RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
------------[ cut here ]------------
WARNING: CPU: 1 PID: 20504 at mm/vma.c:734 vma_merge_existing_range+0x1145/0x16f0 mm/vma.c:734
Modules linked in:
CPU: 1 UID: 0 PID: 20504 Comm: syz.6.5485 Not tainted 6.13.0-rc4-syzkaller-00069-g8379578b11d5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:vma_merge_existing_range+0x1145/0x16f0 mm/vma.c:734
Code: e8 20 24 0f 00 4d 2b 7d 00 4d 89 ec 48 8b 7c 24 38 e9 7f 01 00 00 e8 3a bc a8 ff 90 0f 0b 90 e9 a8 f1 ff ff e8 2c bc a8 ff 90 <0f> 0b 90 e9 0e f2 ff ff e8 1e bc a8 ff 90 0f 0b 90 4d 85 ed 0f 85
RSP: 0018:ffffc9000ba274a0 EFLAGS: 00010293
RAX: ffffffff81f6b804 RBX: 0000000020c25000 RCX: ffff888060ad1e00
RDX: 0000000000000000 RSI: 0000000020c25000 RDI: 0000000020c25000
RBP: ffffc9000ba275f8 R08: ffffffff81f6aa0d R09: 00000000280000fa
R10: ffffc9000ba27810 R11: fffff52001744f07 R12: 0000000020c25000
R13: ffff888069b666c8 R14: ffffc9000ba276a0 R15: ffff888068d0b1f0
FS: 0000000000000000(0000) GS:ffff8880b8700000(0063) knlGS:00000000f5116b40
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00007fa9de2c0018 CR3: 000000006b562000 CR4: 00000000003526f0
Call Trace:
<TASK>
vma_modify+0x41/0x330 mm/vma.c:1514
vma_modify_flags_name+0x3a6/0x430 mm/vma.c:1563
madvise_update_vma+0x2fe/0xc10 mm/madvise.c:159
madvise_vma_behavior mm/madvise.c:1325 [inline]
madvise_walk_vmas mm/madvise.c:1497 [inline]
do_madvise+0x1e64/0x4d10 mm/madvise.c:1684
__do_sys_madvise mm/madvise.c:1700 [inline]
__se_sys_madvise mm/madvise.c:1698 [inline]
__ia32_sys_madvise+0xa6/0xc0 mm/madvise.c:1698
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: 0023:0xf7fc2579
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:00000000f511655c EFLAGS: 00000206 ORIG_RAX: 00000000000000db
RAX: ffffffffffffffda RBX: 0000000020c00000 RCX: 0000000000400000
RDX: 000000000000000e RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
----------------
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