BUG: unable to handle page fault for address: ffffed1800000017 #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: 0 PID: 275 Comm: syz-executor Tainted: G W 5.15.180-syzkaller-00024-g88c4075c39ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 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:401 [inline] RIP: 0010:__rb_erase_color+0xa34/0xaf0 lib/rbtree.c:413 Code: ff e8 f0 1a 3b ff 4d 89 27 48 8b 45 d0 48 89 18 4d 85 f6 74 70 49 8d 5e 10 49 89 dc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 04 00 74 08 48 89 df e8 1d 1a 3b ff 48 8b 45 d0 48 39 03 RSP: 0018:ffffc900009a7a00 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: ffff88c0000000b8 RCX: dffffc0000000000 RDX: ffffffff819addd0 RSI: 1ffff110222b0d8f RDI: ffff8881067eed10 RBP: ffffc900009a7a60 R08: dffffc0000000000 R09: ffffed10222b0d93 R10: ffffed10222b0d93 R11: 1ffff110222b0d92 R12: 1ffff11800000017 R13: ffff88810f62ae38 R14: ffff88c0000000a8 R15: ffff88810f62ae38 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1800000017 CR3: 0000000126f83000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 00000000000000fd 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+0xadf/0xb00 mm/interval_tree.c:23 __remove_shared_vm_struct mm/mmap.c:159 [inline] unlink_file_vma+0xd7/0xf0 mm/mmap.c:174 free_pgtables+0x139/0x280 mm/memory.c:490 exit_mmap+0x407/0x860 mm/mmap.c:3235 __mmput+0x93/0x320 kernel/fork.c:1180 mmput+0x50/0x150 kernel/fork.c:1203 exit_mm kernel/exit.c:554 [inline] do_exit+0x9ca/0x27a0 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+0x832/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:232 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: 0033:0x7f92f2475969 Code: Unable to access opcode bytes at RIP 0x7f92f247593f. RSP: 002b:00007ffe80036ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f92f2475969 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043 RBP: 00007f92f24d2ad8 R08: 00007ffe80034c97 R09: 00000000000927c0 R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000000001 R13: 00000000000927c0 R14: 0000000000000000 R15: 00007ffe80037790 Modules linked in: CR2: ffffed1800000017 ---[ end trace cc22b21649882d6b ]--- 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:401 [inline] RIP: 0010:__rb_erase_color+0xa34/0xaf0 lib/rbtree.c:413 Code: ff e8 f0 1a 3b ff 4d 89 27 48 8b 45 d0 48 89 18 4d 85 f6 74 70 49 8d 5e 10 49 89 dc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 04 00 74 08 48 89 df e8 1d 1a 3b ff 48 8b 45 d0 48 39 03 RSP: 0018:ffffc900009a7a00 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: ffff88c0000000b8 RCX: dffffc0000000000 RDX: ffffffff819addd0 RSI: 1ffff110222b0d8f RDI: ffff8881067eed10 RBP: ffffc900009a7a60 R08: dffffc0000000000 R09: ffffed10222b0d93 R10: ffffed10222b0d93 R11: 1ffff110222b0d92 R12: 1ffff11800000017 R13: ffff88810f62ae38 R14: ffff88c0000000a8 R15: ffff88810f62ae38 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1800000017 CR3: 0000000126f83000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 00000000000000fd DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: e8 f0 1a 3b ff call 0xff3b1af5 5: 4d 89 27 mov %r12,(%r15) 8: 48 8b 45 d0 mov -0x30(%rbp),%rax c: 48 89 18 mov %rbx,(%rax) f: 4d 85 f6 test %r14,%r14 12: 74 70 je 0x84 14: 49 8d 5e 10 lea 0x10(%r14),%rbx 18: 49 89 dc mov %rbx,%r12 1b: 49 c1 ec 03 shr $0x3,%r12 1f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 26: fc ff df * 29: 41 80 3c 04 00 cmpb $0x0,(%r12,%rax,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 48 89 df mov %rbx,%rdi 33: e8 1d 1a 3b ff call 0xff3b1a55 38: 48 8b 45 d0 mov -0x30(%rbp),%rax 3c: 48 39 03 cmp %rax,(%rbx)