Unable to handle kernel paging request at virtual address dfff80000000000d KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f] 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 [dfff80000000000d] address between user and kernel address ranges Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP Modules linked in: CPU: 1 UID: 0 PID: 8004 Comm: syz.1.259 Not tainted 6.10.0-syzkaller-11835-g527eff227d43 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : d_really_is_negative include/linux/dcache.h:485 [inline] pc : reiserfs_xattr_jcreate_nblocks fs/reiserfs/xattr.h:79 [inline] pc : reiserfs_xattr_set+0x2cc/0x4b0 fs/reiserfs/xattr.c:626 lr : reiserfs_xattr_jcreate_nblocks fs/reiserfs/xattr.h:78 [inline] lr : reiserfs_xattr_set+0x298/0x4b0 fs/reiserfs/xattr.c:626 sp : ffff80009d497700 x29: ffff80009d4977f0 x28: 0000000000000000 x27: ffff0000ca50c000 x26: 0000000000000000 x25: 0000000000000036 x24: ffff700013a92ee8 x23: 0000000000000068 x22: ffff0000dcb70850 x21: 1fffe0001b96e10a x20: dfff800000000000 x19: 000000000000006c x18: 0000000000000000 x17: 0000000000000000 x16: ffff80008a04ef40 x15: 0000000000000007 x14: 1ffff00013a92eec x13: 0000000000000000 x12: 0000000000000000 x11: ffff700013a92ef3 x10: 000000000000006c x9 : 00000000000001c0 x8 : 000000000000000d x7 : 0000000000000000 x6 : 0000000000000002 x5 : ffff0000c56a61c0 x4 : 0000000000000000 x3 : 0000000000000030 x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: d_really_is_negative include/linux/dcache.h:485 [inline] reiserfs_xattr_jcreate_nblocks fs/reiserfs/xattr.h:79 [inline] reiserfs_xattr_set+0x2cc/0x4b0 fs/reiserfs/xattr.c:626 security_set+0x9c/0xd8 fs/reiserfs/xattr_security.c:32 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:200 __vfs_setxattr_noperm+0x110/0x578 fs/xattr.c:234 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:295 vfs_setxattr+0x1a8/0x344 fs/xattr.c:321 do_setxattr fs/xattr.c:629 [inline] setxattr+0x208/0x29c fs/xattr.c:652 __do_sys_fsetxattr fs/xattr.c:708 [inline] __se_sys_fsetxattr fs/xattr.c:697 [inline] __arm64_sys_fsetxattr+0x1a8/0x224 fs/xattr.c:697 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0xa4/0x2c8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x13c/0x250 arch/arm64/kernel/syscall.c:132 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Code: 97ed6a4b f94002e8 9101a117 d343fee8 (38746908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 97ed6a4b bl 0xffffffffffb5a92c 4: f94002e8 ldr x8, [x23] 8: 9101a117 add x23, x8, #0x68 c: d343fee8 lsr x8, x23, #3 * 10: 38746908 ldrb w8, [x8, x20] <-- trapping instruction