CVE-2023-53065

In the Linux kernel, the following vulnerability has been resolved:

perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output

syzkaller reportes a KASAN issue with stack-out-of-bounds.

The call trace is as follows:

dump_stack+0x9c/0xd3

print_address_description.constprop.0+0x19/0x170

__kasan_report.cold+0x6c/0x84

kasan_report+0x3a/0x50

__perf_event_header__init_id+0x34/0x290

perf_event_header__init_id+0x48/0x60

perf_output_begin+0x4a4/0x560

perf_event_bpf_output+0x161/0x1e0

perf_iterate_sb_cpu+0x29e/0x340

perf_iterate_sb+0x4c/0xc0

perf_event_bpf_event+0x194/0x2c0

__bpf_prog_put.constprop.0+0x55/0xf0

__cls_bpf_delete_prog+0xea/0x120 [cls_bpf]

cls_bpf_delete_prog_work+0x1c/0x30 [cls_bpf]

process_one_work+0x3c2/0x730

worker_thread+0x93/0x650

kthread+0x1b8/0x210

ret_from_fork+0x1f/0x30

commit 267fb27352b6 ("perf: Reduce stack usage of perf_output_begin()")

use on-stack struct perf_sample_data of the caller function.

However, perf_event_bpf_output uses incorrect parameter to convert

small-sized data (struct perf_bpf_event) into large-sized data

(struct perf_sample_data), which causes memory overwriting occurs in

__perf_event_header__init_id.