el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 read_mapping_page failed! jfs_mount_rw: diMount failed! ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3075 at mm/slab_common.c:923 free_large_kmalloc+0x3c/0x144 mm/slab_common.c:924 Modules linked in: CPU: 0 PID: 3075 Comm: syz-executor279 Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : free_large_kmalloc+0x3c/0x144 mm/slab_common.c:924 lr : kfree+0xb8/0x118 mm/slab_common.c:1001 sp : ffff80000ff2bab0 x29: ffff80000ff2bab0 x28: 0000000000000000 x27: 0000000000000000 x26: ffff0000c0250000 x25: 0000000000000002 x24: ffff0000c79c5800 x23: ffff80000d5a8000 x22: ffff0000ca752750 x21: 0000000040000000 x20: ffff800008d5ab24 x19: fffffc000326ce00 x18: 00000000000000c0 x17: ffff80000dda8198 x16: ffff80000dbe6158 x15: ffff0000c9870000 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000c9870000 x11: ff8080000805b050 x10: 0000000000000000 x9 : fffffc0000000000 x8 : ffff80000d95e000 x7 : ffff800009452fdc x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : ffffffffffffffff x1 : ffff0000c9b38000 x0 : fffffc000326ce00 Call trace: free_large_kmalloc+0x3c/0x144 mm/slab_common.c:924 kfree+0xb8/0x118 mm/slab_common.c:1001 diUnmount+0x74/0x8c fs/jfs/jfs_imap.c:195 jfs_umount+0x94/0x190 fs/jfs/jfs_umount.c:63 jfs_put_super+0x6c/0x104 fs/jfs/super.c:194 generic_shutdown_super+0x94/0x198 fs/super.c:492 kill_block_super+0x30/0x78 fs/super.c:1428 deactivate_locked_super+0x70/0xe8 fs/super.c:332 deactivate_super+0xd0/0xd4 fs/super.c:363 cleanup_mnt+0x184/0x1c0 fs/namespace.c:1186 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193 task_work_run+0x100/0x148 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x2dc/0xcac kernel/exit.c:820 __arm64_sys_exit_group+0x0/0x18 kernel/exit.c:950 __do_sys_exit_group kernel/exit.c:961 [inline] __se_sys_exit_group kernel/exit.c:959 [inline] __wake_up_parent+0x0/0x40 kernel/exit.c:959 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 irq event stamp: 85352 hardirqs last enabled at (85351): [] call_rcu+0x300/0x494 kernel/rcu/tree.c:2833 hardirqs last disabled at (85352): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (84520): [] _stext+0x2e4/0x37c softirqs last disabled at (84471): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 ---[ end trace 0000000000000000 ]--- object pointer: 0x000000002b55211d page:0000000069c4f97b refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109b38 flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000000000 fffffc00032e2008 ffff0001fefd5c20 0000000000000000 raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0) ------------[ cut here ]------------ kernel BUG at include/linux/mm.h:757! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 3075 Comm: syz-executor279 Tainted: G W 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : put_page_testzero include/linux/mm.h:757 [inline] pc : __free_pages+0xc0/0x168 mm/page_alloc.c:5643 lr : put_page_testzero include/linux/mm.h:757 [inline] lr : __free_pages+0xc0/0x168 mm/page_alloc.c:5643 sp : ffff80000ff2ba80 x29: ffff80000ff2ba80 x28: 0000000000000000 x27: 0000000000000000 x26: ffff0000c0250000 x25: 0000000000000002 x24: ffff0000c79c5800 x23: ffff80000d5a8000 x22: 0000000000000000 x21: fffffffffffff000 x20: 0000000000000000 x19: fffffc000326ce00 x18: 00000000000000c0 x17: 3030303030303030 x16: ffff80000dbe6158 x15: ffff0000c9870000 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000c9870000 x11: ff808000081c4d64 x10: 0000000000000000 x9 : 77cac4ef09694000 x8 : 77cac4ef09694000 x7 : ffff80000c091ebc x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000100000000 x0 : 000000000000003e Call trace: put_page_testzero include/linux/mm.h:757 [inline] __free_pages+0xc0/0x168 mm/page_alloc.c:5643 free_large_kmalloc+0xac/0x144 mm/slab_common.c:932 kfree+0xb8/0x118 mm/slab_common.c:1001 diUnmount+0x74/0x8c fs/jfs/jfs_imap.c:195 jfs_umount+0x94/0x190 fs/jfs/jfs_umount.c:63 jfs_put_super+0x6c/0x104 fs/jfs/super.c:194 generic_shutdown_super+0x94/0x198 fs/super.c:492 kill_block_super+0x30/0x78 fs/super.c:1428 deactivate_locked_super+0x70/0xe8 fs/super.c:332 deactivate_super+0xd0/0xd4 fs/super.c:363 cleanup_mnt+0x184/0x1c0 fs/namespace.c:1186 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193 task_work_run+0x100/0x148 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x2dc/0xcac kernel/exit.c:820 __arm64_sys_exit_group+0x0/0x18 kernel/exit.c:950 __do_sys_exit_group kernel/exit.c:961 [inline] __se_sys_exit_group kernel/exit.c:959 [inline] __wake_up_parent+0x0/0x40 kernel/exit.c:959 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 Code: f0023741 9139f021 aa1303e0 97fe8865 (d4210000) ---[ end trace 0000000000000000 ]---