RBP: 00007f2c5e8eb090 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 00007f2c5dd35f80 R15: 00007ffc76433048 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 UID: 0 PID: 12855 Comm: syz.1.2086 Not tainted 6.12.0-rc7-syzkaller-00042-gf1b785f4c787 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:mt_slot_locked lib/maple_tree.c:795 [inline] RIP: 0010:mas_slot_locked lib/maple_tree.c:808 [inline] RIP: 0010:mas_store_prealloc+0xa46/0x1390 lib/maple_tree.c:5514 Code: a0 60 35 8d be 1b 03 00 00 48 c7 c2 60 6b 35 8d e8 7f 7b b4 f5 4b 8d 1c e7 48 89 d8 48 c1 e8 03 49 bf 00 00 00 00 00 fc ff df <42> 80 3c 38 00 74 08 48 89 df e8 db 71 42 f6 48 8b 1b 49 8d 7e 48 RSP: 0018:ffffc90004a6f680 EFLAGS: 00010212 RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff8880253d0000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90004a6f7f0 R08: ffffffff8bbc4157 R09: ffffc90004a6f728 R10: dffffc0000000000 R11: fffff5200094deee R12: 0000000000000000 R13: ffffc90004a6fae0 R14: ffffc90004a6f720 R15: dffffc0000000000 FS: 00007f2c5e8eb6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c429f9a CR3: 0000000028604000 CR4: 0000000000350ef0 Call Trace: __mmap_region mm/mmap.c:1513 [inline] mmap_region+0x1caa/0x23f0 mm/mmap.c:1603 do_mmap+0x8f0/0x1000 mm/mmap.c:496 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588 ksys_mmap_pgoff+0x4eb/0x720 mm/mmap.c:542 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2c5db7e719 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:00007f2c5e8eb038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f2c5dd35f80 RCX: 00007f2c5db7e719 RDX: 0000000000000001 RSI: 0000000000002000 RDI: 0000000020ffc000 RBP: 00007f2c5e8eb090 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 00007f2c5dd35f80 R15: 00007ffc76433048 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:mt_slot_locked lib/maple_tree.c:795 [inline] RIP: 0010:mas_slot_locked lib/maple_tree.c:808 [inline] RIP: 0010:mas_store_prealloc+0xa46/0x1390 lib/maple_tree.c:5514 Code: a0 60 35 8d be 1b 03 00 00 48 c7 c2 60 6b 35 8d e8 7f 7b b4 f5 4b 8d 1c e7 48 89 d8 48 c1 e8 03 49 bf 00 00 00 00 00 fc ff df <42> 80 3c 38 00 74 08 48 89 df e8 db 71 42 f6 48 8b 1b 49 8d 7e 48 RSP: 0018:ffffc90004a6f680 EFLAGS: 00010212 RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff8880253d0000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90004a6f7f0 R08: ffffffff8bbc4157 R09: ffffc90004a6f728 R10: dffffc0000000000 R11: fffff5200094deee R12: 0000000000000000 R13: ffffc90004a6fae0 R14: ffffc90004a6f720 R15: dffffc0000000000 FS: 00007f2c5e8eb6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe2d5f60f40 CR3: 0000000028604000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: a0 60 35 8d be 1b 03 movabs 0x31bbe8d3560,%al 7: 00 00 9: 48 c7 c2 60 6b 35 8d mov $0xffffffff8d356b60,%rdx 10: e8 7f 7b b4 f5 call 0xf5b47b94 15: 4b 8d 1c e7 lea (%r15,%r12,8),%rbx 19: 48 89 d8 mov %rbx,%rax 1c: 48 c1 e8 03 shr $0x3,%rax 20: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15 27: fc ff df * 2a: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 df mov %rbx,%rdi 34: e8 db 71 42 f6 call 0xf6427214 39: 48 8b 1b mov (%rbx),%rbx 3c: 49 8d 7e 48 lea 0x48(%r14),%rdi