==================================================================
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 syz-executor.0/11752
CPU: 1 PID: 11752 Comm: syz-executor.0 Tainted: G W 5.15.149-syzkaller-00490-g5d96939590c0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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:find_stack lib/stackdepot.c:207 [inline]
RIP: 0010:__stack_depot_save+0x167/0x470 lib/stackdepot.c:304
Code: de eb 03 44 89 ff 48 8b 05 8e b9 ab 04 44 89 f1 81 e1 ff 0f 00 00 48 89 45 b0 48 89 4d b8 4c 8b 24 c8 4c 89 cb 41 89 df eb 04 <4d> 8b 24 24 4d 85 e4 74 2d 45 39 74 24 08 75 f0 41 39 5c 24 0c 75
RSP: 0018:ffffc900001d0858 EFLAGS: 00000a87
RAX: ffff88823fe80000 RBX: 000000000000000c RCX: 000000000000052e
RDX: ffffc900001d0914 RSI: 0000000000000001 RDI: 0000000000000800
RBP: ffffc900001d08b0 R08: 0000000000000003 R09: 000000000000000c
R10: ffffc900001d0830 R11: dffffc0000000001 R12: ffff88812ae33180
R13: ffffc900001d08c0 R14: 00000000b813452e R15: 000000000000000c
kasan_save_stack mm/kasan/common.c:39 [inline]
kasan_set_track+0x5d/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
shmem_free_in_core_inode+0x8f/0xc0 mm/shmem.c:3803
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_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/0x478
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_irq+0xc7/0x140 kernel/sched/core.c:6916
irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:392
irqentry_exit+0x30/0x40 kernel/entry/common.c:426
sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:memcmp lib/string.c:944 [inline]
RIP: 0010:bcmp+0x75/0x200 lib/string.c:976
Code: c1 e8 03 0f b6 04 10 84 c0 0f 85 83 00 00 00 49 8b 34 24 49 8d 7d 07 4c 89 e8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 8e 00 00 00 <48> 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 b5 00 00 00 49 3b 37
RSP: 0018:ffffc90000e470f8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88812717b008 RCX: dffffc0000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88811033900f
RBP: ffffc90000e47130 R08: ffffffff8183359b R09: ffffffff8183e737
R10: 0000000000000002 R11: ffff888115f40000 R12: ffff88812717b008
R13: ffff888110339008 R14: 0000000000000058 R15: ffff888110339008
states_maybe_looping kernel/bpf/verifier.c:10834 [inline]
is_state_visited kernel/bpf/verifier.c:10894 [inline]
do_check+0x1b14/0xf2c0 kernel/bpf/verifier.c:11133
do_check_common+0x909/0x1290 kernel/bpf/verifier.c:13408
do_check_main kernel/bpf/verifier.c:13471 [inline]
bpf_check+0x3835/0x12bf0 kernel/bpf/verifier.c:14042
bpf_prog_load+0x12ac/0x1b50 kernel/bpf/syscall.c:2333
__sys_bpf+0x4bc/0x760 kernel/bpf/syscall.c:4633
__do_sys_bpf kernel/bpf/syscall.c:4737 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4735 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:4735
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: 0033:0x7f45d1113ca9
Code: Unable to access opcode bytes at RIP 0x7f45d1113c7f.
RSP: 002b:00007f45cfe870c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f45d1241f80 RCX: 00007f45d1113ca9
RDX: 0000000000000023 RSI: 0000000020000300 RDI: 0000000000000005
RBP: 00007f45d115f47e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f45d1241f80 R15: 00007ffdb7ba2668
==================================================================
general protection fault, probably for non-canonical address 0xdffffc0000000065: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000328-0x000000000000032f]
CPU: 1 PID: 11752 Comm: syz-executor.0 Tainted: G B W 5.15.149-syzkaller-00490-g5d96939590c0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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 fa 8a cd 7e 65 66 44 8b 25 01 8b cd 7e 49 8d 9e 28 03 00 00 48 89 df be 08 00 00 00 e8 ed 70 7c 00 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 f7 6e 7c 00 4c 8b 3b 66 44 89 65
RSP: 0018:ffffc900001d0680 EFLAGS: 00010006
RAX: 0000000000000065 RBX: 0000000000000329 RCX: ffff888115f40000
RDX: 0000000080010104 RSI: 0000000000000096 RDI: 00000000ffffffff
RBP: ffffc900001d06f0 R08: ffffffff81416f3b R09: 0000000000000003
R10: fffffbfff0e5244c R11: dffffc0000000001 R12: 1ffff1103ee20000
R13: ffff8881f7036580 R14: 0000000000000001 R15: dffffc0000000000
FS: 00007f45cfe876c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020cc7000 CR3: 0000000127318000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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:find_stack lib/stackdepot.c:207 [inline]
RIP: 0010:__stack_depot_save+0x167/0x470 lib/stackdepot.c:304
Code: de eb 03 44 89 ff 48 8b 05 8e b9 ab 04 44 89 f1 81 e1 ff 0f 00 00 48 89 45 b0 48 89 4d b8 4c 8b 24 c8 4c 89 cb 41 89 df eb 04 <4d> 8b 24 24 4d 85 e4 74 2d 45 39 74 24 08 75 f0 41 39 5c 24 0c 75
RSP: 0018:ffffc900001d0858 EFLAGS: 00000a87
RAX: ffff88823fe80000 RBX: 000000000000000c RCX: 000000000000052e
RDX: ffffc900001d0914 RSI: 0000000000000001 RDI: 0000000000000800
RBP: ffffc900001d08b0 R08: 0000000000000003 R09: 000000000000000c
R10: ffffc900001d0830 R11: dffffc0000000001 R12: ffff88812ae33180
R13: ffffc900001d08c0 R14: 00000000b813452e R15: 000000000000000c
kasan_save_stack mm/kasan/common.c:39 [inline]
kasan_set_track+0x5d/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
shmem_free_in_core_inode+0x8f/0xc0 mm/shmem.c:3803
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_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/0x478
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_irq+0xc7/0x140 kernel/sched/core.c:6916
irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:392
irqentry_exit+0x30/0x40 kernel/entry/common.c:426
sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:memcmp lib/string.c:944 [inline]
RIP: 0010:bcmp+0x75/0x200 lib/string.c:976
Code: c1 e8 03 0f b6 04 10 84 c0 0f 85 83 00 00 00 49 8b 34 24 49 8d 7d 07 4c 89 e8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 8e 00 00 00 <48> 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 b5 00 00 00 49 3b 37
RSP: 0018:ffffc90000e470f8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88812717b008 RCX: dffffc0000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88811033900f
RBP: ffffc90000e47130 R08: ffffffff8183359b R09: ffffffff8183e737
R10: 0000000000000002 R11: ffff888115f40000 R12: ffff88812717b008
R13: ffff888110339008 R14: 0000000000000058 R15: ffff888110339008
states_maybe_looping kernel/bpf/verifier.c:10834 [inline]
is_state_visited kernel/bpf/verifier.c:10894 [inline]
do_check+0x1b14/0xf2c0 kernel/bpf/verifier.c:11133
do_check_common+0x909/0x1290 kernel/bpf/verifier.c:13408
do_check_main kernel/bpf/verifier.c:13471 [inline]
bpf_check+0x3835/0x12bf0 kernel/bpf/verifier.c:14042
bpf_prog_load+0x12ac/0x1b50 kernel/bpf/syscall.c:2333
__sys_bpf+0x4bc/0x760 kernel/bpf/syscall.c:4633
__do_sys_bpf kernel/bpf/syscall.c:4737 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4735 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:4735
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: 0033:0x7f45d1113ca9
Code: Unable to access opcode bytes at RIP 0x7f45d1113c7f.
RSP: 002b:00007f45cfe870c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f45d1241f80 RCX: 00007f45d1113ca9
RDX: 0000000000000023 RSI: 0000000020000300 RDI: 0000000000000005
RBP: 00007f45d115f47e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f45d1241f80 R15: 00007ffdb7ba2668
Modules linked in:
---[ end trace caf5823c244b07ec ]---
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 fa 8a cd 7e 65 66 44 8b 25 01 8b cd 7e 49 8d 9e 28 03 00 00 48 89 df be 08 00 00 00 e8 ed 70 7c 00 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 f7 6e 7c 00 4c 8b 3b 66 44 89 65
RSP: 0018:ffffc900001d0680 EFLAGS: 00010006
RAX: 0000000000000065 RBX: 0000000000000329 RCX: ffff888115f40000
RDX: 0000000080010104 RSI: 0000000000000096 RDI: 00000000ffffffff
RBP: ffffc900001d06f0 R08: ffffffff81416f3b R09: 0000000000000003
R10: fffffbfff0e5244c R11: dffffc0000000001 R12: 1ffff1103ee20000
R13: ffff8881f7036580 R14: 0000000000000001 R15: dffffc0000000000
FS: 00007f45cfe876c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020cc7000 CR3: 0000000127318000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: de eb fsubrp %st,%st(3)
2: 03 44 89 ff add -0x1(%rcx,%rcx,4),%eax
6: 48 8b 05 8e b9 ab 04 mov 0x4abb98e(%rip),%rax # 0x4abb99b
d: 44 89 f1 mov %r14d,%ecx
10: 81 e1 ff 0f 00 00 and $0xfff,%ecx
16: 48 89 45 b0 mov %rax,-0x50(%rbp)
1a: 48 89 4d b8 mov %rcx,-0x48(%rbp)
1e: 4c 8b 24 c8 mov (%rax,%rcx,8),%r12
22: 4c 89 cb mov %r9,%rbx
25: 41 89 df mov %ebx,%r15d
28: eb 04 jmp 0x2e
* 2a: 4d 8b 24 24 mov (%r12),%r12 <-- trapping instruction
2e: 4d 85 e4 test %r12,%r12
31: 74 2d je 0x60
33: 45 39 74 24 08 cmp %r14d,0x8(%r12)
38: 75 f0 jne 0x2a
3a: 41 39 5c 24 0c cmp %ebx,0xc(%r12)
3f: 75 .byte 0x75