loop3: detected capacity change from 0 to 14901 jfs_mount: diMount failed w/rc = -5 ================================================================== BUG: KASAN: slab-use-after-free in diFree+0x1fbb/0x2fb0 fs/jfs/jfs_imap.c:871 Read of size 4 at addr ffff88807ea10004 by task syz-executor.3/24475 CPU: 0 PID: 24475 Comm: syz-executor.3 Not tainted 6.3.0-rc3-syzkaller-00031-g1e760fa3596e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:319 [inline] print_report+0x163/0x540 mm/kasan/report.c:430 kasan_report+0x176/0x1b0 mm/kasan/report.c:536 diFree+0x1fbb/0x2fb0 fs/jfs/jfs_imap.c:871 jfs_evict_inode+0x32d/0x440 fs/jfs/inode.c:156 evict+0x2a4/0x620 fs/inode.c:665 jfs_mount+0x536/0x830 fs/jfs/jfs_mount.c:203 jfs_fill_super+0x59c/0xc50 fs/jfs/super.c:556 mount_bdev+0x271/0x3a0 fs/super.c:1380 legacy_get_tree+0xef/0x190 fs/fs_context.c:610 vfs_get_tree+0x8c/0x270 fs/super.c:1510 do_new_mount+0x28f/0xae0 fs/namespace.c:3042 do_mount fs/namespace.c:3385 [inline] __do_sys_mount fs/namespace.c:3594 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3571 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f83b7a8d62a Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f83b87d6f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000000022ef RCX: 00007f83b7a8d62a RDX: 0000000020005d00 RSI: 0000000020000000 RDI: 00007f83b87d6fe0 RBP: 00007f83b87d7020 R08: 00007f83b87d7020 R09: 0000000000000080 R10: 0000000000000080 R11: 0000000000000202 R12: 0000000020005d00 R13: 0000000020000000 R14: 00007f83b87d6fe0 R15: 0000000020000180 Allocated by task 5113: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4f/0x70 mm/kasan/common.c:52 __kasan_slab_alloc+0x66/0x70 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:186 [inline] slab_post_alloc_hook+0x68/0x3a0 mm/slab.h:769 slab_alloc_node mm/slub.c:3452 [inline] slab_alloc mm/slub.c:3460 [inline] __kmem_cache_alloc_lru mm/slub.c:3467 [inline] kmem_cache_alloc+0x11f/0x2e0 mm/slub.c:3476 mempool_alloc+0x194/0x580 mm/mempool.c:398 bvec_alloc block/bio.c:211 [inline] bio_alloc_bioset+0x3ea/0x13f0 block/bio.c:558 __bio_alloc+0x3d7/0x690 fs/f2fs/data.c:460 f2fs_submit_page_write+0x11c4/0x1680 fs/f2fs/data.c:1018 f2fs_do_write_meta_page+0x2ee/0x6c0 fs/f2fs/segment.c:3410 __f2fs_write_meta_page+0x49c/0xaf0 fs/f2fs/checkpoint.c:335 f2fs_sync_meta_pages+0x557/0xd20 fs/f2fs/checkpoint.c:441 do_checkpoint+0x211/0x3f00 fs/f2fs/checkpoint.c:1470 f2fs_write_checkpoint+0x1511/0x1ce0 fs/f2fs/checkpoint.c:1699 f2fs_issue_checkpoint+0x2e6/0x4d0 fs/f2fs/checkpoint.c:1860 sync_filesystem+0x1c0/0x220 fs/sync.c:66 generic_shutdown_super+0x6f/0x340 fs/super.c:473 kill_block_super+0x7e/0xe0 fs/super.c:1407 kill_f2fs_super+0x303/0x3d0 fs/f2fs/super.c:4635 deactivate_locked_super+0xa4/0x110 fs/super.c:331 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1177 task_work_run+0x24a/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 21: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4f/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:521 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:162 [inline] slab_free_hook mm/slub.c:1781 [inline] slab_free_freelist_hook mm/slub.c:1807 [inline] slab_free mm/slub.c:3787 [inline] kmem_cache_free+0x297/0x520 mm/slub.c:3809 bvec_free block/bio.c:168 [inline] bio_free+0xce/0x1a0 block/bio.c:237 bio_put+0x102/0x7e0 block/bio.c:808 req_bio_endio block/blk-mq.c:795 [inline] blk_update_request+0x4d7/0xfe0 block/blk-mq.c:927 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1054 blk_complete_reqs block/blk-mq.c:1132 [inline] blk_done_softirq+0xfc/0x150 block/blk-mq.c:1137 __do_softirq+0x2ab/0x908 kernel/softirq.c:571 The buggy address belongs to the object at ffff88807ea10000 which belongs to the cache biovec-max of size 4096 The buggy address is located 4 bytes inside of freed 4096-byte region [ffff88807ea10000, ffff88807ea11000) The buggy address belongs to the physical page: page:ffffea0001fa8400 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88807ea16600 pfn:0x7ea10 head:ffffea0001fa8400 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010200 ffff888017a99000 ffffea0001008210 ffffea0001e58810 raw: ffff88807ea16600 0000000000070004 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d2800(GFP_NOWAIT|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 18701, tgid 18699 (syz-executor.2), ts 3133263514895, free_ts 3133261844234 prep_new_page mm/page_alloc.c:2552 [inline] get_page_from_freelist+0x3246/0x33c0 mm/page_alloc.c:4325 __alloc_pages+0x255/0x670 mm/page_alloc.c:5591 alloc_slab_page+0x6a/0x160 mm/slub.c:1851 allocate_slab mm/slub.c:1998 [inline] new_slab+0x84/0x2f0 mm/slub.c:2051 ___slab_alloc+0xa85/0x10a0 mm/slub.c:3193 __slab_alloc mm/slub.c:3292 [inline] __slab_alloc_node mm/slub.c:3345 [inline] slab_alloc_node mm/slub.c:3442 [inline] slab_alloc mm/slub.c:3460 [inline] __kmem_cache_alloc_lru mm/slub.c:3467 [inline] kmem_cache_alloc+0x1b9/0x2e0 mm/slub.c:3476 mempool_alloc+0x194/0x580 mm/mempool.c:398 bvec_alloc block/bio.c:211 [inline] bio_alloc_bioset+0x3ea/0x13f0 block/bio.c:558 bio_alloc include/linux/bio.h:427 [inline] io_submit_init_bio fs/ext4/page-io.c:400 [inline] io_submit_add_bh fs/ext4/page-io.c:424 [inline] ext4_bio_write_page+0x14fe/0x2400 fs/ext4/page-io.c:566 mpage_submit_page+0x18b/0x230 fs/ext4/inode.c:2129 mpage_map_and_submit_buffers fs/ext4/inode.c:2374 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2513 [inline] ext4_do_writepages+0x22bc/0x3d20 fs/ext4/inode.c:2876 ext4_writepages+0x1e5/0x290 fs/ext4/inode.c:2964 do_writepages+0x3a6/0x670 mm/page-writeback.c:2551 filemap_fdatawrite_wbc+0x125/0x180 mm/filemap.c:390 __filemap_fdatawrite_range mm/filemap.c:423 [inline] file_write_and_wait_range+0x20f/0x300 mm/filemap.c:781 ext4_sync_file+0x22a/0xbb0 fs/ext4/fsync.c:151 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1453 [inline] free_pcp_prepare mm/page_alloc.c:1503 [inline] free_unref_page_prepare+0xe2f/0xe70 mm/page_alloc.c:3387 free_unref_page+0x37/0x3f0 mm/page_alloc.c:3482 discard_slab mm/slub.c:2098 [inline] __unfreeze_partials+0x1b1/0x1f0 mm/slub.c:2637 put_cpu_partial+0x116/0x180 mm/slub.c:2713 qlist_free_all+0x22/0x60 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x23/0x70 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:186 [inline] slab_post_alloc_hook+0x68/0x3a0 mm/slab.h:769 slab_alloc_node mm/slub.c:3452 [inline] slab_alloc mm/slub.c:3460 [inline] __kmem_cache_alloc_lru mm/slub.c:3467 [inline] kmem_cache_alloc_lru+0x11f/0x2e0 mm/slub.c:3483 alloc_inode_sb include/linux/fs.h:2686 [inline] sock_alloc_inode+0x28/0xc0 net/socket.c:305 alloc_inode fs/inode.c:260 [inline] new_inode_pseudo+0x65/0x1d0 fs/inode.c:1019 sock_alloc net/socket.c:630 [inline] __sock_create+0x123/0x8d0 net/socket.c:1509 sock_create net/socket.c:1596 [inline] __sys_socket_create net/socket.c:1633 [inline] __sys_socket+0x13a/0x3a0 net/socket.c:1661 __do_sys_socket net/socket.c:1674 [inline] __se_sys_socket net/socket.c:1672 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1672 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Memory state around the buggy address: ffff88807ea0ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88807ea0ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88807ea10000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88807ea10080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88807ea10100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================