BUG: unable to handle page fault for address: ffffed180000001a #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: 346 Comm: syz-executor.0 Tainted: G W 5.15.148-syzkaller-1069047-g993bed180178 #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_insert lib/rbtree.c:180 [inline] RIP: 0010:__rb_insert_augmented+0x36b/0x610 lib/rbtree.c:459 Code: 49 89 5d 00 48 83 e3 fc 43 80 3c 26 00 74 08 4c 89 ff e8 18 09 2b ff 4d 89 2f 48 85 db 74 2a 4c 8d 73 10 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 f7 e8 56 08 2b ff 48 8d 43 08 4c 39 7b RSP: 0018:ffffc90000cd78f8 EFLAGS: 00010a02 RAX: 1ffff1180000001a RBX: ffff88c0000000c0 RCX: dffffc0000000000 RDX: ffffffff81a4f280 RSI: ffff88811023b7e0 RDI: ffff88811ebbc2a8 RBP: ffffc90000cd7960 R08: dffffc0000000000 R09: ffff88811ebbc2b0 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff888107bfc748 R14: ffff88c0000000d0 R15: ffff88811f4d3180 FS: 00005555569e7480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000001a CR3: 0000000120666000 CR4: 00000000003506b0 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: 0033:0x7f4937778a13 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:00007ffc224c8588 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4937778a13 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00005555569e7750 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 Modules linked in: CR2: ffffed180000001a ---[ end trace e61df22c5dd9067f ]--- 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_insert lib/rbtree.c:180 [inline] RIP: 0010:__rb_insert_augmented+0x36b/0x610 lib/rbtree.c:459 Code: 49 89 5d 00 48 83 e3 fc 43 80 3c 26 00 74 08 4c 89 ff e8 18 09 2b ff 4d 89 2f 48 85 db 74 2a 4c 8d 73 10 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 f7 e8 56 08 2b ff 48 8d 43 08 4c 39 7b RSP: 0018:ffffc90000cd78f8 EFLAGS: 00010a02 RAX: 1ffff1180000001a RBX: ffff88c0000000c0 RCX: dffffc0000000000 RDX: ffffffff81a4f280 RSI: ffff88811023b7e0 RDI: ffff88811ebbc2a8 RBP: ffffc90000cd7960 R08: dffffc0000000000 R09: ffff88811ebbc2b0 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff888107bfc748 R14: ffff88c0000000d0 R15: ffff88811f4d3180 FS: 00005555569e7480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed180000001a CR3: 0000000120666000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 49 89 5d 00 mov %rbx,0x0(%r13) 4: 48 83 e3 fc and $0xfffffffffffffffc,%rbx 8: 43 80 3c 26 00 cmpb $0x0,(%r14,%r12,1) d: 74 08 je 0x17 f: 4c 89 ff mov %r15,%rdi 12: e8 18 09 2b ff call 0xff2b092f 17: 4d 89 2f mov %r13,(%r15) 1a: 48 85 db test %rbx,%rbx 1d: 74 2a je 0x49 1f: 4c 8d 73 10 lea 0x10(%rbx),%r14 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 f7 mov %r14,%rdi 34: e8 56 08 2b ff call 0xff2b088f 39: 48 8d 43 08 lea 0x8(%rbx),%rax 3d: 4c rex.WR 3e: 39 .byte 0x39 3f: 7b .byte 0x7b