loop0: detected capacity change from 0 to 128 ufs: You didn't specify the type of your ufs filesystem mount -t ufs -o ufstype=sun|sunx86|44bsd|ufs2|5xbsd|old|hp|nextstep|nextstep-cd|openstep ... >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default is ufstype=old ufs: ufs_fill_super(): fragment size 2066844866 is not a power of 2 loop0: detected capacity change from 0 to 4096 nilfs2: Unknown parameter 'ÁÍÜ"Á-Ü*ÁÜ&ÁmÜ.ÁíÜ!ÁÜ)ÁťÜ%Á]Ü-ÁÝÜ#Á' loop0: detected capacity change from 0 to 32768 gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" gfs2: fsid=syz:syz: Now mounting FS (format 1801)... gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms gfs2: fsid=syz:syz.0: first mount done, others may mount loop0: detected capacity change from 32768 to 0 syz.0.0: attempt to access beyond end of device loop0: rw=1, sector=2972, nr_sectors = 20 limit=0 gfs2: fsid=syz:syz.0: Error 10 writing to journal, jid=0 ================================================================== BUG: KASAN: slab-use-after-free in list_empty include/linux/list.h:373 [inline] BUG: KASAN: slab-use-after-free in gfs2_discard fs/gfs2/aops.c:587 [inline] BUG: KASAN: slab-use-after-free in gfs2_invalidate_folio+0x448/0x740 fs/gfs2/aops.c:625 Read of size 8 at addr ffff888053068168 by task syz.0.0/5318 CPU: 0 UID: 0 PID: 5318 Comm: syz.0.0 Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #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 list_empty include/linux/list.h:373 [inline] gfs2_discard fs/gfs2/aops.c:587 [inline] gfs2_invalidate_folio+0x448/0x740 fs/gfs2/aops.c:625 folio_invalidate mm/truncate.c:126 [inline] truncate_cleanup_folio+0x203/0x300 mm/truncate.c:146 truncate_inode_pages_range+0x2e5/0x10e0 mm/truncate.c:326 gfs2_evict_inode+0x442/0x13c0 fs/gfs2/super.c:1527 evict+0x4e8/0x9a0 fs/inode.c:796 gfs2_put_super+0x43a/0x940 fs/gfs2/super.c:629 generic_shutdown_super+0x139/0x2d0 fs/super.c:642 kill_block_super+0x44/0x90 fs/super.c:1710 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373 task_work_run+0x24f/0x310 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0ea8985d29 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:00007f0ea9840038 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007f0ea8b75fa0 RCX: 00007f0ea8985d29 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000006 RBP: 00007f0ea8a01b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0ea8b75fa0 R15: 00007ffe67ed6b58 Allocated by task 5318: 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 gfs2_alloc_bufdata fs/gfs2/trans.c:168 [inline] gfs2_trans_add_data+0x1f5/0x5f0 fs/gfs2/trans.c:209 gfs2_unstuffer_folio fs/gfs2/bmap.c:81 [inline] __gfs2_unstuff_inode fs/gfs2/bmap.c:119 [inline] gfs2_unstuff_dinode+0x1061/0x1460 fs/gfs2/bmap.c:166 gfs2_adjust_quota+0x2c2/0x960 fs/gfs2/quota.c:849 gfs2_set_dqblk+0x991/0xc80 fs/gfs2/quota.c:1788 quota_setquota+0x6dc/0x850 fs/quota/quota.c:310 __do_sys_quotactl fs/quota/quota.c:961 [inline] __se_sys_quotactl+0x2c4/0xa30 fs/quota/quota.c:917 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 Freed by task 5318: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:582 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2353 [inline] slab_free mm/slub.c:4613 [inline] kmem_cache_free+0x195/0x410 mm/slub.c:4715 trans_drain fs/gfs2/log.c:1020 [inline] gfs2_log_flush+0x19ec/0x2610 fs/gfs2/log.c:1160 gfs2_kill_sb+0x5b/0x350 fs/gfs2/ops_fstype.c:1775 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373 task_work_run+0x24f/0x310 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888053068150 which belongs to the cache gfs2_bufdata of size 80 The buggy address is located 24 bytes inside of freed 80-byte region [ffff888053068150, ffff8880530681a0) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x53068 flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 04fff00000000000 ffff8880336ac140 dead000000000122 0000000000000000 raw: 0000000000000000 0000000080240024 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 5318, tgid 5317 (syz.0.0), ts 59355111421, free_ts 0 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 gfs2_alloc_bufdata fs/gfs2/trans.c:168 [inline] gfs2_trans_add_meta+0x323/0xb40 fs/gfs2/trans.c:251 gfs2_alloc_extent fs/gfs2/rgrp.c:2237 [inline] gfs2_alloc_blocks+0xb21/0x2900 fs/gfs2/rgrp.c:2447 __gfs2_unstuff_inode fs/gfs2/bmap.c:107 [inline] gfs2_unstuff_dinode+0x2c3/0x1460 fs/gfs2/bmap.c:166 gfs2_adjust_quota+0x2c2/0x960 fs/gfs2/quota.c:849 gfs2_set_dqblk+0x991/0xc80 fs/gfs2/quota.c:1788 quota_setquota+0x6dc/0x850 fs/quota/quota.c:310 __do_sys_quotactl fs/quota/quota.c:961 [inline] __se_sys_quotactl+0x2c4/0xa30 fs/quota/quota.c:917 page_owner free stack trace missing Memory state around the buggy address: ffff888053068000: fa fb fb fb fb fb fb fb fb fb fc fc fc fc fa fb ffff888053068080: fb fb fb fb fb fb fb fb fc fc fc fc fa fb fb fb >ffff888053068100: fb fb fb fb fb fb fc fc fc fc fa fb fb fb fb fb ^ ffff888053068180: fb fb fb fb fc fc fc fc fa fb fb fb fb fb fb fb ffff888053068200: fb fb fc fc fc fc fa fb fb fb fb fb fb fb fb fb ==================================================================