linux-cve-announce - CVE-2023-53065: perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf

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Message-ID: <2025050211-CVE-2023-53065-0292@gregkh>
Date: Fri,  2 May 2025 17:55:30 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2023-53065: perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output

From: Greg Kroah-Hartman <gregkh@...nel.org>

Description
===========

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.

The Linux kernel CVE team has assigned CVE-2023-53065 to this issue.

Affected and fixed versions
===========================

	Issue introduced in 5.10 with commit 267fb27352b6fc9fdbad753127a239f75618ecbc and fixed in 5.10.177 with commit ddcf8320003638a06eb1e46412e045d0c5701575
	Issue introduced in 5.10 with commit 267fb27352b6fc9fdbad753127a239f75618ecbc and fixed in 5.15.105 with commit ac5f88642cb211152041f84a985309e9af4baf59
	Issue introduced in 5.10 with commit 267fb27352b6fc9fdbad753127a239f75618ecbc and fixed in 6.1.22 with commit ff8137727a2af4ad5f6e6c8b9f7ec5e8db9da86c
	Issue introduced in 5.10 with commit 267fb27352b6fc9fdbad753127a239f75618ecbc and fixed in 6.2.9 with commit 3a776fddb4e5598c8bfcd4ad094fba34f9856fc9
	Issue introduced in 5.10 with commit 267fb27352b6fc9fdbad753127a239f75618ecbc and fixed in 6.3 with commit eb81a2ed4f52be831c9fb879752d89645a312c13

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2023-53065
will be updated if fixes are backported, please check that for the most
up to date information about this issue.

Affected files
==============

The file(s) affected by this issue are:
	kernel/events/core.c

Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/ddcf8320003638a06eb1e46412e045d0c5701575
	https://git.kernel.org/stable/c/ac5f88642cb211152041f84a985309e9af4baf59
	https://git.kernel.org/stable/c/ff8137727a2af4ad5f6e6c8b9f7ec5e8db9da86c
	https://git.kernel.org/stable/c/3a776fddb4e5598c8bfcd4ad094fba34f9856fc9
	https://git.kernel.org/stable/c/eb81a2ed4f52be831c9fb879752d89645a312c13