Unable to handle kernel NULL pointer dereference at virtual address 0000000000000067 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 user pgtable: 4k pages, 48-bit VAs, pgdp=00000001648a0000 [0000000000000067] pgd=080000015ffab003, p4d=080000015ffab003, pud=0800000163d85003, pmd=0000000000000000 Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 31226 Comm: syz-executor.2 Not tainted 6.1.0-rc4-syzkaller-31872-g1621b6eaebf7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : d_really_is_negative include/linux/dcache.h:466 [inline] pc : open_xa_root fs/reiserfs/xattr.c:124 [inline] pc : open_xa_dir+0x48/0x2a8 fs/reiserfs/xattr.c:152 lr : open_xa_dir+0x34/0x2a8 fs/reiserfs/xattr.c:148 sp : ffff80001fa33850 x29: ffff80001fa33870 x28: 0000000000000030 x27: ffff000113ad9750 x26: 0000000000000000 x25: 0000000000000000 x24: ffffffffffffffff x23: 0000000000000000 x22: 0000000000000002 x21: ffff00011d8c0190 x20: 0000000000000002 x19: ffff0001186cb000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000002 x13: 0000000000008000 x12: 0000000000040000 x11: 0000000000015164 x10: ffff80001c180000 x9 : ffff800008796bac x8 : ffff0001246d3300 x7 : ffff8000086aea10 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 0000000000000002 x1 : 0000000000000002 x0 : ffff00011d8c0190 Call trace: open_xa_root fs/reiserfs/xattr.c:121 [inline] open_xa_dir+0x48/0x2a8 fs/reiserfs/xattr.c:152 xattr_lookup+0x34/0x198 fs/reiserfs/xattr.c:395 reiserfs_xattr_get+0x8c/0x6a8 fs/reiserfs/xattr.c:677 reiserfs_get_acl+0x84/0x1ac fs/reiserfs/xattr_acl.c:214 get_acl+0x104/0x398 fs/posix_acl.c:153 check_acl+0x40/0x178 fs/namei.c:306 acl_permission_check fs/namei.c:351 [inline] generic_permission+0x270/0x32c fs/namei.c:404 reiserfs_permission+0x4c/0x6c fs/reiserfs/xattr.c:954 do_inode_permission fs/namei.c:458 [inline] inode_permission+0x128/0x244 fs/namei.c:525 may_open+0x1e4/0x2bc fs/namei.c:3185 do_open fs/namei.c:3555 [inline] path_openat+0xdd0/0x11c4 fs/namei.c:3713 do_filp_open+0xdc/0x1b8 fs/namei.c:3740 do_sys_openat2+0xb8/0x22c fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 Code: 390043ff a9007fff f9433e68 f942cd18 (f9403708) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 390043ff strb wzr, [sp, #16] 4: a9007fff stp xzr, xzr, [sp] 8: f9433e68 ldr x8, [x19, #1656] c: f942cd18 ldr x24, [x8, #1432] * 10: f9403708 ldr x8, [x24, #104] <-- trapping instruction