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: 0 PID: 3962 Comm: syz-executor386 Not tainted 5.15.156-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 80401005 (Nzcv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) pc : bio_associate_blkg_from_css+0xfc/0x870 block/blk-cgroup.c:1867 lr : bio_associate_blkg_from_css+0xd8/0x870 block/blk-cgroup.c:1864 sp : ffff80001ca67420 x29: ffff80001ca67460 x28: dfff800000000000 x27: 1fffe000193f5ad2 x26: 1fffe000193f5ad9 x25: 0000000000000000 x24: ffff0000c9fad6c8 x23: ffff8000185eca10 x22: ffff800014b39340 x21: 00000000000005e8 x20: ffff0000c9fad688 x19: 1fffe000193f5ad1 x18: ffff80001ca66c20 x17: 0000000000000000 x16: ffff8000082eaf20 x15: ffff800008a0e1d0 x14: 1ffff0000292806a x13: dfff800000000000 x12: 000000009777d2c3 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000c82951c0 x8 : 00000000000000bd x7 : ffff80000a87fbe8 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : 0000000000000008 x1 : ffff8000185ec900 x0 : ffff0000c9fad680 Call trace: bio_associate_blkg_from_css+0xfc/0x870 block/blk-cgroup.c:1867 bio_associate_blkg+0x238/0x360 block/blk-cgroup.c:1893 lbmStartIO+0x1b0/0x430 fs/jfs/jfs_logmgr.c:2130 lbmWrite+0x320/0x404 fs/jfs/jfs_logmgr.c:2079 lmNextPage+0x2f0/0x860 lmWriteRecord+0xb84/0xfb0 fs/jfs/jfs_logmgr.c:537 lmLogSync+0x41c/0x98c fs/jfs/jfs_logmgr.c:977 jfs_syncpt+0x74/0x98 fs/jfs/jfs_logmgr.c:1049 jfs_sync_fs+0x8c/0xac fs/jfs/super.c:690 sync_filesystem+0xe8/0x218 fs/sync.c:56 generic_shutdown_super+0x70/0x29c fs/super.c:448 kill_block_super+0x70/0xdc fs/super.c:1414 deactivate_locked_super+0xb8/0x13c fs/super.c:335 deactivate_super+0x108/0x128 fs/super.c:366 cleanup_mnt+0x3c0/0x474 fs/namespace.c:1143 __cleanup_mnt+0x20/0x30 fs/namespace.c:1150 task_work_run+0x130/0x1e4 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x262c/0x32b8 arch/arm64/kernel/signal.c:946 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+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: 97813aa8 f9400288 9117a115 d343fea8 (387c6908) ---[ end trace 86a4d182499b1eef ]--- ---------------- Code disassembly (best guess): 0: 97813aa8 bl 0xfffffffffe04eaa0 4: f9400288 ldr x8, [x20] 8: 9117a115 add x21, x8, #0x5e8 c: d343fea8 lsr x8, x21, #3 * 10: 387c6908 ldrb w8, [x8, x28] <-- trapping instruction