BUG: unable to handle page fault for address: ffffed180000001d #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: 3132 Comm: syz.6.788 Tainted: G W 5.15.178-syzkaller-00013-g7d1f9b5c2ff5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:__rb_insert lib/rbtree.c:110 [inline] RIP: 0010:__rb_insert_augmented+0x63/0x610 lib/rbtree.c:459 Code: 58 2a ff 4d 8b 2f 4d 85 ed 75 18 e9 a7 05 00 00 4c 8b 2b 49 89 df 49 83 e5 fc 4c 89 2b 0f 84 91 05 00 00 4c 89 eb 48 c1 eb 03 <42> 80 3c 23 00 74 08 4c 89 ef e8 ce 57 2a ff 49 8b 45 00 a8 01 0f RSP: 0018:ffffc900059df8f8 EFLAGS: 00010a06 RAX: 1ffff11021d059a2 RBX: 1ffff1180000001d RCX: dffffc0000000000 RDX: ffffffff81a59790 RSI: ffff888109948ef8 RDI: ffff888122167870 RBP: ffffc900059df960 R08: dffffc0000000000 R09: ffff888122167878 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88c0000000e8 R14: ffff88810e82cd11 R15: ffff88810e82cd10 FS: 00007f206a6b36c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000001d CR3: 000000010f9b3000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: rb_insert_augmented include/linux/rbtree_augmented.h:50 [inline] vma_interval_tree_insert_after+0x2be/0x2d0 mm/interval_tree.c:57 dup_mmap kernel/fork.c:632 [inline] dup_mm kernel/fork.c:1522 [inline] copy_mm+0xba2/0x13e0 kernel/fork.c:1574 copy_process+0x1149/0x3290 kernel/fork.c:2263 kernel_clone+0x21e/0x9e0 kernel/fork.c:2661 __do_sys_clone kernel/fork.c:2787 [inline] __se_sys_clone kernel/fork.c:2771 [inline] __x64_sys_clone+0x23f/0x290 kernel/fork.c:2771 x64_sys_call+0x1b0/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:57 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: 0033:0x7f206c08b169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f206a6b2fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f206c2a4160 RCX: 00007f206c08b169 RDX: 0000200000000280 RSI: 00002000000007d0 RDI: 0000000000000000 RBP: 00007f206c10c2a0 R08: 0000200000000600 R09: 0000200000000600 R10: 0000200000000480 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f206c2a4160 R15: 00007fff513f7268 Modules linked in: CR2: ffffed180000001d ---[ end trace bd9916cbf9af7f75 ]--- RIP: 0010:__rb_insert lib/rbtree.c:110 [inline] RIP: 0010:__rb_insert_augmented+0x63/0x610 lib/rbtree.c:459 Code: 58 2a ff 4d 8b 2f 4d 85 ed 75 18 e9 a7 05 00 00 4c 8b 2b 49 89 df 49 83 e5 fc 4c 89 2b 0f 84 91 05 00 00 4c 89 eb 48 c1 eb 03 <42> 80 3c 23 00 74 08 4c 89 ef e8 ce 57 2a ff 49 8b 45 00 a8 01 0f RSP: 0018:ffffc900059df8f8 EFLAGS: 00010a06 RAX: 1ffff11021d059a2 RBX: 1ffff1180000001d RCX: dffffc0000000000 RDX: ffffffff81a59790 RSI: ffff888109948ef8 RDI: ffff888122167870 RBP: ffffc900059df960 R08: dffffc0000000000 R09: ffff888122167878 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88c0000000e8 R14: ffff88810e82cd11 R15: ffff88810e82cd10 FS: 00007f206a6b36c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000001d CR3: 000000010f9b3000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: 58 pop %rax 1: 2a ff sub %bh,%bh 3: 4d 8b 2f mov (%r15),%r13 6: 4d 85 ed test %r13,%r13 9: 75 18 jne 0x23 b: e9 a7 05 00 00 jmp 0x5b7 10: 4c 8b 2b mov (%rbx),%r13 13: 49 89 df mov %rbx,%r15 16: 49 83 e5 fc and $0xfffffffffffffffc,%r13 1a: 4c 89 2b mov %r13,(%rbx) 1d: 0f 84 91 05 00 00 je 0x5b4 23: 4c 89 eb mov %r13,%rbx 26: 48 c1 eb 03 shr $0x3,%rbx * 2a: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 ef mov %r13,%rdi 34: e8 ce 57 2a ff call 0xff2a5807 39: 49 8b 45 00 mov 0x0(%r13),%rax 3d: a8 01 test $0x1,%al 3f: 0f .byte 0xf