------------[ cut here ]------------
WARNING: CPU: 1 PID: 1410 at mm/maccess.c:226 copy_from_user_nofault+0x15c/0x1c0
Modules linked in:
CPU: 1 PID: 1410 Comm: kworker/u4:4 Not tainted 5.15.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: writeback wb_workfn (flush-7:3)
RIP: 0010:copy_from_user_nofault+0x15c/0x1c0 mm/maccess.c:226
Code: db 48 c7 c0 f2 ff ff ff 48 0f 44 c5 eb 0c e8 db d7 d5 ff 48 c7 c0 f2 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 c4 d7 d5 ff <0f> 0b e9 1e ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c ef fe ff
RSP: 0018:ffffc90000dcff70 EFLAGS: 00010246
RAX: ffffffff81aa851c RBX: 0000000000000000 RCX: ffff88801e749dc0
RDX: 0000000000000504 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81aa842d R09: ffffed1003ce93b9
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90000dcffe8
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020007000 CR3: 000000005cf98000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_compat kernel/trace/bpf_trace.c:281 [inline]
bpf_probe_read_compat+0xe4/0x180 kernel/trace/bpf_trace.c:277
bpf_prog_3d2613b5dfc7747f+0x32/0x90c
bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
bpf_trace_run3+0x1d1/0x380 kernel/trace/bpf_trace.c:1918
__bpf_trace_kmem_cache_free+0x99/0xc0 include/trace/events/kmem.h:138
__traceiter_kmem_cache_free+0x2e/0x50 include/trace/events/kmem.h:138
trace_kmem_cache_free include/trace/events/kmem.h:138 [inline]
kmem_cache_free+0x1ce/0x1f0 mm/slub.c:3516
packet_rcv+0x151/0x1210 net/packet/af_packet.c:2196
dev_queue_xmit_nit+0x9bb/0xae0 net/core/dev.c:2342
xmit_one net/core/dev.c:3612 [inline]
dev_hard_start_xmit+0x137/0x7a0 net/core/dev.c:3633
sch_direct_xmit+0x2b2/0x5e0 net/sched/sch_generic.c:342
__dev_xmit_skb net/core/dev.c:3844 [inline]
__dev_queue_xmit+0x18ee/0x3230 net/core/dev.c:4213
neigh_hh_output include/net/neighbour.h:493 [inline]
neigh_output include/net/neighbour.h:507 [inline]
ip_finish_output2+0xcd7/0x11a0 net/ipv4/ip_output.c:228
dst_output include/net/dst.h:443 [inline]
ip_local_out net/ipv4/ip_output.c:126 [inline]
__ip_queue_xmit+0x1296/0x1ce0 net/ipv4/ip_output.c:532
__tcp_transmit_skb+0x1f39/0x3810 net/ipv4/tcp_output.c:1402
tcp_delack_timer_handler+0x33c/0x780 net/ipv4/tcp_timer.c:318
tcp_delack_timer+0x187/0x2e0 net/ipv4/tcp_timer.c:345
call_timer_fn+0x16d/0x560 kernel/time/timer.c:1451
expire_timers kernel/time/timer.c:1496 [inline]
__run_timers+0x67c/0x890 kernel/time/timer.c:1767
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
__do_softirq+0x3b3/0x93a kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x155/0x240 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__should_failslab+0x1/0xd0 mm/failslab.c:18
Code: 03 00 00 00 00 00 49 c7 86 40 62 03 00 00 00 00 00 49 c7 86 50 62 03 00 00 00 00 00 31 c0 5b 41 5c 41 5e 41 5f c3 cc cc cc 55 <41> 56 53 89 f5 48 89 fb 48 c7 c0 28 10 44 91 48 c1 e8 03 49 be 00
RSP: 0018:ffffc90005586e28 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888019a15500 RCX: ffff88801e749dc0
RDX: ffff88801e749dc0 RSI: 0000000000000c40 RDI: ffff888019a15500
RBP: 0000000000000c40 R08: dffffc0000000000 R09: fffffbfff1bc8b5e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888019a15500
R13: ffff88807bc88000 R14: ffffc90005586e78 R15: 0000000000000001
should_failslab+0x5/0x20 mm/slab_common.c:1337
slab_pre_alloc_hook+0x53/0xc0 mm/slab.h:494
slab_alloc_node mm/slub.c:3134 [inline]
slab_alloc mm/slub.c:3228 [inline]
kmem_cache_alloc+0x3f/0x280 mm/slub.c:3233
f2fs_kmem_cache_alloc_nofail fs/f2fs/f2fs.h:2633 [inline]
f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2643 [inline]
add_free_nid+0xdc/0x6f0 fs/f2fs/node.c:2290
scan_free_nid_bits fs/f2fs/node.c:2441 [inline]
__f2fs_build_free_nids fs/f2fs/node.c:2475 [inline]
f2fs_build_free_nids+0x520/0x1180 fs/f2fs/node.c:2533
f2fs_balance_fs_bg+0x13e/0x730 fs/f2fs/segment.c:550
f2fs_write_node_pages+0x142/0x6a0 fs/f2fs/node.c:2109
do_writepages+0x481/0x730 mm/page-writeback.c:2364
__writeback_single_inode+0x15b/0xe30 fs/fs-writeback.c:1647
writeback_sb_inodes+0xbce/0x1a40 fs/fs-writeback.c:1930
wb_writeback+0x451/0xc50 fs/fs-writeback.c:2104
wb_do_writeback fs/fs-writeback.c:2247 [inline]
wb_workfn+0x46c/0x1130 fs/fs-writeback.c:2288
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300
----------------
Code disassembly (best guess):
0: 03 00 add (%rax),%eax
2: 00 00 add %al,(%rax)
4: 00 00 add %al,(%rax)
6: 49 c7 86 40 62 03 00 movq $0x0,0x36240(%r14)
d: 00 00 00 00
11: 49 c7 86 50 62 03 00 movq $0x0,0x36250(%r14)
18: 00 00 00 00
1c: 31 c0 xor %eax,%eax
1e: 5b pop %rbx
1f: 41 5c pop %r12
21: 41 5e pop %r14
23: 41 5f pop %r15
25: c3 ret
26: cc int3
27: cc int3
28: cc int3
29: 55 push %rbp
* 2a: 41 56 push %r14 <-- trapping instruction
2c: 53 push %rbx
2d: 89 f5 mov %esi,%ebp
2f: 48 89 fb mov %rdi,%rbx
32: 48 c7 c0 28 10 44 91 mov $0xffffffff91441028,%rax
39: 48 c1 e8 03 shr $0x3,%rax
3d: 49 rex.WB
3e: be .byte 0xbe