general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 4099 Comm: syz.0.1144 Not tainted 5.15.167-syzkaller-02003-g5e4635681cf1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:____rb_erase_color lib/rbtree.c:242 [inline] RIP: 0010:__rb_erase_color+0x60/0xa60 lib/rbtree.c:413 Code: 03 48 89 45 c8 42 80 3c 20 00 74 08 48 89 df e8 c6 cf 2a ff 4c 8b 33 4d 39 f7 0f 84 87 01 00 00 4c 89 e0 4d 89 f4 49 c1 ec 03 <41> 80 3c 04 00 74 08 4c 89 f7 e8 a1 cf 2a ff 48 89 5d a8 41 f6 06 RSP: 0018:ffffc90002e0f9e0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88811bcfdac8 RCX: ffff88810b3813c0 RDX: ffffffff81a56990 RSI: ffff88810935cf40 RDI: ffff8881224ebe38 RBP: ffffc90002e0fa40 R08: ffffffff81a54a50 R09: ffffed102126b9ec R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffff88811bcfdac0 R14: 0000000000000000 R15: ffff8881224ebe38 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000100000002 CR3: 000000010c18f000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: rb_erase_augmented include/linux/rbtree_augmented.h:305 [inline] rb_erase_augmented_cached include/linux/rbtree_augmented.h:314 [inline] vma_interval_tree_remove+0xb82/0xba0 mm/interval_tree.c:23 __remove_shared_vm_struct mm/mmap.c:159 [inline] unlink_file_vma+0xd9/0xf0 mm/mmap.c:174 free_pgtables+0x13f/0x280 mm/memory.c:490 exit_mmap+0x405/0x940 mm/mmap.c:3217 __mmput+0x95/0x310 kernel/fork.c:1179 mmput+0x5b/0x170 kernel/fork.c:1202 exit_mm kernel/exit.c:554 [inline] do_exit+0xb9c/0x2ca0 kernel/exit.c:867 do_group_exit+0x141/0x310 kernel/exit.c:1002 __do_sys_exit_group kernel/exit.c:1013 [inline] __se_sys_exit_group kernel/exit.c:1011 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1011 x64_sys_call+0x610/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f8e25e38ff9 Code: Unable to access opcode bytes at RIP 0x7f8e25e38fcf. RSP: 002b:00007ffd16624728 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8e25e38ff9 RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007ffd1662477c R08: 00007ffd1662480f R09: 0000000000020ef6 R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000032 R13: 0000000000020ef6 R14: 0000000000020b70 R15: 00007ffd166247d0 Modules linked in: ---[ end trace 6893002e6742bcc3 ]--- RIP: 0010:____rb_erase_color lib/rbtree.c:242 [inline] RIP: 0010:__rb_erase_color+0x60/0xa60 lib/rbtree.c:413 Code: 03 48 89 45 c8 42 80 3c 20 00 74 08 48 89 df e8 c6 cf 2a ff 4c 8b 33 4d 39 f7 0f 84 87 01 00 00 4c 89 e0 4d 89 f4 49 c1 ec 03 <41> 80 3c 04 00 74 08 4c 89 f7 e8 a1 cf 2a ff 48 89 5d a8 41 f6 06 RSP: 0018:ffffc90002e0f9e0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88811bcfdac8 RCX: ffff88810b3813c0 RDX: ffffffff81a56990 RSI: ffff88810935cf40 RDI: ffff8881224ebe38 RBP: ffffc90002e0fa40 R08: ffffffff81a54a50 R09: ffffed102126b9ec R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffff88811bcfdac0 R14: 0000000000000000 R15: ffff8881224ebe38 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000100000002 CR3: 00000001224e0000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: 03 48 89 add -0x77(%rax),%ecx 3: 45 c8 42 80 3c rex.RB enter $0x8042,$0x3c 8: 20 00 and %al,(%rax) a: 74 08 je 0x14 c: 48 89 df mov %rbx,%rdi f: e8 c6 cf 2a ff call 0xff2acfda 14: 4c 8b 33 mov (%rbx),%r14 17: 4d 39 f7 cmp %r14,%r15 1a: 0f 84 87 01 00 00 je 0x1a7 20: 4c 89 e0 mov %r12,%rax 23: 4d 89 f4 mov %r14,%r12 26: 49 c1 ec 03 shr $0x3,%r12 * 2a: 41 80 3c 04 00 cmpb $0x0,(%r12,%rax,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 f7 mov %r14,%rdi 34: e8 a1 cf 2a ff call 0xff2acfda 39: 48 89 5d a8 mov %rbx,-0x58(%rbp) 3d: 41 rex.B 3e: f6 .byte 0xf6 3f: 06 (bad)