loop0: detected capacity change from 0 to 512 ======================================================= 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. ======================================================= EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled EXT4-fs error (device loop0): ext4_free_branches:1023: inode #11: comm syz.0.0: invalid indirect mapped block 4294967295 (level 1) loop0: lost file I/O error report for ino 11 type 5 pos 0x0 len 0x0 error -117 EXT4-fs error (device loop0): ext4_free_branches:1023: inode #11: comm syz.0.0: invalid indirect mapped block 4294967295 (level 1) loop0: lost file I/O error report for ino 11 type 5 pos 0x0 len 0x0 error -117 EXT4-fs (loop0): 2 truncates cleaned up EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. loop0: detected capacity change from 512 to 511 ================================================================== BUG: KASAN: out-of-bounds in ext4_xattr_set_entry+0x9c1/0x1e20 fs/ext4/xattr.c:1763 Read of size 18446744073709551600 at addr ffff888055d0f2b8 by task syz.0.0/5329 CPU: 0 UID: 0 PID: 5329 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_address_description+0x55/0x1e0 mm/kasan/report.c:378 print_report+0x58/0x70 mm/kasan/report.c:482 kasan_report+0x117/0x150 mm/kasan/report.c:595 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x264/0x2c0 mm/kasan/generic.c:200 __asan_memmove+0x29/0x70 mm/kasan/shadow.c:94 ext4_xattr_set_entry+0x9c1/0x1e20 fs/ext4/xattr.c:1763 ext4_xattr_ibody_set+0x254/0x6a0 fs/ext4/xattr.c:2275 ext4_destroy_inline_data_nolock+0x23a/0x5e0 fs/ext4/inline.c:472 ext4_convert_inline_data_nolock+0x208/0x990 fs/ext4/inline.c:1123 ext4_convert_inline_data+0x4ce/0x600 fs/ext4/inline.c:1994 ext4_setattr+0xef4/0x1d60 fs/ext4/inode.c:5980 notify_change+0xc1a/0xf40 fs/attr.c:556 do_truncate+0x1c2/0x250 fs/open.c:68 vfs_truncate+0x4b4/0x540 fs/open.c:118 ksys_truncate+0xf3/0x1c0 fs/open.c:142 __do_sys_truncate fs/open.c:154 [inline] __se_sys_truncate fs/open.c:152 [inline] __x64_sys_truncate+0x5b/0x70 fs/open.c:152 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f28cdd9c819 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f28cecc1fe8 EFLAGS: 00000246 ORIG_RAX: 000000000000004c RAX: ffffffffffffffda RBX: 00007f28ce015fa0 RCX: 00007f28cdd9c819 RDX: 0000000000000000 RSI: 0000000000f0ffff RDI: 0000200000000000 RBP: 00007f28cde32c91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f28ce016038 R14: 00007f28ce015fa0 R15: 00007ffc096d38f8 The buggy address belongs to the physical page: page: refcount:2 mapcount:0 mapping:ffff88801cc25938 index:0x2 pfn:0x55d0f memcg:ffff88801c6d0e00 aops:def_blk_aops ino:700000 dentry name(?):"" flags: 0x4fff58000004234(referenced|dirty|lru|workingset|private|node=1|zone=1|lastcpupid=0x7ff) raw: 04fff58000004234 ffff888030448a80 ffff888030448a80 ffff88801cc25938 raw: 0000000000000002 ffff888047c7bcb0 00000002ffffffff ffff88801c6d0e00 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Movable, gfp_mask 0x148c48(GFP_NOFS|__GFP_MOVABLE|__GFP_NOFAIL|__GFP_COMP|__GFP_HARDWALL), pid 5329, tgid 5328 (syz.0.0), ts 92136199289, free_ts 92036342001 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1850 prep_new_page mm/page_alloc.c:1858 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3938 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5218 alloc_pages_mpol+0x235/0x490 mm/mempolicy.c:2490 alloc_frozen_pages_noprof mm/mempolicy.c:2561 [inline] alloc_pages_noprof+0xac/0x2a0 mm/mempolicy.c:2581 folio_alloc_noprof+0x1e/0x30 mm/mempolicy.c:2591 filemap_alloc_folio_noprof+0x111/0x470 mm/filemap.c:1013 __filemap_get_folio_mpol+0x3fc/0xb00 mm/filemap.c:2011 __filemap_get_folio include/linux/pagemap.h:763 [inline] grow_dev_folio fs/buffer.c:947 [inline] grow_buffers fs/buffer.c:1013 [inline] __getblk_slow fs/buffer.c:1031 [inline] bdev_getblk+0x1f6/0x6e0 fs/buffer.c:1351 __getblk include/linux/buffer_head.h:380 [inline] sb_getblk include/linux/buffer_head.h:386 [inline] __ext4_get_inode_loc+0x528/0xfa0 fs/ext4/inode.c:4890 ext4_get_inode_loc+0x81/0xf0 fs/ext4/inode.c:5018 ext4_xattr_ibody_get+0x113/0x4c0 fs/ext4/xattr.c:648 ext4_xattr_get+0x123/0x6a0 fs/ext4/xattr.c:709 __vfs_getxattr+0x3f4/0x430 fs/xattr.c:441 cap_inode_need_killpriv+0x45/0x60 security/commoncap.c:331 security_inode_need_killpriv+0x85/0x240 security/security.c:2186 page last free pid 5302 tgid 5302 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1394 [inline] free_unref_folios+0xcec/0x1480 mm/page_alloc.c:2996 folios_put_refs+0x789/0x8d0 mm/swap.c:1002 folios_put include/linux/mm.h:2144 [inline] folio_batch_move_lru+0x39d/0x430 mm/swap.c:179 lru_add_drain_cpu+0xb8/0x7b0 mm/swap.c:648 lru_add_drain+0x121/0x3e0 mm/swap.c:737 __folio_batch_release+0x48/0x90 mm/swap.c:1059 folio_batch_release include/linux/folio_batch.h:101 [inline] shmem_undo_range+0x52c/0x1660 mm/shmem.c:1149 shmem_truncate_range mm/shmem.c:1277 [inline] shmem_evict_inode+0x289/0xae0 mm/shmem.c:1407 evict+0x61e/0xb10 fs/inode.c:841 __dentry_kill+0x1a2/0x5e0 fs/dcache.c:670 finish_dput+0xc9/0x480 fs/dcache.c:879 end_renaming fs/namei.c:4124 [inline] filename_renameat2+0x61e/0x9c0 fs/namei.c:6174 __do_sys_rename fs/namei.c:6216 [inline] __se_sys_rename+0x55/0x2c0 fs/namei.c:6212 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffff888055d0f180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888055d0f200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888055d0f280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff888055d0f300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888055d0f380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================