Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 Mem abort info: ESR = 0x0000000097d98004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: Access size = 8 byte(s) SSE = 0, SRT = 25 SF = 1, AR = 0 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=00000000455c2000 [0000000000000008] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000097d98004 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 2947 Comm: udevd Not tainted 6.7.0-syzkaller-12824-g9d64bf433c53 #0 Hardware name: linux,dummy-virt (DT) pstate: 61400009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : list_add_tail include/linux/list.h:183 [inline] pc : list_lru_add+0x9c/0x148 mm/list_lru.c:97 lr : list_lru_from_memcg_idx mm/list_lru.c:56 [inline] lr : list_lru_from_memcg_idx mm/list_lru.c:53 [inline] lr : list_lru_add+0x12c/0x148 mm/list_lru.c:96 sp : ffff800088993990 x29: ffff800088993990 x28: f6ff000005009200 x27: 0000000000000000 x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000 x23: f3ff000005750000 x22: 0000000000000000 x21: fdff00000525c460 x20: f4ff000005417e80 x19: fbff000003a97d48 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: fdff0000057e9047 x11: ffff800088993a3c x10: 00000006738c0d8c x9 : 0000000000000000 x8 : 0101010101010101 x7 : 00000000001fffff x6 : 0000000055555556 x5 : fdff000002c44b00 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: list_lru_from_memcg_idx mm/list_lru.c:60 [inline] list_lru_add+0x9c/0x148 mm/list_lru.c:96 list_lru_add_obj+0x58/0x7c mm/list_lru.c:116 d_lru_add+0x98/0x14c fs/dcache.c:430 retain_dentry fs/dcache.c:712 [inline] fast_dput fs/dcache.c:799 [inline] dput+0x198/0x1c4 fs/dcache.c:839 handle_mounts fs/namei.c:1554 [inline] step_into+0x3e8/0x658 fs/namei.c:1839 walk_component+0x4c/0x190 fs/namei.c:2007 lookup_last fs/namei.c:2458 [inline] path_lookupat+0x78/0x19c fs/namei.c:2482 filename_lookup+0xac/0x1a4 fs/namei.c:2511 vfs_statx+0x88/0x198 fs/stat.c:244 vfs_fstatat+0xcc/0x108 fs/stat.c:304 __do_sys_newfstatat+0x58/0x9c fs/stat.c:468 __se_sys_newfstatat fs/stat.c:462 [inline] __arm64_sys_newfstatat+0x20/0x2c fs/stat.c:462 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x48/0x114 arch/arm64/kernel/syscall.c:51 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:136 do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:155 el0_svc+0x34/0xd8 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:598 Code: f94002b8 8b190318 91002318 aa1803fa (f9400719) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: f94002b8 ldr x24, [x21] 4: 8b190318 add x24, x24, x25 8: 91002318 add x24, x24, #0x8 c: aa1803fa mov x26, x24 * 10: f9400719 ldr x25, [x24, #8] <-- trapping instruction