------------[ cut here ]------------ WARNING: CPU: 1 PID: 8660 at arch/x86/mm/pat/memtype.c:1019 get_pat_info+0x216/0x270 arch/x86/mm/pat/memtype.c:1019 Modules linked in: __blkdev_driver_ioctl block/ioctl.c:240 [inline] blkdev_ioctl+0x291/0x710 block/ioctl.c:640 CPU: 1 PID: 8660 Comm: syz-executor.3 Not tainted 5.10.246 #1 block_ioctl+0xf9/0x140 fs/block_dev.c:1893 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x19a/0x210 fs/ioctl.c:739 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 RIP: 0010:get_pat_info+0x216/0x270 arch/x86/mm/pat/memtype.c:1019 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fb6c02f68d7 Code: 3c 1c 48 f7 d8 49 39 c4 72 b8 e8 a4 54 02 00 85 c0 78 bd 48 83 c4 08 4c 89 e0 5b 41 5c c3 0f 1f 44 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 Code: c1 ea 03 80 3c 02 00 75 71 49 89 1e eb 8e e8 31 89 2e 00 0f 0b e9 97 fe ff ff 41 bc ea ff ff ff e9 77 ff ff ff e8 1a 89 2e 00 <0f> 0b 41 bc ea ff ff ff e9 65 ff ff ff 4c 89 ff e8 a5 a2 5a 00 e9 RSP: 002b:00007fb6bd86bf48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fb6c0340970 RCX: 00007fb6c02f68d7 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 0000000000000000 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000004 R14: 0000000020000058 R15: 0000000000000001 loop0: detected capacity change from 0 to 2048 RSP: 0018:ffff888044697890 EFLAGS: 00010216 EXT4-fs (loop0): bad geometry: block count 256 exceeds size of device (2 blocks) RAX: 0000000000013aef RBX: ffff88800ecc9e00 RCX: ffffc9000360e000 RDX: 0000000000040000 RSI: ffffffff81124466 RDI: 0000000000000007 RBP: ffff888044697948 R08: 0000000000000000 R09: ffff888044697818 R10: 0000000000000020 R11: 0000000000000001 R12: 0000000000000028 R13: 1ffff110088d2f12 R14: 0000000000000000 R15: ffff88800ecc9e50 FS: 00007f46684dd700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffaf9a41000 CR3: 000000000ea7a000 CR4: 0000000000350ee0 Call Trace: untrack_pfn+0xdc/0x240 arch/x86/mm/pat/memtype.c:1121 unmap_single_vma+0x1bc/0x300 mm/memory.c:1499 zap_page_range_single+0x2ce/0x450 mm/memory.c:1603 remap_pfn_range_notrack mm/memory.c:2363 [inline] remap_pfn_range+0x139/0x160 mm/memory.c:2388 io_uring_mmap+0x398/0x530 io_uring/io_uring.c:9805 call_mmap include/linux/fs.h:2044 [inline] mmap_file+0x5e/0xe0 mm/util.c:1080 __mmap_region mm/mmap.c:1817 [inline] mmap_region+0xc4d/0x1500 mm/mmap.c:2957 do_mmap+0x868/0x1370 mm/mmap.c:1594 vm_mmap_pgoff+0x198/0x1f0 mm/util.c:539 ksys_mmap_pgoff+0x41c/0x560 mm/mmap.c:1645 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f466af67b62 Code: 00 00 00 00 00 0f 1f 00 41 f7 c1 ff 0f 00 00 75 27 55 48 89 fd 53 89 cb 48 85 ff 74 3b 41 89 da 48 89 ef b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 66 5b 5d c3 0f 1f 00 48 c7 c0 bc ff ff ff 64 RSP: 002b:00007f46684dd0f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000008011 RCX: 00007f466af67b62 RDX: 0000000000000003 RSI: 0000000000090140 RDI: 0000000020fff000 RBP: 0000000020fff000 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000008011 R11: 0000000000000206 R12: 0000000020000600 R13: 0000000020fff000 R14: 00000000200005c0 R15: 0000000020fff000 irq event stamp: 1711 hardirqs last enabled at (1721): [] console_unlock+0x92d/0xb40 kernel/printk/printk.c:2567 hardirqs last disabled at (1730): [] console_unlock+0x839/0xb40 kernel/printk/printk.c:2482 softirqs last enabled at (1160): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (1117): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace b1967fb7b42dbf01 ]--- FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8678 Comm: syz-executor.1 Tainted: G W 5.10.246 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x167 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x20 mm/slab_common.c:1200 slab_pre_alloc_hook mm/slab.h:512 [inline] slab_alloc_node mm/slub.c:2826 [inline] slab_alloc mm/slub.c:2909 [inline] kmem_cache_alloc+0x5b/0x310 mm/slub.c:2914 xas_alloc+0x336/0x440 lib/xarray.c:374 xas_create+0x34a/0x10d0 lib/xarray.c:676 xas_store+0x8c/0x1c40 lib/xarray.c:786 __xa_store+0x164/0x2d0 lib/xarray.c:1547 xa_store+0x31/0x50 lib/xarray.c:1578 __io_uring_add_tctx_node+0x1cf/0x520 io_uring/io_uring.c:9611 io_uring_add_tctx_node io_uring/io_uring.c:9635 [inline] io_uring_install_fd io_uring/io_uring.c:10159 [inline] io_uring_create io_uring/io_uring.c:10292 [inline] io_uring_setup+0x1fbb/0x2980 io_uring/io_uring.c:10329 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7ffa83495b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffa80a0b108 EFLAGS: 00000202 ORIG_RAX: 00000000000001a9 RAX: ffffffffffffffda RBX: 00007ffa835a8f60 RCX: 00007ffa83495b19 RDX: 0000000020fff000 RSI: 0000000020000540 RDI: 00000000000028bb RBP: 0000000020000540 R08: 0000000020000600 R09: 0000000020000600 R10: 00000000200005c0 R11: 0000000000000202 R12: 0000000020000600 R13: 0000000020fff000 R14: 00000000200005c0 R15: 0000000020fff000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8690 Comm: syz-executor.0 Tainted: G W 5.10.246 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x167 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x20 mm/slab_common.c:1200 slab_pre_alloc_hook mm/slab.h:512 [inline] slab_alloc_node mm/slub.c:2826 [inline] slab_alloc mm/slub.c:2909 [inline] kmem_cache_alloc+0x5b/0x310 mm/slub.c:2914 radix_tree_node_alloc.constprop.0+0x1e3/0x300 lib/radix-tree.c:251 idr_get_free+0x4b5/0x8f0 lib/radix-tree.c:1503 idr_alloc_u32+0x170/0x2d0 lib/idr.c:46 idr_alloc_cyclic+0x102/0x230 lib/idr.c:125 __kernfs_new_node+0x117/0x860 fs/kernfs/dir.c:641 kernfs_new_node+0x18d/0x250 fs/kernfs/dir.c:711 kernfs_create_dir_ns+0x49/0x160 fs/kernfs/dir.c:1047 internal_create_group+0x793/0xb30 fs/sysfs/group.c:137 loop_sysfs_init drivers/block/loop.c:849 [inline] loop_configure+0x953/0x1410 drivers/block/loop.c:1155 lo_ioctl+0xa57/0x16b0 drivers/block/loop.c:1683 __blkdev_driver_ioctl block/ioctl.c:240 [inline] blkdev_ioctl+0x291/0x710 block/ioctl.c:640 block_ioctl+0xf9/0x140 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x19a/0x210 fs/ioctl.c:739 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fb6c02f68d7 Code: 3c 1c 48 f7 d8 49 39 c4 72 b8 e8 a4 54 02 00 85 c0 78 bd 48 83 c4 08 4c 89 e0 5b 41 5c c3 0f 1f 44 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb6bd86bf48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fb6c0340970 RCX: 00007fb6c02f68d7 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 0000000000000000 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000004 R14: 0000000020000058 R15: 0000000000000001 loop0: detected capacity change from 0 to 2048 EXT4-fs (loop0): bad geometry: block count 256 exceeds size of device (2 blocks)