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BUG: KASAN: vmalloc-out-of-bounds in __bpf_trace_run kernel/trace/bpf_trace.c:2074 [inline]
BUG: KASAN: vmalloc-out-of-bounds in bpf_trace_run1+0x3b0/0x3c0 kernel/trace/bpf_trace.c:2110
Read of size 8 at addr ffffc90000ffe030 by task kworker/u4:4/226

CPU: 1 PID: 226 Comm: kworker/u4:4 Not tainted 5.10.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: writeback wb_workfn (flush-8:0)
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 print_address_description.constprop.0.cold+0x5/0x4c8 mm/kasan/report.c:385
 __kasan_report mm/kasan/report.c:545 [inline]
 kasan_report.cold+0x1f/0x37 mm/kasan/report.c:562
 __bpf_trace_run kernel/trace/bpf_trace.c:2074 [inline]
 bpf_trace_run1+0x3b0/0x3c0 kernel/trace/bpf_trace.c:2110
 __bpf_trace_block_plug+0x8b/0xc0 block/blk-core.c:716
 trace_block_plug+0x138/0x280 include/trace/events/block.h:470
 blk_mq_submit_bio+0xcf2/0x1770 block/blk-mq.c:2219
 __submit_bio_noacct_mq block/blk-core.c:1026 [inline]
 submit_bio_noacct+0xa27/0xe30 block/blk-core.c:1059
 submit_bio+0x263/0x5b0 block/blk-core.c:1129
 ext4_io_submit+0x181/0x210 fs/ext4/page-io.c:382
 ext4_writepages+0x978/0x38a0 fs/ext4/inode.c:2750
 do_writepages+0xec/0x290 mm/page-writeback.c:2352
 __writeback_single_inode+0x122/0x1180 fs/fs-writeback.c:1461
 writeback_sb_inodes+0x53d/0xef0 fs/fs-writeback.c:1721
 __writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1790
 wb_writeback+0x814/0xc40 fs/fs-writeback.c:1896
 wb_check_old_data_flush fs/fs-writeback.c:1998 [inline]
 wb_do_writeback fs/fs-writeback.c:2051 [inline]
 wb_workfn+0x891/0x12d0 fs/fs-writeback.c:2080
 process_one_work+0x933/0x15a0 kernel/workqueue.c:2272
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2418
 kthread+0x3af/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296


Memory state around the buggy address:
 ffffc90000ffdf00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc90000ffdf80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
>ffffc90000ffe000: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
                                     ^
 ffffc90000ffe080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc90000ffe100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
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