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=0000000045684000 [0000000000000008] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000097d88004 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 2951 Comm: udevd Not tainted 6.7.0-rc5-syzkaller-00200-g3bd7d7488169 #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 : ffff800088b83ce0 x29: ffff800088b83ce0 x28: faff0000052a0000 x27: 0000000000000000 x26: 0000000000000000 x25: f7ff000005bdf000 x24: faff0000055b4580 x23: 0000000000000000 x22: 0000000000000000 x21: f6ff000005323458 x20: faff0000055b4580 x19: f1ff00000335d380 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: f4ff000002f83041 x11: ffff800088b83b2c x10: fffffffffffe2888 x9 : 0000000000000000 x8 : 0000000000000011 x7 : 00000000001fffff x6 : 0000000055555556 x5 : f3ff000002c38b00 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 path_put+0x1c/0x34 fs/namei.c:562 do_readlinkat+0x13c/0x15c fs/stat.c:509 __do_sys_readlinkat fs/stat.c:521 [inline] __se_sys_readlinkat fs/stat.c:518 [inline] __arm64_sys_readlinkat+0x20/0x30 fs/stat.c:518 __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