------------[ cut here ]------------
sk->sk_forward_alloc
WARNING: net/ipv4/af_inet.c:162 at inet_sock_destruct+0x62d/0x740 net/ipv4/af_inet.c:162, CPU#0: kworker/0:2/3103
Modules linked in:
CPU: 0 UID: 0 PID: 3103 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Workqueue: events bpf_prog_free_deferred
RIP: 0010:inet_sock_destruct+0x62d/0x740 net/ipv4/af_inet.c:162
Code: 0f 0b 90 e9 58 fe ff ff e8 30 ce 9e f7 90 0f 0b 90 e9 8b fe ff ff e8 22 ce 9e f7 90 0f 0b 90 e9 b1 fe ff ff e8 14 ce 9e f7 90 <0f> 0b 90 e9 d7 fe ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 95 fc
RSP: 0018:ffffc90000007d20 EFLAGS: 00010246
RAX: ffffffff8a26de1c RBX: dffffc0000000000 RCX: ffff888032419ec0
RDX: 0000000000000100 RSI: 0000000000000f70 RDI: 0000000000000000
RBP: 0000000000000f70 R08: ffff88807cc424a7 R09: 1ffff1100f988494
R10: dffffc0000000000 R11: ffffed100f988495 R12: ffff88807cc42200
R13: ffff88807cc42708 R14: ffff88807cc4248c R15: ffffffff8feae0c0
FS: 0000000000000000(0000) GS:ffff888125290000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000749f0000 CR4: 00000000003526f0
Call Trace:
__sk_destruct+0x8d/0x9d0 net/core/sock.c:2352
rcu_do_batch kernel/rcu/tree.c:2617 [inline]
rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869
handle_softirqs+0x22a/0x840 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:98 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:115 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:140 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:172 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:191 [inline]
RIP: 0010:kasan_check_range+0x97/0x2c0 mm/kasan/generic.c:200
Code: 00 fc ff df 4d 8d 34 19 4d 89 f4 4d 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 3d 01 00 00 4c 89 cb 48 f7 d3 4c 01 fb 41 80 3b 00 <0f> 85 9e 01 00 00 49 ff c3 48 ff c3 75 ee e9 1d 01 00 00 44 89 dd
RSP: 0018:ffffc9000dbff9a8 EFLAGS: 00000246
RAX: dffffc0000000001 RBX: ffffffffffffffff RCX: ffffffff822045ff
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff8e614780
RBP: 0000000000000000 R08: ffffffff8e614787 R09: 1ffffffff1cc28f0
R10: dffffc0000000000 R11: fffffbfff1cc28f0 R12: 0000000000000001
R13: 1ffff110067448f7 R14: fffffbfff1cc28f1 R15: 1ffffffff1cc28f0
instrument_atomic_read_write include/linux/instrumented.h:112 [inline]
atomic_long_add_return_relaxed include/linux/atomic/atomic-instrumented.h:3334 [inline]
free_vmap_area_noflush+0x14f/0x4b0 mm/vmalloc.c:2450
free_unmap_vmap_area mm/vmalloc.c:2481 [inline]
remove_vm_area+0x2b5/0x300 mm/vmalloc.c:3334
vfree+0x63/0x2f0 mm/vmalloc.c:3453
process_one_work kernel/workqueue.c:3302 [inline]
process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385
worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
----------------
Code disassembly (best guess):
0: 00 fc add %bh,%ah
2: ff lcall (bad)
3: df 4d 8d fisttps -0x73(%rbp)
6: 34 19 xor $0x19,%al
8: 4d 89 f4 mov %r14,%r12
b: 4d 29 dc sub %r11,%r12
e: 49 83 fc 10 cmp $0x10,%r12
12: 7f 29 jg 0x3d
14: 4d 85 e4 test %r12,%r12
17: 0f 84 3d 01 00 00 je 0x15a
1d: 4c 89 cb mov %r9,%rbx
20: 48 f7 d3 not %rbx
23: 4c 01 fb add %r15,%rbx
26: 41 80 3b 00 cmpb $0x0,(%r11)
* 2a: 0f 85 9e 01 00 00 jne 0x1ce <-- trapping instruction
30: 49 ff c3 inc %r11
33: 48 ff c3 inc %rbx
36: 75 ee jne 0x26
38: e9 1d 01 00 00 jmp 0x15a
3d: 44 89 dd mov %r11d,%ebp