RSP: 002b:00007f162d7d6fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f162ed15f80 RCX: 00007f162eb5def9 RDX: 0000000000000000 RSI: 0000000000009000 RDI: 0000000004021400 RBP: 00007f162d7d7090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000002 R13: 0000000000000000 R14: 00007f162ed15f80 R15: 00007ffd38cd9748 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: 6813 Comm: syz.3.1924 Tainted: G W 5.15.161-syzkaller-00425-gb92c0d35d015 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:rb_set_parent_color include/linux/rbtree_augmented.h:165 [inline] RIP: 0010:____rb_erase_color lib/rbtree.c:359 [inline] RIP: 0010:__rb_erase_color+0x2bd/0xa60 lib/rbtree.c:413 Code: 89 ef e8 96 fe 2a ff 48 8b 45 d0 49 89 45 00 49 89 c5 48 89 c3 48 83 cb 01 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 65 fe 2a ff 49 89 1e 4c 89 eb 48 c1 RSP: 0018:ffffc900020976a0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8881220502a9 RCX: dffffc0000000000 RDX: ffffffff81a56820 RSI: ffff8881092ee6a0 RDI: ffff8881220502a8 RBP: ffffc90002097700 R08: ffffffff81a548e0 R09: ffffed102125dcd8 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11021f81255 R13: ffff8881220502a8 R14: 0000000000000000 R15: ffff88810fc092a8 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2dad924760 CR3: 0000000006a0f000 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:487 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:552 [inline] do_exit+0xb9c/0x2ca0 kernel/exit.c:865 do_group_exit+0x141/0x310 kernel/exit.c:1000 get_signal+0x7a3/0x1630 kernel/signal.c:2896 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867 handle_signal_work kernel/entry/common.c:154 [inline] exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:178 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:307 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f162eb5def9 Code: Unable to access opcode bytes at RIP 0x7f162eb5decf. RSP: 002b:00007f162d7d70e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f162ed15f88 RCX: 00007f162eb5def9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f162ed15f88 RBP: 00007f162ed15f80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f162ed15f8c R13: 0000000000000000 R14: 00007ffd38cd9660 R15: 00007ffd38cd9748 Modules linked in: ---[ end trace 55b6dba3583173a8 ]--- RIP: 0010:rb_set_parent_color include/linux/rbtree_augmented.h:165 [inline] RIP: 0010:____rb_erase_color lib/rbtree.c:359 [inline] RIP: 0010:__rb_erase_color+0x2bd/0xa60 lib/rbtree.c:413 Code: 89 ef e8 96 fe 2a ff 48 8b 45 d0 49 89 45 00 49 89 c5 48 89 c3 48 83 cb 01 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 65 fe 2a ff 49 89 1e 4c 89 eb 48 c1 RSP: 0018:ffffc900020976a0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8881220502a9 RCX: dffffc0000000000 RDX: ffffffff81a56820 RSI: ffff8881092ee6a0 RDI: ffff8881220502a8 RBP: ffffc90002097700 R08: ffffffff81a548e0 R09: ffffed102125dcd8 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11021f81255 R13: ffff8881220502a8 R14: 0000000000000000 R15: ffff88810fc092a8 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2dac362000 CR3: 000000012a85c000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: 89 ef mov %ebp,%edi 2: e8 96 fe 2a ff call 0xff2afe9d 7: 48 8b 45 d0 mov -0x30(%rbp),%rax b: 49 89 45 00 mov %rax,0x0(%r13) f: 49 89 c5 mov %rax,%r13 12: 48 89 c3 mov %rax,%rbx 15: 48 83 cb 01 or $0x1,%rbx 19: 4c 89 f0 mov %r14,%rax 1c: 48 c1 e8 03 shr $0x3,%rax 20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 27: fc ff df * 2a: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 f7 mov %r14,%rdi 33: e8 65 fe 2a ff call 0xff2afe9d 38: 49 89 1e mov %rbx,(%r14) 3b: 4c 89 eb mov %r13,%rbx 3e: 48 rex.W 3f: c1 .byte 0xc1