Unable to handle kernel paging request at virtual ad 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: 1 UID: 0 PID: 95 Comm: jfsCommit Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 23400005 (nzCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : write_special_inodes fs/jfs/jfs_logmgr.c:207 [inline] pc : lmLogSync+0xf8/0x894 fs/jfs/jfs_logmgr.c:935 lr : lmLogSync+0xa0/0x894 fs/jfs/jfs_logmgr.c:934 sp : ffff800099c37b00 x29: ffff800099c37bd0 x28: 1ffff0001333f244 x27: dfff800000000000 x26: 1ffff00011fd27a0 x25: dfff800000000000 x24: ffff800099c37b20 x23: 0000000000000001 x22: ffff700013386f64 x21: 0000000000000030 x20: ffff0000ce5f5c38 x19: ffff0000ce0d8000 x18: 1fffe00033781890 x17: ffff80008f86e000 x16: ffff80008af04608 x15: ffff700013386f6c x14: 1ffff00013386f68 x13: 0000000000000004 x12: ffffffffffffffff x11: ffff700013386f6c x10: 0000000000ff0100 x9 : 0000000000000000 x8 : 0000000000000006 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : 0000000000000020 x2 : 0000000000000004 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: write_special_inodes fs/jfs/jfs_logmgr.c:207 [inline] (P) lmLogSync+0xf8/0x894 fs/jfs/jfs_logmgr.c:935 (P) jfs_syncpt+0x70/0x94 fs/jfs/jfs_logmgr.c:1041 txEnd+0x290/0x4f0 fs/jfs/jfs_txnmgr.c:550 txLazyCommit fs/jfs/jfs_txnmgr.c:2685 [inline] jfs_lazycommit+0x4b4/0x94c fs/jfs/jfs_txnmgr.c:2734 kthread+0x5fc/0x75c kernel/kthread.c:463 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844 Code: 97c0535a f94002a8 9100c115 d343fea8 (387b6908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 97c0535a bl 0xffffffffff014d68 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