Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 UID: 0 PID: 5226 Comm: udevd Not tainted 6.11.0-rc5-next-20240827-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:____rb_erase_color lib/rbtree.c:354 [inline] RIP: 0010:__rb_erase_color+0x2d7/0xa30 lib/rbtree.c:413 Code: 73 02 00 00 49 8d 5c 24 10 48 89 dd 48 c1 ed 03 42 80 7c 35 00 00 74 08 48 89 df e8 a3 6a 44 f6 4c 8b 2b 4d 89 ef 49 c1 ef 03 <43> 80 3c 37 00 74 08 4c 89 ef e8 8a 6a 44 f6 41 f6 45 00 01 48 89 RSP: 0018:ffffc9000358f320 EFLAGS: 00010046 RAX: 000000000016e360 RBX: ffff888055df0c20 RCX: dffffc0000000000 RDX: ffffffff81680de0 RSI: ffff8880b913ebc8 RDI: ffff888055df0c10 RBP: 1ffff1100abbe184 R08: 0000000000000234 R09: 0000000000000000 R10: ffff8880281bbc98 R11: ffffffff81671a60 R12: ffff888055df0c10 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007fc2ada93c80(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3281bff8 CR3: 0000000028dd2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rb_erase_augmented include/linux/rbtree_augmented.h:331 [inline] rb_erase_augmented_cached include/linux/rbtree_augmented.h:340 [inline] __dequeue_entity+0x953/0xd30 kernel/sched/fair.c:863 set_next_entity+0xfe/0x4c0 kernel/sched/fair.c:5559 set_next_task_fair+0x1dd/0x540 kernel/sched/fair.c:13151 set_next_task kernel/sched/sched.h:2434 [inline] pick_next_task kernel/sched/core.c:6085 [inline] __schedule+0x250c/0x4b30 kernel/sched/core.c:6632 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6999 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707 RIP: 0010:memset_orig+0x3a/0xb0 arch/x86/lib/memset_64.S:69 Code: 01 01 01 01 01 48 0f af c1 41 89 f9 41 83 e1 07 75 70 48 89 d1 48 c1 e9 06 74 35 0f 1f 44 00 00 48 ff c9 48 89 07 48 89 47 08 <48> 89 47 10 48 89 47 18 48 89 47 20 48 89 47 28 48 89 47 30 48 89 RSP: 0018:ffffc9000358f858 EFLAGS: 00000206 RAX: 0000000000000000 RBX: ffff88805ddb8000 RCX: 0000000000000009 RDX: 0000000000001000 RSI: 0000000000000000 RDI: ffff88805ddb8d80 RBP: 0000000000001000 R08: ffffffff937b783f R09: 0000000000000000 R10: ffff88805ddb8000 R11: fffffbfff26f6f08 R12: 0000000000000c40 R13: ffff888015842140 R14: ffffffff846cefcf R15: 0000000000001000 slab_post_alloc_hook mm/slub.c:4043 [inline] slab_alloc_node mm/slub.c:4089 [inline] __do_kmalloc_node mm/slub.c:4209 [inline] __kmalloc_noprof+0x1ca/0x400 mm/slub.c:4222 kmalloc_noprof include/linux/slab.h:685 [inline] tomoyo_realpath_from_path+0xcf/0x5e0 security/tomoyo/realpath.c:251 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x2b7/0x740 security/tomoyo/file.c:822 security_inode_getattr+0x130/0x330 security/security.c:2371 vfs_getattr+0x45/0x430 fs/stat.c:242 vfs_statx_path fs/stat.c:289 [inline] vfs_statx+0x199/0x490 fs/stat.c:353 vfs_fstatat+0x145/0x190 fs/stat.c:379 __do_sys_newfstatat fs/stat.c:543 [inline] __se_sys_newfstatat fs/stat.c:537 [inline] __x64_sys_newfstatat+0x11d/0x1a0 fs/stat.c:537 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc2ad7165f4 Code: 64 c7 00 09 00 00 00 83 c8 ff c3 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 00 00 00 00 41 89 ca b8 06 01 00 00 0f 05 <45> 31 c0 3d 00 f0 ff ff 76 10 48 8b 15 03 a8 0d 00 f7 d8 41 83 c8 RSP: 002b:00007fffb3feb098 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 000000000000000f RCX: 00007fc2ad7165f4 RDX: 00007fffb3feb0a8 RSI: 00007fffb3feb177 RDI: 00000000ffffff9c RBP: 00007fffb3fec1b0 R08: 0000000000000000 R09: 00007fffb3febb38 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb3fec1c8 R13: 0000000000000000 R14: 0000000000000008 R15: 000055c74b228910 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:____rb_erase_color lib/rbtree.c:354 [inline] RIP: 0010:__rb_erase_color+0x2d7/0xa30 lib/rbtree.c:413 Code: 73 02 00 00 49 8d 5c 24 10 48 89 dd 48 c1 ed 03 42 80 7c 35 00 00 74 08 48 89 df e8 a3 6a 44 f6 4c 8b 2b 4d 89 ef 49 c1 ef 03 <43> 80 3c 37 00 74 08 4c 89 ef e8 8a 6a 44 f6 41 f6 45 00 01 48 89 RSP: 0018:ffffc9000358f320 EFLAGS: 00010046 RAX: 000000000016e360 RBX: ffff888055df0c20 RCX: dffffc0000000000 RDX: ffffffff81680de0 RSI: ffff8880b913ebc8 RDI: ffff888055df0c10 RBP: 1ffff1100abbe184 R08: 0000000000000234 R09: 0000000000000000 R10: ffff8880281bbc98 R11: ffffffff81671a60 R12: ffff888055df0c10 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007fc2ada93c80(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3281bff8 CR3: 0000000028dd2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 73 02 jae 0x4 2: 00 00 add %al,(%rax) 4: 49 8d 5c 24 10 lea 0x10(%r12),%rbx 9: 48 89 dd mov %rbx,%rbp c: 48 c1 ed 03 shr $0x3,%rbp 10: 42 80 7c 35 00 00 cmpb $0x0,0x0(%rbp,%r14,1) 16: 74 08 je 0x20 18: 48 89 df mov %rbx,%rdi 1b: e8 a3 6a 44 f6 call 0xf6446ac3 20: 4c 8b 2b mov (%rbx),%r13 23: 4d 89 ef mov %r13,%r15 26: 49 c1 ef 03 shr $0x3,%r15 * 2a: 43 80 3c 37 00 cmpb $0x0,(%r15,%r14,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 ef mov %r13,%rdi 34: e8 8a 6a 44 f6 call 0xf6446ac3 39: 41 f6 45 00 01 testb $0x1,0x0(%r13) 3e: 48 rex.W 3f: 89 .byte 0x89