BUG: unable to handle page fault for address: ffffed1800000004 #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: 1222 Comm: syz-executor.0 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:__rb_insert lib/rbtree.c:110 [inline] RIP: 0010:__rb_insert_augmented+0x63/0x610 lib/rbtree.c:459 Code: 0b 2b 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 5e 0b 2b ff 49 8b 45 00 a8 01 0f RSP: 0018:ffffc90000af78f8 EFLAGS: 00010a02 RAX: 1ffff11025ec2158 RBX: 1ffff11800000004 RCX: dffffc0000000000 RDX: ffffffff81a50880 RSI: ffff888110260ef8 RDI: ffff888157264ac0 RBP: ffffc90000af7960 R08: dffffc0000000000 R09: ffff888157264ac8 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88c000000020 R14: ffff88812f610ac1 R15: ffff88812f610ac0 FS: 0000555556a1f480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1800000004 CR3: 0000000124320000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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:631 [inline] dup_mm kernel/fork.c:1521 [inline] copy_mm+0xba2/0x13e0 kernel/fork.c:1573 copy_process+0x1149/0x3290 kernel/fork.c:2264 kernel_clone+0x21e/0x9e0 kernel/fork.c:2662 __do_sys_clone kernel/fork.c:2788 [inline] __se_sys_clone kernel/fork.c:2772 [inline] __x64_sys_clone+0x23f/0x290 kernel/fork.c:2772 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: 0033:0x7f11e5f6cdd3 Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007ffd2a939c88 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f11e5f6cdd3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000555556a1f750 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 Modules linked in: CR2: ffffed1800000004 ---[ end trace 2decfbf064022d3c ]--- RIP: 0010:__rb_insert lib/rbtree.c:110 [inline] RIP: 0010:__rb_insert_augmented+0x63/0x610 lib/rbtree.c:459 Code: 0b 2b 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 5e 0b 2b ff 49 8b 45 00 a8 01 0f RSP: 0018:ffffc90000af78f8 EFLAGS: 00010a02 RAX: 1ffff11025ec2158 RBX: 1ffff11800000004 RCX: dffffc0000000000 RDX: ffffffff81a50880 RSI: ffff888110260ef8 RDI: ffff888157264ac0 RBP: ffffc90000af7960 R08: dffffc0000000000 R09: ffff888157264ac8 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88c000000020 R14: ffff88812f610ac1 R15: ffff88812f610ac0 FS: 0000555556a1f480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1800000004 CR3: 0000000124320000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 2b ff sub %edi,%edi 2: 4d 8b 2f mov (%r15),%r13 5: 4d 85 ed test %r13,%r13 8: 75 18 jne 0x22 a: e9 a7 05 00 00 jmp 0x5b6 f: 4c 8b 2b mov (%rbx),%r13 12: 49 89 df mov %rbx,%r15 15: 49 83 e5 fc and $0xfffffffffffffffc,%r13 19: 4c 89 2b mov %r13,(%rbx) 1c: 0f 84 91 05 00 00 je 0x5b3 22: 4c 89 eb mov %r13,%rbx 25: 48 c1 eb 03 shr $0x3,%rbx * 29: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 ef mov %r13,%rdi 33: e8 5e 0b 2b ff call 0xff2b0b96 38: 49 8b 45 00 mov 0x0(%r13),%rax 3c: a8 01 test $0x1,%al 3e: 0f .byte 0xf