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: 1 PID: 8469 Comm: systemd-udevd 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:ffffc900016dfd20 EFLAGS: 00010282 RAX: ffffea0003ffff80 RBX: ffff888031ac7128 RCX: 0000000000000000 RDX: ffff88801609d580 RSI: ffff8880ffffea00 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000002e R10: ffffffff81342fea R11: 000000000000003f R12: dffffc0000000000 R13: ffffc900016dfd58 R14: ffffea0000000000 R15: ffff8880ffffea00 FS: 00007f93b02118c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffea0003ffff88 CR3: 0000000013474000 CR4: 00000000001506e0 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] kmem_cache_alloc+0x152/0x3a0 mm/slub.c:2937 alloc_inode+0x161/0x230 fs/inode.c:235 new_inode_pseudo+0x14/0xe0 fs/inode.c:927 get_pipe_inode fs/pipe.c:855 [inline] create_pipe_files+0x4d/0x880 fs/pipe.c:895 __do_pipe_flags fs/pipe.c:944 [inline] do_pipe2+0x96/0x1b0 fs/pipe.c:992 __do_sys_pipe2 fs/pipe.c:1010 [inline] __se_sys_pipe2 fs/pipe.c:1008 [inline] __x64_sys_pipe2+0x50/0x70 fs/pipe.c:1008 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f93af084047 Code: 73 01 c3 48 8b 0d 51 ce 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 25 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 21 ce 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fffb66870d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000125 RAX: ffffffffffffffda RBX: 0000556c55d67db0 RCX: 00007f93af084047 RDX: 0000000003938700 RSI: 0000000000000800 RDI: 00007fffb6687198 RBP: 00007fffb6688bf0 R08: 00007fffb6688bf0 R09: 0000000000000000 R10: 0000556c55d66160 R11: 0000000000000202 R12: 0000556c55d66160 R13: 000000000aba9500 R14: 000000000000000b R15: 00007fffb6688bf0 Modules linked in: CR2: ffffea0003ffff88 ---[ end trace ae3187e68290ffeb ]--- 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:ffffc900016dfd20 EFLAGS: 00010282 RAX: ffffea0003ffff80 RBX: ffff888031ac7128 RCX: 0000000000000000 RDX: ffff88801609d580 RSI: ffff8880ffffea00 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000002e R10: ffffffff81342fea R11: 000000000000003f R12: dffffc0000000000 R13: ffffc900016dfd58 R14: ffffea0000000000 R15: ffff8880ffffea00 FS: 00007f93b02118c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffea0003ffff88 CR3: 0000000013474000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400