f7fc3000-ffe7efff: 0000000000000000 ffe7f000-ffe9ffff: ffff8880605f1040 ffea0000-ffffffffffffffff: 0000000000000000 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 13375 at mm/vma.c:808 vma_merge_existing_range mm/vma.c:808 [inline] WARNING: CPU: 0 PID: 13375 at mm/vma.c:808 vma_modify+0xa28/0x20a0 mm/vma.c:1604 Modules linked in: CPU: 0 UID: 0 PID: 13375 Comm: syz.6.1327 Not tainted 6.15.0-syzkaller-12141-gec7714e49479 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:vma_merge_existing_range mm/vma.c:808 [inline] RIP: 0010:vma_modify+0xa28/0x20a0 mm/vma.c:1604 Code: 12 00 00 4c 8b 63 28 4d 85 e4 0f 85 86 02 00 00 e9 b3 01 00 00 e8 28 f9 a9 ff 48 c7 c6 e0 03 9c 8b 48 89 df e8 f9 22 f2 ff 90 <0f> 0b 90 e9 51 f8 ff ff e8 0b f9 a9 ff 48 8b 54 24 20 48 b8 00 00 RSP: 0018:ffffc90003a1fb48 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffffc90003a1fc68 RCX: ffffffff8b71a883 RDX: ffff888012f2c880 RSI: ffffffff82118997 RDI: 0000000000000006 RBP: ffff888012f95a40 R08: 0000000000000006 R09: ffffffffffffffff R10: ffffffffffffffff R11: 0000000000000001 R12: 0000000080000001 R13: 0000000000000001 R14: 0000000080000000 R15: ffffc90003a1fc88 FS: 0000000000000000(0000) GS:ffff888097765000(0063) knlGS:00000000f50c5b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000559ee2961950 CR3: 000000005966d000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: vma_modify_flags+0x212/0x2d0 mm/vma.c:1645 mlock_fixup+0x27c/0xe50 mm/mlock.c:483 apply_mlockall_flags+0x2d4/0x470 mm/mlock.c:736 __do_sys_munlockall+0xc5/0x280 mm/mlock.c:782 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0x7c/0x3a0 arch/x86/entry/syscall_32.c:306 do_fast_syscall_32+0x32/0x80 arch/x86/entry/syscall_32.c:331 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7fc1579 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 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f50c555c EFLAGS: 00000296 ORIG_RAX: 0000000000000099 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 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: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi