loop5: detected capacity change from 0 to 32768 ERROR: (device loop5): diRead: i_ino != di_number 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] SMP Modules linked in: CPU: 0 UID: 0 PID: 8957 Comm: syz.5.407 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : write_special_inodes fs/jfs/jfs_logmgr.c:207 [inline] pc : jfs_flush_journal+0x790/0xd2c fs/jfs/jfs_logmgr.c:1582 lr : write_special_inodes fs/jfs/jfs_logmgr.c:206 [inline] lr : jfs_flush_journal+0x76c/0xd2c fs/jfs/jfs_logmgr.c:1582 sp : ffff80009c307760 x29: ffff80009c307830 x28: dfff800000000000 x27: 1fffe0001aa06c45 x26: 1fffe0001aa06c00 x25: 1fffe0001aa06c35 x24: 0000000000000030 x23: ffff0000f3828238 x22: 0000000000000000 x21: ffff0000d5036228 x20: ffff0000d50361a8 x19: ffff0000d5036000 x18: 1fffe0003379be88 x17: ffff80008f7de000 x16: ffff80008af7ae08 x15: 0000000000000006 x14: 0000000000000000 x13: ffff700013860ed6 x12: 0000000000000000 x11: 0000000000080000 x10: 00000000000200ae x9 : ffff80009d199000 x8 : 0000000000000006 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : fffffffffffffff0 x3 : 0000000000000030 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: write_special_inodes fs/jfs/jfs_logmgr.c:207 [inline] (P) jfs_flush_journal+0x790/0xd2c fs/jfs/jfs_logmgr.c:1582 (P) jfs_umount+0x140/0x350 fs/jfs/jfs_umount.c:58 jfs_fill_super+0x814/0xb6c fs/jfs/super.c:567 get_tree_bdev_flags+0x360/0x414 fs/super.c:1692 get_tree_bdev+0x2c/0x3c fs/super.c:1715 jfs_get_tree+0x28/0x38 fs/jfs/super.c:635 vfs_get_tree+0x90/0x28c fs/super.c:1815 do_new_mount+0x278/0x7f4 fs/namespace.c:3808 path_mount+0x5b4/0xde0 fs/namespace.c:4123 do_mount fs/namespace.c:4136 [inline] __do_sys_mount fs/namespace.c:4347 [inline] __se_sys_mount fs/namespace.c:4324 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4324 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 Code: 97c14e9e f9400308 9100c118 d343ff08 (387c6908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 97c14e9e bl 0xffffffffff053a78 4: f9400308 ldr x8, [x24] 8: 9100c118 add x24, x8, #0x30 c: d343ff08 lsr x8, x24, #3 * 10: 387c6908 ldrb w8, [x8, x28] <-- trapping instruction