general protection fault, probably for non-canonical address 0xdffffc0000000065: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000328-0x000000000000032f] CPU: 0 PID: 23837 Comm: syz-executor.0 Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 RIP: 0010:arch_atomic64_read arch/x86/include/asm/atomic64_64.h:22 [inline] RIP: 0010:atomic64_read include/linux/atomic/atomic-instrumented.h:606 [inline] RIP: 0010:flush_tlb_func+0x4a/0x550 arch/x86/mm/tlb.c:736 Code: 8b 35 ca 8b cd 7e 65 66 44 8b 25 d1 8b cd 7e 49 8d 9e 28 03 00 00 48 89 df be 08 00 00 00 e8 ed 5a 7c 00 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 f7 58 7c 00 4c 8b 3b 66 44 89 65 RSP: 0018:ffffc90000007a60 EFLAGS: 00010006 RAX: 0000000000000065 RBX: 0000000000000329 RCX: ffffffff8135d913 RDX: 0000000000000000 RSI: 0000000000000092 RDI: 0000000000000329 RBP: ffffc90000007ad0 R08: ffffffff81656121 R09: fffffbfff0e0c746 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1103ee00000 R13: ffff8881f7136580 R14: 0000000000000001 R15: dffffc0000000000 FS: 00007fd6b121f6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31d21000 CR3: 00000001106ed000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: flush_smp_call_function_queue+0x222/0x6a0 kernel/smp.c:628 generic_smp_call_function_single_interrupt+0x13/0x20 kernel/smp.c:544 __sysvec_call_function_single+0x63/0x1b0 arch/x86/kernel/smp.c:248 sysvec_call_function_single+0x41/0xb0 arch/x86/kernel/smp.c:243 asm_sysvec_call_function_single+0x1b/0x20 arch/x86/include/asm/idtentry.h:646 RIP: 0010:list_empty include/linux/list.h:290 [inline] RIP: 0010:ext4_free_in_core_inode+0x36/0xb0 fs/ext4/super.c:1337 Code: 49 bf 00 00 00 00 00 fc ff df e8 c5 5e 79 ff 4c 89 f7 e8 8d 48 d9 ff 49 8d 9e 50 ff ff ff 48 89 d8 48 c1 e8 03 42 80 3c 38 00 <74> 08 48 89 df e8 40 6f bb ff 48 8b 03 48 39 d8 75 22 e8 93 5e 79 RSP: 0018:ffffc90000007c38 EFLAGS: 00000246 RAX: 1ffff1102be495ed RBX: ffff88815f24af68 RCX: ffff88811a72bb40 RDX: 0000000080000104 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000007c50 R08: ffffffff81d00b9c R09: ffffed103ee07002 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88815f24b168 R13: 0000000000000001 R14: ffff88815f24b018 R15: dffffc0000000000 i_callback+0x4b/0x70 fs/inode.c:225 rcu_do_batch+0x57a/0xc10 kernel/rcu/tree.c:2523 rcu_core+0x517/0x1020 kernel/rcu/tree.c:2763 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2776 __do_softirq+0x26d/0x5bf kernel/softirq.c:565 do_softirq+0xf6/0x150 kernel/softirq.c:452 __local_bh_enable_ip+0x75/0x80 kernel/softirq.c:379 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:176 [inline] _raw_spin_unlock_bh+0x51/0x60 kernel/locking/spinlock.c:210 sock_hash_delete_elem+0x2a2/0x2f0 net/core/sock_map.c:945 bpf_prog_2c29ac5cdc6b1842+0x3a/0x958 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:625 [inline] bpf_prog_run include/linux/filter.h:632 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1883 [inline] bpf_trace_run2+0xec/0x210 kernel/trace/bpf_trace.c:1920 __bpf_trace_tlb_flush+0x23/0x30 include/trace/events/tlb.h:38 trace_tlb_flush include/trace/events/tlb.h:38 [inline] switch_mm_irqs_off+0x616/0x9b0 arch/x86/mm/tlb.c:629 context_switch kernel/sched/core.c:5137 [inline] __schedule+0xb2b/0x1590 kernel/sched/core.c:6512 preempt_schedule_common+0x9b/0xf0 kernel/sched/core.c:6688 preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6713 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34 __kunmap_atomic include/linux/highmem-internal.h:220 [inline] clear_highpage include/linux/highmem.h:182 [inline] kernel_init_free_pages+0xa5/0xf0 mm/page_alloc.c:1407 post_alloc_hook+0x105/0x1b0 mm/page_alloc.c:2599 prep_new_page+0x1b/0x110 mm/page_alloc.c:2610 get_page_from_freelist+0x3550/0x35d0 mm/page_alloc.c:4484 __alloc_pages+0x27e/0x8f0 mm/page_alloc.c:5776 __alloc_pages_node include/linux/gfp.h:591 [inline] alloc_pages_node include/linux/gfp.h:605 [inline] bpf_ringbuf_area_alloc kernel/bpf/ringbuf.c:96 [inline] bpf_ringbuf_alloc+0xd0/0x3d0 kernel/bpf/ringbuf.c:133 ringbuf_map_alloc+0x202/0x320 kernel/bpf/ringbuf.c:172 find_and_alloc_map kernel/bpf/syscall.c:129 [inline] map_create+0x411/0x2050 kernel/bpf/syscall.c:857 __sys_bpf+0x296/0x760 kernel/bpf/syscall.c:4609 __do_sys_bpf kernel/bpf/syscall.c:4731 [inline] __se_sys_bpf kernel/bpf/syscall.c:4729 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:4729 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fd6b249dda9 Code: Unable to access opcode bytes at RIP 0x7fd6b249dd7f. RSP: 002b:00007fd6b121f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fd6b25cbf80 RCX: 00007fd6b249dda9 RDX: 0000000000000048 RSI: 00000000200009c0 RDI: 0000000000000000 RBP: 00007fd6b24ea47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fd6b25cbf80 R15: 00007ffefa772968 Modules linked in: ---[ end trace 9bb99783ce9b2f58 ]--- RIP: 0010:arch_atomic64_read arch/x86/include/asm/atomic64_64.h:22 [inline] RIP: 0010:atomic64_read include/linux/atomic/atomic-instrumented.h:606 [inline] RIP: 0010:flush_tlb_func+0x4a/0x550 arch/x86/mm/tlb.c:736 Code: 8b 35 ca 8b cd 7e 65 66 44 8b 25 d1 8b cd 7e 49 8d 9e 28 03 00 00 48 89 df be 08 00 00 00 e8 ed 5a 7c 00 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 f7 58 7c 00 4c 8b 3b 66 44 89 65 RSP: 0018:ffffc90000007a60 EFLAGS: 00010006 RAX: 0000000000000065 RBX: 0000000000000329 RCX: ffffffff8135d913 RDX: 0000000000000000 RSI: 0000000000000092 RDI: 0000000000000329 RBP: ffffc90000007ad0 R08: ffffffff81656121 R09: fffffbfff0e0c746 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1103ee00000 R13: ffff8881f7136580 R14: 0000000000000001 R15: dffffc0000000000 FS: 00007fd6b121f6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31d21000 CR3: 00000001106ed000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: 8b 35 ca 8b cd 7e mov 0x7ecd8bca(%rip),%esi # 0x7ecd8bd0 6: 65 66 44 8b 25 d1 8b mov %gs:0x7ecd8bd1(%rip),%r12w # 0x7ecd8be0 d: cd 7e f: 49 8d 9e 28 03 00 00 lea 0x328(%r14),%rbx 16: 48 89 df mov %rbx,%rdi 19: be 08 00 00 00 mov $0x8,%esi 1e: e8 ed 5a 7c 00 call 0x7c5b10 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 df mov %rbx,%rdi 34: e8 f7 58 7c 00 call 0x7c5930 39: 4c 8b 3b mov (%rbx),%r15 3c: 66 data16 3d: 44 rex.R 3e: 89 .byte 0x89 3f: 65 gs