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BUG: KASAN: slab-out-of-bounds in predicate_parse kernel/trace/trace_events_filter.c:557 [inline]
BUG: KASAN: slab-out-of-bounds in process_preds+0x191f/0x19d0 kernel/trace/trace_events_filter.c:1509
Write of size 4 at addr ffff880198317170 by task syz-executor5/2122

CPU: 1 PID: 2122 Comm: syz-executor5 Not tainted 4.17.0+ #39
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1b9/0x294 lib/dump_stack.c:113
 print_address_description+0x6c/0x20b mm/kasan/report.c:256
 kasan_report_error mm/kasan/report.c:354 [inline]
 kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412
 __asan_report_store4_noabort+0x17/0x20 mm/kasan/report.c:437
 predicate_parse kernel/trace/trace_events_filter.c:557 [inline]
 process_preds+0x191f/0x19d0 kernel/trace/trace_events_filter.c:1509
 create_filter+0x155/0x270 kernel/trace/trace_events_filter.c:1717
 ftrace_profile_set_filter+0x130/0x2e0 kernel/trace/trace_events_filter.c:2042
 perf_event_set_filter+0x22e/0x1230 kernel/events/core.c:9078
 _perf_ioctl+0x84c/0x15e0 kernel/events/core.c:5059
 perf_ioctl+0x59/0x80 kernel/events/core.c:5110
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x1cf/0x16f0 fs/ioctl.c:684
 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:701
 __do_sys_ioctl fs/ioctl.c:708 [inline]
 __se_sys_ioctl fs/ioctl.c:706 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:706
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455a99
Code: 1d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 
RSP: 002b:00007f090ff2fc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f090ff306d4 RCX: 0000000000455a99
RDX: 0000000020000300 RSI: 0000000040082406 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004c4e70 R14: 00000000004cc5d0 R15: 0000000000000000

Allocated by task 545:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:448
 set_track mm/kasan/kasan.c:460 [inline]
 kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553
 kmem_cache_alloc_node_trace+0x150/0x770 mm/slab.c:3663
 kmalloc_node include/linux/slab.h:551 [inline]
 kzalloc_node include/linux/slab.h:717 [inline]
 __get_vm_area_node+0x12d/0x390 mm/vmalloc.c:1389
 __vmalloc_node_range+0xc4/0x760 mm/vmalloc.c:1741
 __vmalloc_node mm/vmalloc.c:1791 [inline]
 __vmalloc+0x45/0x50 mm/vmalloc.c:1797
 bpf_prog_alloc+0xdb/0x3c0 kernel/bpf/core.c:85
 bpf_prog_load+0x435/0x1c70 kernel/bpf/syscall.c:1311
 __do_sys_bpf kernel/bpf/syscall.c:2366 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:2328 [inline]
 __x64_sys_bpf+0x36c/0x510 kernel/bpf/syscall.c:2328
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 32385:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:448
 set_track mm/kasan/kasan.c:460 [inline]
 __kasan_slab_free+0x11a/0x170 mm/kasan/kasan.c:521
 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528
 __cache_free mm/slab.c:3498 [inline]
 kfree+0xd9/0x260 mm/slab.c:3813
 __vunmap+0x333/0x460 mm/vmalloc.c:1532
 vfree+0x68/0x100 mm/vmalloc.c:1593
 bpf_jit_free+0xf9/0x460
 bpf_prog_free_deferred+0x2d8/0x470 kernel/bpf/core.c:1713
 process_one_work+0xc64/0x1b70 kernel/workqueue.c:2153
 worker_thread+0x181/0x13a0 kernel/workqueue.c:2296
 kthread+0x345/0x410 kernel/kthread.c:240
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412

The buggy address belongs to the object at ffff880198317100
 which belongs to the cache kmalloc-64 of size 64
The buggy address is located 48 bytes to the right of
 64-byte region [ffff880198317100, ffff880198317140)
The buggy address belongs to the page:
page:ffffea000660c5c0 count:1 mapcount:0 mapping:ffff8801da800340 index:0x0
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffffea00075c70c8 ffffea00073d1588 ffff8801da800340
raw: 0000000000000000 ffff880198317000 0000000100000020 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff880198317000: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff880198317080: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
>ffff880198317100: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
                                                             ^
 ffff880198317180: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc
 ffff880198317200: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
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