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Vulnerability · Published Dec 27, 2024 · Assigned by Linux

CVE-2024-56532ALSA: us122l: Use snd_card_free_when_closed() at disconnection

Medium 5.5

In plain English

A medium-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)5.5Medium
Exploit odds (30 days)0.2%top 87.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: ALSA: us122l: Use snd_card_free_when_closed() at disconnection The USB disconnect callback is supposed to be short and not too-long waiting. OTOH, the current code uses snd_card_free() at disconnection, but this waits for the close of all used fds, hence it can take long. It eventually blocks the upper layer USB ioctls, which may trigger a soft lockup. An easy workaround is to replace snd_card_free() with snd_card_free_when_closed(). This variant returns immediately while the release of resources is done asynchronously by the card device release at the last close. The loop of us122l->mmap_count check is dropped as well. The check is useless for the asynchronous operation with *_when_closed().

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.123-1DEBIAN-CVE-2024-56532
Debian:13linux6.12.3-1DEBIAN-CVE-2024-56532
Debian:14linux6.12.3-1DEBIAN-CVE-2024-56532
Ubuntu:22.04:LTSlinux5.15.0-135.146UBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux6.8.0-58.60UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-aws5.15.0-1080.87UBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-aws6.8.0-1027.29UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1027.29~22.04.1UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-azure5.15.0-1084.93UBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-azure6.8.0-1027.32UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1012.12~24.04.1UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1027.32~22.04.1UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1084.93.1UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1014.15UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-gcp5.15.0-1079.88UBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-gcp6.8.0-1028.30UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1011.11~24.04.1UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1028.30~22.04.1UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-gke5.15.0-1077.83UBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-gke6.8.0-1023.27UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1062.70UBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1010.12UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-58.60~22.04.1UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-ibm5.15.0-1072.75UBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-ibm6.8.0-1024.24UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1024.24~22.04.1UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-intel-iot-realtime5.15.0-1073.75UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1075.81UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-kvm5.15.0-1076.81UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-135.146UBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-58.60.1UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-58.60.1~22.04.1UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1074.75UBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1026.29UBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-nvidia-6.116.11.0-1007.7UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1026.29~22.04.1UBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1026.29.1UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1033.33UBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1008.8UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1021.21UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1015.15UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1026.26UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-oracle5.15.0-1077.83UBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-oracle6.8.0-1024.25UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1024.25~22.04.1UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-raspi5.15.0-1074.77UBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-raspi6.8.0-1028.32UBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-riscv6.8.0-58.60.1UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-58.60.1~22.04.1UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-56532
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1017.18UBUNTU-CVE-2024-56532
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1044.48UBUNTU-CVE-2024-56532

Affected products (as reported)

VendorProductVersions
Linux Linux 030a07e441296c372f946cd4065b5d831d8dc40c – before 020cbc4d7414f0962004213e2b7bc5cc607e9ec7030a07e441296c372f946cd4065b5d831d8dc40c – before 75f418b249d84021865eaa59515d3ed9b75ce4d6030a07e441296c372f946cd4065b5d831d8dc40c – before bf0aa35a7cb8602cccf2387712114e836f65c154030a07e441296c372f946cd4065b5d831d8dc40c – before 9a48bd2184b142c92a4e17eac074c61fcf975bc9030a07e441296c372f946cd4065b5d831d8dc40c – before bc778ad3e495333eebda36fe91d5b2c93109cc16030a07e441296c372f946cd4065b5d831d8dc40c – before 2938dd2648522336133c151dd67bb9bf01cbd390030a07e441296c372f946cd4065b5d831d8dc40c – before 9b27924dc8d7f8a8c35e521287d4ccb9a006e597030a07e441296c372f946cd4065b5d831d8dc40c – before 9d5c530e4d70f64b1114f2cc29ac690ba7ac4a38
Linux Linux 2.6.28

Weakness: CWE-667 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References