BUG: unable to handle page fault for address: ffffed1800000009 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 23fff2067 P4D 23fff2067 PUD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 302 Comm: syz-executor.2 Tainted: G W 5.15.148-syzkaller-00013-gad06eaf051cd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__rb_change_child include/linux/rbtree_augmented.h:173 [inline] RIP: 0010:__rb_rotate_set_parents lib/rbtree.c:81 [inline] RIP: 0010:____rb_erase_color lib/rbtree.c:348 [inline] RIP: 0010:__rb_erase_color+0x777/0xa60 lib/rbtree.c:413 Code: 00 49 89 c4 74 08 4c 89 ef e8 15 1f 2b ff 48 8b 45 c8 49 89 45 00 4d 85 f6 48 8b 5d a0 74 29 49 8d 5e 10 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 4a 1e 2b ff 49 8d 46 08 4d 39 6e RSP: 0018:ffffc90000ac7a00 EFLAGS: 00010a06 RAX: 1ffff11800000009 RBX: ffff88c000000048 RCX: dffffc0000000000 RDX: ffffffff81a51930 RSI: ffff888109319aa8 RDI: ffff88811e5514f8 RBP: ffffc90000ac7a60 R08: ffffffff81a4f9f0 R09: ffffed1021263359 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88811e5514f8 R14: ffff88c000000038 R15: ffff888123df03d0 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1800000009 CR3: 000000011e658000 CR4: 00000000003506a0 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+0xb82/0xba0 mm/interval_tree.c:23 __remove_shared_vm_struct mm/mmap.c:158 [inline] unlink_file_vma+0xd9/0xf0 mm/mmap.c:173 free_pgtables+0x13f/0x280 mm/memory.c:486 exit_mmap+0x3e7/0x6f0 mm/mmap.c:3210 __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 __do_sys_exit_group kernel/exit.c:1011 [inline] __se_sys_exit_group kernel/exit.c:1009 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1009 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f5f34bbfea9 Code: Unable to access opcode bytes at RIP 0x7f5f34bbfe7f. RSP: 002b:00007ffc94995248 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5f34bbfea9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043 RBP: 00007f5f34c0c50a R08: 00007ffc94992fe6 R09: 0000000000000000 R10: 000000000000000a R11: 0000000000000246 R12: 000000000000000b R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 Modules linked in: CR2: ffffed1800000009 ---[ end trace 14a978dca5d18145 ]--- RIP: 0010:__rb_change_child include/linux/rbtree_augmented.h:173 [inline] RIP: 0010:__rb_rotate_set_parents lib/rbtree.c:81 [inline] RIP: 0010:____rb_erase_color lib/rbtree.c:348 [inline] RIP: 0010:__rb_erase_color+0x777/0xa60 lib/rbtree.c:413 Code: 00 49 89 c4 74 08 4c 89 ef e8 15 1f 2b ff 48 8b 45 c8 49 89 45 00 4d 85 f6 48 8b 5d a0 74 29 49 8d 5e 10 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 4a 1e 2b ff 49 8d 46 08 4d 39 6e RSP: 0018:ffffc90000ac7a00 EFLAGS: 00010a06 RAX: 1ffff11800000009 RBX: ffff88c000000048 RCX: dffffc0000000000 RDX: ffffffff81a51930 RSI: ffff888109319aa8 RDI: ffff88811e5514f8 RBP: ffffc90000ac7a60 R08: ffffffff81a4f9f0 R09: ffffed1021263359 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88811e5514f8 R14: ffff88c000000038 R15: ffff888123df03d0 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1800000009 CR3: 000000011e658000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 49 89 c4 mov %rax,%r12 3: 74 08 je 0xd 5: 4c 89 ef mov %r13,%rdi 8: e8 15 1f 2b ff call 0xff2b1f22 d: 48 8b 45 c8 mov -0x38(%rbp),%rax 11: 49 89 45 00 mov %rax,0x0(%r13) 15: 4d 85 f6 test %r14,%r14 18: 48 8b 5d a0 mov -0x60(%rbp),%rbx 1c: 74 29 je 0x47 1e: 49 8d 5e 10 lea 0x10(%r14),%rbx 22: 48 89 d8 mov %rbx,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 48 89 df mov %rbx,%rdi 33: e8 4a 1e 2b ff call 0xff2b1e82 38: 49 8d 46 08 lea 0x8(%r14),%rax 3c: 4d rex.WRB 3d: 39 .byte 0x39 3e: 6e outsb %ds:(%rsi),(%dx)