------------[ cut here ]------------ WARNING: CPU: 0 PID: 7162 at mm/huge_memory.c:1602 copy_huge_pmd+0x102c/0x1c60 mm/huge_memory.c:1602 Modules linked in: CPU: 0 UID: 0 PID: 7162 Comm: syz.1.342 Not tainted 6.11.0-syzkaller-08833-gde5cb0dcb74c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:copy_huge_pmd+0x102c/0x1c60 mm/huge_memory.c:1602 Code: ff 90 0f 0b 90 e9 2e f5 ff ff e8 cf a1 92 ff 48 ff cb e9 0f f7 ff ff e8 c2 a1 92 ff 48 ff cb e9 8a f7 ff ff e8 b5 a1 92 ff 90 <0f> 0b 90 e9 11 fd ff ff 4c 8d ac 24 00 01 00 00 48 b8 06 fe ff ff RSP: 0018:ffffc900095e7140 EFLAGS: 00010283 RAX: ffffffff820217fb RBX: ffff88806ca8ebc0 RCX: 0000000000040000 RDX: ffffc90004091000 RSI: 0000000000004507 RDI: 0000000000004508 RBP: ffffc900095e72c8 R08: ffffffff820216c6 R09: fffff520012bce18 R10: dffffc0000000000 R11: fffff520012bce18 R12: ffff88806d7328a0 R13: d7ffe7fff4a3fe02 R14: 0000000000000020 R15: ffff88807d641d80 FS: 0000000000000000(0000) GS:ffff8880b8600000(0063) knlGS:00000000f56e6b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000020600000 CR3: 000000007d45c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: copy_pmd_range+0x425/0x85f0 mm/memory.c:1245 copy_pud_range mm/memory.c:1292 [inline] copy_p4d_range mm/memory.c:1316 [inline] copy_page_range+0x99f/0xe90 mm/memory.c:1414 dup_mmap kernel/fork.c:750 [inline] dup_mm kernel/fork.c:1674 [inline] copy_mm+0x11fb/0x1f40 kernel/fork.c:1723 copy_process+0x1845/0x3d50 kernel/fork.c:2375 kernel_clone+0x226/0x8f0 kernel/fork.c:2787 __do_compat_sys_ia32_clone arch/x86/kernel/sys_ia32.c:254 [inline] __se_compat_sys_ia32_clone arch/x86/kernel/sys_ia32.c:240 [inline] __ia32_compat_sys_ia32_clone+0x255/0x2a0 arch/x86/kernel/sys_ia32.c:240 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7f61579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f56e651c EFLAGS: 00000206 ORIG_RAX: 0000000000000078 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 90 nop 33: 90 nop 34: 90 nop 35: 90 nop 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop