ERROR: (device loop0): diWrite: ixpxd invalid ERROR: (device loop0): txCommit: ERROR: (device loop0): diWrite: ixpxd invalid ERROR: (device loop0): txCommit: ERROR: (device loop0): diWrite: ixpxd invalid ERROR: (device loop0): txCommit: ERROR: (device loop0): diWrite: ixpxd invalid ERROR: (device loop0): txCommit: ERROR: (device loop0): diWrite: ixpxd invalid ERROR: (device loop0): txCommit: ERROR: (device loop0): diWrite: ixpxd invalid ERROR: (device loop0): txCommit: ERROR: (device loop0): diWrite: ixpxd invalid ERROR: (device loop0): txCommit: ERROR: (device loop0): diWrite: ixpxd invalid ERROR: (device loop0): txCommit: ERROR: (device loop0): diWrite: ixpxd invalid ERROR: (device loop0): txCommit: ERROR: (device loop0): diWrite: ixpxd invalid ERROR: (device loop0): txCommit: ERROR: (device loop0): diWrite: ixpxd invalid ERROR: (device loop0): txCommit: ERROR: (device loop0): diWrite: ixpxd invalid ERROR: (device loop0): txCommit: ================================================================== BUG: KASAN: slab-use-after-free in drop_metapage fs/jfs/jfs_metapage.c:312 [inline] BUG: KASAN: slab-use-after-free in release_metapage+0x717/0xa60 fs/jfs/jfs_metapage.c:893 Read of size 8 at addr ffff88801fd05408 by task syz.0.0/5317 CPU: 0 UID: 0 PID: 5317 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 drop_metapage fs/jfs/jfs_metapage.c:312 [inline] release_metapage+0x717/0xa60 fs/jfs/jfs_metapage.c:893 write_metapage fs/jfs/jfs_metapage.h:75 [inline] flush_metapage fs/jfs/jfs_metapage.h:81 [inline] ea_write+0x679/0xe20 fs/jfs/xattr.c:280 ea_put fs/jfs/xattr.c:626 [inline] __jfs_setxattr+0x96d/0x1190 fs/jfs/xattr.c:792 __jfs_set_acl fs/jfs/acl.c:83 [inline] jfs_set_acl+0x2c3/0x460 fs/jfs/acl.c:110 set_posix_acl fs/posix_acl.c:960 [inline] vfs_set_acl+0x8a0/0xb50 fs/posix_acl.c:1139 do_set_acl+0xf5/0x190 fs/posix_acl.c:1284 do_setxattr fs/xattr.c:659 [inline] filename_setxattr+0x305/0x630 fs/xattr.c:690 path_setxattrat+0x408/0x450 fs/xattr.c:734 __do_sys_setxattr fs/xattr.c:768 [inline] __se_sys_setxattr fs/xattr.c:764 [inline] __x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:764 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdb7ef9e159 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:00007fdb7fe3bfe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007fdb7f226090 RCX: 00007fdb7ef9e159 RDX: 00002000000003c0 RSI: 0000200000002a40 RDI: 0000200000002a00 RBP: 00007fdb7f03506b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000024 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fdb7f226128 R14: 00007fdb7f226090 R15: 00007ffe71f94318 Allocated by task 5317: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 unpoison_slab_object mm/kasan/common.c:340 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4683 [inline] slab_alloc_node mm/slub.c:4996 [inline] kmem_cache_alloc_noprof+0x2b9/0x600 mm/slub.c:5010 mempool_alloc_noprof+0x1bf/0x300 mm/mempool.c:572 alloc_metapage fs/jfs/jfs_metapage.c:264 [inline] __get_metapage+0x4ed/0xdf0 fs/jfs/jfs_metapage.c:761 ea_write+0x604/0xe20 fs/jfs/xattr.c:256 ea_put fs/jfs/xattr.c:626 [inline] __jfs_setxattr+0x96d/0x1190 fs/jfs/xattr.c:792 __jfs_set_acl fs/jfs/acl.c:83 [inline] jfs_set_acl+0x2c3/0x460 fs/jfs/acl.c:110 set_posix_acl fs/posix_acl.c:960 [inline] vfs_set_acl+0x8a0/0xb50 fs/posix_acl.c:1139 do_set_acl+0xf5/0x190 fs/posix_acl.c:1284 do_setxattr fs/xattr.c:659 [inline] filename_setxattr+0x305/0x630 fs/xattr.c:690 path_setxattrat+0x408/0x450 fs/xattr.c:734 __do_sys_setxattr fs/xattr.c:768 [inline] __se_sys_setxattr fs/xattr.c:764 [inline] __x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:764 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 72: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:253 [inline] __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2748 [inline] slab_free mm/slub.c:6508 [inline] kmem_cache_free+0x182/0x650 mm/slub.c:6635 mempool_free+0xec/0x130 mm/mempool.c:717 free_metapage fs/jfs/jfs_metapage.c:280 [inline] metapage_release_folio+0x462/0x590 fs/jfs/jfs_metapage.c:637 shrink_folio_list+0x233f/0x5250 mm/vmscan.c:1461 evict_folios+0x3055/0x3fb0 mm/vmscan.c:4910 try_to_shrink_lruvec+0xe3b/0x1340 mm/vmscan.c:5076 shrink_one+0x233/0x730 mm/vmscan.c:5117 shrink_many mm/vmscan.c:5180 [inline] lru_gen_shrink_node mm/vmscan.c:5258 [inline] shrink_node+0x35d0/0x3e30 mm/vmscan.c:6247 kswapd_shrink_node mm/vmscan.c:7101 [inline] balance_pgdat mm/vmscan.c:7279 [inline] kswapd+0x185e/0x32c0 mm/vmscan.c:7555 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 The buggy address belongs to the object at ffff88801fd053e0 which belongs to the cache jfs_mp of size 184 The buggy address is located 40 bytes inside of freed 184-byte region [ffff88801fd053e0, ffff88801fd05498) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1fd05 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000000 ffff888031e04000 dead000000000122 0000000000000000 raw: 0000000000000000 0000000200100010 00000000f5000000 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 0xd2800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5317, tgid 5315 (syz.0.0), ts 95660154559 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436 alloc_slab_page mm/slub.c:3347 [inline] allocate_slab+0x7d/0x620 mm/slub.c:3462 new_slab mm/slub.c:3513 [inline] refill_objects+0x2d5/0x350 mm/slub.c:7417 refill_sheaf mm/slub.c:2885 [inline] __pcs_replace_empty_main+0x2c8/0x6c0 mm/slub.c:4774 alloc_from_pcs mm/slub.c:4850 [inline] slab_alloc_node mm/slub.c:4984 [inline] kmem_cache_alloc_noprof+0x399/0x600 mm/slub.c:5010 mempool_alloc_noprof+0x1bf/0x300 mm/mempool.c:572 alloc_metapage fs/jfs/jfs_metapage.c:264 [inline] __get_metapage+0x4ed/0xdf0 fs/jfs/jfs_metapage.c:761 ea_get+0x716/0x1300 fs/jfs/xattr.c:549 __jfs_setxattr+0x106/0x1190 fs/jfs/xattr.c:680 __jfs_set_acl fs/jfs/acl.c:83 [inline] jfs_set_acl+0x2c3/0x460 fs/jfs/acl.c:110 set_posix_acl fs/posix_acl.c:960 [inline] vfs_set_acl+0x8a0/0xb50 fs/posix_acl.c:1139 do_set_acl+0xf5/0x190 fs/posix_acl.c:1284 do_setxattr fs/xattr.c:659 [inline] filename_setxattr+0x305/0x630 fs/xattr.c:690 path_setxattrat+0x408/0x450 fs/xattr.c:734 page last free pid 72 tgid 72 ts 95482731644 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] free_unref_folios+0xdc2/0x14e0 mm/page_alloc.c:3022 shrink_folio_list+0x4a2d/0x5250 mm/vmscan.c:1580 evict_folios+0x3055/0x3fb0 mm/vmscan.c:4910 try_to_shrink_lruvec+0xe3b/0x1340 mm/vmscan.c:5076 shrink_one+0x233/0x730 mm/vmscan.c:5117 shrink_many mm/vmscan.c:5180 [inline] lru_gen_shrink_node mm/vmscan.c:5258 [inline] shrink_node+0x35d0/0x3e30 mm/vmscan.c:6247 kswapd_shrink_node mm/vmscan.c:7101 [inline] balance_pgdat mm/vmscan.c:7279 [inline] kswapd+0x185e/0x32c0 mm/vmscan.c:7555 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Memory state around the buggy address: ffff88801fd05300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88801fd05380: fc fc fc fc fc fc fc fc fc fc fc fc fa fb fb fb >ffff88801fd05400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88801fd05480: fb fb fb fc fc fc fc fc fc fc fc 00 00 00 00 00 ffff88801fd05500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================