{
  "threat_severity" : "Low",
  "public_date" : "2025-12-30T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: ASoC: codecs: tx-macro: Fix for KASAN: slab-out-of-bounds",
    "id" : "2426063",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2426063"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-125",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nASoC: codecs: tx-macro: Fix for KASAN: slab-out-of-bounds\nWhen we run syzkaller we get below Out of Bound.\n\"KASAN: slab-out-of-bounds Read in regcache_flat_read\"\nBelow is the backtrace of the issue:\ndump_backtrace+0x0/0x4c8\nshow_stack+0x34/0x44\ndump_stack_lvl+0xd8/0x118\nprint_address_description+0x30/0x2d8\nkasan_report+0x158/0x198\n__asan_report_load4_noabort+0x44/0x50\nregcache_flat_read+0x10c/0x110\nregcache_read+0xf4/0x180\n_regmap_read+0xc4/0x278\n_regmap_update_bits+0x130/0x290\nregmap_update_bits_base+0xc0/0x15c\nsnd_soc_component_update_bits+0xa8/0x22c\nsnd_soc_component_write_field+0x68/0xd4\ntx_macro_digital_mute+0xec/0x140\nActually There is no need to have decimator with 32 bits.\nBy limiting the variable with short type u8 issue is resolved.", "A slab-out-of-bounds read vulnerability was found in the Linux kernel's ASoC tx-macro codec driver. The decimator variable was incorrectly sized at 32 bits, causing regcache_flat_read() to access memory beyond the allocated slab when reading register cache values during the tx_macro_digital_mute() operation. The fix limits the variable to u8 type." ],
  "statement" : "This flaw affects systems with Qualcomm audio codec hardware using the tx-macro driver. The out-of-bounds read can cause a kernel crash when audio mute operations are performed. Exploitation requires local access and the presence of specific audio hardware, limiting the affected systems.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-11-07T00:00:00Z",
    "advisory" : "RHSA-2023:6583",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-362.8.1.el9_3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2023-11-07T00:00:00Z",
    "advisory" : "RHSA-2023:6583",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-362.8.1.el9_3"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2023-54245\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-54245\nhttps://lore.kernel.org/linux-cve-announce/2025123052-CVE-2023-54245-fc10@gregkh/T" ],
  "name" : "CVE-2023-54245",
  "mitigation" : {
    "value" : "To mitigate this issue, prevent the snd_soc_tx_macro module from being loaded. See https://access.redhat.com/solutions/41278 for instructions.",
    "lang" : "en:us"
  },
  "csaw" : false
}