loop2: detected capacity change from 0 to 14901 read_mapping_page failed! jfs_mount: diMount failed w/rc = -5 Unable to handle kernel paging request at virtual address dfff800000000001 KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] 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 [dfff800000000001] address between user and kernel address ranges Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 9063 Comm: syz-executor.2 Not tainted 6.6.0-rc4-syzkaller-g19af4a4ed414 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : diFree+0x1fc/0x2648 fs/jfs/jfs_imap.c:872 lr : diFree+0x1ec/0x2648 fs/jfs/jfs_imap.c:855 sp : ffff8000976f7400 x29: ffff8000976f7670 x28: 0000000000000001 x27: 000000000000000b x26: ffff0000c5ab5200 x25: ffff000128c5c4f0 x24: ffff8000976f7600 x23: ffff700012edeeac x22: 0000000000000000 x21: ffff000128c5c518 x20: 0000000000000002 x19: dfff800000000000 x18: 1fffe000368379ce x17: ffff80008e19d000 x16: ffff80008a579600 x15: 0000000000000003 x14: 1ffff00012edeec0 x13: 0000000000000000 x12: 0000000000000000 x11: ffff700012edeec3 x10: 1ffff00012edeec2 x9 : dfff800000000000 x8 : ffff8000976f7618 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000010 x2 : 0000000000000008 x1 : 0000000000000000 x0 : ffff8000976f7600 Call trace: diFree+0x1fc/0x2648 fs/jfs/jfs_imap.c:867 jfs_evict_inode+0x2d0/0x3f4 fs/jfs/inode.c:156 evict+0x260/0x68c fs/inode.c:664 iput_final fs/inode.c:1775 [inline] iput+0x734/0x818 fs/inode.c:1801 diFreeSpecial+0x78/0x108 fs/jfs/jfs_imap.c:549 jfs_mount+0x53c/0x7a4 fs/jfs/jfs_mount.c:203 jfs_fill_super+0x464/0x9f0 fs/jfs/super.c:556 mount_bdev+0x1e8/0x2b4 fs/super.c:1629 jfs_do_mount+0x44/0x58 fs/jfs/super.c:670 legacy_get_tree+0xd4/0x16c fs/fs_context.c:638 vfs_get_tree+0x90/0x288 fs/super.c:1750 do_new_mount+0x25c/0x8c8 fs/namespace.c:3335 path_mount+0x590/0xe04 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount fs/namespace.c:3861 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3861 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 Code: 910012db f900aff6 d343ff7c d34cfe96 (38f36b88) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 910012db add x27, x22, #0x4 4: f900aff6 str x22, [sp, #344] 8: d343ff7c lsr x28, x27, #3 c: d34cfe96 lsr x22, x20, #12 * 10: 38f36b88 ldrsb w8, [x28, x19] <-- trapping instruction