loop0: detected capacity change from 0 to 32768 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ocfs2: Slot 0 on device (7,0) was already allocated to this node! ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. ================================================================== BUG: KASAN: slab-out-of-bounds in ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1445 [inline] BUG: KASAN: slab-out-of-bounds in ocfs2_claim_suballoc_bits+0x1099/0x2560 fs/ocfs2/suballoc.c:1982 Read of size 4 at addr ffff88803e08d050 by task syz.0.0/5315 CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0x169/0x550 mm/kasan/report.c:489 kasan_report+0x143/0x180 mm/kasan/report.c:602 ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1445 [inline] ocfs2_claim_suballoc_bits+0x1099/0x2560 fs/ocfs2/suballoc.c:1982 ocfs2_claim_new_inode+0x338/0x870 fs/ocfs2/suballoc.c:2267 ocfs2_mknod_locked+0x17a/0x3b0 fs/ocfs2/namei.c:635 ocfs2_mknod+0x17d4/0x2b30 fs/ocfs2/namei.c:381 ocfs2_create+0x1ab/0x470 fs/ocfs2/namei.c:674 vfs_create+0x23c/0x3d0 fs/namei.c:3348 do_mknodat+0x447/0x5b0 fs/namei.c:4239 __do_sys_mknod fs/namei.c:4272 [inline] __se_sys_mknod fs/namei.c:4270 [inline] __x64_sys_mknod+0x8c/0xa0 fs/namei.c:4270 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: 0033:0x7f3a20b85d29 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3a21986038 EFLAGS: 00000246 ORIG_RAX: 0000000000000085 RAX: ffffffffffffffda RBX: 00007f3a20d75fa0 RCX: 00007f3a20b85d29 RDX: 0000000000000701 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 00007f3a20c01b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f3a20d75fa0 R15: 00007ffea910cdc8 Allocated by task 4733: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4119 [inline] slab_alloc_node mm/slub.c:4168 [inline] kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4175 lsm_inode_alloc security/security.c:755 [inline] security_inode_alloc+0x37/0x310 security/security.c:1691 inode_init_always_gfp+0xa0f/0xd90 fs/inode.c:306 inode_init_always include/linux/fs.h:3121 [inline] alloc_inode+0x9f/0x1a0 fs/inode.c:343 iget_locked+0xf1/0x5a0 fs/inode.c:1487 kernfs_get_inode+0x51/0x760 fs/kernfs/inode.c:251 kernfs_iop_lookup+0x266/0x390 fs/kernfs/dir.c:1214 lookup_open fs/namei.c:3627 [inline] open_last_lookups fs/namei.c:3748 [inline] path_openat+0x11a7/0x3590 fs/namei.c:3984 do_filp_open+0x27f/0x4e0 fs/namei.c:4014 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_openat fs/open.c:1433 [inline] __se_sys_openat fs/open.c:1428 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1428 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 The buggy address belongs to the object at ffff88803e08d000 which belongs to the cache lsm_inode_cache of size 80 The buggy address is located 0 bytes to the right of allocated 80-byte region [ffff88803e08d000, ffff88803e08d050) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3e08d flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 04fff00000000000 ffff88801be913c0 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000240024 00000001f5000000 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 4733, tgid 4733 (udevd), ts 25089883197, free_ts 25089656532 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1558 prep_new_page mm/page_alloc.c:1566 [inline] get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3476 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4753 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2269 alloc_slab_page+0x6a/0x110 mm/slub.c:2423 allocate_slab+0x5a/0x2b0 mm/slub.c:2589 new_slab mm/slub.c:2642 [inline] ___slab_alloc+0xc27/0x14a0 mm/slub.c:3830 __slab_alloc+0x58/0xa0 mm/slub.c:3920 __slab_alloc_node mm/slub.c:3995 [inline] slab_alloc_node mm/slub.c:4156 [inline] kmem_cache_alloc_noprof+0x268/0x380 mm/slub.c:4175 lsm_inode_alloc security/security.c:755 [inline] security_inode_alloc+0x37/0x310 security/security.c:1691 inode_init_always_gfp+0xa0f/0xd90 fs/inode.c:306 inode_init_always include/linux/fs.h:3121 [inline] alloc_inode+0x9f/0x1a0 fs/inode.c:343 iget_locked+0xf1/0x5a0 fs/inode.c:1487 kernfs_get_inode+0x51/0x760 fs/kernfs/inode.c:251 kernfs_iop_lookup+0x266/0x390 fs/kernfs/dir.c:1214 lookup_open fs/namei.c:3627 [inline] open_last_lookups fs/namei.c:3748 [inline] path_openat+0x11a7/0x3590 fs/namei.c:3984 page last free pid 4733 tgid 4733 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xd3f/0x1010 mm/page_alloc.c:2659 bio_free_pages+0x195/0x250 block/bio.c:1472 bio_copy_kern_endio block/blk-map.c:444 [inline] bio_copy_kern_endio_read+0x2a9/0x2f0 block/blk-map.c:460 blk_update_request+0x5e5/0x1160 block/blk-mq.c:981 scsi_end_request+0x80/0x880 drivers/scsi/scsi_lib.c:631 scsi_io_completion+0x1bd/0x430 drivers/scsi/scsi_lib.c:1067 atapi_qc_complete+0x323/0x690 ata_qc_complete_multiple+0x1a3/0x280 drivers/ata/libata-sata.c:789 ahci_qc_complete drivers/ata/libahci.c:1881 [inline] ahci_handle_port_interrupt+0x422/0x650 drivers/ata/libahci.c:1948 ahci_port_intr drivers/ata/libahci.c:1959 [inline] ahci_handle_port_intr+0x18e/0x2c0 drivers/ata/libahci.c:1990 ahci_single_level_irq_intr+0xa1/0xf0 drivers/ata/libahci.c:2024 __handle_irq_event_percpu+0x29a/0xa60 kernel/irq/handle.c:158 handle_irq_event_percpu kernel/irq/handle.c:193 [inline] handle_irq_event+0x89/0x1f0 kernel/irq/handle.c:210 handle_edge_irq+0x25f/0xc20 kernel/irq/chip.c:831 generic_handle_irq_desc include/linux/irqdesc.h:173 [inline] handle_irq arch/x86/kernel/irq.c:247 [inline] call_irq_handler arch/x86/kernel/irq.c:259 [inline] __common_interrupt+0x136/0x230 arch/x86/kernel/irq.c:285 common_interrupt+0xb4/0xd0 arch/x86/kernel/irq.c:278 Memory state around the buggy address: ffff88803e08cf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88803e08cf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88803e08d000: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc 00 00 ^ ffff88803e08d080: 00 00 00 00 00 00 00 00 fc fc fc fc 00 00 00 00 ffff88803e08d100: 00 00 00 00 00 00 fc fc fc fc 00 00 00 00 00 00 ==================================================================