ASoC: lpass: Fix for KASAN use_after_free out of bounds

{
  "id": "f89c7de1c617c3b94c181d018672b9039d33476834c73e873edd99185e2b5e0c",
  "url": "https://osv.dev/vulnerability/CVE-2023-53640",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ASoC: lpass: Fix for KASAN use_after_free out of bounds",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ASoC: lpass: Fix for KASAN use_after_free out of bounds When we run syzkaller we get below Out of Bounds error. \"KASAN: slab-out-of-bounds Read in regcache_flat_read\" Below is the backtrace of the issue: BUG: KASAN: slab-out-of-bounds in regcache_flat_read+0x10c/0x110 Read of size 4 at addr ffffff8088fbf714 by task syz-executor.4/14144 CPU: 6 PID: 14144 Comm: syz-executor.4 Tainted: G W Hardware name: Qualcomm Technologies, Inc. sc7280 CRD platform (rev5+) (DT) Call trace: dump_backtrace+0x0/0x4ec show_stack+0x34/0x50 dump_stack_lvl+0xdc/0x11c print_address_description+0x30/0x2d8 kasan_report+0x178/0x1e4 __asan_report_load4_noabort+0x44/0x50 regcache_flat_read+0x10c/0x110 regcache_read+0xf8/0x5a0 _regmap_read+0x45c/0x86c _regmap_update_bits+0x128/0x290 regmap_update_bits_base+0xc0/0x15c snd_soc_component_update_bits+0xa8/0x22c snd_soc_component_write_field+0x68/0xd4 tx_macro_put_dec_enum+0x1d0/0x268 snd_ctl_elem_write+0x288/0x474 By Error checking and checking valid values issue gets rectifies.",
    "evidence": "osv:CVE-2023-53640",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.114",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.31",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.3.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-53640",
      "aliases": [
        "CVE-2023-53640"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c39667ddcfc516fee084e449179d54430a558298"
                },
                {
                  "fixed": "8f1512d78b5de928f4616a871e77b58fd546e651"
                },
                {
                  "fixed": "8d81d3b0ed3610d24191d24f8e9e20f6775f0cc5"
                },
                {
                  "fixed": "f5e61e3fe799ba2fda4320af23d26d28c3302045"
                },
                {
                  "fixed": "75e5fab7db0cecb6e16b22c34608f0b40a4c7cd1"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53640.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.12.0"
                },
                {
                  "fixed": "5.15.114"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.31"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.3.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53640.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:44.198232871Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/75e5fab7db0cecb6e16b22c34608f0b40a4c7cd1",
        "https://git.kernel.org/stable/c/8d81d3b0ed3610d24191d24f8e9e20f6775f0cc5",
        "https://git.kernel.org/stable/c/8f1512d78b5de928f4616a871e77b58fd546e651",
        "https://git.kernel.org/stable/c/f5e61e3fe799ba2fda4320af23d26d28c3302045",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53640.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-53640",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53640.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-53640",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 511644,
  "published_at": "2025-10-07T15:19:40.348+00:00"
}