BUG: unable to handle page fault for address: ffffea0003ffff88 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 13fff8067 P4D 13fff8067 PUD 13fff7067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8465 Comm: systemd-cgroups Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:compound_head include/linux/page-flags.h:184 [inline] RIP: 0010:virt_to_head_page include/linux/mm.h:899 [inline] RIP: 0010:qlink_to_cache mm/kasan/quarantine.c:120 [inline] RIP: 0010:qlist_free_all+0x85/0xc0 mm/kasan/quarantine.c:162 Code: 85 ff 74 3b 4c 89 fe 48 85 ed 48 89 ef 75 cb 48 89 f7 48 89 34 24 e8 4a 2e 7a ff 48 8b 34 24 48 c1 e8 0c 48 c1 e0 06 4c 01 f0 <48> 8b 50 08 48 8d 4a ff 83 e2 01 48 0f 45 c1 48 8b 78 18 eb 9b 49 RSP: 0018:ffffc9000171fa20 EFLAGS: 00010282 RAX: ffffea0003ffff80 RBX: ffff88802fee2000 RCX: 0000000000000000 RDX: ffff888025e2b900 RSI: ffff8880ffffea00 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000002e R10: ffffffff81342fea R11: 000000000000003f R12: dffffc0000000000 R13: ffffc9000171fa58 R14: ffffea0000000000 R15: ffff8880ffffea00 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffea0003ffff88 CR3: 000000002d52d000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272 __kasan_slab_alloc+0x8e/0xa0 mm/kasan/common.c:438 kasan_slab_alloc include/linux/kasan.h:236 [inline] slab_post_alloc_hook mm/slab.h:527 [inline] slab_alloc_node mm/slub.c:2924 [inline] slab_alloc mm/slub.c:2932 [inline] __kmalloc+0x1f7/0x330 mm/slub.c:4083 kmalloc include/linux/slab.h:563 [inline] tomoyo_realpath_from_path+0xc3/0x620 security/tomoyo/realpath.c:254 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x21b/0x400 security/tomoyo/file.c:822 security_inode_getattr+0xcf/0x140 security/security.c:1332 vfs_getattr fs/stat.c:139 [inline] vfs_fstat+0x43/0xb0 fs/stat.c:164 __do_sys_newfstat+0x81/0x100 fs/stat.c:404 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fdd77c3f142 Code: b8 ff ff ff ff c3 66 90 c7 05 f6 bf 20 00 16 00 00 00 b8 ff ff ff ff c3 83 ff 01 77 2b 48 63 fe b8 05 00 00 00 48 89 d6 0f 05 <48> 3d 00 f0 ff ff 77 06 f3 c3 0f 1f 40 00 f7 d8 89 05 c8 bf 20 00 RSP: 002b:00007ffec5596688 EFLAGS: 00000246 ORIG_RAX: 0000000000000005 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdd77c3f142 RDX: 00007ffec5596710 RSI: 00007ffec5596710 RDI: 0000000000000000 RBP: 00007ffec55967d0 R08: 00007fdd77e43398 R09: 00007fdd77e47000 R10: 00007ffec5596870 R11: 0000000000000246 R12: 00007fdd77e47000 R13: 0000000000000000 R14: 00007fdd77e4a040 R15: 00007ffec5596870 Modules linked in: CR2: ffffea0003ffff88 ---[ end trace 636e80c2dddb3044 ]--- RIP: 0010:compound_head include/linux/page-flags.h:184 [inline] RIP: 0010:virt_to_head_page include/linux/mm.h:899 [inline] RIP: 0010:qlink_to_cache mm/kasan/quarantine.c:120 [inline] RIP: 0010:qlist_free_all+0x85/0xc0 mm/kasan/quarantine.c:162 Code: 85 ff 74 3b 4c 89 fe 48 85 ed 48 89 ef 75 cb 48 89 f7 48 89 34 24 e8 4a 2e 7a ff 48 8b 34 24 48 c1 e8 0c 48 c1 e0 06 4c 01 f0 <48> 8b 50 08 48 8d 4a ff 83 e2 01 48 0f 45 c1 48 8b 78 18 eb 9b 49 RSP: 0018:ffffc9000171fa20 EFLAGS: 00010282 RAX: ffffea0003ffff80 RBX: ffff88802fee2000 RCX: 0000000000000000 RDX: ffff888025e2b900 RSI: ffff8880ffffea00 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000002e R10: ffffffff81342fea R11: 000000000000003f R12: dffffc0000000000 R13: ffffc9000171fa58 R14: ffffea0000000000 R15: ffff8880ffffea00 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffea0003ffff88 CR3: 000000002d52d000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400