R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 1 UID: 0 PID: 12488 Comm: syz.6.5710 Not tainted 6.12.0-rc7-syzkaller-00012-g3022e9d00ebe #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 8b 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 81 42 f6 48 8b 1b 49 8d 7e 48 RSP: 0018:ffffc9000c277660 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff88803053bc00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000c2777d0 R08: ffffffff8bbc2157 R09: 0000000000000000 R10: ffffc9000c277708 R11: fffff5200184eeea R12: 0000000000000000 R13: ffffc9000c277ac0 R14: ffffc9000c277700 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b8700000(0063) knlGS:00000000f5716b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007f4501f88440 CR3: 000000001b7b2000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000000e DR6: 00000000ffff0ff0 DR7: 0000000000000400 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_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: 0023:0xf7f90579 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:00000000f571655c EFLAGS: 00000206 ORIG_RAX: 00000000000000c0 RAX: ffffffffffffffda RBX: 0000000020ffc000 RCX: 0000000000002000 RDX: 0000000000000001 RSI: 0000000000000011 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 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 8b 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 81 42 f6 48 8b 1b 49 8d 7e 48 RSP: 0018:ffffc9000c277660 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000008 RCX: ffff88803053bc00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000c2777d0 R08: ffffffff8bbc2157 R09: 0000000000000000 R10: ffffc9000c277708 R11: fffff5200184eeea R12: 0000000000000000 R13: ffffc9000c277ac0 R14: ffffc9000c277700 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b8700000(0063) knlGS:00000000f5716b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000020059018 CR3: 000000001b7b2000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000000e DR6: 00000000ffff0ff0 DR7: 0000000000000400 ---------------- 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 8b b4 f5 call 0xf5b48b94 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 81 42 f6 call 0xf6428214 39: 48 8b 1b mov (%rbx),%rbx 3c: 49 8d 7e 48 lea 0x48(%r14),%rdi