Unable to handle kernel paging request at virtual address dfff800000000001 KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] 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 [dfff800000000001] address between user and kernel address ranges Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 5760 Comm: syz-executor.3 Not tainted 6.1.91-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : reiserfs_get_block+0x1440/0x45d8 fs/reiserfs/inode.c:1052 lr : reiserfs_get_block+0x13fc/0x45d8 fs/reiserfs/inode.c:1047 sp : ffff80001ec86c20 x29: ffff80001ec872a0 x28: 1fffe0001e6d6214 x27: ffffffffffffffff x26: 00000000000003f4 x25: 000000000000000c x24: 000000000000000c x23: 0000000000000000 x22: 0000000000000010 x21: 000000000000021e x20: ffff0000f2223018 x19: dfff800000000000 x18: 0000000000000010 x17: 0000001f00090028 x16: ffff8000120adcc0 x15: 0000000000000000 x14: 00000000fffffffd x13: ffff0000f3de0000 x12: 0000000000000004 x11: 0000000000ff0100 x10: 0000000000000000 x9 : 0000000000000003 x8 : 0000000000000001 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : 0000000000000020 x2 : 0000000000000000 x1 : 00000000000003f4 x0 : 0000000000000000 Call trace: reiserfs_get_block+0x1440/0x45d8 fs/reiserfs/inode.c:1052 __block_write_begin_int+0x340/0x13b4 fs/buffer.c:1991 __block_write_begin+0x7c/0xa0 fs/buffer.c:2041 __reiserfs_write_begin+0x348/0x56c fs/reiserfs/inode.c:2835 reiserfs_xattr_set_handle+0x46c/0xe90 fs/reiserfs/xattr.c:571 reiserfs_xattr_set+0x398/0x4b0 fs/reiserfs/xattr.c:633 security_set+0x9c/0xd8 fs/reiserfs/xattr_security.c:32 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:216 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277 vfs_setxattr+0x1a8/0x344 fs/xattr.c:309 do_setxattr fs/xattr.c:594 [inline] setxattr+0x230/0x294 fs/xattr.c:617 __do_sys_fsetxattr fs/xattr.c:673 [inline] __se_sys_fsetxattr fs/xattr.c:662 [inline] __arm64_sys_fsetxattr+0x1a8/0x224 fs/xattr.c:662 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Code: 350071a8 8b1b0ad9 b94483f5 d343ff28 (38f36908) ---[ end trace 0000000000000000 ]--- pstore: crypto_comp_compress failed, ret = -22! ---------------- Code disassembly (best guess): 0: 350071a8 cbnz w8, 0xe34 4: 8b1b0ad9 add x25, x22, x27, lsl #2 8: b94483f5 ldr w21, [sp, #1152] c: d343ff28 lsr x8, x25, #3 * 10: 38f36908 ldrsb w8, [x8, x19] <-- trapping instruction