Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 Mem abort info: ESR = 0x0000000097d88004 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 = 24 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=00000000455c7000 [0000000000000008] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000097d88004 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 2946 Comm: udevd Not tainted 6.7.0-rc7-syzkaller-00041-gf016f7547aee #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+0xa4/0x188 mm/list_lru.c:129 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_from_kmem mm/list_lru.c:78 [inline] lr : list_lru_add+0x16c/0x188 mm/list_lru.c:128 sp : ffff8000889b39c0 x29: ffff8000889b39c0 x28: f1ff00000533cec0 x27: 0000000000000000 x26: 0000000000000000 x25: f5ff00000b63e000 x24: fdff000004e26340 x23: 0000000000000000 x22: 0000000000000000 x21: f1ff00000506e458 x20: fdff000004e26340 x19: fbff000003348f80 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: f8ff000002fa2049 x11: ffff8000889b3a3c x10: 00000006f939e1ba x9 : 0000000000000000 x8 : 0101010101010101 x7 : 00000000001fffff x6 : 0000000055555556 x5 : f8ff000002c38b00 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: list_lru_from_kmem mm/list_lru.c:68 [inline] list_lru_add+0xa4/0x188 mm/list_lru.c:128 d_lru_add+0x98/0x14c fs/dcache.c:431 retain_dentry fs/dcache.c:685 [inline] dput+0x194/0x31c fs/dcache.c:908 handle_mounts fs/namei.c:1555 [inline] step_into+0x3e8/0x658 fs/namei.c:1840 walk_component+0x4c/0x190 fs/namei.c:2008 lookup_last fs/namei.c:2459 [inline] path_lookupat+0x78/0x19c fs/namei.c:2483 filename_lookup+0xac/0x1a4 fs/namei.c:2512 vfs_statx+0x88/0x170 fs/stat.c:244 vfs_fstatat+0xcc/0x108 fs/stat.c:299 __do_sys_newfstatat+0x58/0x9c fs/stat.c:463 __se_sys_newfstatat fs/stat.c:457 [inline] __arm64_sys_newfstatat+0x20/0x2c fs/stat.c:457 __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:595 Code: 8b160316 d2800019 910022d6 aa1603fa (f94006d8) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 8b160316 add x22, x24, x22 4: d2800019 mov x25, #0x0 // #0 8: 910022d6 add x22, x22, #0x8 c: aa1603fa mov x26, x22 * 10: f94006d8 ldr x24, [x22, #8] <-- trapping instruction