==================================================================
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 rcu_preempt/14
CPU: 0 PID: 14 Comm: rcu_preempt Not tainted 5.15.149-syzkaller-00165-g85445b5a2107 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
__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+0x0/0x700 arch/x86/kernel/unwind_frame.c:255
Code: 83 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
RSP: 0018:ffffc90000007758 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffc90000007760 RCX: 0000000000007701
RDX: dffffc0000000000 RSI: ffffffff8500026d RDI: ffffc90000007760
RBP: ffffc900000077f0 R08: ffffc90000007848 R09: 000000000000000a
R10: ffffc90000007850 R11: dffffc0000000001 R12: ffff8881002693c0
R13: ffffffff815f5280 R14: ffffc90000007840 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
file_free_rcu+0x9f/0xb0 fs/file_table.c:50
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_map_delete net/core/sock_map.c:426 [inline]
sock_map_delete_elem+0xcb/0x130 net/core/sock_map.c:448
bpf_prog_029d1888f6cd2729+0x3f/0x554
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
schedule_timeout+0x18c/0x370 kernel/time/timer.c:1890
rcu_gp_fqs_loop+0x2af/0xf80 kernel/rcu/tree.c:1972
rcu_gp_kthread+0xa4/0x350 kernel/rcu/tree.c:2145
kthread+0x421/0x510 kernel/kthread.c:337
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
==================================================================
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: 14 Comm: rcu_preempt Tainted: G B 5.15.149-syzkaller-00165-g85445b5a2107 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
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 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:ffffc90000007580 EFLAGS: 00010006
RAX: 0000000000000065 RBX: 0000000000000329 RCX: ffff8881002693c0
RDX: 0000000080010104 RSI: 0000000000000096 RDI: 00000000ffffffff
RBP: ffffc900000075f0 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: 0000000020003ff6 CR3: 000000013a022000 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:unwind_next_frame+0x0/0x700 arch/x86/kernel/unwind_frame.c:255
Code: 83 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
RSP: 0018:ffffc90000007758 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffc90000007760 RCX: 0000000000007701
RDX: dffffc0000000000 RSI: ffffffff8500026d RDI: ffffc90000007760
RBP: ffffc900000077f0 R08: ffffc90000007848 R09: 000000000000000a
R10: ffffc90000007850 R11: dffffc0000000001 R12: ffff8881002693c0
R13: ffffffff815f5280 R14: ffffc90000007840 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
file_free_rcu+0x9f/0xb0 fs/file_table.c:50
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_map_delete net/core/sock_map.c:426 [inline]
sock_map_delete_elem+0xcb/0x130 net/core/sock_map.c:448
bpf_prog_029d1888f6cd2729+0x3f/0x554
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
schedule_timeout+0x18c/0x370 kernel/time/timer.c:1890
rcu_gp_fqs_loop+0x2af/0xf80 kernel/rcu/tree.c:1972
rcu_gp_kthread+0xa4/0x350 kernel/rcu/tree.c:2145
kthread+0x421/0x510 kernel/kthread.c:337
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Modules linked in:
---[ end trace 783708d65d07cc2b ]---
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:ffffc90000007580 EFLAGS: 00010006
RAX: 0000000000000065 RBX: 0000000000000329 RCX: ffff8881002693c0
RDX: 0000000080010104 RSI: 0000000000000096 RDI: 00000000ffffffff
RBP: ffffc900000075f0 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: 0000000020003ff6 CR3: 000000013a022000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
0: 83 c0 08 add $0x8,%eax
3: 5b pop %rbx
4: 41 5e pop %r14
6: 41 5f pop %r15
8: 5d pop %rbp
9: c3 ret
a: 44 89 f1 mov %r14d,%ecx
d: 80 e1 07 and $0x7,%cl
10: 80 c1 03 add $0x3,%cl
13: 38 c1 cmp %al,%cl
15: 7c 99 jl 0xffffffb0
17: 4c 89 f7 mov %r14,%rdi
1a: e8 8b 9d 7d 00 call 0x7d9daa
1f: eb 8f jmp 0xffffffb0
21: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1)
28: 00 00
* 2a: 55 push %rbp <-- trapping instruction
2b: 48 89 e5 mov %rsp,%rbp
2e: 41 57 push %r15
30: 41 56 push %r14
32: 41 55 push %r13
34: 41 54 push %r12
36: 53 push %rbx
37: 48 83 ec 50 sub $0x50,%rsp
3b: 49 89 fe mov %rdi,%r14
3e: 48 rex.W
3f: ba .byte 0xba