blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map ================================================================== BUG: KASAN: slab-use-after-free in jfs_lazycommit+0x65c/0x9a8 fs/jfs/jfs_txnmgr.c:2736 Read of size 4 at addr ffff0000d70ce494 by task jfsCommit/97 CPU: 1 PID: 97 Comm: jfsCommit Not tainted 6.9.0-rc4-syzkaller-g6a71d2909427 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:317 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0x198/0x538 mm/kasan/report.c:488 kasan_report+0xd8/0x138 mm/kasan/report.c:601 __asan_report_load4_noabort+0x20/0x2c mm/kasan/report_generic.c:380 jfs_lazycommit+0x65c/0x9a8 fs/jfs/jfs_txnmgr.c:2736 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 Allocated by task 6302: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x40/0x78 mm/kasan/common.c:68 kasan_save_alloc_info+0x40/0x50 mm/kasan/generic.c:565 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0xac/0xc4 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] kmalloc_trace+0x264/0x3f0 mm/slub.c:3997 kmalloc include/linux/slab.h:628 [inline] kzalloc include/linux/slab.h:749 [inline] jfs_fill_super+0x108/0x9f0 fs/jfs/super.c:495 mount_bdev+0x1d4/0x2a0 fs/super.c:1658 jfs_do_mount+0x44/0x58 fs/jfs/super.c:670 legacy_get_tree+0xd4/0x16c fs/fs_context.c:662 vfs_get_tree+0x90/0x288 fs/super.c:1779 do_new_mount+0x278/0x900 fs/namespace.c:3352 path_mount+0x590/0xe04 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3875 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Freed by task 6237: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x40/0x78 mm/kasan/common.c:68 kasan_save_free_info+0x54/0x6c mm/kasan/generic.c:579 poison_slab_object+0x124/0x18c mm/kasan/common.c:240 __kasan_slab_free+0x3c/0x70 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2106 [inline] slab_free mm/slub.c:4280 [inline] kfree+0x150/0x3e8 mm/slub.c:4390 jfs_put_super+0x144/0x188 fs/jfs/super.c:203 generic_shutdown_super+0x128/0x2b8 fs/super.c:641 kill_block_super+0x44/0x90 fs/super.c:1675 deactivate_locked_super+0xc4/0x12c fs/super.c:472 deactivate_super+0xe0/0x100 fs/super.c:505 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1267 __cleanup_mnt+0x20/0x30 fs/namespace.c:1274 task_work_run+0x230/0x2e0 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:713 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 The buggy address belongs to the object at ffff0000d70ce400 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 148 bytes inside of freed 256-byte region [ffff0000d70ce400, ffff0000d70ce500) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1170ce head: order:1 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0x5ffe00000000840(slab|head|node=0|zone=2|lastcpupid=0xfff) page_type: 0xffffffff() raw: 05ffe00000000840 ffff0000c0001b40 fffffdffc362d500 0000000000000005 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 head: 05ffe00000000840 ffff0000c0001b40 fffffdffc362d500 0000000000000005 head: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 head: 05ffe00000000001 fffffdffc35c3381 fffffdffc35c33c8 00000000ffffffff head: 0000000200000000 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000d70ce380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d70ce400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff0000d70ce480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000d70ce500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d70ce580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== blkno = 5002c, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop3): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop0): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop2): dbUpdatePMap: blocks are outside the map blkno = 5002c, nblocks = 1 ERROR: (device loop1): dbUpdatePMap: blocks are outside the map blkno = 5002d, nblocks = 1 ERROR: (device loop4): dbUpdatePMap: blocks are outside the map