general protection fault, probably for non-canonical address 0xdffffc1800000001: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x000000c000000008-0x000000c00000000f] CPU: 0 PID: 375 Comm: syz-executor.0 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:____rb_erase_color lib/rbtree.c:240 [inline] RIP: 0010:__rb_erase_color+0x3f/0xaf0 lib/rbtree.c:413 Code: 31 db 48 89 75 a8 48 c1 ee 03 48 89 75 b0 49 89 fe 4c 8d 6f 08 4c 89 e9 48 c1 e9 03 48 b8 00 00 00 00 00 fc ff df 48 89 4d c0 <80> 3c 01 00 74 08 4c 89 ef e8 23 c5 3a ff 4d 8b 7d 00 4c 39 fb 4c RSP: 0018:ffffc90000f07a60 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff88810c4cd748 RCX: 0000001800000001 RDX: ffffffff819b0560 RSI: 1ffff110222bd872 RDI: 000000c000000000 RBP: ffffc90000f07ac0 R08: dffffc0000000000 R09: ffffed10222bd876 R10: ffffed10222bd876 R11: 1ffff110222bd875 R12: ffff88810c7ade38 R13: 000000c000000008 R14: 000000c000000000 R15: ffff88810c7ad748 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1f70a18670 CR3: 00000001236aa000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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+0xadf/0xb00 mm/interval_tree.c:23 __remove_shared_vm_struct mm/mmap.c:160 [inline] unlink_file_vma+0xda/0xf0 mm/mmap.c:175 free_pgtables+0x139/0x280 mm/memory.c:490 exit_mmap+0x407/0x860 mm/mmap.c:3247 __mmput+0x93/0x320 kernel/fork.c:1180 mmput+0x50/0x150 kernel/fork.c:1203 exit_mm kernel/exit.c:554 [inline] do_exit+0x9d2/0x27a0 kernel/exit.c:876 __do_sys_exit kernel/exit.c:972 [inline] __se_sys_exit kernel/exit.c:970 [inline] __x64_sys_exit+0x40/0x40 kernel/exit.c:970 x64_sys_call+0x44/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:61 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f1f70e95ae9 Code: Unable to access opcode bytes at RIP 0x7f1f70e95abf. RSP: 002b:00007f1f70a18078 EFLAGS: 00000246 ORIG_RAX: 000000000000003c RAX: ffffffffffffffda RBX: 00007f1f70fb4f80 RCX: 00007f1f70e95ae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f1f70a18120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 000000000000000b R14: 00007f1f70fb4f80 R15: 00007ffc05f6d698 Modules linked in: ---[ end trace ae6741df64511906 ]--- RIP: 0010:____rb_erase_color lib/rbtree.c:240 [inline] RIP: 0010:__rb_erase_color+0x3f/0xaf0 lib/rbtree.c:413 Code: 31 db 48 89 75 a8 48 c1 ee 03 48 89 75 b0 49 89 fe 4c 8d 6f 08 4c 89 e9 48 c1 e9 03 48 b8 00 00 00 00 00 fc ff df 48 89 4d c0 <80> 3c 01 00 74 08 4c 89 ef e8 23 c5 3a ff 4d 8b 7d 00 4c 39 fb 4c RSP: 0018:ffffc90000f07a60 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff88810c4cd748 RCX: 0000001800000001 RDX: ffffffff819b0560 RSI: 1ffff110222bd872 RDI: 000000c000000000 RBP: ffffc90000f07ac0 R08: dffffc0000000000 R09: ffffed10222bd876 R10: ffffed10222bd876 R11: 1ffff110222bd875 R12: ffff88810c7ade38 R13: 000000c000000008 R14: 000000c000000000 R15: ffff88810c7ad748 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1f70a18670 CR3: 000000010c732000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 31 db xor %ebx,%ebx 2: 48 89 75 a8 mov %rsi,-0x58(%rbp) 6: 48 c1 ee 03 shr $0x3,%rsi a: 48 89 75 b0 mov %rsi,-0x50(%rbp) e: 49 89 fe mov %rdi,%r14 11: 4c 8d 6f 08 lea 0x8(%rdi),%r13 15: 4c 89 e9 mov %r13,%rcx 18: 48 c1 e9 03 shr $0x3,%rcx 1c: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 23: fc ff df 26: 48 89 4d c0 mov %rcx,-0x40(%rbp) * 2a: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 ef mov %r13,%rdi 33: e8 23 c5 3a ff call 0xff3ac55b 38: 4d 8b 7d 00 mov 0x0(%r13),%r15 3c: 4c 39 fb cmp %r15,%rbx 3f: 4c rex.WR