Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 UID: 0 PID: 5327 Comm: syz.4.34 Not tainted 6.10.0-syzkaller-12246-g786c8248dbd3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:bq_flush_to_queue+0x44/0x610 kernel/bpf/cpumap.c:675
Code: df e8 40 d8 d6 ff 49 8d 5e 50 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 86 23 3e 00 48 8b 2b 48 89 e8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 1d 05 00 00 44 8b 65 00 4d 8d 6e 58 4c
RSP: 0018:ffffc90000007a80 EFLAGS: 00010256
RAX: 0000000000000000 RBX: ffff88807e4bcc10 RCX: ffff88802ba41e00
RDX: 0000000000000101 RSI: 0000000000000000 RDI: ffff88807e4bcbc0
RBP: 0000000000000000 R08: ffffffff89697d9a R09: 1ffffffff1f5f4bd
R10: dffffc0000000000 R11: fffffbfff1f5f4be R12: 0000000000000001
R13: ffffc90003b2f7c0 R14: ffff88807e4bcbc0 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb5d31f3750 CR3: 000000007fe7c000 CR4: 0000000000350ef0
Call Trace:
__cpu_map_flush+0x5d/0xd0 kernel/bpf/cpumap.c:767
xdp_do_check_flushed+0x136/0x240 net/core/filter.c:4304
__napi_poll+0xe4/0x490 net/core/dev.c:6774
napi_poll net/core/dev.c:6840 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:6962
handle_softirqs+0x2c6/0x970 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
common_interrupt+0xaa/0xd0 arch/x86/kernel/irq.c:278
asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
RIP: 0010:deref_stack_reg+0x0/0x260 arch/x86/kernel/unwind_orc.c:402
Code: e8 35 9a b9 00 e9 60 fe ff ff e8 bb 7e 4f 0a 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <55> 41 57 41 56 41 55 41 54 53 48 83 ec 28 49 89 d6 48 89 34 24 48
RSP: 0018:ffffc90003b2f2c0 EFLAGS: 00000283
RAX: fffffffffffffff0 RBX: ffffffff903175d6 RCX: 0000000000000000
RDX: ffffc90003b2f3e0 RSI: ffffc90003b2fec8 RDI: ffffc90003b2f3a0
RBP: ffffc90003b2f3a0 R08: 0000000000000005 R09: ffffffff814120bf
R10: 0000000000000003 R11: ffff88802ba41e00 R12: ffffc90003b2fed0
R13: dffffc0000000000 R14: ffffc90003b2f3f0 R15: 1ffff92000765e74
unwind_next_frame+0x1ab8/0x2a00 arch/x86/kernel/unwind_orc.c:648
arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
poison_slab_object+0xe0/0x150 mm/kasan/common.c:240
__kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2252 [inline]
slab_free mm/slub.c:4473 [inline]
kmem_cache_free+0x145/0x350 mm/slub.c:4548
remove_vma mm/mmap.c:187 [inline]
exit_mmap+0x645/0xc80 mm/mmap.c:3406
__mmput+0x115/0x390 kernel/fork.c:1345
exit_mm+0x220/0x310 kernel/exit.c:571
do_exit+0x9b2/0x27f0 kernel/exit.c:869
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
get_signal+0x16a1/0x1740 kernel/signal.c:2917
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6523975f19
Code: Unable to access opcode bytes at 0x7f6523975eef.
RSP: 002b:00007f65247be0f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f6523b05f68 RCX: 00007f6523975f19
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6523b05f68
RBP: 00007f6523b05f60 R08: 00007f65247be6c0 R09: 00007f65247be6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6523b05f6c
R13: 000000000000000b R14: 00007ffe84af4d30 R15: 00007ffe84af4e18
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bq_flush_to_queue+0x44/0x610 kernel/bpf/cpumap.c:675
Code: df e8 40 d8 d6 ff 49 8d 5e 50 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 86 23 3e 00 48 8b 2b 48 89 e8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 1d 05 00 00 44 8b 65 00 4d 8d 6e 58 4c
RSP: 0018:ffffc90000007a80 EFLAGS: 00010256
RAX: 0000000000000000 RBX: ffff88807e4bcc10 RCX: ffff88802ba41e00
RDX: 0000000000000101 RSI: 0000000000000000 RDI: ffff88807e4bcbc0
RBP: 0000000000000000 R08: ffffffff89697d9a R09: 1ffffffff1f5f4bd
R10: dffffc0000000000 R11: fffffbfff1f5f4be R12: 0000000000000001
R13: ffffc90003b2f7c0 R14: ffff88807e4bcbc0 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb5d31f3750 CR3: 000000007fe7c000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
0: df e8 fucomip %st(0),%st
2: 40 d8 d6 rex fcom %st(6)
5: ff 49 8d decl -0x73(%rcx)
8: 5e pop %rsi
9: 50 push %rax
a: 48 89 d8 mov %rbx,%rax
d: 48 c1 e8 03 shr $0x3,%rax
11: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1)
16: 74 08 je 0x20
18: 48 89 df mov %rbx,%rdi
1b: e8 86 23 3e 00 call 0x3e23a6
20: 48 8b 2b mov (%rbx),%rbp
23: 48 89 e8 mov %rbp,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax <-- trapping instruction
2f: 84 c0 test %al,%al
31: 0f 85 1d 05 00 00 jne 0x554
37: 44 8b 65 00 mov 0x0(%rbp),%r12d
3b: 4d 8d 6e 58 lea 0x58(%r14),%r13
3f: 4c rex.WR