==================================================================
BUG: KASAN: vmalloc-out-of-bounds in __bpf_trace_run kernel/trace/bpf_trace.c:2045 [inline]
BUG: KASAN: vmalloc-out-of-bounds in bpf_trace_run1+0x3b0/0x3c0 kernel/trace/bpf_trace.c:2081
Read of size 8 at addr ffffc90000cb8030 by task syz-executor.2/20571

CPU: 0 PID: 20571 Comm: syz-executor.2 Not tainted 5.9.0-rc6-syzkaller #0
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+0x198/0x1fd lib/dump_stack.c:118
 print_address_description.constprop.0.cold+0x5/0x497 mm/kasan/report.c:383
 __kasan_report mm/kasan/report.c:513 [inline]
 kasan_report.cold+0x1f/0x37 mm/kasan/report.c:530
 __bpf_trace_run kernel/trace/bpf_trace.c:2045 [inline]
 bpf_trace_run1+0x3b0/0x3c0 kernel/trace/bpf_trace.c:2081
 __bpf_trace_block_plug+0x8b/0xc0 block/blk-core.c:870
 trace_block_plug+0x165/0x2e0 include/trace/events/block.h:470
 blk_mq_submit_bio+0xd3f/0x1760 block/blk-mq.c:2213
 __submit_bio_noacct_mq block/blk-core.c:1180 [inline]
 submit_bio_noacct+0xc78/0x12b0 block/blk-core.c:1213
 submit_bio+0x263/0x5b0 block/blk-core.c:1283
 ext4_io_submit+0x181/0x210 fs/ext4/page-io.c:382
 ext4_writepages+0x91c/0x3960 fs/ext4/inode.c:2739
 do_writepages+0xec/0x290 mm/page-writeback.c:2352
 __filemap_fdatawrite_range+0x2a1/0x380 mm/filemap.c:422
 file_write_and_wait_range+0x169/0x200 mm/filemap.c:761
 ext4_sync_file+0x459/0x1090 fs/ext4/fsync.c:151
 vfs_fsync_range+0x13a/0x220 fs/sync.c:200
 generic_write_sync include/linux/fs.h:2747 [inline]
 ext4_buffered_write_iter+0x34a/0x4a0 fs/ext4/file.c:276
 ext4_file_write_iter+0x1f0/0x13f0 fs/ext4/file.c:660
 call_write_iter include/linux/fs.h:1882 [inline]
 new_sync_write+0x422/0x650 fs/read_write.c:503
 vfs_write+0x5ad/0x730 fs/read_write.c:578
 ksys_write+0x12d/0x250 fs/read_write.c:631
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45de59
Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fee376dbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000003ab40 RCX: 000000000045de59
RDX: 0000000000000006 RSI: 0000000020000340 RDI: 0000000000000006
RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffeee01383f R14: 00007fee376dc9c0 R15: 000000000118bf2c


Memory state around the buggy address:
 ffffc90000cb7f00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc90000cb7f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
>ffffc90000cb8000: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
                                     ^
 ffffc90000cb8080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc90000cb8100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
==================================================================