Unable to handle kernel paging request at virtual address ffff700053c5f80b KASAN: maybe wild-memory-access in range [0xffff80029e2fc058-0xffff80029e2fc05f] 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 CM = 0, WnR = 0 swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000001ab226000 [ffff700053c5f80b] pgd=000000023ea4e003, p4d=000000023ea4e003, pud=0000000000000000 Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4951 Comm: syz.4.189 Not tainted 6.1.127-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : bq_enqueue kernel/bpf/cpumap.c:751 [inline] pc : cpu_map_enqueue+0x100/0x310 kernel/bpf/cpumap.c:775 lr : bq_enqueue kernel/bpf/cpumap.c:749 [inline] lr : cpu_map_enqueue+0xd8/0x310 kernel/bpf/cpumap.c:775 sp : ffff8000219675b0 x29: ffff8000219675b0 x28: ffff0000f0b14000 x27: ffff0001b3cf1f00 x26: ffff0000d1073c00 x25: ffff80019e2fc000 x24: dfff800000000000 x23: 1ffff00053c5f80b x22: ffff800015a91148 x21: ffff80029e2fc058 x20: ffff80029e2fc000 x19: ffff0000e73a8000 x18: 0000000000000278 x17: 0000000000000000 x16: ffff80001232fa24 x15: 0000000000000002 x14: 0000000000000019 x13: ffff0000d7af0000 x12: 0000000000080000 x11: 0000000000000344 x10: ffff800029d4d000 x9 : ffff8000086ab3fc x8 : ffff80019e2fc000 x7 : 0019000000000004 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000004 x2 : ffff0000f0b14000 x1 : 0000000000000000 x0 : 0000000000000008 Call trace: bq_enqueue kernel/bpf/cpumap.c:751 [inline] cpu_map_enqueue+0x100/0x310 kernel/bpf/cpumap.c:775 __xdp_do_redirect_frame net/core/filter.c:4324 [inline] xdp_do_redirect+0x54c/0x9d8 net/core/filter.c:4368 tun_xdp_act+0xf4/0xfd0 drivers/net/tun.c:1625 tun_build_skb drivers/net/tun.c:1715 [inline] tun_get_user+0x27d4/0x386c drivers/net/tun.c:1818 tun_chr_write_iter+0xfc/0x204 drivers/net/tun.c:2044 call_write_iter include/linux/fs.h:2265 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x610/0x91c fs/read_write.c:584 ksys_write+0x15c/0x26c fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Code: f9400288 8b170114 91016295 d343feb7 (38f86ae8) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: f9400288 ldr x8, [x20] 4: 8b170114 add x20, x8, x23 8: 91016295 add x21, x20, #0x58 c: d343feb7 lsr x23, x21, #3 * 10: 38f86ae8 ldrsb w8, [x23, x24] <-- trapping instruction