Unable to handle kernel paging request at virtual address dfff8000000000bd Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 [dfff8000000000bd] address between user and kernel address ranges Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 4047 Comm: syz-executor Not tainted 5.15.188-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : blkg_tryget_closest block/blk-cgroup.c:1842 [inline] pc : bio_associate_blkg_from_css+0x274/0x858 block/blk-cgroup.c:1876 lr : rcu_read_lock include/linux/rcupdate.h:740 [inline] lr : blkg_tryget_closest block/blk-cgroup.c:1840 [inline] lr : bio_associate_blkg_from_css+0xb8/0x858 block/blk-cgroup.c:1876 sp : ffff80001f1c76a0 x29: ffff80001f1c76e0 x28: ffff0000d5c1a110 x27: dfff800000000000 x26: ffff0000d5c1a000 x25: ffff0000ea4713c8 x24: dfff800000000000 x23: 0000000000000001 x22: 00000000000005e8 x21: 1fffe0001d48e279 x20: ffff0000d5c1d818 x19: 0000000000000000 x18: 0000000000000000 x17: ffff800016d15000 x16: ffff8000111d162c x15: ffff80000897a5d8 x14: ffff8000088f4204 x13: 1ffff0000283006b x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff80000a649048 x8 : 00000000000000bd x7 : ffff80000a649f34 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : 0000000000000008 x1 : ffff8000117d9a20 x0 : 0000000000000001 Call trace: blkg_tryget_closest block/blk-cgroup.c:1842 [inline] bio_associate_blkg_from_css+0x274/0x858 block/blk-cgroup.c:1876 bio_associate_blkg+0x24c/0x374 block/blk-cgroup.c:1904 lbmStartIO+0x1b0/0x434 fs/jfs/jfs_logmgr.c:2130 lbmWrite+0x2f4/0x3f0 fs/jfs/jfs_logmgr.c:2079 lmGCwrite fs/jfs/jfs_logmgr.c:-1 [inline] jfs_flush_journal+0x428/0xd40 fs/jfs/jfs_logmgr.c:1556 jfs_sync_fs+0x80/0xac fs/jfs/super.c:689 sync_filesystem+0xe8/0x218 fs/sync.c:56 generic_shutdown_super+0x70/0x2f0 fs/super.c:448 kill_block_super+0x70/0xdc fs/super.c:1427 deactivate_locked_super+0xb8/0x13c fs/super.c:335 deactivate_super+0xf8/0x118 fs/super.c:366 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: 978813e6 f94002c8 9117a116 d343fec8 (387b6908) ---[ end trace 4444a8730e0cbd4c ]--- ---------------- Code disassembly (best guess): 0: 978813e6 bl 0xfffffffffe204f98 4: f94002c8 ldr x8, [x22] 8: 9117a116 add x22, x8, #0x5e8 c: d343fec8 lsr x8, x22, #3 * 10: 387b6908 ldrb w8, [x8, x27] <-- trapping instruction