 0d 14 7d 89 7e 65 8b 15 15 7d 89 7e 81 e2 00
RSP: 0018:ffffc9000329f518 EFLAGS: 00000246
RAX: ffffffff81ad53e8 RBX: ffffea00009a42c8 RCX: ffff888023110000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000329f690 R08: ffff888023110007 R09: 1ffff11004622000
R10: dffffc0000000000 R11: ffffed1004622001 R12: 0000000000000000
R13: ffffea00009a42c0 R14: dffffc0000000000 R15: 1ffffd4000134859
_compound_head include/linux/page-flags.h:198 [inline]
PageAnon include/linux/page-flags.h:503 [inline]
mm_counter include/linux/mm.h:1984 [inline]
zap_pte_range mm/memory.c:1383 [inline]
zap_pmd_range mm/memory.c:1505 [inline]
zap_pud_range mm/memory.c:1534 [inline]
zap_p4d_range mm/memory.c:1555 [inline]
unmap_page_range+0xd77/0x2410 mm/memory.c:1576
unmap_vmas+0x131/0x250 mm/memory.c:1653
exit_mmap+0x3b9/0x640 mm/mmap.c:3216
__mmput+0x115/0x390 kernel/fork.c:1128
exit_mm+0x632/0x7b0 kernel/exit.c:551
do_exit+0x5b8/0x2110 kernel/exit.c:871
do_group_exit+0x12c/0x2f0 kernel/exit.c:998
get_signal+0x7eb/0x12e0 kernel/signal.c:2901
arch_do_signal_or_restart+0xe6/0x12a0 arch/x86/kernel/signal.c:867
handle_signal_work kernel/entry/common.c:154 [inline]
exit_to_user_mode_loop+0x9e/0x130 kernel/entry/common.c:178
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f8506594e59
Code: Unable to access opcode bytes at RIP 0x7f8506594e2f.
RSP: 002b:00007f85047ee0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f850680dfa8 RCX: 00007f8506594e59
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f850680dfa8
RBP: 00007f850680dfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f850680e038 R14: 00007ffd7b52e820 R15: 00007ffd7b52e908
----------------
Code disassembly (best guess):
0: 2e 0f 1f 84 00 00 00 cs nopl 0x0(%rax,%rax,1)
7: 00 00
9: 90 nop
a: 53 push %rbx
b: 48 89 fb mov %rdi,%rbx
e: e8 17 00 00 00 call 0x2a
13: 48 8b 3d 00 f0 10 0c mov 0xc10f000(%rip),%rdi # 0xc10f01a
1a: 48 89 de mov %rbx,%rsi
1d: 5b pop %rbx
1e: e9 b7 57 44 00 jmp 0x4457da
23: 00 00 add %al,(%rax)
25: cc int3
26: cc int3
27: 00 00 add %al,(%rax)
29: cc int3
* 2a: 48 8b 04 24 mov (%rsp),%rax <-- trapping instruction
2e: 65 48 8b 0d 14 7d 89 mov %gs:0x7e897d14(%rip),%rcx # 0x7e897d4a
35: 7e
36: 65 8b 15 15 7d 89 7e mov %gs:0x7e897d15(%rip),%edx # 0x7e897d52
3d: 81 .byte 0x81
3e: e2 00 loop 0x40