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Vulnerability · Published Oct 7, 2025 · Assigned by Linux

CVE-2023-53640ASoC: lpass: Fix for KASAN use_after_free out of bounds

High 7.3

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.2%top 88.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.37-1DEBIAN-CVE-2023-53640
Debian:13linux6.3.7-1DEBIAN-CVE-2023-53640
Debian:14linux6.3.7-1DEBIAN-CVE-2023-53640
Ubuntu:22.04:LTSlinux5.15.0-83.92UBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-aws5.15.0-1044.49UBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-azure5.15.0-1046.53UBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-53640
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1046.53.1UBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-gcp5.15.0-1041.49UBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-53640
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-gke5.15.0-1041.46UBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1027.32UBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-53640
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-ibm5.15.0-1037.40UBUNTU-CVE-2023-53640
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1039.45UBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-kvm5.15.0-1041.46UBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-83.92UBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-53640
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1032.32UBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1017.17UBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1004.4UBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-53640
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-53640
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-oracle5.15.0-1042.48UBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-raspi5.15.0-1037.40UBUNTU-CVE-2023-53640
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53640
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53640
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-53640
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1025.29UBUNTU-CVE-2023-53640

Affected products (as reported)

VendorProductVersions
Linux Linux c39667ddcfc516fee084e449179d54430a558298 – before 8f1512d78b5de928f4616a871e77b58fd546e651c39667ddcfc516fee084e449179d54430a558298 – before 8d81d3b0ed3610d24191d24f8e9e20f6775f0cc5c39667ddcfc516fee084e449179d54430a558298 – before f5e61e3fe799ba2fda4320af23d26d28c3302045c39667ddcfc516fee084e449179d54430a558298 – before 75e5fab7db0cecb6e16b22c34608f0b40a4c7cd1
Linux Linux 5.12

References