Unable to handle kernel paging request at virtual address dfff800000000006 KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] Mem abort info: ESR = 0x0000000096000005 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x05: level 1 translation fault Data abort info: ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [dfff800000000006] address between user and kernel address ranges Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP Modules linked in: CPU: 1 UID: 0 PID: 6420 Comm: syz-executor152 Not tainted 6.12.0-syzkaller-g7b1d1d4cfac0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : write_special_inodes fs/jfs/jfs_logmgr.c:207 [inline] pc : lmLogSync+0x1d4/0x978 fs/jfs/jfs_logmgr.c:937 lr : lmLogSync+0xa4/0x978 fs/jfs/jfs_logmgr.c:934 sp : ffff8000a34f79e0 x29: ffff8000a34f7aa0 x28: 1fffe0001ad8e47a x27: dfff800000000000 x26: 0000000000000003 x25: ffff8000a34f7a00 x24: 1fffe00018c75006 x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000030 x20: ffff0000d5a6a438 x19: ffff0000d9387800 x18: 1fffe000366c8076 x17: ffff80008f8cd000 x16: ffff80008b47f808 x15: ffff70001469ef48 x14: 1ffff0001469ef45 x13: 0000000000000004 x12: ffffffffffffffff x11: ffff70001469ef48 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : 0000000000000006 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000004 x3 : 0000000000000010 x2 : 0000000000000004 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: write_special_inodes fs/jfs/jfs_logmgr.c:207 [inline] (P) lmLogSync+0x1d4/0x978 fs/jfs/jfs_logmgr.c:937 (P) lmLogSync+0xa4/0x978 fs/jfs/jfs_logmgr.c:934 (L) jfs_syncpt+0x74/0x98 fs/jfs/jfs_logmgr.c:1041 jfs_sync_fs+0x8c/0xac fs/jfs/super.c:685 sync_filesystem+0x1a0/0x218 fs/sync.c:66 generic_shutdown_super+0x70/0x2bc fs/super.c:621 kill_block_super+0x44/0x90 fs/super.c:1710 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380 task_work_run+0x230/0x2e0 kernel/task_work.c:239 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:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Code: 97bbfb7a f94002a8 9100c115 d343fea8 (387b6908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 97bbfb7a bl 0xfffffffffeefede8 4: f94002a8 ldr x8, [x21] 8: 9100c115 add x21, x8, #0x30 c: d343fea8 lsr x8, x21, #3 * 10: 387b6908 ldrb w8, [x8, x27] <-- trapping instruction