Oops: stack segment: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 6083 Comm: syz.0.26 Not tainted 6.16.0-rc5-next-20250711-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:mtree_range_walk+0x2d7/0x840 lib/maple_tree.c:2779 Code: 00 00 48 8d 04 2b 48 83 f8 01 0f 84 b4 00 00 00 e8 7e dd 46 f6 49 83 c4 08 48 ff c3 eb ac e8 70 dd 46 f6 31 db e9 e1 00 00 00 <80> 7d 00 00 74 07 31 ff e8 fc 93 ab f6 4c 8b 2c 25 00 00 00 00 48 RSP: 0018:ffffc90002e979c0 EFLAGS: 00010297 RAX: 0000000000000003 RBX: 0000000000000000 RCX: 0000000000000005 RDX: ffffffff8b79283a RSI: ffffffff8fcb99b0 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffff888026dd3c00 R09: 0000000000000003 R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f36e1b6d6c0(0000) GS:ffff88812578f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f36e1b4cd58 CR3: 0000000073790000 CR4: 00000000003526f0 Call Trace: mas_state_walk lib/maple_tree.c:3636 [inline] mas_walk lib/maple_tree.c:4939 [inline] mas_find_setup lib/maple_tree.c:6018 [inline] mas_find+0x8e9/0xd30 lib/maple_tree.c:6058 vma_next include/linux/mm.h:864 [inline] lock_next_vma+0x101/0xdc0 mm/mmap_lock.c:216 get_next_vma fs/proc/task_mmu.c:182 [inline] query_vma_find_by_addr fs/proc/task_mmu.c:512 [inline] query_matching_vma+0x319/0x5c0 fs/proc/task_mmu.c:544 do_procmap_query fs/proc/task_mmu.c:629 [inline] procfs_procmap_ioctl+0x3f9/0xd50 fs/proc/task_mmu.c:747 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f36e0d8e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f36e1b6d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f36e0fb5fa0 RCX: 00007f36e0d8e929 RDX: 0000200000000180 RSI: 00000000c0686611 RDI: 0000000000000003 RBP: 00007f36e0e10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f36e0fb5fa0 R15: 00007ffe38783b88 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:mtree_range_walk+0x2d7/0x840 lib/maple_tree.c:2779 Code: 00 00 48 8d 04 2b 48 83 f8 01 0f 84 b4 00 00 00 e8 7e dd 46 f6 49 83 c4 08 48 ff c3 eb ac e8 70 dd 46 f6 31 db e9 e1 00 00 00 <80> 7d 00 00 74 07 31 ff e8 fc 93 ab f6 4c 8b 2c 25 00 00 00 00 48 RSP: 0018:ffffc90002e979c0 EFLAGS: 00010297 RAX: 0000000000000003 RBX: 0000000000000000 RCX: 0000000000000005 RDX: ffffffff8b79283a RSI: ffffffff8fcb99b0 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffff888026dd3c00 R09: 0000000000000003 R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f36e1b6d6c0(0000) GS:ffff88812578f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f72e9d29ff8 CR3: 0000000073790000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 48 8d 04 2b lea (%rbx,%rbp,1),%rax 6: 48 83 f8 01 cmp $0x1,%rax a: 0f 84 b4 00 00 00 je 0xc4 10: e8 7e dd 46 f6 call 0xf646dd93 15: 49 83 c4 08 add $0x8,%r12 19: 48 ff c3 inc %rbx 1c: eb ac jmp 0xffffffca 1e: e8 70 dd 46 f6 call 0xf646dd93 23: 31 db xor %ebx,%ebx 25: e9 e1 00 00 00 jmp 0x10b * 2a: 80 7d 00 00 cmpb $0x0,0x0(%rbp) <-- trapping instruction 2e: 74 07 je 0x37 30: 31 ff xor %edi,%edi 32: e8 fc 93 ab f6 call 0xf6ab9433 37: 4c 8b 2c 25 00 00 00 mov 0x0,%r13 3e: 00 3f: 48 rex.W