R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fdbed696f80 R15: 00007fff5171fed8 </TASK> ---[ end trace c4d9f53516e183c7 ]--- ================================================================== BUG: KASAN: null-ptr-deref in instrument_atomic_read include/linux/instrumented.h:71 [inline] BUG: KASAN: null-ptr-deref in atomic64_read include/linux/atomic/atomic-instrumented.h:605 [inline] BUG: KASAN: null-ptr-deref in flush_tlb_func+0x43/0x550 arch/x86/mm/tlb.c:736 Read of size 8 at addr 0000000000000329 by task kworker/0:5/1140 CPU: 0 PID: 1140 Comm: kworker/0:5 Tainted: G W 5.15.149-syzkaller-00165-g85445b5a2107 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: 0x0 (events) Call Trace: <IRQ> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106 __kasan_report mm/kasan/report.c:431 [inline] kasan_report+0x16f/0x1c0 mm/kasan/report.c:444 kasan_check_range+0x293/0x2a0 mm/kasan/generic.c:189 __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31 instrument_atomic_read include/linux/instrumented.h:71 [inline] atomic64_read include/linux/atomic/atomic-instrumented.h:605 [inline] flush_tlb_func+0x43/0x550 arch/x86/mm/tlb.c:736 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:unwind_next_frame+0x1/0x700 arch/x86/kernel/unwind_frame.c:255 Code: c0 08 5b 41 5e 41 5f 5d c3 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 99 4c 89 f7 e8 8b 9d 7d 00 eb 8f 66 0f 1f 84 00 00 00 00 00 55 <48> 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 50 49 89 fe 48 ba 00 RSP: 0018:ffffc90000007770 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffffc90000007780 RCX: 0000000000007701 RDX: dffffc0000000000 RSI: ffffffff81b24826 RDI: ffffc90000007780 RBP: ffffc90000007810 R08: ffffc90000007868 R09: 0000000000000002 R10: ffffc90000007870 R11: dffffc0000000001 R12: ffff8881187d93c0 R13: ffffffff815f5280 R14: ffffc90000007860 R15: 0000000000000000 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x126/0x160 mm/kasan/common.c:365 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373 kasan_slab_free include/linux/kasan.h:193 [inline] slab_free_hook mm/slub.c:1723 [inline] slab_free_freelist_hook+0xbd/0x190 mm/slub.c:1749 slab_free mm/slub.c:3519 [inline] kmem_cache_free+0x116/0x2e0 mm/slub.c:3535 inode_free_by_rcu+0x1c/0x20 security/security.c:1048 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 </IRQ> <TASK> __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/0x290 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:1880 [inline] bpf_trace_run2+0xec/0x210 kernel/trace/bpf_trace.c:1917 __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 schedule+0x11f/0x1e0 kernel/sched/core.c:6595 worker_thread+0xf7f/0x12a0 kernel/workqueue.c:2493 kthread+0x421/0x510 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 </TASK> ================================================================== 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: 1140 Comm: kworker/0:5 Tainted: G B W 5.15.149-syzkaller-00165-g85445b5a2107 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: 0x0 (events) 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 2a 96 cd 7e 65 66 44 8b 25 31 96 cd 7e 49 8d 9e 28 03 00 00 48 89 df be 08 00 00 00 e8 fd 97 7c 00 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 07 96 7c 00 4c 8b 3b 66 44 89 65 RSP: 0018:ffffc900000075a0 EFLAGS: 00010006 RAX: 0000000000000065 RBX: 0000000000000329 RCX: ffff8881187d93c0 RDX: 0000000080010104 RSI: 0000000000000096 RDI: 00000000ffffffff RBP: ffffc90000007610 R08: ffffffff8141701b R09: 0000000000000003 R10: fffffbfff0e5284c R11: dffffc0000000001 R12: 1ffff1103ee00000 R13: ffff8881f7137180 R14: 0000000000000001 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33627000 CR3: 000000011c7ce000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> 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:unwind_next_frame+0x1/0x700 arch/x86/kernel/unwind_frame.c:255 Code: c0 08 5b 41 5e 41 5f 5d c3 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 99 4c 89 f7 e8 8b 9d 7d 00 eb 8f 66 0f 1f 84 00 00 00 00 00 55 <48> 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 50 49 89 fe 48 ba 00 RSP: 0018:ffffc90000007770 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffffc90000007780 RCX: 0000000000007701 RDX: dffffc0000000000 RSI: ffffffff81b24826 RDI: ffffc90000007780 RBP: ffffc90000007810 R08: ffffc90000007868 R09: 0000000000000002 R10: ffffc90000007870 R11: dffffc0000000001 R12: ffff8881187d93c0 R13: ffffffff815f5280 R14: ffffc90000007860 R15: 0000000000000000 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x126/0x160 mm/kasan/common.c:365 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373 kasan_slab_free include/linux/kasan.h:193 [inline] slab_free_hook mm/slub.c:1723 [inline] slab_free_freelist_hook+0xbd/0x190 mm/slub.c:1749 slab_free mm/slub.c:3519 [inline] kmem_cache_free+0x116/0x2e0 mm/slub.c:3535 inode_free_by_rcu+0x1c/0x20 security/security.c:1048 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 </IRQ> <TASK> __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/0x290 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:1880 [inline] bpf_trace_run2+0xec/0x210 kernel/trace/bpf_trace.c:1917 __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 schedule+0x11f/0x1e0 kernel/sched/core.c:6595 worker_thread+0xf7f/0x12a0 kernel/workqueue.c:2493 kthread+0x421/0x510 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 </TASK> Modules linked in: ---[ end trace c4d9f53516e183c8 ]--- 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 2a 96 cd 7e 65 66 44 8b 25 31 96 cd 7e 49 8d 9e 28 03 00 00 48 89 df be 08 00 00 00 e8 fd 97 7c 00 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 07 96 7c 00 4c 8b 3b 66 44 89 65 RSP: 0018:ffffc900000075a0 EFLAGS: 00010006 RAX: 0000000000000065 RBX: 0000000000000329 RCX: ffff8881187d93c0 RDX: 0000000080010104 RSI: 0000000000000096 RDI: 00000000ffffffff RBP: ffffc90000007610 R08: ffffffff8141701b R09: 0000000000000003 R10: fffffbfff0e5284c R11: dffffc0000000001 R12: 1ffff1103ee00000 R13: ffff8881f7137180 R14: 0000000000000001 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33627000 CR3: 000000011c7ce000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: c0 08 5b rorb $0x5b,(%rax) 3: 41 5e pop %r14 5: 41 5f pop %r15 7: 5d pop %rbp 8: c3 ret 9: 44 89 f1 mov %r14d,%ecx c: 80 e1 07 and $0x7,%cl f: 80 c1 03 add $0x3,%cl 12: 38 c1 cmp %al,%cl 14: 7c 99 jl 0xffffffaf 16: 4c 89 f7 mov %r14,%rdi 19: e8 8b 9d 7d 00 call 0x7d9da9 1e: eb 8f jmp 0xffffffaf 20: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) 27: 00 00 29: 55 push %rbp * 2a: 48 89 e5 mov %rsp,%rbp <-- trapping instruction 2d: 41 57 push %r15 2f: 41 56 push %r14 31: 41 55 push %r13 33: 41 54 push %r12 35: 53 push %rbx 36: 48 83 ec 50 sub $0x50,%rsp 3a: 49 89 fe mov %rdi,%r14 3d: 48 rex.W 3e: ba .byte 0xba